describe("Item pane", function () {
	var win, doc, ZoteroPane, Zotero_Tabs, ZoteroContextPane, itemsView;

	async function waitForPreviewBoxRender(box, itemID) {
		let res = await waitForCallback(
			() => box._asyncRenderItemID && !box._asyncRendering
				&& (!itemID || box._asyncRenderItemID == itemID),
			100, 10);
		if (res instanceof Error) {
			throw res;
		}
		return true;
	}

	async function waitForPreviewBoxReader(box, itemID) {
		let preview = await getBoxPreview(box);
		if (!preview) return false;
		await waitForPreviewBoxRender(box);
		let res = await waitForCallback(
			() => preview._reader?.itemID == itemID
				&& !preview._isProcessingTask && !preview._lastTask
			, 100, 10);
		if (res instanceof Error) {
			throw res;
		}
		// Wait for reader initialization with timeout
		let initTimeout = new Promise(resolve => setTimeout(() => resolve(false), 5000));
		let initResult = await Promise.race([
			preview._reader._initPromise,
			initTimeout
		]);
		if (!initResult) {
			return false;
		}
		return true;
	}

	async function isPreviewDisplayed(box) {
		let preview = await getBoxPreview(box);
		if (!preview) return false;
		return !!(preview.hasPreview
			&& win.getComputedStyle(preview).display !== "none");
	}

	async function getBoxPreview(box) {
		try {
			// Since we are lazy loading the preview, should wait for the preview to be initialized
			await waitForCallback(
				() => !!box._preview
				, 10, 0.5);
		}
		catch (e) {
			Zotero.logError(e);
			// Return false if waitForCallback fails
			return false;
		}
		return box._preview;
	}
	
	before(function* () {
		win = yield loadZoteroPane();
		doc = win.document;
		ZoteroPane = win.ZoteroPane;
		Zotero_Tabs = win.Zotero_Tabs;
		ZoteroContextPane = win.ZoteroContextPane;
		itemsView = win.ZoteroPane.itemsView;
	});
	
	after(function () {
		Zotero_Tabs.select("zotero-pane");
		Zotero_Tabs.closeAll();
		win.close();
	});

	describe("Item pane header", function () {
		let itemData = {
			itemType: 'book',
			title: 'Birds - A Primer of Ornithology (Teach Yourself Books)',
			creators: [{
				creatorType: 'author',
				lastName: 'Hyde',
				firstName: 'George E.'
			}]
		};
		
		before(async function () {
			await Zotero.Styles.init();
		});
		
		after(function () {
			Zotero.Prefs.clear('itemPaneHeader');
			Zotero.Prefs.clear('itemPaneHeader.bibEntry.style');
			Zotero.Prefs.clear('itemPaneHeader.bibEntry.locale');
		});
		
		it("should be hidden when set to None mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'none');
			await createDataObject('item', itemData);
			assert.equal(doc.querySelector('item-pane-header').clientHeight, 0);
		});

		it("should show custom header elements when set to None mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'none');

			// Use feed item toggle button as an example
			let feed = await createFeed();
			await selectLibrary(win, feed.libraryID);
			await waitForItemsLoad(win);

			var item = await createDataObject('feedItem', { libraryID: feed.libraryID });
			await ZoteroPane.selectItem(item.id);
			let feedButton = ZoteroPane.itemPane._itemDetails.querySelector('.feed-item-toggleRead-button');
			assert.exists(feedButton);

			await selectLibrary(win);
		});
		
		it("should show title when set to Title mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'title');
			let item = await createDataObject('item', itemData);
			
			assert.isFalse(doc.querySelector('item-pane-header .title').hidden);
			assert.isTrue(doc.querySelector('item-pane-header .creator-year').hidden);
			assert.isTrue(doc.querySelector('item-pane-header .bib-entry').hidden);
			
			assert.equal(doc.querySelector('item-pane-header .title editable-text').value, item.getField('title'));
		});
		
		it("should show title/creator/year when set to Title/Creator/Year mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'titleCreatorYear');
			let item = await createDataObject('item', itemData);
			item.setField('date', '1962-05-01');
			await item.saveTx();
			
			assert.isTrue(doc.querySelector('item-pane-header .bib-entry').hidden);
			assert.isFalse(doc.querySelector('item-pane-header .title').hidden);
			assert.isFalse(doc.querySelector('item-pane-header .creator-year').hidden);
			
			assert.equal(doc.querySelector('item-pane-header .title editable-text').value, item.getField('title'));
			let creatorYearText = doc.querySelector('item-pane-header .creator-year').textContent;
			assert.include(creatorYearText, 'Hyde');
			assert.include(creatorYearText, '1962');
		});

		it("should show bib entry when set to Bibliography Entry mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'bibEntry');
			Zotero.Prefs.set('itemPaneHeader.bibEntry.style', 'http://www.zotero.org/styles/apa');
			await createDataObject('item', itemData);

			assert.isFalse(doc.querySelector('item-pane-header .bib-entry').hidden);
			assert.isTrue(doc.querySelector('item-pane-header .title').hidden);
			assert.isTrue(doc.querySelector('item-pane-header .creator-year').hidden);

			let bibEntry = doc.querySelector('item-pane-header .bib-entry').shadowRoot.firstElementChild.textContent;
			assert.equal(bibEntry.trim(), 'Hyde, G. E. (n.d.). Birds—A Primer of Ornithology (Teach Yourself Books).');
		});

		it("should update bib entry on item change when set to Bibliography Entry mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'bibEntry');
			Zotero.Prefs.set('itemPaneHeader.bibEntry.style', 'http://www.zotero.org/styles/apa');
			let item = await createDataObject('item', itemData);
			
			let bibEntryElem = doc.querySelector('item-pane-header .bib-entry').shadowRoot.firstElementChild;
			
			assert.equal(bibEntryElem.textContent.trim(), 'Hyde, G. E. (n.d.). Birds—A Primer of Ornithology (Teach Yourself Books).');
			
			item.setField('date', '1962-05-01');
			await item.saveTx();
			assert.equal(bibEntryElem.textContent.trim(), 'Hyde, G. E. (1962). Birds—A Primer of Ornithology (Teach Yourself Books).');
			
			item.setCreators([
				{
					creatorType: 'author',
					lastName: 'Smith',
					firstName: 'John'
				}
			]);
			await item.saveTx();
			assert.equal(bibEntryElem.textContent.trim(), 'Smith, J. (1962). Birds—A Primer of Ornithology (Teach Yourself Books).');
			
			item.setField('title', 'Birds');
			await item.saveTx();
			assert.equal(bibEntryElem.textContent.trim(), 'Smith, J. (1962). Birds.');
		});

		it("should update bib entry on style change when set to Bibliography Entry mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'bibEntry');
			Zotero.Prefs.set('itemPaneHeader.bibEntry.style', 'http://www.zotero.org/styles/apa');
			await createDataObject('item', itemData);

			let bibEntryElem = doc.querySelector('item-pane-header .bib-entry').shadowRoot.firstElementChild;
			
			assert.equal(bibEntryElem.textContent.trim(), 'Hyde, G. E. (n.d.). Birds—A Primer of Ornithology (Teach Yourself Books).');
			
			Zotero.Prefs.set('itemPaneHeader.bibEntry.style', 'http://www.zotero.org/styles/chicago-author-date');
			assert.equal(bibEntryElem.textContent.trim(), 'Hyde, George E. n.d. Birds - A Primer of Ornithology (Teach Yourself Books).');
		});

		it("should update bib entry on locale change when set to Bibliography Entry mode", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'bibEntry');
			Zotero.Prefs.set('itemPaneHeader.bibEntry.style', 'http://www.zotero.org/styles/apa');
			await createDataObject('item', itemData);

			let bibEntryElem = doc.querySelector('item-pane-header .bib-entry').shadowRoot.firstElementChild;

			assert.equal(bibEntryElem.textContent.trim(), 'Hyde, G. E. (n.d.). Birds—A Primer of Ornithology (Teach Yourself Books).');

			Zotero.Prefs.set('itemPaneHeader.bibEntry.locale', 'de-DE');
			assert.equal(bibEntryElem.textContent.trim(), 'Hyde, G. E. (o. J.). Birds—A Primer of Ornithology (Teach Yourself Books).');
		});

		it("should fall back to Title/Creator/Year when citation style is missing", async function () {
			Zotero.Prefs.set('itemPaneHeader', 'bibEntry');
			Zotero.Prefs.set('itemPaneHeader.bibEntry.style', 'http://www.zotero.org/styles/an-id-that-does-not-match-any-citation-style');
			await createDataObject('item', itemData);

			assert.isTrue(doc.querySelector('item-pane-header .bib-entry').hidden);
			assert.isFalse(doc.querySelector('item-pane-header .title').hidden);
			assert.isFalse(doc.querySelector('item-pane-header .creator-year').hidden);
		});

		it("should update custom header for items in the trash", async function () {
			var item1 = await createDataObject('item', { deleted: true });
			var item2 = await createDataObject('item', { deleted: true });
			
			await selectTrash(win);
			await ZoteroPane.selectItems([item1.id, item2.id]);
			await waitForFrame();
			
			let restoreButton = win.document.querySelector('#zotero-item-message .custom-head .item-restore-button');
			assert.exists(restoreButton);
			assert.exists(win.document.querySelector('#zotero-item-message .custom-head .item-delete-button'));

			let refreshTrashPromise = waitForNotifierEvent('refresh', 'trash');
			await restoreButton.click();
			let ids = await waitForItemEvent('modify');
			await refreshTrashPromise;
			assert.equal(ids.length, 2);
			
			assert.notExists(win.document.querySelector('#zotero-item-message .custom-head .item-restore-button'));
			
			let promise = waitForItemEvent('delete');
			await Zotero.DB.executeTransaction(async function () {
				await item1.erase();
				await item2.erase();
			});
			await promise;

			await selectLibrary(win);
		});
	});
	
	describe("Info pane", function () {
		before(async () => {
			await activateZoteroPane();
		});
		it("should place Title after Item Type and before creators", async function () {
			var item = await createDataObject('item');
			var itemPane = win.ZoteroPane.itemPane;
			var fields = [...itemPane.querySelectorAll('.meta-label')]
				.map(x => x.getAttribute('fieldname'));
			assert.equal(fields[0], 'itemType');
			assert.equal(fields[1], 'title');
			assert.isTrue(fields[2].startsWith('creator'));
		});
		
		it("should refresh on item update", async function () {
			var item = new Zotero.Item('book');
			var id = await item.saveTx();
			
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			var label = itemBox.querySelectorAll('[fieldname="series"]')[1];
			assert.equal(label.value, '');
			
			let promise = waitForItemEvent('modify');
			item.setField('series', 'Test');
			await item.saveTx();
			await promise;
			
			label = itemBox.querySelectorAll('[fieldname="series"]')[1];
			assert.equal(label.value, 'Test');
			
			await Zotero.Items.erase(id);
		});
		
		
		it("should swap creator names", async function () {
			var item = new Zotero.Item('book');
			item.setCreators([
				{
					firstName: "First",
					lastName: "Last",
					creatorType: "author"
				}
			]);
			await item.saveTx();
			
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			var lastName = itemBox.querySelector('#itembox-field-value-creator-0-lastName');
			var parent = lastName.closest(".creator-type-value");
			assert.property(parent, 'oncontextmenu');
			assert.isFunction(parent.oncontextmenu);
			
			var menupopup = itemBox.querySelector('#zotero-creator-transform-menu');
			// Fake a right-click
			itemBox._popupNode = parent;
			menupopup.openPopup(
				parent, "after_start", 0, 0, true, false, new MouseEvent('click', { button: 2 })
			);
			var menuitem = menupopup.getElementsByTagName('menuitem')[0];
			menuitem.click();
			await waitForItemEvent('modify');
			
			var creator = item.getCreators()[0];
			assert.propertyVal(creator, 'firstName', 'Last');
			assert.propertyVal(creator, 'lastName', 'First');
		});
		
		
		it("shouldn't show Swap Names option for single-field mode", async function () {
			var item = new Zotero.Item('book');
			item.setCreators([
				{
					name: "Name",
					creatorType: "author"
				}
			]);
			await item.saveTx();
			
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			var label = itemBox.querySelector('#itembox-field-value-creator-0-lastName');
			var firstlast = label.closest('.creator-type-value');
			var menupopup = itemBox.querySelector('#zotero-creator-transform-menu');
			// Fake a right-click
			itemBox._popupNode = firstlast;
			menupopup.openPopup(
				firstlast, "after_start", 0, 0, true, false, new MouseEvent('click', { button: 2 })
			);
			
			var menuitem = doc.getElementById('creator-transform-swap-names');
			assert.isTrue(menuitem.hidden);
		});

		it("should reorder creators", async function () {
			var item = new Zotero.Item('book');
			item.setCreators([
				{
					lastName: "One",
					creatorType: "author"
				},
				{
					lastName: "Two",
					creatorType: "author"
				},
				{
					lastName: "Three",
					creatorType: "author"
				}
			]);
			await item.saveTx();
			
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			// Move One to the last spot
			itemBox.moveCreator(0, null, 3);
			await waitForItemEvent('modify');
			let thirdLastName = itemBox.querySelector("[fieldname='creator-2-lastName']").value;
			assert.equal(thirdLastName, "One");

			// Move One to the second spot
			itemBox.moveCreator(2, null, 1);
			await waitForItemEvent('modify');
			let secondLastname = itemBox.querySelector("[fieldname='creator-1-lastName']").value;
			assert.equal(secondLastname, "One");

			// Move Two down
			itemBox.moveCreator(0, 'down');
			await waitForItemEvent('modify');
			secondLastname = itemBox.querySelector("[fieldname='creator-1-lastName']").value;
			let firstLastName = itemBox.querySelector("[fieldname='creator-0-lastName']").value;
			assert.equal(secondLastname, "Two");
			assert.equal(firstLastName, "One");

			// Move Three up
			itemBox.moveCreator(2, 'up');
			await waitForItemEvent('modify');
			secondLastname = itemBox.querySelector("[fieldname='creator-1-lastName']").value;
			thirdLastName = itemBox.querySelector("[fieldname='creator-2-lastName']").value;
			assert.equal(secondLastname, "Three");
			assert.equal(thirdLastName, "Two");
		});
		
		
		// Note: This issue applies to all context menus in the item box (text transform, name swap),
		// though the others aren't tested. This might go away with the XUL->HTML transition.
		it.skip("should save open field after changing creator type", function* () {
			var item = new Zotero.Item('book');
			item.setCreators([
				{
					firstName: "First",
					lastName: "Last",
					creatorType: "author"
				}
			]);
			var id = yield item.saveTx();
			
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			var label = itemBox.querySelector('[fieldname="place"]');
			label.click();
			var textbox = itemBox.querySelector('[fieldname="place"]');
			textbox.value = "Place";
			
			var menuLabel = itemBox.querySelector('[fieldname="creator-0-typeID"]');
			menuLabel.click();
			var menupopup = itemBox._creatorTypeMenu;
			var menuItems = menupopup.getElementsByTagName('menuitem');
			menuItems[1].click();
			yield waitForItemEvent('modify');
			
			assert.equal(item.getField('place'), 'Place');
			assert.equal(Zotero.CreatorTypes.getName(item.getCreators()[0].creatorTypeID), 'contributor');
			
			// Wait for no-op saveTx()
			yield Zotero.Promise.delay(1);
		});
		
		it("should accept 'now' for Accessed", async function () {
			var item = await createDataObject('item');
			
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			var textbox = itemBox.querySelector('[fieldname="accessDate"]');
			textbox.value = 'now';
			// Blur events don't necessarily trigger if window doesn't have focus
			itemBox.hideEditor(textbox);
			
			await waitForItemEvent('modify');
			
			assert.approximately(
				Zotero.Date.sqlToDate(item.getField('accessDate'), true).getTime(),
				Date.now(),
				5000
			);
		});

		it("should persist fieldMode after hiding a creator name editor", async function () {
			let item = new Zotero.Item('book');
			item.setCreators([
				{
					name: "First Last",
					creatorType: "author",
					fieldMode: 1
				}
			]);
			await item.saveTx();
			
			let itemBox = doc.getElementById('zotero-editpane-info-box');

			itemBox.querySelector('[fieldname="creator-0-lastName"]').click();
			itemBox.hideEditor(itemBox.querySelector('input[fieldname="creator-0-lastName"]'));
			
			assert.equal(
				itemBox.querySelector('[fieldname="creator-0-lastName"]').getAttribute('fieldMode'),
				'1'
			);
		});

		it("should add a new empty creator row on shift-Enter", async function () {
			var item = await createDataObject('item');
			item.setCreators([
				{
					lastName: "One",
					creatorType: "author"
				},
				{
					lastName: "Two",
					creatorType: "author"
				},
				{
					lastName: "Three",
					creatorType: "author"
				}
			]);
			let promise = waitForItemEvent('modify');
			item.saveTx();
			await promise;
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			let creatorLastName = itemBox.querySelector(".creator-type-value editable-text");
			creatorLastName.focus();
			// Dispatch shift-Enter event
			var shiftEnter = new KeyboardEvent('keydown', {
				key: "Enter",
				shiftKey: true,
				bubbles: true
			});
			creatorLastName.ref.dispatchEvent(shiftEnter);
			// Wait a moment for new row to be added
			await Zotero.Promise.delay();
			// Make sure an unsaved empty creator row is focused
			assert.exists(doc.activeElement.closest("[unsaved=true]"));
			// Make sure it is added after the existing row
			let { position } = itemBox.getCreatorFields(doc.activeElement.closest(".meta-row"));
			assert.equal(position, 1);
		});

		it("should do nothing on shift-Enter in an empty unsaved row", async function () {
			var item = await createDataObject('item');
			item.setCreators([
				{
					lastName: "One",
					creatorType: "author"
				}
			]);
			let promise = waitForItemEvent('modify');
			item.saveTx();
			await promise;
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			let creatorLastName = itemBox.querySelector(".creator-type-value editable-text");
			creatorLastName.focus();
			// Dispatch shift-Enter event
			var shiftEnter = new KeyboardEvent('keydown', {
				key: "Enter",
				shiftKey: true,
				bubbles: true
			});
			creatorLastName.ref.dispatchEvent(shiftEnter);
			// Wait a moment for new row to be added
			await Zotero.Promise.delay();
			// Make sure an unsaved empty creator row is focused
			assert.exists(doc.activeElement.closest("[unsaved=true]"));
			// Mark current creator input
			doc.activeElement.id = "test_creator_row";
			// Field with just space should be treated as empty
			doc.activeElement.value = " ";
			// Dispatch shift-Enter event again
			doc.activeElement.dispatchEvent(shiftEnter);
			// Make sure we're still on the same field
			await Zotero.Promise.delay();
			assert.equal(doc.activeElement.id, "test_creator_row");
		});

		it("should display all creators on shift-Enter on last visible creator", async function () {
			var item = await createDataObject('item');
			const creatorsCount = 10;
			let creatorsArr = [];
			let i = 0;
			// Add many creators so that some of them are not rendered
			while (i < creatorsCount) {
				i += 1;
				creatorsArr.push({ lastName: "Creator " + i, creatorType: "author" });
			}
			item.setCreators(creatorsArr);
			item.saveTx();
			await waitForItemEvent('modify');
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			let moreCreatorsLabel = itemBox.querySelector("#more-creators-label");
			let lastVisibleCreator = moreCreatorsLabel.closest(".meta-row").previousElementSibling;
			let lastVisibleCreatorsPosition = itemBox.getCreatorFields(lastVisibleCreator).position;
			// Dispatch shift-Enter on the last visible creator row
			let creatorLastName = lastVisibleCreator.querySelector("editable-text");
			creatorLastName.focus();
			var shiftEnter = new KeyboardEvent('keydown', {
				key: "Enter",
				shiftKey: true,
				bubbles: true
			});
			creatorLastName.ref.dispatchEvent(shiftEnter);
			await Zotero.Promise.delay();
			// Make sure a new creator row is focused
			assert.exists(doc.activeElement.closest("[unsaved=true]"));
			// Make sure it is located after the last focused row
			let { position } = itemBox.getCreatorFields(doc.activeElement.closest(".meta-row"));
			assert.equal(position, lastVisibleCreatorsPosition + 1);
			// Make sure all other creator rows were rendered
			let creators = [...itemBox.querySelectorAll(".creator-type-value")];
			assert.equal(creators.length, creatorsCount + 1);
		});

		it("should not delete invisible creators on Escape on unsaved creator", async function () {
			var item = await createDataObject('item');
			const creatorsCount = 10;
			let creatorsArr = [];
			let i = 0;
			// Add many creators so that some of them are not rendered
			while (i < creatorsCount) {
				i += 1;
				creatorsArr.push({ lastName: "Creator " + i, creatorType: "author" });
			}
			item.setCreators(creatorsArr);
			item.saveTx();
			await waitForItemEvent('modify');
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			// Add a new empty creator row
			itemBox.querySelector(".zotero-clicky-plus").click();
			await Zotero.Promise.delay();
			assert.exists(doc.activeElement.closest("[unsaved=true]"));
			// Press Escape
			var escape = new KeyboardEvent('keydown', {
				key: "Escape",
				bubbles: true
			});
			doc.activeElement.dispatchEvent(escape);
			await Zotero.Promise.delay();
			// Make sure the creator count has not changed and "More creators" label is still there
			let creators = [...itemBox.querySelectorAll(".creator-type-value")];
			assert.exists(itemBox.querySelector("#more-creators-label"));
			assert.equal(creators.length, itemBox._initialVisibleCreators);
			assert.equal(item.numCreators(), creatorsCount);
		});

		it("should switch creator type and update pref", async function () {
			let item = await createDataObject('item');
			item.setCreators([
				{
					name: "First Last",
					creatorType: "author",
					fieldMode: 1
				}
			]);
			// Begin with 'single' creator mode
			Zotero.Prefs.set('lastCreatorFieldMode', 1);
			let modifyPromise = waitForItemEvent('modify');
			item.saveTx();
			await modifyPromise;
			var itemBox = doc.getElementById('zotero-editpane-info-box');
			// Click on the button to switch type to dual
			let switchTypeBtn = itemBox.querySelector(".zotero-clicky-switch-type");
			assert.equal(switchTypeBtn.getAttribute("type"), "single");
			modifyPromise = waitForItemEvent('modify');
			switchTypeBtn.click();
			await modifyPromise;
			// Make sure the button was updated and the names are displayed in two separate fields
			switchTypeBtn = itemBox.querySelector(".zotero-clicky-switch-type");
			assert.equal(switchTypeBtn.getAttribute("type"), "dual");
			let [lastName, firstName] = [...itemBox.querySelectorAll(".creator-name-box editable-text")];
			assert.equal(lastName.value, "Last");
			assert.equal(firstName.value, "First");

			assert.equal(Zotero.Prefs.get('lastCreatorFieldMode'), '0');

			// Make sure if a new row is added, it is of type dual
			itemBox.querySelector(".zotero-clicky-plus").click();
			await Zotero.Promise.delay();
			let newCreatorRow = doc.activeElement.closest(".meta-row");
			let fieldMode = newCreatorRow.querySelector("editable-text").getAttribute("fieldMode");
			assert.equal(fieldMode, "0");
		});

		it("should save updated title when switching between items", async function () {
			let itemOne = new Zotero.Item('book');
			let itemTwo = new Zotero.Item('book');
			itemOne.setField('title', 'Title_one');
			await itemOne.saveTx();
			await itemTwo.saveTx();
			await ZoteroPane.selectItem(itemOne.id);

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let infoBox = itemDetails.getPane("info");

			let titleField = infoBox.querySelector("#itembox-field-value-title");
			titleField.focus();
			titleField.value = "Updated title";
			await ZoteroPane.selectItem(itemTwo.id);
			await waitForNotifierEvent('modify', 'item');
			assert.equal(itemOne.getDisplayTitle(), "Updated title");
		});

		it("should retain unsaved value between refreshes", async function () {
			let itemOne = new Zotero.Item('book');
			await ZoteroPane.selectItem(itemOne.id);

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let infoBox = itemDetails.getPane("info");

			// Type something into the series field without saving it
			let seriesField = infoBox.querySelector("#itembox-field-value-series");
			seriesField.focus();
			seriesField.value = "Series name";
			
			// Trigger a refresh
			infoBox._renderInternal();
			await waitForFrame();

			// Ensure the field is still focused AND has the yet-unsaved text
			assert.equal(doc.activeElement.parentNode.id, "itembox-field-value-series");
			assert.equal(doc.activeElement.value, "Series name");
		});

		it("should not loose focus on Tab from invalid DOI", async function () {
			var item = new Zotero.Item('journalArticle');
			item.setField('DOI', '10.3390/fluids10110300');
			await item.saveTx();
			await ZoteroPane.selectItem(item.id);

			var itemBox = doc.getElementById('zotero-editpane-info-box');

			// Focus the valid DOI field and tab from it
			let doiField = itemBox.querySelector('#itembox-field-value-DOI');
			doiField.focus();
			assert.isTrue(doiField.contains(doc.activeElement));

			Services.focus.moveFocus(win, doc.activeElement, Services.focus.MOVEFOCUS_FORWARD, 0);
			await waitForItemEvent('modify');

			// The open-link button for DOI should be focused
			assert.equal(doc.activeElement.id, 'itembox-field-DOI-link');

			// Now set DOI to an invalid value and tab from it again
			doiField.focus();
			doiField.value = '123';

			Services.focus.moveFocus(win, doc.activeElement, Services.focus.MOVEFOCUS_FORWARD, 0);
			await waitForItemEvent('modify')

			// Focus should land on the citation key field
			let citationKeyField = itemBox.querySelector('#itembox-field-value-citationKey');
			assert.isTrue(citationKeyField.contains(doc.activeElement));
		});
	});

	describe("Libraries and collections pane", function () {
		var item, collectionParent, collectionChild, section;

		// Fresh setup of an item belonging to 2 collections - parent and child - for each test
		beforeEach(async function () {
			collectionParent = await createDataObject('collection');
			collectionChild = await createDataObject('collection', { parentID: collectionParent.id });
			item = await createDataObject('item', { collections: [collectionParent.id, collectionChild.id] });
			await ZoteroPane.selectItem(item.id);
			section = ZoteroPane.itemPane._itemDetails.getPane("libraries-collections");
		});
		
		it("should update collection's name after rename", async function () {
			collectionChild.name = "Updated collection name";
			collectionChild.saveTx();

			await waitForNotifierEvent('modify', 'collection');

			let collectionRow = section.querySelector(`.row[data-id="C${collectionChild.id}"]`);
			assert.equal(collectionRow.innerText, collectionChild.name);
		});

		it("should remove collection that has been trashed", async function () {
			collectionChild.deleted = true;
			collectionChild.saveTx();

			await waitForNotifierEvent('trash', 'collection');

			let rowIDs = [...section.querySelectorAll(".row")].map(node => node.dataset.id);
			assert.deepEqual(rowIDs, [`L${item.libraryID}`, `C${collectionParent.id}`]);
		});

		it("should bring back collection restored from trash", async function () {
			collectionChild.deleted = true;
			collectionChild.saveTx();

			await waitForNotifierEvent('trash', 'collection');

			// Make sure the collection is actually gone
			let rowIDs = [...section.querySelectorAll(".row")].map(node => node.dataset.id);
			assert.deepEqual(rowIDs, [`L${item.libraryID}`, `C${collectionParent.id}`]);

			// Restore the collection from trash
			collectionChild.deleted = false;
			collectionChild.saveTx();

			await waitForNotifierEvent('modify', 'collection');

			// The collection row should appear again
			rowIDs = [...section.querySelectorAll(".row")].map(node => node.dataset.id);
			assert.deepEqual(rowIDs, [`L${item.libraryID}`, `C${collectionParent.id}`, `C${collectionChild.id}`]);
		});
	});

	describe("Attachments pane", function () {
		let paneID = "attachments";

		beforeEach(function () {
			Zotero.Prefs.set("panes.attachments.open", true);
			Zotero.Prefs.set("showAttachmentPreview", true);
			Zotero_Tabs.select("zotero-pane");
			win.resizeTo(1000, 800);
		});

		afterEach(function () {
			// Ensure all previews are properly discarded and cleaned up
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);
			
			// Force cleanup of any pending operations and queued tasks
			if (attachmentsBox._preview) {
				attachmentsBox._preview._clearPendingTasks();
				attachmentsBox._preview.discard?.();
			}

			Zotero_Tabs.select("zotero-pane");
			Zotero_Tabs.closeAll();
		});

		after(function () {
			win.resizeTo(1000, 800);
		});

		it("should show attachments pane in library for regular item", async function () {
			// Regular item: show
			let attachmentsBox = ZoteroPane.itemPane._itemDetails.getPane(paneID);
			let item = new Zotero.Item('book');
			await item.saveTx();
			await ZoteroPane.selectItem(item.id);
			assert.isFalse(attachmentsBox.hidden);

			// Child attachment: hide
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			await ZoteroPane.selectItem(attachment.id);
			assert.isTrue(attachmentsBox.hidden);

			// Standalone attachment: hide
			let attachment1 = await importFileAttachment('test.pdf');
			await ZoteroPane.selectItem(attachment1.id);
			assert.isTrue(attachmentsBox.hidden);
		});

		it("should not show attachments pane preview in reader best-matched attachment item", async function () {
			let item = new Zotero.Item('book');
			let file = getTestDataDirectory();
			file.append('test.pdf');
			await item.saveTx();
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			await ZoteroPane.viewItems([attachment]);
			let tabID = Zotero_Tabs.selectedID;
			ZoteroContextPane.splitter.setAttribute("state", "open");
			let itemDetails = ZoteroContextPane.context._getItemContext(tabID);
			let attachmentsBox = itemDetails.getPane(paneID);
			assert.isFalse(attachmentsBox.hidden);

			await waitForScrollToPane(itemDetails, paneID);
			
			assert.isFalse(await isPreviewDisplayed(attachmentsBox));
		});

		it("should not show attachments pane in reader standalone attachment item", async function () {
			let attachment = await importFileAttachment('test.pdf');
			await ZoteroPane.viewItems([attachment]);
			let tabID = Zotero_Tabs.selectedID;
			let itemDetails = ZoteroContextPane.context._getItemContext(tabID);
			let attachmentsBox = itemDetails.getPane(paneID);
			assert.isTrue(attachmentsBox.hidden);
		});

		it("should show attachments pane preview in reader non-best-matched attachment item", async function () {
			let item = new Zotero.Item('book');
			let file = getTestDataDirectory();
			file.append('test.pdf');
			await item.saveTx();
			await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});

			let bestAttachments = await item.getBestAttachments();
			await ZoteroPane.viewItems([bestAttachments[1]]);
			// Ensure context pane is open
			ZoteroContextPane.splitter.setAttribute("state", "open");
			await waitForFrame();
			let tabID = Zotero_Tabs.selectedID;
			let itemDetails = ZoteroContextPane.context._getItemContext(tabID);
			let attachmentsBox = itemDetails.getPane(paneID);
			assert.isFalse(attachmentsBox.hidden);

			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(attachmentsBox);
			assert.isTrue(await isPreviewDisplayed(attachmentsBox));
		});

		it("should not render attachments pane preview when show preview is disabled", async function () {
			Zotero.Prefs.set("showAttachmentPreview", false);

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);
			let item = new Zotero.Item('book');
			await item.saveTx();
			await ZoteroPane.selectItem(item.id);
			assert.isFalse(attachmentsBox.hidden);

			await waitForScrollToPane(itemDetails, paneID);

			assert.isFalse(await isPreviewDisplayed(attachmentsBox));
		});

		it("should only render after attachments pane becomes visible", async function () {
			// Resize to very small height to ensure the attachment box is not in view
			let height = doc.documentElement.clientHeight;
			win.resizeTo(null, 100);

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);
			let preview = attachmentsBox.previewElem;
			// Force discard previous preview
			await preview.discard(true);
			
			let item = new Zotero.Item('book');
			await item.saveTx();
			let file = getTestDataDirectory();
			file.append('test.pdf');
			await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});

			await ZoteroPane.selectItem(item.id);
			assert.isFalse(itemDetails.isPaneVisible(paneID));
			// Do not use _isAlreadyRendered, since that changes the render flag state
			assert.equal(attachmentsBox._syncRenderItemID, item.id);
			assert.notEqual(attachmentsBox._asyncRenderItemID, item.id);
			assert.isFalse(await isPreviewDisplayed(attachmentsBox));

			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(attachmentsBox);
			// TEMP: wait for a bit to ensure the preview is rendered?
			await Zotero.Promise.delay(100);
			assert.isTrue(itemDetails.isPaneVisible(paneID));
			assert.equal(attachmentsBox._syncRenderItemID, item.id);
			assert.equal(attachmentsBox._asyncRenderItemID, item.id);

			assert.isTrue(await isPreviewDisplayed(attachmentsBox));
			assert.isTrue(preview.hasPreview);
			win.resizeTo(null, height);
		});

		it("should update attachments pane when attachments changed", async function () {
			// https://forums.zotero.org/discussion/113632/zotero-7-beta-pdf-attachment-preview-and-annotations-not-refreshed-after-adding-annotations

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);
			let preview = attachmentsBox.previewElem;
			// Force discard previous preview
			await preview.discard(true);

			// Pin the pane to ensure it's rendered
			itemDetails.pinnedPane = paneID;

			let item = new Zotero.Item('book');
			await item.saveTx();

			await ZoteroPane.selectItem(item.id);
			assert.isTrue(await waitForPreviewBoxRender(attachmentsBox));
			// No preview
			assert.isFalse(await isPreviewDisplayed(attachmentsBox));
			// No row
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 0);

			// Add an attachment
			let file = getTestDataDirectory();
			file.append('test.png');
			let _attachment1 = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			await ZoteroPane.selectItem(item.id);
			await itemDetails._renderPromise;
			await waitForPreviewBoxRender(attachmentsBox);
			// Image preview for item with image attachment
			assert.isTrue(await isPreviewDisplayed(attachmentsBox));
			assert.equal(preview.previewType, "image");
			// 1 row
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 1);

			// Add an PDF attachment, which will be best match and update the preview
			file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment2 = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			await waitForPreviewBoxReader(attachmentsBox, attachment2.id);
			await Zotero.Promise.delay(100);
			// PDF preview
			assert.isTrue(await isPreviewDisplayed(attachmentsBox));
			assert.equal(preview.previewType, "pdf");
			// 2 rows
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 2);
			// Simulate an extra 'add' event on the attachment - still 2 rows
			attachmentsBox.notify('add', 'item', [attachment2.id]);
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 2);

			// Created annotations should be update in preview and attachment row
			let annotation = await createAnnotation('highlight', attachment2);
			await Zotero.Promise.delay(100);
			// Annotation updated in preview reader
			let readerAnnotation
				= preview._reader._internalReader._annotationManager._annotations.find(
					a => a.libraryID === annotation.libraryID && a.id === annotation.key
				);
			assert.exists(readerAnnotation);

			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 2);
			let attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment2.id}"]`);
			assert.isFalse(attachmentRow._annotationButton.hidden);
			// 1 annotation
			assert.equal(attachmentRow._annotationButton.querySelector('.label').textContent, "1");

			// Deleted annotations should be removed from preview and attachment row
			await annotation.eraseTx();
			await Zotero.Promise.delay(100);
			// Annotation removed from preview reader
			readerAnnotation
				= preview._reader._internalReader._annotationManager._annotations.find(
					a => a.libraryID === annotation.libraryID && a.id === annotation.key
				);
			assert.notExists(readerAnnotation);
			// Row might be recreated
			attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment2.id}"]`);
			assert.isTrue(attachmentRow._annotationButton.hidden);
			// 0 annotation
			assert.equal(attachmentRow._annotationButton.querySelector('.label').textContent, "0");

			// Delete attachment
			await attachment2.eraseTx();
			await Zotero.Promise.delay(100);
			// Image preview for item with image attachment
			assert.isTrue(await isPreviewDisplayed(attachmentsBox));
			assert.equal(preview.previewType, "image");
			// 1 row
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 1);
			// The corresponding row should be removed
			attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment2.id}"]`);
			assert.notExists(attachmentRow);

			// Unpin
			itemDetails.pinnedPane = "";
			itemDetails._paneParent.scrollTo(0, 0);
		});

		it("should keep attachments pane preview status after switching tab", async function () {
			// https://forums.zotero.org/discussion/113658/zotero-7-beta-preview-appearing-in-the-item-pane-of-the-pdf-tab

			let item = new Zotero.Item('book');
			let file = getTestDataDirectory();
			file.append('test.pdf');
			await item.saveTx();
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});

			// Open reader
			await ZoteroPane.viewItems([attachment]);
			let tabID = Zotero_Tabs.selectedID;
			await Zotero.Reader.getByTabID(tabID)._waitForReader();
			// Ensure context pane is open
			ZoteroContextPane.splitter.setAttribute("state", "open");
			await waitForFrame();

			let itemDetails = ZoteroContextPane.context._getItemContext(tabID);
			let attachmentsBox = itemDetails.getPane(paneID);
			assert.isFalse(attachmentsBox.hidden);

			await waitForScrollToPane(itemDetails, paneID);
			assert.isFalse(await isPreviewDisplayed(attachmentsBox));

			// Select library tab
			Zotero_Tabs.select("zotero-pane");
			let libraryItemDetails = ZoteroPane.itemPane._itemDetails;
			let libraryAttachmentsBox = libraryItemDetails.getPane(paneID);
			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(libraryItemDetails, paneID);
			// Collapse section
			libraryAttachmentsBox.querySelector('collapsible-section > .head').click();
			await Zotero.Promise.delay(50);
			// Open section
			libraryAttachmentsBox.querySelector('collapsible-section > .head').click();
			await Zotero.Promise.delay(50);
			
			// Select reader tab
			Zotero_Tabs.select(tabID);

			// Make sure the preview status is not changed in reader
			assert.isFalse(await isPreviewDisplayed(attachmentsBox));
		});

		/**
		 * This test is essential to ensure the proper functioning of the sync/async rendering,
		 * scrolling handler, and pinning mechanism of ItemDetails.
		 * AttachmentsBox serves as a good example since it involves both sync and async rendering.
		 * If this test fails, it is not recommended to add timeouts as a quick fix.
		 */
		it("should keep attachments pane status after changing selection", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);
			let preview = attachmentsBox.previewElem;

			// Pin the pane to avoid always scrolling to the section
			itemDetails.pinnedPane = paneID;

			// item with attachment (1 annotation)
			let item1 = new Zotero.Item('book');
			await item1.saveTx();
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment1 = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item1.id
			});
			let annotation = await createAnnotation('highlight', attachment1);

			await itemDetails._renderPromise;
			await waitForPreviewBoxReader(attachmentsBox, attachment1.id);

			assert.isFalse(attachmentsBox.hidden);
			let readerAnnotation
				= preview._reader._internalReader._annotationManager._annotations.find(
					a => a.libraryID === annotation.libraryID && a.id === annotation.key
				);
			assert.exists(readerAnnotation);
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 1);
			let attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment1.id}"]`);
			assert.isFalse(attachmentRow._annotationButton.hidden);
			// 1 annotation
			assert.equal(attachmentRow._annotationButton.querySelector('.label').textContent, "1");

			// item with attachment (no annotation)
			let item2 = new Zotero.Item('book');
			await item2.saveTx();
			file = getTestDataDirectory();
			file.append('wonderland_short.pdf');
			let attachment2 = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item2.id
			});

			// Select item with attachment (no annotation)
			await itemDetails._renderPromise;
			await waitForPreviewBoxReader(attachmentsBox, attachment2.id);

			assert.isFalse(attachmentsBox.hidden);
			readerAnnotation
				= preview._reader._internalReader._annotationManager._annotations.find(
					a => a.libraryID === annotation.libraryID && a.id === annotation.key
				);
			assert.notExists(readerAnnotation);
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 1);
			attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment2.id}"]`);
			assert.isTrue(attachmentRow._annotationButton.hidden);
			// 0 annotation
			assert.equal(attachmentRow._annotationButton.querySelector('.label').textContent, "0");

			let item3 = new Zotero.Item('book');
			await item3.saveTx();

			// Select item without attachment
			await itemDetails._renderPromise;

			assert.isFalse(attachmentsBox.hidden);
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 0);

			// Again, select item with attachment (1 annotation)
			await ZoteroPane.selectItem(item1.id);
			await itemDetails._renderPromise;
			await waitForPreviewBoxReader(attachmentsBox, attachment1.id);

			assert.isFalse(attachmentsBox.hidden);
			readerAnnotation
				= preview._reader._internalReader._annotationManager._annotations.find(
					a => a.libraryID === annotation.libraryID && a.id === annotation.key
				);
			assert.exists(readerAnnotation);
			assert.equal(attachmentsBox.querySelectorAll("attachment-row").length, 1);
			attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment1.id}"]`);
			assert.isFalse(attachmentRow._annotationButton.hidden);
			// 1 annotation
			assert.equal(attachmentRow._annotationButton.querySelector('.label').textContent, "1");

			// Unpin
			itemDetails.pinnedPane = "";
			itemDetails._paneParent.scrollTo(0, 0);
		});

		it("should open attachment on clicking attachment row", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);

			let item = new Zotero.Item('book');
			await item.saveTx();
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});

			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(attachmentsBox);

			let attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment.id}"]`);
			attachmentRow._attachmentButton.click();
			await Zotero.Promise.delay(100);
			let reader = await Zotero.Reader.getByTabID(Zotero_Tabs.selectedID);
			// Should open attachment
			assert.equal(reader.itemID, attachment.id);
		});

		it("should select attachment on clicking annotation button of attachment row", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);

			let item = new Zotero.Item('book');
			await item.saveTx();
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			let _annotation = await createAnnotation('highlight', attachment);

			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(attachmentsBox);

			let attachmentRow = attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment.id}"]`);
			attachmentRow._annotationButton.click();
			await Zotero.Promise.delay(100);
			// Should select attachment
			assert.equal(ZoteroPane.getSelectedItems(true)[0], attachment.id);
		});

		it("should open attachment on double-clicking attachments pane preview", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);
			let preview = attachmentsBox.previewElem;

			let item = new Zotero.Item('book');
			await item.saveTx();
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});

			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(attachmentsBox);

			let event = new MouseEvent('dblclick', {
				bubbles: true,
				cancelable: true,
				view: window
			});
			preview.dispatchEvent(event);
			await Zotero.Promise.delay(100);
			let reader = await Zotero.Reader.getByTabID(Zotero_Tabs.selectedID);
			// Should open attachment
			assert.equal(reader.itemID, attachment.id);
		});

		it("should render preview robustly after making dense calls to render and discard", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);
			let preview = attachmentsBox.previewElem;

			// Pin the pane to avoid always scrolling to the section
			itemDetails.pinnedPane = paneID;

			// item with attachment
			let item1 = new Zotero.Item('book');
			await item1.saveTx();
			let file1 = getTestDataDirectory();
			file1.append('test.pdf');
			let attachment1 = await Zotero.Attachments.importFromFile({
				file: file1,
				parentItemID: item1.id
			});

			let item2 = new Zotero.Item('book');
			await item2.saveTx();
			let file2 = getTestDataDirectory();
			file2.append('test.pdf');
			let attachment2 = await Zotero.Attachments.importFromFile({
				file: file2,
				parentItemID: item2.id
			});

			let selectionMap = [item1.id, item2.id];
			// Repeat render/discard multiple times
			for (let i = 0; i < 10; i++) {
				await ZoteroPane.selectItem(selectionMap[i % 2]);

				// No await, since the render/discard may be triggered at any time in actual usage
				preview.discard();
				preview.render();
			}

			// Wait for the last render/discard task to finish
			await waitForCallback(() => !preview._isRendering && !preview._isDiscarding
				&& !preview._isProcessingTask && !preview._isWaitingForTask
				&& !preview._lastTask);

			// Should be able to render the correct preview
			await ZoteroPane.selectItem(item1.id);
			await waitForPreviewBoxReader(attachmentsBox, attachment1.id);
			assert.isTrue(await isPreviewDisplayed(attachmentsBox));

			await ZoteroPane.selectItem(item2.id);
			await waitForPreviewBoxReader(attachmentsBox, attachment2.id);
			assert.isTrue(await isPreviewDisplayed(attachmentsBox));

			itemDetails.pinnedPane = "";
			itemDetails._paneParent.scrollTo(0, 0);
		});

		it("should not load preview iframe before becoming visible", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);

			// Resize to very small height to ensure the attachment box is not in view
			let height = doc.documentElement.clientHeight;
			win.resizeTo(null, 100);

			let item = await createDataObject('item');
			await importFileAttachment('test.pdf', { parentID: item.id });

			await ZoteroPane.selectItem(item.id);

			itemDetails._paneParent.scrollTo(0, 0);

			// Remove any existing preview to ensure the test is valid
			attachmentsBox._preview?.remove();
			attachmentsBox._preview = null;

			assert.notExists(attachmentsBox._preview);
			assert.notExists(attachmentsBox.querySelector("#preview"));

			await waitForScrollToPane(itemDetails, paneID);
			await attachmentsBox._forceRenderAll();
			await waitForPreviewBoxRender(attachmentsBox);
			
			let preview = await getBoxPreview(attachmentsBox);
			assert.exists(preview);
			await preview._initPromise;

			win.resizeTo(null, height);
		});

		it("should discard attachments pane preview after becoming invisible", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);

			const discardTimeout = 50;

			// Temporarily set discard timeout for testing before any operations
			let currentDiscardTimeout = attachmentsBox._discardPreviewTimeout;
			attachmentsBox._discardPreviewTimeout = discardTimeout;

			// Resize to very small height to ensure the attachment box is not in view
			let height = doc.documentElement.clientHeight;
			win.resizeTo(null, 100);

			let item = await createDataObject('item');
			let attachment = await importFileAttachment('test.pdf', { parentID: item.id });

			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxReader(attachmentsBox, attachment.id);

			assert.isTrue(attachmentsBox._preview._isReaderInitialized);
			
			// Scroll the attachments pane out of view
			await waitForScrollToPane(itemDetails, 'info');

			// Wait for the intersection observer to trigger discard and the discard process to complete
			await waitForCallback(() => !attachmentsBox._preview._isReaderInitialized);

			assert.isFalse(attachmentsBox._preview._isReaderInitialized);

			win.resizeTo(null, height);
			attachmentsBox._discardPreviewTimeout = currentDiscardTimeout;
		});

		it("should update after attachment is trashed or restored", async function () {
			// https://github.com/zotero/zotero/issues/4770

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentsBox = itemDetails.getPane(paneID);

			let item = await createDataObject('item');
			let attachment = await importFileAttachment('test.pdf', { parentID: item.id });

			function getAttachmentRow() {
				return attachmentsBox.querySelector(`attachment-row[attachment-id="${attachment.id}"]`);
			}

			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(attachmentsBox);

			// Trash the attachment
			let trashPromise = waitForNotifierEvent('trash', 'item');
			await Zotero.Items.trashTx([attachment.id]);
			await trashPromise;

			// Wait for the attachment row to be hidden
			await waitForCallback(
				() => getAttachmentRow().hidden
				, 100, 3);
			assert.isTrue(getAttachmentRow().hidden);

			// Restore the attachment
			let restorePromise = waitForNotifierEvent('modify', 'item');
			attachment.deleted = false;
			await attachment.saveTx();
			await restorePromise;

			// Wait for the attachment row to exist and be visible
			await waitForCallback(
				() => getAttachmentRow()?.hidden === false
				, 100, 3);
			assert.exists(getAttachmentRow());
			assert.isFalse(getAttachmentRow().hidden);

			// Basically, our item pane render mechanism will reuse the previous render if the item
			// is the same. We want to ensure the attachments box is rerendered after
			// the attachments' trash/restore, even if it's already rendered with the same item.
			trashPromise = waitForNotifierEvent('trash', 'item');
			await Zotero.Items.trashTx([attachment.id]);
			await trashPromise;

			// Wait for the attachment row to be hidden
			await waitForCallback(
				() => getAttachmentRow().hidden
				, 100, 3);

			// Select another non-regular item to ensure the box is not updated by notifier events
			// At this point, the box still has the previous render with attachment row hidden
			let item2 = await createDataObject('item');
			let attachment2 = await importFileAttachment('test.pdf', { parentID: item2.id });
			await ZoteroPane.selectItem(attachment2.id);
			await waitForPreviewBoxRender(itemDetails.getPane("attachment-info"));

			// Restore the attachment
			restorePromise = waitForNotifierEvent('modify', 'item');
			attachment.deleted = false;
			await attachment.saveTx();
			await restorePromise;

			// Select the item with the restored attachment. A rerender should be triggered
			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(attachmentsBox);

			// Wait for the attachment row to exist and be visible
			await waitForCallback(
				() => {
					let row = getAttachmentRow();
					window.console.log(row);
					return row && !row.hidden;
				}
				, 100, 3);

			// Should render the attachment row, as the render dependency is different
			assert.exists(getAttachmentRow());
		});
	});
	
	
	describe("Notes pane", function () {
		it("should refresh on child note change", async function () {
			var item;
			var note1;
			var note2;
			await Zotero.DB.executeTransaction(async function () {
				item = createUnsavedDataObject('item');
				await item.save();
				
				note1 = new Zotero.Item('note');
				note1.parentID = item.id;
				note1.setNote('A');
				await note1.save();
				
				note2 = new Zotero.Item('note');
				note2.parentID = item.id;
				note2.setNote('B');
				await note2.save();
			});
			
			var body = doc.querySelector('#zotero-editpane-notes .body');
			// Wait for note list to update
			do {
				await Zotero.Promise.delay(1);
			}
			while (body.querySelectorAll('.row .label').length !== 2);
			
			// Update note text
			note2.setNote('C');
			await note2.saveTx();
			
			// Wait for note list to update
			do {
				await Zotero.Promise.delay(1);
			}
			while ([...body.querySelectorAll('.row .label')].every(label => label.textContent != 'C'));
		});
		
		it("should refresh on child note trash", async function () {
			var item;
			var note1;
			var note2;
			await Zotero.DB.executeTransaction(async function () {
				item = createUnsavedDataObject('item');
				await item.save();
				
				note1 = new Zotero.Item('note');
				note1.parentID = item.id;
				note1.setNote('A');
				await note1.save();
				
				note2 = new Zotero.Item('note');
				note2.parentID = item.id;
				note2.setNote('B');
				await note2.save();
			});

			var body = doc.querySelector('#zotero-editpane-notes .body');
			// Wait for note list to update
			do {
				await Zotero.Promise.delay(1);
			}
			while (body.querySelectorAll('.row .label').length !== 2);
			
			// Click "-" in first note
			var promise = waitForDialog();
			body.querySelector(".zotero-clicky-minus").click();
			await promise;
			
			// Wait for note list to update
			do {
				await Zotero.Promise.delay(1);
			}
			while (body.querySelectorAll('.row .label').length !== 1);
		});
		
		it("should refresh on child note delete", async function () {
			var item;
			var note1;
			var note2;
			await Zotero.DB.executeTransaction(async function () {
				item = createUnsavedDataObject('item');
				await item.save();
				
				note1 = new Zotero.Item('note');
				note1.parentID = item.id;
				note1.setNote('A');
				await note1.save();
				
				note2 = new Zotero.Item('note');
				note2.parentID = item.id;
				note2.setNote('B');
				await note2.save();
			});
			
			var body = doc.querySelector('#zotero-editpane-notes .body');
			// Wait for note list to update
			do {
				await Zotero.Promise.delay(1);
			}
			while (body.querySelectorAll('.row .label').length !== 2);
			
			await note2.eraseTx();
			
			// Wait for note list to update
			do {
				await Zotero.Promise.delay(1);
			}
			while (body.querySelectorAll('.row .label').length !== 1);
		});
	});
	
	
	describe("Attachment pane", function () {
		let paneID = "attachment-info";

		beforeEach(function () {
			Zotero.Prefs.set("panes.attachment-info.open", true);
			Zotero.Prefs.set("showAttachmentPreview", true);
			Zotero_Tabs.select("zotero-pane");
		});

		afterEach(function () {
			// Ensure all previews are properly discarded and cleaned up
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentBox = itemDetails.getPane(paneID);

			// Force cleanup of any pending operations and queued tasks
			if (attachmentBox._preview) {
				attachmentBox._preview._clearPendingTasks();
				attachmentBox._preview.discard?.();
			}

			Zotero_Tabs.select("zotero-pane");
			Zotero_Tabs.closeAll();
		});

		it("should refresh on file rename", async function () {
			let file = getTestDataDirectory();
			file.append('test.png');
			let item = await Zotero.Attachments.importFromFile({
				file: file
			});
			let newName = 'test2.png';

			let itemBox = doc.getElementById('zotero-attachment-box');
			let label = itemBox._id('fileName');
			let promise = waitForDOMAttributes(label, 'value', (newValue) => {
				return newValue === newName;
			});

			await item.renameAttachmentFile(newName);
			
			await promise;
			let box = ZoteroPane.itemPane._itemDetails.getPane(paneID);
			await waitForPreviewBoxRender(box, item.id);
			assert.equal(label.value, newName);
		});
		
		it("should update on attachment title change", async function () {
			let file = getTestDataDirectory();
			file.append('test.png');
			let item = await Zotero.Attachments.importFromFile({ file });
			let newTitle = 'New Title';

			let paneHeader = doc.getElementById('zotero-item-pane-header');
			let label = paneHeader.titleField;
			let promise = Promise.all([
				waitForDOMAttributes(label, 'value', (newValue) => {
					return newValue === newTitle;
				}),
				waitForItemEvent('modify')
			]);

			item.setField('title', newTitle);
			await item.saveTx();
			
			await promise;

			// Wait for section to finish rendering
			let box = ZoteroPane.itemPane._itemDetails.getPane(paneID);
			await waitForPreviewBoxRender(box, item.id);
			
			assert.equal(label.value, newTitle);
		});

		it("should show attachment pane in library for attachment item", async function () {
			// Regular item: hide
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let box = itemDetails.getPane(paneID);

			// TEMP: Force abort any pending renders
			box._preview?.remove();
			box._preview = null;

			let item = new Zotero.Item('book');
			await item.saveTx();
			await ZoteroPane.selectItem(item.id);
			await waitForScrollToPane(itemDetails, paneID);
			assert.isTrue(box.hidden);

			// Child attachment: show
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			await ZoteroPane.selectItem(attachment.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxReader(box, attachment.id);
			assert.isFalse(box.hidden);
			await Zotero.Promise.delay(100);
			assert.isTrue(await isPreviewDisplayed(box));

			// Standalone attachment: show
			let attachment1 = await importFileAttachment('test.pdf');
			await ZoteroPane.selectItem(attachment1.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxReader(box, attachment1.id);
			assert.isFalse(box.hidden);
			await Zotero.Promise.delay(100);
			assert.isTrue(await isPreviewDisplayed(box));
		});

		it("should show attachment pane without preview in reader for standalone attachment item", async function () {
			// Attachment item with parent item: hide
			let item = new Zotero.Item('book');
			let file = getTestDataDirectory();
			file.append('test.pdf');
			await item.saveTx();
			let attachment = await Zotero.Attachments.importFromFile({
				file,
				parentItemID: item.id
			});
			await ZoteroPane.viewItems([attachment]);
			let tabID = Zotero_Tabs.selectedID;
			let itemDetails = ZoteroContextPane.context._getItemContext(tabID);
			let box = itemDetails.getPane(paneID);
			assert.isTrue(box.hidden);

			// Standalone attachment item: show
			attachment = await importFileAttachment('test.pdf');
			await ZoteroPane.viewItems([attachment]);
			tabID = Zotero_Tabs.selectedID;
			itemDetails = ZoteroContextPane.context._getItemContext(tabID);
			box = itemDetails.getPane(paneID);
			assert.isFalse(box.hidden);

			await waitForScrollToPane(itemDetails, paneID);
			// No preview
			assert.isFalse(await isPreviewDisplayed(box));
		});

		it("should only show attachment note container when exists", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let box = itemDetails.getPane(paneID);
			let noteContainer = box._id("note-container");
			let noteEditor = box._id('attachment-note-editor');

			// Hide note container by default
			let attachment = await importFileAttachment('test.pdf');
			await ZoteroPane.selectItem(attachment.id);
			await itemDetails._renderPromise;
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxRender(box);
			assert.isTrue(noteContainer.hidden);

			// Add attachment note
			let itemModifyPromise = waitForItemEvent("modify");
			attachment.setNote("<h1>TEST</h1>");
			await attachment.saveTx();
			await itemModifyPromise;
			await waitForPreviewBoxRender(box);
			// Should show note container
			assert.isFalse(noteContainer.hidden);
			// Should be readonly
			assert.equal(noteEditor.mode, "view");
		});

		it("should discard attachment pane preview after becoming invisible", async function () {
			// TEMP: https://github.com/zotero/zotero/issues/5624
			if (Zotero.automatedTest) {
				this.skip();
				return;
			}
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentBox = itemDetails.getPane(paneID);

			const discardTimeout = 50;

			// Temporarily set discard timeout for testing before any operations
			let currentDiscardTimeout = attachmentBox._discardPreviewTimeout;
			attachmentBox._discardPreviewTimeout = discardTimeout;

			let attachment = await importFileAttachment('test.pdf');

			await ZoteroPane.selectItem(attachment.id);
			await waitForScrollToPane(itemDetails, paneID);
			await waitForPreviewBoxReader(attachmentBox, attachment.id);

			assert.isTrue(attachmentBox._preview._isReaderInitialized);
			
			// Scroll the attachments pane out of view
			await waitForScrollToPane(itemDetails, 'related');

			// Wait for the intersection observer to trigger discard and the discard process to complete
			await waitForCallback(() => !attachmentBox._preview?._isReaderInitialized);

			assert.isFalse(!!attachmentBox._preview?._isReaderInitialized);

			attachmentBox._discardPreviewTimeout = currentDiscardTimeout;
		});

		it("should not transfer focused title while switching between items", async function () {
			let item = new Zotero.Item('book');
			let attachmentOne = await importFileAttachment('test.pdf', { title: 'PDF_one', parentItemID: item.id });
			let attachmentTwo = await importFileAttachment('test.pdf', { title: 'PDF_two', parentItemID: item.id });
			await ZoteroPane.selectItem(attachmentOne.id);

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentBox = itemDetails.getPane(paneID);

			attachmentBox.querySelector("#title").focus();
			await ZoteroPane.selectItem(attachmentTwo.id);
			await waitForNotifierEvent('modify', 'item');
			assert.equal(attachmentTwo.getDisplayTitle(), "PDF_two");
		});

		it("should relate note and its attachment after being converted from embedded to standalone", async function () {
			let collection = await createDataObject('collection');
			let attachment = await importFileAttachment('test.pdf', { title: 'PDF_one' });
			attachment.setNote("Embedded test note");
			await attachment.saveTx();
			await ZoteroPane.selectItem(attachment.id);

			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let attachmentBox = itemDetails.getPane(paneID);

			await attachmentBox.convertAttachmentNote();
			// Ensure that the standalone note is recorded as a related item of the attachment
			let relatedItems = attachment.relatedItems.map(key => Zotero.Items.getByLibraryAndKey(attachment.libraryID, key));
			assert.lengthOf(relatedItems, 1);
			// Ensure that the note has the correct content
			let note = relatedItems[0];
			assert.isTrue(note.isNote());
			assert.equal(note.getNote(), "Embedded test note");
			// The note should be added to the same collection(s) as the attachment
			assert.sameMembers(attachment.getCollections(), note.getCollections());
		});
	});


	describe("File renaming", function () {
		before(function () {
			Zotero.Prefs.set("panes.attachment-info.open", true);
		});

		it("should hide the rename from parent button if already renamed", async function () {
			let item = await createDataObject('item', { title: 'Lorem Ipsum' });
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let attachment = await Zotero.Attachments.importFromFile({
				file: file,
				fileBaseName: "Lorem Ipsum", // Simulate auto-renaming, normally code would call getRenamedFileBaseNameIfAllowedType to generate fileBaseName
				parentItemID: item.id
			});

			let zp = win.ZoteroPane;
			await zp.selectItems([attachment.id]);

			let itemBox = doc.getElementById('zotero-attachment-box');
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			await zp.selectItems([attachment.id]);
			await itemDetails._renderPromise;

			let label = itemBox._id('fileName');
			let button = itemBox._id('rename-from-parent');

			// File is auto-renamed during import, button should be hidden
			assert.isTrue(button.hidden);
			assert.equal(label.value, "Lorem Ipsum.pdf");

			await attachment.eraseTx();
			await item.eraseTx();
		});

		it("should hide the rename from parent button, after file was renamed", async function () {
			let item = await createDataObject('item', { title: 'Lorem Ipsum' });
			let file = getTestDataDirectory();
			file.append('test.txt');
			let attachment = await Zotero.Attachments.importFromFile({
				file: file,
				parentItemID: item.id
			});

			let zp = win.ZoteroPane;
			let itemBox = doc.getElementById('zotero-attachment-box');
			let label = itemBox._id('fileName');
			let button = itemBox._id('rename-from-parent');
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			await zp.selectItems([attachment.id]);
			await itemDetails._renderPromise;
			assert.isFalse(button.hidden);

			button.click();
			assert.equal(await waitForItemEvent('modify'), attachment.id);
			assert.equal(await waitForItemEvent('modify'), attachment.id);

			assert.isTrue(button.hidden);
			assert.equal(label.value, "Lorem Ipsum.txt");

			await attachment.eraseTx();
			await item.eraseTx();
		});

		it("should hide the rename from parent button for top-level items", async function () {
			let file = getTestDataDirectory();
			file.append('test.pdf');
			let topLevelAttachment = await Zotero.Attachments.importFromFile({
				file: file,
			});

			let zp = win.ZoteroPane;
			let itemBox = doc.getElementById('zotero-attachment-box');
			let button = itemBox._id('rename-from-parent');
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			await zp.selectItems([topLevelAttachment.id]);
			await itemDetails._renderPromise;

			assert.isTrue(button.hidden);
			await topLevelAttachment.eraseTx();
		});

		it("should show rename-from-parent button after parent metadata changes", async function () {
			// Disable auto-rename so that changing parent metadata does not auto-rename the file
			let origAutoRename = Zotero.Prefs.get('autoRenameFiles.onMetadataChange');
			Zotero.Prefs.set('autoRenameFiles.onMetadataChange', false);

			try {
				// Create an item and an attachment whose filename already matches the template
				let item = await createDataObject('item', { title: 'Lorem Ipsum' });
				let file = getTestDataDirectory();
				file.append('test.pdf');
				let attachment = await Zotero.Attachments.importFromFile({
					file: file,
					fileBaseName: "Lorem Ipsum",
					parentItemID: item.id
				});

				let zp = win.ZoteroPane;
				let itemBox = doc.getElementById('zotero-attachment-box');
				let button = itemBox._id('rename-from-parent');
				let itemDetails = ZoteroPane.itemPane._itemDetails;

				// Select the attachment -- button should be hidden since filename matches
				await zp.selectItems([attachment.id]);
				await itemDetails._renderPromise;
				assert.isTrue(button.hidden, "button should be hidden when filename matches parent");

				// Select the parent item and change its title without saving
				await zp.selectItems([item.id]);
				await itemDetails._renderPromise;
				item.setField('title', 'Changed Title');

				// Switch back to the attachment before parent save completes.
				// This simulates the race between blur-triggered saveTx()
				// and the item details pane rendering for the newly selected attachment.
				await zp.selectItems([attachment.id]);
				await itemDetails._renderPromise;

				// Now save the parent -- the notify will fire after the attachment box
				// has already rendered (and skipped re-render because deps matched cache)
				await item.saveTx();
				// Wait for the notifier-triggered async updateInfo() to complete
				await waitForCallback(() => !button.hidden);

				// The button should now be visible since the filename no longer matches
				assert.isFalse(button.hidden, "button should be visible after parent title changed");

				await attachment.eraseTx();
				await item.eraseTx();
			}
			finally {
				Zotero.Prefs.set('autoRenameFiles.onMetadataChange', origAutoRename);
			}
		});
	});


	describe("Note editor", function () {
		it("should refresh on note update", async function () {
			var item = new Zotero.Item('note');
			var id = await item.saveTx();
			
			var noteEditor = doc.getElementById('zotero-note-editor');
			
			// Wait for the editor if it has not been initialized yet
			if (!noteEditor.item) {
				await new Zotero.Promise((resolve, reject) => {
					noteEditor.onInit(() => resolve());
				});
				assert.equal(noteEditor._editorInstance._iframeWindow.wrappedJSObject.getDataSync(), null);
			}

			item.setNote('<p>Test</p>');
			await item.saveTx();
			
			// Wait for asynchronous editor update
			do {
				await Zotero.Promise.delay(10);
			} while (
				!/<div data-schema-version=".*"><p>Test<\/p><\/div>/.test(
					noteEditor._editorInstance._iframeWindow.wrappedJSObject.getDataSync().html.replace(/\n/g, '')
				)
			);
		});
	});
	
	describe("Feed buttons", function () {
		describe("Mark as Read/Unread", function () {
			it("should change an item from unread to read", async function () {
				var feed = await createFeed();
				await select(win, feed);
				
				var item = await createDataObject('feedItem', { libraryID: feed.libraryID });
				
				// Skip timed mark-as-read
				var stub = sinon.stub(win.ZoteroPane, 'startItemReadTimeout');
				await select(win, item);
				
				// Click "Mark as Read"
				var promise = waitForItemEvent('modify');
				var button = ZoteroPane.itemPane.getCurrentPane().querySelector('.feed-item-toggleRead-button');
				assert.equal(button.label, Zotero.getString('pane.item.markAsRead'));
				assert.isFalse(item.isRead);
				button.click();
				var ids = await promise;
				
				assert.sameMembers(ids, [item.id]);
				assert.isTrue(item.isRead);
				// Button is re-created
				button = ZoteroPane.itemPane.getCurrentPane().querySelector('.feed-item-toggleRead-button');
				assert.equal(button.label, Zotero.getString('pane.item.markAsUnread'));
				
				stub.restore();
			});
			
			
			it("should update label when state of an item changes", async function () {
				let feed = await createFeed();
				await selectLibrary(win, feed.libraryID);
				await waitForItemsLoad(win);
				
				var stub = sinon.stub(win.ZoteroPane, 'startItemReadTimeout');
				var item = await createDataObject('feedItem', { libraryID: feed.libraryID });
				// Skip timed mark-as-read
				assert.ok(stub.called);
				stub.restore();
				item.isRead = true;
				await item.saveTx();
				
				let button = ZoteroPane.itemPane.getCurrentPane().querySelector('.feed-item-toggleRead-button');
				
				assert.equal(button.label, Zotero.getString('pane.item.markAsUnread'));
				await item.toggleRead(false);
				// Button is re-created
				button = ZoteroPane.itemPane.getCurrentPane().querySelector('.feed-item-toggleRead-button');
				assert.equal(button.label, Zotero.getString('pane.item.markAsRead'));
			});
		});
	});
	
	describe("Duplicates Merge pane", function () {
		// Same as test in itemsTest, but via UI, which makes a copy via toJSON()/fromJSON()
		it("should transfer merge-tracking relations when merging two pairs into one item", async function () {
			var item1 = await createDataObject('item', { title: 'A' });
			var item2 = await createDataObject('item', { title: 'B' });
			var item3 = await createDataObject('item', { title: 'C' });
			var item4 = await createDataObject('item', { title: 'D' });
			
			var uris = [item2, item3, item4].map(item => Zotero.URI.getItemURI(item));
			
			var p;
			
			var zp = win.ZoteroPane;
			await zp.selectItems([item1.id, item2.id]);
			zp.mergeSelectedItems();
			p = waitForItemEvent('modify');
			doc.getElementById('zotero-duplicates-merge-button').click();
			await p;
			
			assert.sameMembers(
				item1.getRelations()[Zotero.Relations.replacedItemPredicate],
				[uris[0]]
			);
			
			await zp.selectItems([item3.id, item4.id]);
			zp.mergeSelectedItems();
			p = waitForItemEvent('modify');
			doc.getElementById('zotero-duplicates-merge-button').click();
			await p;
			
			assert.sameMembers(
				item3.getRelations()[Zotero.Relations.replacedItemPredicate],
				[uris[2]]
			);
			
			await zp.selectItems([item1.id, item3.id]);
			zp.mergeSelectedItems();
			p = waitForItemEvent('modify');
			doc.getElementById('zotero-duplicates-merge-button').click();
			await p;
			
			// Remaining item should include all other URIs
			assert.sameMembers(
				item1.getRelations()[Zotero.Relations.replacedItemPredicate],
				uris
			);
		});
	});

	describe("Item pane and tabs", function () {
		it("should switch to the correct pane when switching tabs", async function () {
			// https://github.com/zotero/zotero/issues/4531#issuecomment-2470874876
			let attachment = await importFileAttachment('test.pdf');
			Zotero_Tabs.closeAll();
			Zotero_Tabs.add({
				type: 'reader-unloaded',
				title: "Reader",
				index: 1,
				data: {
					itemID: attachment.id
				},
			});
			Zotero_Tabs.jump(1);
			Zotero_Tabs.jump(0);
			await Zotero.Promise.delay(100);
			// Should not show the context pane for the reader tab
			assert.isTrue(ZoteroContextPane.splitter.hidden);
		});
	});

	describe("Libraries pane", function () {
		let paneID = "libraries-collections";

		beforeEach(function () {
			Zotero.Prefs.set("panes.libraries-collections.open", true);
			Zotero_Tabs.select("zotero-pane");
		});

		afterEach(function () {
			Zotero_Tabs.select("zotero-pane");
			Zotero_Tabs.closeAll();
		});

		it("should scroll to pinned pane after selection moves from note to item", async function () {
			let itemDetails = ZoteroPane.itemPane._itemDetails;
			let pane = itemDetails.getPane(paneID);

			let item = await createDataObject('item');
			await importPDFAttachment(item);

			let note = await createDataObject('item', { itemType: 'note' });

			await select(win, item);
			await waitForScrollToPane(itemDetails, paneID);

			itemDetails.pinnedPane = paneID;

			await select(win, note);

			await Zotero.Promise.delay(10);

			await select(win, item);
			await waitForScrollToPane(itemDetails, paneID);

			// Should scroll to pinned pane
			assert.isTrue(
				Math.abs(pane.getBoundingClientRect().top - pane.parentElement.getBoundingClientRect().top) < 3
			);

			itemDetails.pinnedPane = "";
			itemDetails._paneParent.scrollTo(0, 0);
		});
	});

	describe("Sidenav", function () {
		async function waitForSidenav() {
			await waitForCallback(() => {
				return !!ZoteroPane.itemPane._itemDetails.sidenav?._initialized;
			});
		}

		async function waitForSidenavActive() {
			await waitForCallback(() => {
				return !ZoteroPane.itemPane._itemDetails.sidenav._defaultStatus;
			});
		}

		function compareOrder(order, targetOrder) {
			let lastIndex = -1;
			for (let paneID of order) {
				let index = targetOrder.indexOf(paneID);
				if (index === -1) {
					continue;
				}
				if (index < lastIndex) {
					return false;
				}
				lastIndex = index;
			}
			return true;
		}

		function compareButtonOrder(order) {
			let wrappers = ZoteroPane.itemPane._itemDetails.sidenav._enabledWrappers;
			let buttonOrder = wrappers.map(wrapper => wrapper.querySelector('.btn').dataset.pane);
			return compareOrder(buttonOrder, order)
		}

		function compareSectionOrder(order) {
			let sections = ZoteroPane.itemPane._itemDetails.getEnabledPanes();
			let sectionOrder = sections.map(section => section.dataset.pane);
			return compareOrder(sectionOrder, order)
		}

		function getSidenavOrder() {
			return Zotero.Prefs.get('sidenav.order') || ZoteroPane.itemPane._itemDetails.sidenav._builtInPanes.join(',');
		}

		async function clickSidenavMenu(paneIdx, menuSelector) {
			let sidenav = ZoteroPane.itemPane._itemDetails.sidenav;
			if (paneIdx < 0) {
				paneIdx = sidenav._enabledWrappers.length + paneIdx;
			}
			let btn = sidenav._enabledWrappers[paneIdx].querySelector('.btn');
			let btnRect = btn.getBoundingClientRect();
			let popup = sidenav.querySelector('.context-menu');
			let promise = waitForDOMEvent(popup, 'popupshown');
			sidenav.handleButtonContextMenu({
				target: btn,
				preventDefault: function () {},
				screenX: btnRect.left,
				screenY: btnRect.top,
			});
			await promise;
			let menu = popup.querySelector(menuSelector);
			if (!menu || menu.hidden) {
				popup.hidePopup();
				return false;
			}
			menu.click();
			popup.hidePopup();
			return true;
		}

		it("should reorder section when prefs change", async function () {
			await waitForSidenav();

			let orderRaw = getSidenavOrder();
			let order = orderRaw.split(',');
			let newOrder = order.reverse()
			let newOrderRaw = newOrder.join(',');
			Zotero.Prefs.set('sidenav.order', newOrderRaw);

			// If the order is not updated, a timeout exception will be thrown to fail the test
			await waitForCallback(() => {
				return compareSectionOrder(newOrder) && compareButtonOrder(newOrder);
			}
			, 100, 3);
		});

		it("should move section up", async function () {
			await waitForSidenav();

			// Create an item so that the sidenav is active
			let item = await createDataObject('item');
			await ZoteroPane.selectItem(item.id);

			await waitForSidenavActive();

			let orderRaw = getSidenavOrder();
			let order = orderRaw.split(',');

			let promise = waitForPrefsChange('sidenav.order');
			let menuEnabled = await clickSidenavMenu(1, '.zotero-menuitem-reorder-up');
			assert.isTrue(menuEnabled);
			await promise;

			let newOrderRaw = getSidenavOrder();

			let newOrder = newOrderRaw.split(',');
			let expectedOrder = [...order];
			// Exchange 0 and 1
			let temp = expectedOrder[0];
			expectedOrder[0] = expectedOrder[1];
			expectedOrder[1] = temp;
			assert.deepEqual(newOrder, expectedOrder);

			// Remove the temp item
			await Zotero.Items.erase(item.id);
		});

		it("should move section down", async function () {
			await waitForSidenav();

			// Create an item so that the sidenav is active
			let item = await createDataObject('item');
			await ZoteroPane.selectItem(item.id);

			await waitForSidenavActive();

			let orderRaw = getSidenavOrder();
			let order = orderRaw.split(',');
			let promise = waitForPrefsChange('sidenav.order');
			let menuEnabled = await clickSidenavMenu(0, '.zotero-menuitem-reorder-down');
			assert.isTrue(menuEnabled);
			await promise;

			let newOrderRaw = getSidenavOrder();
			
			let newOrder = newOrderRaw.split(',');
			let expectedOrder = [...order];
			// Exchange 0 and 1
			let temp = expectedOrder[0];
			expectedOrder[0] = expectedOrder[1];
			expectedOrder[1] = temp;
			assert.deepEqual(newOrder, expectedOrder);

			// Remove the temp item
			await Zotero.Items.erase(item.id);
		});

		it("should not show move up menu for first section", async function () {
			await waitForSidenav();

			// Create an item so that the sidenav is active
			let item = await createDataObject('item');
			await ZoteroPane.selectItem(item.id);

			await waitForSidenavActive();

			let menuEnabled = await clickSidenavMenu(0, '.zotero-menuitem-reorder-up');
			assert.isFalse(menuEnabled);

			await Zotero.Items.erase(item.id);
		});

		it("should not show move down menu for last section", async function () {
			await waitForSidenav();

			// Create an item so that the sidenav is active
			let item = await createDataObject('item');
			await ZoteroPane.selectItem(item.id);

			await waitForSidenavActive();

			let menuEnabled = await clickSidenavMenu(-1, '.zotero-menuitem-reorder-down');
			assert.isFalse(menuEnabled);

			await Zotero.Items.erase(item.id);
		});

		it("should unpin section if it moves to the top", async function () {
			await waitForSidenav();

			// Create an item so that the sidenav is active
			let item = await createDataObject('item');
			await ZoteroPane.selectItem(item.id);

			await waitForSidenavActive();

			let orderRaw = getSidenavOrder();
			let order = orderRaw.split(',');

			// Pin the second section
			ZoteroPane.itemPane._itemDetails.pinnedPane = order[1];

			let promise = waitForPrefsChange('sidenav.order');
			let menuEnabled = await clickSidenavMenu(1, '.zotero-menuitem-reorder-up');
			assert.isTrue(menuEnabled);
			await promise;
			
			assert.isEmpty(ZoteroPane.itemPane._itemDetails.pinnedPane);

			await Zotero.Items.erase(item.id);
		});

		it("should not show reorder menu for custom section with orderable disabled", async function () {
			await waitForSidenav();

			const registeredID = Zotero.ItemPaneManager.registerSection({
				paneID: "custom-section-example",
				pluginID: "example@example.com",
				header: {
					l10nID: "example-item-pane-header",
					icon: "chrome://zotero/skin/16/universal/note.svg",
				},
				sidenav: {
					l10nID: "example-item-pane-header",
					icon: "chrome://zotero/skin/20/universal/note.svg",
					// Disable orderable
					orderable: false,
				},
				onRender: ({ body }) => {
					body.textContent = "Custom section";
				},
			});

			// Create an item so that the sidenav is active
			let item = await createDataObject('item');
			await ZoteroPane.selectItem(item.id);

			await waitForSidenavActive();

			let menuUpEnabled = await clickSidenavMenu(-1, '.zotero-menuitem-reorder-up');
			assert.isFalse(menuUpEnabled);
			let menuDownEnabled = await clickSidenavMenu(-1, '.zotero-menuitem-reorder-down');
			assert.isFalse(menuDownEnabled);

			await Zotero.Items.erase(item.id);
			Zotero.ItemPaneManager.unregisterSection(registeredID);
		});
	});

	describe("AnnotationItemsPane", function () {
		it("should display selected annotations groupped by parent item", async () => {
			let toplevelItemOne = await createDataObject('item', { title: "Item one" });
			let attachmentOne = await importFileAttachment('test.pdf', { title: 'PDF', parentItemID: toplevelItemOne.id });
			let highlightOne = await createAnnotation('highlight', attachmentOne);
			
			let toplevelItemTwo = await createDataObject('item', { title: "Item two" });
			let attachmentTwo = await importFileAttachment('test.pdf', { title: 'PDF', parentItemID: toplevelItemTwo.id });
			let highlightTwo = await createAnnotation('highlight', attachmentTwo);

			ZoteroPane.itemsView.expandAllRows(true);

			await ZoteroPane.itemsView.selectItems([highlightOne.id, highlightTwo.id]);

			let sections = [...win.document.querySelectorAll("annotation-items-pane collapsible-section")];
			// Top level items' titles are in section summaries
			assert.equal(sections[0].summary, toplevelItemOne.getDisplayTitle());
			assert.equal(sections[1].summary, toplevelItemTwo.getDisplayTitle());
			// Each item's section contains its annotation
			assert.equal(sections[0].querySelector("annotation-row").annotation.id, highlightOne.id);
			assert.equal(sections[1].querySelector("annotation-row").annotation.id, highlightTwo.id);
		});

		it("should refresh when annotation is updated", async () => {
			let toplevelItemOne = await createDataObject('item', { title: "Item one" });
			let attachmentOne = await importFileAttachment('test.pdf', { title: 'PDF', parentItemID: toplevelItemOne.id });
			let highlightOne = await createAnnotation('highlight', attachmentOne);

			highlightOne.annotationText = "Annotation";
			await highlightOne.saveTx();
			
			ZoteroPane.itemsView.expandAllRows(true);
			await ZoteroPane.itemsView.selectItems([highlightOne.id]);

			assert.equal(win.document.querySelector("annotation-items-pane annotation-row .quote").textContent, "Annotation");
			highlightOne.annotationText = "Updated";
			await highlightOne.saveTx();
			assert.equal(win.document.querySelector("annotation-items-pane annotation-row .quote").textContent, "Updated");
		});
	});

	describe("Collapsing", function () {
		function isCollapsed() {
			if (Zotero_Tabs.selectedType === 'reader') {
				return ZoteroContextPane.collapsed;
			}
			else {
				return ZoteroPane.itemPane.collapsed;
			}
		}
		
		function getVisibleToggle() {
			let isVisible = el => el
				&& !!el.clientWidth
				&& getComputedStyle(el).visibility === 'visible'
				// Really over the top, but the visibility of deck descendants
				// with a `display set in CSS seemingly can't be detected any
				// way but this:
				&& (!el.closest('deck') || el.closest('deck').selectedPanel === el.closest('deck > *'));
			
			if (isVisible(doc.querySelector('#zotero-view-item-sidenav toolbarbutton[data-action="toggle-pane"]'))) {
				return 'item pane sidenav';
			}
			
			if (isVisible(doc.querySelector('#zotero-context-pane-sidenav toolbarbutton[data-action="toggle-pane"]'))) {
				return 'context pane sidenav';
			}
			
			if (isVisible(doc.querySelector('#zotero-tb-toggle-item-pane-stacked'))) {
				return 'item tree toolbar';
			}
			
			if (
				Zotero.Reader._readers.some(
					r => isVisible(r._iframe.contentDocument?.querySelector('.toolbar-button.context-pane-toggle'))
				)
			) {
				return 'reader toolbar';
			}
			
			return 'none';
		}
		
		async function waitForToggle(togglePosition) {
			while (getVisibleToggle() !== togglePosition) {
				await Zotero.Promise.delay(100);
			}
		}
		
		let attachment;
		
		before(async () => {
			attachment = await importPDFAttachment();
		});
		
		beforeEach(() => {
			// Make the window wide enough not to automatically enter Stacked mode
			win.resizeTo(1000, 800);
			Zotero.Prefs.set('layout', 'standard');
			ZoteroPane.updateLayout();
			
			Zotero_Tabs.select('zotero-pane');
			ZoteroPane.itemPane.collapsed = false;
			ZoteroContextPane.collapsed = true;
		});

		it("should initially show sidenav toggle", async function () {
			assert.isFalse(isCollapsed());
			assert.equal(getVisibleToggle(), 'item pane sidenav');
		});

		it("should still show sidenav toggle after collapse in library", function () {
			assert.isFalse(isCollapsed());
			ZoteroPane.itemPane.collapsed = true;
			assert.isTrue(isCollapsed());
			assert.equal(getVisibleToggle(), 'item pane sidenav');
		});

		it("should switch to item tree toolbar toggle in Stacked mode", function () {
			assert.isFalse(isCollapsed());
			Zotero.Prefs.set('layout', 'stacked');
			assert.isFalse(isCollapsed());
			assert.equal(getVisibleToggle(), 'item tree toolbar');
		});

		it("should remain visible in Stacked mode after collapsing", function () {
			Zotero.Prefs.set('layout', 'stacked');
			ZoteroPane.itemPane.collapsed = true;
			assert.isTrue(isCollapsed());
			assert.equal(getVisibleToggle(), 'item tree toolbar');
		});

		it("should keep collapsed state after switching from Standard to Stacked", function () {
			assert.isFalse(isCollapsed());
			ZoteroPane.itemPane.collapsed = true;
			assert.isTrue(isCollapsed());
			Zotero.Prefs.set('layout', 'stacked');
			assert.isTrue(isCollapsed());
		});

		it("should keep collapsed state after switching from Stacked to Standard", function () {
			Zotero.Prefs.set('layout', 'stacked');
			assert.isFalse(isCollapsed());
			ZoteroPane.itemPane.collapsed = true;
			assert.isTrue(isCollapsed());
			Zotero.Prefs.set('layout', 'standard');
			assert.isTrue(isCollapsed());
		});

		it("should show in reader toolbar when collapsed in Standard mode", async function () {
			await ZoteroPane.viewItems([attachment]);
			await Zotero.Reader.getByTabID(Zotero_Tabs.selectedID)._waitForReader();

			assert.isTrue(isCollapsed());
			await waitForToggle('reader toolbar');
		});

		it("should show in reader sidenav when expanded in Standard mode", async function () {
			await ZoteroPane.viewItems([attachment]);
			await Zotero.Reader.getByTabID(Zotero_Tabs.selectedID)._waitForReader();

			ZoteroContextPane.collapsed = false;
			await waitForToggle('context pane sidenav');
		});

		it("should return to reader toolbar after collapsing in Standard mode", async function () {
			await ZoteroPane.viewItems([attachment]);
			await Zotero.Reader.getByTabID(Zotero_Tabs.selectedID)._waitForReader();
			
			ZoteroContextPane.collapsed = false;
			ZoteroContextPane.collapsed = true;
			await waitForToggle('reader toolbar');
		});

		it("should show in reader toolbar when collapsed in Stacked mode", async function () {
			await ZoteroPane.viewItems([attachment]);
			await Zotero.Reader.getByTabID(Zotero_Tabs.selectedID)._waitForReader();

			assert.isTrue(isCollapsed());
			Zotero.Prefs.set('layout', 'stacked');
			assert.isTrue(isCollapsed());
			await waitForToggle('reader toolbar');
		});

		it("should stay in reader toolbar when expanded in Stacked mode", async function () {
			await ZoteroPane.viewItems([attachment]);
			await Zotero.Reader.getByTabID(Zotero_Tabs.selectedID)._waitForReader();

			assert.isTrue(isCollapsed());
			Zotero.Prefs.set('layout', 'stacked');
			assert.isTrue(isCollapsed());
			ZoteroContextPane.collapsed = false;
			assert.isFalse(isCollapsed());
			await waitForToggle('reader toolbar');
		});
	});
});
