Fix test configuration and add basic tests

.vscode-test.mjs

@@ -1,5 +1,8 @@
 import { defineConfig } from "@vscode/test-cli"
 
 export default defineConfig({
-	files: "out/test/**/*.test.js",
+	files: "out/**/*.test.js",
+	mocha: {
+		timeout: 20000, // Maximum time (in ms) that a test can run before failing
+	},
 })

package.json

@@ -133,7 +133,7 @@
 		"watch:esbuild": "node esbuild.js --watch",
 		"watch:tsc": "tsc --noEmit --watch --project tsconfig.json",
 		"package": "npm run build:webview && npm run check-types && npm run lint && node esbuild.js --production",
-		"compile-tests": "tsc -p . --outDir out",
+        "compile-tests": "tsc -p ./tsconfig.test.json --outDir out",
 		"watch-tests": "tsc -p . -w --outDir out",
 		"pretest": "npm run compile-tests && npm run compile && npm run lint",
 		"check-types": "tsc --noEmit",

src/test/extension.test.ts

@@ -5,11 +5,25 @@ import * as assert from "assert"
 import * as vscode from "vscode"
 // import * as myExtension from '../../extension';
 
-suite("Extension Test Suite", () => {
-	vscode.window.showInformationMessage("Start all tests.")
+import { readFile } from "fs/promises"
+import path from "path"
 
-	test("Sample test", () => {
-		assert.strictEqual(-1, [1, 2, 3].indexOf(5))
-		assert.strictEqual(-1, [1, 2, 3].indexOf(0))
+const packagePath = path.join(__dirname, "..", "..", "..", "package.json")
+
+suite("Extension Test Suite", () => {
+	suiteTeardown(() => {
+		vscode.window.showInformationMessage("All tests done!")
+	})
+
+	test("Sanity check", async () => {
+		const packageJSON = JSON.parse(await readFile(packagePath, "utf8"))
+		const id = packageJSON.publisher + "." + packageJSON.name
+		const clineExtensionApi = vscode.extensions.getExtension(id)
+		assert.equal(clineExtensionApi?.id, id)
+	})
+
+	test("Ensure that the extension is correctly loaded by running a command", async () => {
+		await new Promise((resolve) => setTimeout(resolve, 400))
+		await vscode.commands.executeCommand("cline.plusButtonClicked")
 	})
 })

src/utils/path.test.ts

@@ -0,0 +1,48 @@
+import * as assert from "assert"
+import * as path from "path"
+import * as os from "os"
+import { arePathsEqual, getReadablePath } from "./path"
+
+suite("Path Utils", () => {
+	test("arePathsEqual handles undefined paths", () => {
+		assert.strictEqual(arePathsEqual(undefined, undefined), true)
+		assert.strictEqual(arePathsEqual("foo", undefined), false)
+		assert.strictEqual(arePathsEqual(undefined, "foo"), false)
+	})
+
+	test("arePathsEqual handles case sensitivity based on platform", () => {
+		if (process.platform === "win32") {
+			assert.strictEqual(arePathsEqual("FOO/BAR", "foo/bar"), true)
+		} else {
+			assert.strictEqual(arePathsEqual("FOO/BAR", "foo/bar"), false)
+		}
+	})
+
+	test("arePathsEqual handles normalized paths", () => {
+		assert.strictEqual(arePathsEqual("/tmp/./dir", "/tmp/../tmp/dir"), true)
+		assert.strictEqual(arePathsEqual("/tmp/./dir", "/tmp/../dir"), false)
+	})
+
+	test("getReadablePath handles desktop path", () => {
+		const desktop = path.join(os.homedir(), "Desktop")
+		const testPath = path.join(desktop, "test.txt")
+		assert.strictEqual(getReadablePath(desktop, "test.txt"), testPath.replace(/\\/g, "/"))
+	})
+
+	test("getReadablePath shows relative paths within cwd", () => {
+		const cwd = "/home/user/project"
+		const filePath = "/home/user/project/src/file.txt"
+		assert.strictEqual(getReadablePath(cwd, filePath), "src/file.txt")
+	})
+
+	test("getReadablePath shows basename when path equals cwd", () => {
+		const cwd = "/home/user/project"
+		assert.strictEqual(getReadablePath(cwd, cwd), "project")
+	})
+
+	test("getReadablePath shows absolute path when outside cwd", () => {
+		const cwd = "/home/user/project"
+		const filePath = "/home/user/other/file.txt"
+		assert.strictEqual(getReadablePath(cwd, filePath), filePath)
+	})
+})

tsconfig.test.json

@@ -0,0 +1,13 @@
+{
+	// This separate tsconfig is necessary because VS Code's test runner requires CommonJS modules,
+	// while our main project uses ES Modules (ESM). This config inherits most settings from the base
+	// tsconfig.json but overrides the module system for test files only. This doesn't affect how
+	// tests interact with the main codebase - it only changes how the test files themselves are
+	// compiled to make them compatible with VS Code's test runner.
+	"extends": "./tsconfig.json",
+	"compilerOptions": {
+		"module": "commonjs",
+		"moduleResolution": "node"
+	},
+	"include": ["src/**/*.test.ts"]
+}