mirror of
https://github.com/featurebasedb/featurebase.git
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125 lines
3.1 KiB
Go
125 lines
3.1 KiB
Go
// Copyright 2017 Pilosa Corp.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pilosa_test
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import (
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"io/ioutil"
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"os"
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"testing"
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"github.com/pilosa/pilosa"
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"github.com/pilosa/pilosa/test"
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)
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// View is a test wrapper for pilosa.View.
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type View struct {
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*pilosa.View
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RowAttrStore pilosa.AttrStore
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}
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// NewView returns a new instance of View with a temporary path.
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func NewView(index, field, name string) *View {
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path, err := ioutil.TempDir("", "pilosa-view-")
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if err != nil {
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panic(err)
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}
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v := &View{
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View: pilosa.NewView(path, index, field, name, pilosa.DefaultCacheSize),
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RowAttrStore: test.MustOpenAttrStore(),
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}
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v.View.RowAttrStore = v.RowAttrStore
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return v
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}
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// MustOpenView creates and opens an view at a temporary path. Panic on error.
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func MustOpenView(index, field, name string) *View {
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v := NewView(index, field, name)
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if err := v.Open(); err != nil {
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panic(err)
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}
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return v
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}
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// Close closes the view and removes all underlying data.
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func (v *View) Close() error {
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defer os.Remove(v.Path())
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defer v.RowAttrStore.Close()
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return v.View.Close()
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}
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// Reopen closes the view and reopens it as a new instance.
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func (v *View) Reopen() error {
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path := v.Path()
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if err := v.View.Close(); err != nil {
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return err
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}
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v.View = pilosa.NewView(path, v.Index(), v.Field(), v.Name(), pilosa.DefaultCacheSize)
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v.View.RowAttrStore = v.RowAttrStore
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return v.Open()
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}
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// MustSetBits sets columns on a row. Panic on error.
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// This function does not accept a timestamp or quantum.
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func (v *View) MustSetBits(rowID uint64, columnIDs ...uint64) {
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for _, columnID := range columnIDs {
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if _, err := v.SetBit(rowID, columnID); err != nil {
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panic(err)
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}
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}
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}
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// MustClearColumns clears columns on a row. Panic on error.
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func (v *View) MustClearBits(rowID uint64, columnIDs ...uint64) {
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for _, columnID := range columnIDs {
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if _, err := v.ClearBit(rowID, columnID); err != nil {
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panic(err)
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}
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}
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}
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// Ensure view can open and retrieve a fragment.
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func TestView_DeleteFragment(t *testing.T) {
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v := MustOpenView("i", "f", "v")
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defer v.Close()
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slice := uint64(9)
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// Create fragment.
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fragment, err := v.CreateFragmentIfNotExists(slice)
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if err != nil {
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t.Fatal(err)
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} else if fragment == nil {
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t.Fatal("expected fragment")
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}
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err = v.DeleteFragment(slice)
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if err != nil {
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t.Fatal(err)
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}
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if v.Fragment(slice) != nil {
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t.Fatal("fragment still exists in view")
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}
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// Recreate fragment with same slice, verify that the old fragment was not reused.
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fragment2, err := v.CreateFragmentIfNotExists(slice)
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if err != nil {
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t.Fatal(err)
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} else if fragment == fragment2 {
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t.Fatal("failed to create new fragment")
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}
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}
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