mirror of https://github.com/grafana/grafana
search: add index batching (#104163)
* add basic search backend integration tests * add search backend benchmark * add benchmark indexServer * fix * lint * add more tests * lint * do not use the poller * batch write * refactor and add tests * improvements * improvements * cleanup * only observe index success * add monitorIndexEvents method * nit use switch instead of if * make newIndexQueueProcessor private * simplify runProcessor * go lintpull/105181/head
parent
0ceea29787
commit
15b3de5893
@ -0,0 +1,143 @@ |
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package resource |
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import ( |
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"context" |
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"sync" |
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"time" |
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) |
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|
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// indexQueueProcessor manages queue-based operations for a specific index
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// It is responsible for ingesting events for a single index
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// It will batch events and send them to the index in a single bulk request
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type indexQueueProcessor struct { |
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index ResourceIndex |
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nsr NamespacedResource |
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queue chan *WrittenEvent |
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batchSize int |
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builder DocumentBuilder |
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resChan chan *IndexEvent // Channel to send results to the caller
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mu sync.Mutex |
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running bool |
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} |
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type IndexEvent struct { |
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WrittenEvent *WrittenEvent |
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Action IndexAction |
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IndexableDocument *IndexableDocument // empty for delete actions
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Timestamp time.Time |
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Latency time.Duration |
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Err error |
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} |
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// newIndexQueueProcessor creates a new IndexQueueProcessor for the given index
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func newIndexQueueProcessor(index ResourceIndex, nsr NamespacedResource, batchSize int, builder DocumentBuilder, resChan chan *IndexEvent) *indexQueueProcessor { |
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return &indexQueueProcessor{ |
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index: index, |
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nsr: nsr, |
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queue: make(chan *WrittenEvent, 1000), // Buffer size of 1000 events
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batchSize: batchSize, |
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builder: builder, |
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resChan: resChan, |
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running: false, |
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} |
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} |
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// Add adds an event to the queue and ensures the background processor is running
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func (b *indexQueueProcessor) Add(evt *WrittenEvent) { |
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b.queue <- evt |
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// Start the processor if it's not already running
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b.mu.Lock() |
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defer b.mu.Unlock() |
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if !b.running { |
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b.running = true |
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go b.runProcessor() |
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} |
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} |
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// runProcessor is the task processing the queue of written events
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func (b *indexQueueProcessor) runProcessor() { |
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defer func() { |
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b.mu.Lock() |
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b.running = false |
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b.mu.Unlock() |
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}() |
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for { |
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batch := make([]*WrittenEvent, 0, b.batchSize) |
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select { |
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case evt := <-b.queue: |
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batch = append(batch, evt) |
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case <-time.After(5 * time.Second): |
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// No events in the past few seconds, stop the processor
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return |
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} |
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prepare: |
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for len(batch) < b.batchSize { |
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select { |
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case evt := <-b.queue: |
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batch = append(batch, evt) |
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default: |
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break prepare |
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} |
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} |
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b.process(batch) |
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} |
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} |
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// process handles a batch of events
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func (b *indexQueueProcessor) process(batch []*WrittenEvent) { |
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if len(batch) == 0 { |
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return |
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} |
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// Create bulk request
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req := &BulkIndexRequest{ |
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Items: make([]*BulkIndexItem, 0, len(batch)), |
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} |
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resp := make([]*IndexEvent, 0, len(batch)) |
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for _, evt := range batch { |
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result := &IndexEvent{ |
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WrittenEvent: evt, |
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} |
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resp = append(resp, result) |
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item := &BulkIndexItem{} |
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if evt.Type == WatchEvent_DELETED { |
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item.Action = ActionDelete |
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item.Key = evt.Key |
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} else { |
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item.Action = ActionIndex |
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second) |
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defer cancel() |
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doc, err := b.builder.BuildDocument(ctx, evt.Key, evt.ResourceVersion, evt.Value) |
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if err != nil { |
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result.Err = err |
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} else { |
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item.Doc = doc |
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result.IndexableDocument = doc |
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} |
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} |
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req.Items = append(req.Items, item) |
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} |
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err := b.index.BulkIndex(req) |
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if err != nil { |
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for _, r := range resp { |
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r.Err = err |
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} |
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} |
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ts := time.Now() |
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if b.resChan != nil { |
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for _, r := range resp { |
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r.Timestamp = ts |
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r.Latency = time.Duration(ts.UnixMicro()-r.WrittenEvent.ResourceVersion) * time.Microsecond |
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b.resChan <- r |
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} |
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} |
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} |
@ -0,0 +1,173 @@ |
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package resource |
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import ( |
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"testing" |
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"time" |
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"github.com/stretchr/testify/assert" |
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"github.com/stretchr/testify/mock" |
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) |
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func TestNewIndexQueueProcessor(t *testing.T) { |
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mockIndex := &MockResourceIndex{} |
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mockBuilder := &MockDocumentBuilder{} |
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nsr := NamespacedResource{Resource: "test"} |
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resChan := make(chan *IndexEvent) |
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processor := newIndexQueueProcessor(mockIndex, nsr, 10, mockBuilder, resChan) |
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assert.NotNil(t, processor) |
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assert.Equal(t, 10, processor.batchSize) |
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assert.NotNil(t, processor.queue) |
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} |
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func TestIndexQueueProcessor_SingleEvent(t *testing.T) { |
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mockIndex := &MockResourceIndex{} |
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mockBuilder := &MockDocumentBuilder{} |
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nsr := NamespacedResource{Resource: "test"} |
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resChan := make(chan *IndexEvent) |
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processor := newIndexQueueProcessor(mockIndex, nsr, 10, mockBuilder, resChan) |
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// Test data
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key := ResourceKey{Resource: "test", Name: "obj1", Namespace: "default"} |
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evt := &WrittenEvent{ |
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Key: &key, |
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ResourceVersion: time.Now().UnixMicro(), |
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Type: WatchEvent_ADDED, |
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Value: []byte(`{"test": "data"}`), |
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} |
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// Setup expectations
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mockBuilder.On("BuildDocument", mock.Anything, &key, evt.ResourceVersion, evt.Value).Return(&IndexableDocument{Key: &key}, nil) |
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mockIndex.On("BulkIndex", mock.MatchedBy(func(req *BulkIndexRequest) bool { |
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return len(req.Items) == 1 && req.Items[0].Action == ActionIndex |
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})).Return(nil) |
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// Start processor and wait for the document to be indexed
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processor.Add(evt) |
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resp := <-resChan |
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assert.NotNil(t, resp) |
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assert.Nil(t, resp.Err) |
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assert.Equal(t, &key, resp.IndexableDocument.Key) |
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mockBuilder.AssertExpectations(t) |
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mockIndex.AssertExpectations(t) |
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} |
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func TestIndexQueueProcessor_BatchProcessing(t *testing.T) { |
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mockIndex := &MockResourceIndex{} |
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mockBuilder := &MockDocumentBuilder{} |
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nsr := NamespacedResource{Namespace: "default", Resource: "test"} |
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resChan := make(chan *IndexEvent) |
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processor := newIndexQueueProcessor(mockIndex, nsr, 2, mockBuilder, resChan) |
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// Test data for two events
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events := []*WrittenEvent{ |
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{ |
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Key: &ResourceKey{Resource: "test", Name: "obj1", Namespace: "default"}, |
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ResourceVersion: time.Now().UnixMicro(), |
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Type: WatchEvent_ADDED, |
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Value: []byte(`{"test": "data1"}`), |
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}, |
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{ |
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Key: &ResourceKey{Resource: "test", Name: "obj2", Namespace: "default"}, |
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ResourceVersion: time.Now().UnixMicro(), |
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Type: WatchEvent_DELETED, |
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}, |
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} |
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// Setup expectations
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mockBuilder.On("BuildDocument", mock.Anything, events[0].Key, events[0].ResourceVersion, events[0].Value). |
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Return(&IndexableDocument{Key: events[0].Key}, nil) |
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mockIndex.On("BulkIndex", mock.MatchedBy(func(req *BulkIndexRequest) bool { |
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return len(req.Items) == 2 && |
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req.Items[0].Action == ActionIndex && |
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req.Items[1].Action == ActionDelete |
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})).Return(nil) |
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// Start processor and add events
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processor.Add(events[0]) |
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processor.Add(events[1]) |
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r0 := <-resChan |
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assert.Nil(t, r0.Err) |
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assert.Equal(t, events[0].Key, r0.IndexableDocument.Key) |
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r1 := <-resChan |
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assert.Nil(t, r1.Err) |
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assert.Nil(t, r1.IndexableDocument) // deleted event
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mockBuilder.AssertExpectations(t) |
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mockIndex.AssertExpectations(t) |
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} |
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func TestIndexQueueProcessor_BuildDocumentError(t *testing.T) { |
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mockIndex := &MockResourceIndex{} |
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mockBuilder := &MockDocumentBuilder{} |
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nsr := NamespacedResource{Resource: "test"} |
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resChan := make(chan *IndexEvent) |
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processor := newIndexQueueProcessor(mockIndex, nsr, 10, mockBuilder, resChan) |
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evt := &WrittenEvent{ |
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Key: &ResourceKey{Resource: "test", Name: "obj1", Namespace: "default"}, |
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ResourceVersion: time.Now().UnixMicro(), |
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Type: WatchEvent_ADDED, |
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Value: []byte(`invalid json`), |
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} |
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// Setup expectations for error case
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mockBuilder.On("BuildDocument", mock.Anything, evt.Key, evt.ResourceVersion, evt.Value). |
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Return(nil, assert.AnError) |
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// The bulk index should not be called since document building failed
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mockIndex.On("BulkIndex", mock.Anything).Return(nil).Maybe() |
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processor.Add(evt) |
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resp := <-resChan |
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assert.NotNil(t, resp) |
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assert.Error(t, resp.Err) |
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assert.Nil(t, resp.IndexableDocument) |
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mockBuilder.AssertExpectations(t) |
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mockIndex.AssertExpectations(t) |
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} |
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func TestIndexQueueProcessor_BulkIndexError(t *testing.T) { |
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mockIndex := &MockResourceIndex{} |
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mockBuilder := &MockDocumentBuilder{} |
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nsr := NamespacedResource{Resource: "test"} |
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resChan := make(chan *IndexEvent) |
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processor := newIndexQueueProcessor(mockIndex, nsr, 10, mockBuilder, resChan) |
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evt := &WrittenEvent{ |
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Key: &ResourceKey{Resource: "test", Name: "obj1", Namespace: "default"}, |
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ResourceVersion: time.Now().UnixMicro(), |
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Type: WatchEvent_ADDED, |
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Value: []byte(`{"test": "data"}`), |
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} |
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// Setup expectations
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mockBuilder.On("BuildDocument", mock.Anything, evt.Key, evt.ResourceVersion, evt.Value). |
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Return(&IndexableDocument{Key: evt.Key}, nil) |
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mockIndex.On("BulkIndex", mock.Anything).Return(assert.AnError) |
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processor.Add(evt) |
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resp := <-resChan |
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assert.NotNil(t, resp) |
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assert.Error(t, resp.Err) |
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mockBuilder.AssertExpectations(t) |
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mockIndex.AssertExpectations(t) |
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} |
@ -0,0 +1,54 @@ |
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package resource |
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import ( |
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"context" |
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"github.com/grafana/authlib/types" |
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"github.com/stretchr/testify/mock" |
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) |
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var _ ResourceIndex = &MockResourceIndex{} |
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// Mock implementations
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type MockResourceIndex struct { |
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mock.Mock |
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} |
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func (m *MockResourceIndex) BulkIndex(req *BulkIndexRequest) error { |
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args := m.Called(req) |
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return args.Error(0) |
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} |
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func (m *MockResourceIndex) Search(ctx context.Context, access types.AccessClient, req *ResourceSearchRequest, federate []ResourceIndex) (*ResourceSearchResponse, error) { |
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args := m.Called(ctx, access, req, federate) |
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return args.Get(0).(*ResourceSearchResponse), args.Error(1) |
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} |
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func (m *MockResourceIndex) CountManagedObjects(ctx context.Context) ([]*CountManagedObjectsResponse_ResourceCount, error) { |
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args := m.Called(ctx) |
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return args.Get(0).([]*CountManagedObjectsResponse_ResourceCount), args.Error(1) |
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} |
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func (m *MockResourceIndex) DocCount(ctx context.Context, folder string) (int64, error) { |
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args := m.Called(ctx, folder) |
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return args.Get(0).(int64), args.Error(1) |
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} |
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func (m *MockResourceIndex) ListManagedObjects(ctx context.Context, req *ListManagedObjectsRequest) (*ListManagedObjectsResponse, error) { |
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args := m.Called(ctx, req) |
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return args.Get(0).(*ListManagedObjectsResponse), args.Error(1) |
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} |
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var _ DocumentBuilder = &MockDocumentBuilder{} |
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type MockDocumentBuilder struct { |
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mock.Mock |
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} |
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func (m *MockDocumentBuilder) BuildDocument(ctx context.Context, key *ResourceKey, resourceVersion int64, value []byte) (*IndexableDocument, error) { |
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args := m.Called(ctx, key, resourceVersion, value) |
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if args.Get(0) == nil { |
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return nil, args.Error(1) |
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} |
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return args.Get(0).(*IndexableDocument), nil |
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} |
@ -0,0 +1,56 @@ |
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package search |
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import ( |
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"context" |
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"testing" |
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"github.com/stretchr/testify/require" |
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"github.com/grafana/grafana/pkg/infra/tracing" |
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"github.com/grafana/grafana/pkg/services/featuremgmt" |
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"github.com/grafana/grafana/pkg/storage/unified/resource" |
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unitest "github.com/grafana/grafana/pkg/storage/unified/testing" |
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) |
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func TestBleveSearchBackend(t *testing.T) { |
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if testing.Short() { |
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t.Skip("skipping integration test") |
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} |
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// Run the search backend test suite
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unitest.RunSearchBackendTest(t, func(ctx context.Context) resource.SearchBackend { |
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tempDir := t.TempDir() |
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// Create a new bleve backend
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backend, err := NewBleveBackend(BleveOptions{ |
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Root: tempDir, |
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FileThreshold: 5, |
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}, tracing.NewNoopTracerService(), featuremgmt.WithFeatures(featuremgmt.FlagUnifiedStorageSearchPermissionFiltering), nil) |
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require.NoError(t, err) |
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require.NotNil(t, backend) |
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return backend |
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}, &unitest.TestOptions{ |
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NSPrefix: "bleve-test", |
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}) |
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} |
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func TestSearchBackendBenchmark(t *testing.T) { |
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opts := &unitest.BenchmarkOptions{ |
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NumResources: 10000, |
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Concurrency: 1, // For now we only want to test the write throughput
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NumNamespaces: 1, |
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NumGroups: 1, |
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NumResourceTypes: 1, |
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} |
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tempDir := t.TempDir() |
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// Create a new bleve backend
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backend, err := NewBleveBackend(BleveOptions{ |
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Root: tempDir, |
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}, tracing.NewNoopTracerService(), featuremgmt.WithFeatures(featuremgmt.FlagUnifiedStorageSearchPermissionFiltering), nil) |
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require.NoError(t, err) |
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require.NotNil(t, backend) |
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unitest.BenchmarkSearchBackend(t, backend, opts) |
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} |
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package test |
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import ( |
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"context" |
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"testing" |
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"time" |
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"github.com/stretchr/testify/require" |
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"github.com/grafana/grafana/pkg/storage/unified/resource" |
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"github.com/grafana/grafana/pkg/util/testutil" |
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) |
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// Test names for the search backend test suite
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const ( |
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TestBuildIndex = "build index" |
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TestTotalDocs = "total docs" |
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TestResourceIndex = "resource index" |
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) |
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// NewSearchBackendFunc is a function that creates a new SearchBackend instance
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type NewSearchBackendFunc func(ctx context.Context) resource.SearchBackend |
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// RunSearchBackendTest runs the search backend test suite
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func RunSearchBackendTest(t *testing.T, newBackend NewSearchBackendFunc, opts *TestOptions) { |
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if testing.Short() { |
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t.Skip("skipping integration test") |
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} |
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if opts == nil { |
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opts = &TestOptions{} |
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} |
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if opts.NSPrefix == "" { |
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opts.NSPrefix = "test-" + time.Now().Format("20060102150405") |
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} |
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t.Logf("Running tests with namespace prefix: %s", opts.NSPrefix) |
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cases := []struct { |
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name string |
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fn func(*testing.T, resource.SearchBackend, string) |
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}{ |
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{TestBuildIndex, runTestSearchBackendBuildIndex}, |
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{TestTotalDocs, runTestSearchBackendTotalDocs}, |
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{TestResourceIndex, runTestResourceIndex}, |
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} |
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for _, tc := range cases { |
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t.Run(tc.name, func(t *testing.T) { |
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tc.fn(t, newBackend(context.Background()), opts.NSPrefix) |
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}) |
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} |
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} |
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func runTestSearchBackendBuildIndex(t *testing.T, backend resource.SearchBackend, nsPrefix string) { |
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ctx := testutil.NewTestContext(t, time.Now().Add(5*time.Second)) |
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ns := resource.NamespacedResource{ |
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Namespace: nsPrefix + "-ns1", |
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Group: "group", |
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Resource: "resource", |
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} |
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// Get the index should return nil if the index does not exist
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index, err := backend.GetIndex(ctx, ns) |
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require.NoError(t, err) |
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require.Nil(t, index) |
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// Build the index
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index, err = backend.BuildIndex(ctx, ns, 0, 0, nil, func(index resource.ResourceIndex) (int64, error) { |
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// Write a test document
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err := index.BulkIndex(&resource.BulkIndexRequest{ |
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Items: []*resource.BulkIndexItem{ |
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{ |
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Action: resource.ActionIndex, |
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Doc: &resource.IndexableDocument{ |
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Key: &resource.ResourceKey{ |
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Namespace: ns.Namespace, |
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Group: ns.Group, |
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Resource: ns.Resource, |
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Name: "doc1", |
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}, |
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Title: "Document 1", |
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}, |
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}, |
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}, |
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}) |
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if err != nil { |
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return 0, err |
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} |
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return 1, nil |
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}) |
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require.NoError(t, err) |
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require.NotNil(t, index) |
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|
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// Get the index should now return the index
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index, err = backend.GetIndex(ctx, ns) |
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require.NoError(t, err) |
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require.NotNil(t, index) |
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} |
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func runTestSearchBackendTotalDocs(t *testing.T, backend resource.SearchBackend, nsPrefix string) { |
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// Get total document count
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count := backend.TotalDocs() |
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require.GreaterOrEqual(t, count, int64(0)) |
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} |
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|
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func runTestResourceIndex(t *testing.T, backend resource.SearchBackend, nsPrefix string) { |
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ctx := testutil.NewTestContext(t, time.Now().Add(5*time.Second)) |
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ns := resource.NamespacedResource{ |
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Namespace: nsPrefix + "-ns1", |
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Group: "group", |
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Resource: "resource", |
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} |
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|
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// Build initial index with some test documents
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index, err := backend.BuildIndex(ctx, ns, 3, 0, nil, func(index resource.ResourceIndex) (int64, error) { |
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err := index.BulkIndex(&resource.BulkIndexRequest{ |
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Items: []*resource.BulkIndexItem{ |
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{ |
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Action: resource.ActionIndex, |
||||
Doc: &resource.IndexableDocument{ |
||||
Key: &resource.ResourceKey{ |
||||
Namespace: ns.Namespace, |
||||
Group: ns.Group, |
||||
Resource: ns.Resource, |
||||
Name: "doc1", |
||||
}, |
||||
Title: "Document 1", |
||||
Tags: []string{"tag1", "tag2"}, |
||||
Fields: map[string]interface{}{ |
||||
"field1": 1, |
||||
"field2": "value1", |
||||
}, |
||||
}, |
||||
}, |
||||
{ |
||||
Action: resource.ActionIndex, |
||||
Doc: &resource.IndexableDocument{ |
||||
Key: &resource.ResourceKey{ |
||||
Namespace: ns.Namespace, |
||||
Group: ns.Group, |
||||
Resource: ns.Resource, |
||||
Name: "doc2", |
||||
}, |
||||
Title: "Document 2", |
||||
Tags: []string{"tag2", "tag3"}, |
||||
Fields: map[string]interface{}{ |
||||
"field1": 2, |
||||
"field2": "value2", |
||||
}, |
||||
}, |
||||
}, |
||||
}, |
||||
}) |
||||
require.NoError(t, err) |
||||
return int64(2), nil |
||||
}) |
||||
require.NoError(t, err) |
||||
require.NotNil(t, index) |
||||
|
||||
t.Run("Search", func(t *testing.T) { |
||||
req := &resource.ResourceSearchRequest{ |
||||
Options: &resource.ListOptions{ |
||||
Key: &resource.ResourceKey{ |
||||
Namespace: ns.Namespace, |
||||
Group: ns.Group, |
||||
Resource: ns.Resource, |
||||
}, |
||||
}, |
||||
Fields: []string{"title", "folder", "tags"}, |
||||
Query: "tag3", |
||||
Limit: 10, |
||||
} |
||||
resp, err := index.Search(ctx, nil, req, nil) |
||||
require.NoError(t, err) |
||||
require.NotNil(t, resp) |
||||
require.Equal(t, int64(1), resp.TotalHits) // Only doc3 should have tag3 now
|
||||
}) |
||||
} |
Loading…
Reference in new issue