| // Copyright 2017, OpenCensus Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package stackdriver |
| |
| import ( |
| "context" |
| "fmt" |
| "testing" |
| "time" |
| |
| "go.opencensus.io/trace" |
| tracepb "google.golang.org/genproto/googleapis/devtools/cloudtrace/v2" |
| ) |
| |
| func TestBundling(t *testing.T) { |
| exporter := newTraceExporterWithClient(Options{ |
| ProjectID: "fakeProjectID", |
| BundleDelayThreshold: time.Second / 10, |
| BundleCountThreshold: 10, |
| }, nil) |
| |
| ch := make(chan []*tracepb.Span) |
| exporter.uploadFn = func(spans []*tracepb.Span) { |
| ch <- spans |
| } |
| trace.RegisterExporter(exporter) |
| |
| for i := 0; i < 35; i++ { |
| _, span := trace.StartSpan(context.Background(), "span", trace.WithSampler(trace.AlwaysSample())) |
| span.End() |
| } |
| |
| // Read the first three bundles. |
| <-ch |
| <-ch |
| <-ch |
| |
| // Test that the fourth bundle isn't sent early. |
| select { |
| case <-ch: |
| t.Errorf("bundle sent too early") |
| case <-time.After(time.Second / 20): |
| <-ch |
| } |
| |
| // Test that there aren't extra bundles. |
| select { |
| case <-ch: |
| t.Errorf("too many bundles sent") |
| case <-time.After(time.Second / 5): |
| } |
| } |
| |
| func TestNewContext_Timeout(t *testing.T) { |
| e := newTraceExporterWithClient(Options{ |
| Timeout: 10 * time.Millisecond, |
| }, nil) |
| ctx, cancel := e.o.newContextWithTimeout() |
| defer cancel() |
| select { |
| case <-time.After(60 * time.Second): |
| t.Fatal("should have timed out") |
| case <-ctx.Done(): |
| } |
| } |
| |
| func TestTraceSpansBufferMaxBytes(t *testing.T) { |
| e := newTraceExporterWithClient(Options{ |
| Context: context.Background(), |
| Timeout: 10 * time.Millisecond, |
| TraceSpansBufferMaxBytes: 20000, |
| }, nil) |
| waitCh := make(chan struct{}) |
| exported := 0 |
| e.uploadFn = func(spans []*tracepb.Span) { |
| <-waitCh |
| exported++ |
| } |
| for i := 0; i < 10; i++ { |
| e.ExportSpan(makeSampleSpanData()) |
| } |
| close(waitCh) |
| e.Flush() |
| if exported != 2 { |
| t.Errorf("exported = %d; want 2", exported) |
| } |
| } |
| |
| func makeSampleSpanData() *trace.SpanData { |
| sd := &trace.SpanData{ |
| Annotations: make([]trace.Annotation, 32), |
| Links: make([]trace.Link, 32), |
| MessageEvents: make([]trace.MessageEvent, 128), |
| Attributes: make(map[string]interface{}), |
| } |
| for i := 0; i < 32; i++ { |
| sd.Attributes[fmt.Sprintf("attribute-%d", i)] = "" |
| } |
| return sd |
| } |