| // Copyright 2018, 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" |
| "io/ioutil" |
| "net/http" |
| "net/http/httptest" |
| "os" |
| "testing" |
| "time" |
| |
| "contrib.go.opencensus.io/exporter/stackdriver/internal/testpb" |
| "go.opencensus.io/plugin/ochttp" |
| "go.opencensus.io/stats/view" |
| "go.opencensus.io/trace" |
| "golang.org/x/net/context/ctxhttp" |
| ) |
| |
| func TestExport(t *testing.T) { |
| projectID, ok := os.LookupEnv("STACKDRIVER_TEST_PROJECT_ID") |
| if !ok { |
| t.Skip("STACKDRIVER_TEST_PROJECT_ID not set") |
| } |
| |
| var exportErrors []error |
| |
| exporter, err := NewExporter(Options{ProjectID: projectID, OnError: func(err error) { |
| exportErrors = append(exportErrors, err) |
| }}) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer exporter.Flush() |
| |
| trace.RegisterExporter(exporter) |
| defer trace.UnregisterExporter(exporter) |
| view.RegisterExporter(exporter) |
| defer view.UnregisterExporter(exporter) |
| |
| trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) |
| |
| _, span := trace.StartSpan(context.Background(), "custom-span") |
| time.Sleep(10 * time.Millisecond) |
| span.End() |
| |
| // Test HTTP spans |
| |
| handler := http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) { |
| _, backgroundSpan := trace.StartSpan(context.Background(), "BackgroundWork") |
| spanContext := backgroundSpan.SpanContext() |
| time.Sleep(10 * time.Millisecond) |
| backgroundSpan.End() |
| |
| _, span := trace.StartSpan(req.Context(), "Sleep") |
| span.AddLink(trace.Link{Type: trace.LinkTypeChild, TraceID: spanContext.TraceID, SpanID: spanContext.SpanID}) |
| time.Sleep(150 * time.Millisecond) // do work |
| span.End() |
| rw.Write([]byte("Hello, world!")) |
| }) |
| server := httptest.NewServer(&ochttp.Handler{Handler: handler}) |
| defer server.Close() |
| |
| ctx := context.Background() |
| client := &http.Client{ |
| Transport: &ochttp.Transport{}, |
| } |
| resp, err := ctxhttp.Get(ctx, client, server.URL+"/test/123?abc=xyz") |
| if err != nil { |
| t.Fatal(err) |
| } |
| body, err := ioutil.ReadAll(resp.Body) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if want, got := "Hello, world!", string(body); want != got { |
| t.Fatalf("resp.Body = %q; want %q", want, got) |
| } |
| |
| // Flush twice to expose issue of exporter creating traces internally (#557) |
| exporter.Flush() |
| exporter.Flush() |
| |
| for _, err := range exportErrors { |
| t.Error(err) |
| } |
| } |
| |
| func TestGRPC(t *testing.T) { |
| projectID, ok := os.LookupEnv("STACKDRIVER_TEST_PROJECT_ID") |
| if !ok { |
| t.Skip("STACKDRIVER_TEST_PROJECT_ID not set") |
| } |
| |
| exporter, err := NewExporter(Options{ProjectID: projectID}) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer exporter.Flush() |
| |
| trace.RegisterExporter(exporter) |
| defer trace.UnregisterExporter(exporter) |
| view.RegisterExporter(exporter) |
| defer view.UnregisterExporter(exporter) |
| |
| trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) |
| |
| client, done := testpb.NewTestClient(t) |
| defer done() |
| |
| client.Single(context.Background(), &testpb.FooRequest{SleepNanos: int64(42 * time.Millisecond)}) |
| } |