diff options
Diffstat (limited to 'vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go')
-rw-r--r-- | vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go b/vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go deleted file mode 100644 index 72264da9a..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go +++ /dev/null @@ -1,123 +0,0 @@ -package prometheus - -import ( - "runtime" - "testing" - "time" - - dto "github.com/prometheus/client_model/go" -) - -func TestGoCollector(t *testing.T) { - var ( - c = NewGoCollector() - ch = make(chan Metric) - waitc = make(chan struct{}) - closec = make(chan struct{}) - old = -1 - ) - defer close(closec) - - go func() { - c.Collect(ch) - go func(c <-chan struct{}) { - <-c - }(closec) - <-waitc - c.Collect(ch) - }() - - for { - select { - case m := <-ch: - // m can be Gauge or Counter, - // currently just test the go_goroutines Gauge - // and ignore others. - if m.Desc().fqName != "go_goroutines" { - continue - } - pb := &dto.Metric{} - m.Write(pb) - if pb.GetGauge() == nil { - continue - } - - if old == -1 { - old = int(pb.GetGauge().GetValue()) - close(waitc) - continue - } - - if diff := int(pb.GetGauge().GetValue()) - old; diff != 1 { - // TODO: This is flaky in highly concurrent situations. - t.Errorf("want 1 new goroutine, got %d", diff) - } - - // GoCollector performs three sends per call. - // On line 27 we need to receive three more sends - // to shut down cleanly. - <-ch - <-ch - <-ch - return - case <-time.After(1 * time.Second): - t.Fatalf("expected collect timed out") - } - } -} - -func TestGCCollector(t *testing.T) { - var ( - c = NewGoCollector() - ch = make(chan Metric) - waitc = make(chan struct{}) - closec = make(chan struct{}) - oldGC uint64 - oldPause float64 - ) - defer close(closec) - - go func() { - c.Collect(ch) - // force GC - runtime.GC() - <-waitc - c.Collect(ch) - }() - - first := true - for { - select { - case metric := <-ch: - pb := &dto.Metric{} - metric.Write(pb) - if pb.GetSummary() == nil { - continue - } - if len(pb.GetSummary().Quantile) != 5 { - t.Errorf("expected 4 buckets, got %d", len(pb.GetSummary().Quantile)) - } - for idx, want := range []float64{0.0, 0.25, 0.5, 0.75, 1.0} { - if *pb.GetSummary().Quantile[idx].Quantile != want { - t.Errorf("bucket #%d is off, got %f, want %f", idx, *pb.GetSummary().Quantile[idx].Quantile, want) - } - } - if first { - first = false - oldGC = *pb.GetSummary().SampleCount - oldPause = *pb.GetSummary().SampleSum - close(waitc) - continue - } - if diff := *pb.GetSummary().SampleCount - oldGC; diff != 1 { - t.Errorf("want 1 new garbage collection run, got %d", diff) - } - if diff := *pb.GetSummary().SampleSum - oldPause; diff <= 0 { - t.Errorf("want moar pause, got %f", diff) - } - return - case <-time.After(1 * time.Second): - t.Fatalf("expected collect timed out") - } - } -} |