diff options
Diffstat (limited to 'vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go')
| -rw-r--r-- | vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go b/vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go deleted file mode 100644 index a2e3c1416..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go +++ /dev/null @@ -1,202 +0,0 @@ -// Copyright 2014 The Prometheus 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 prometheus - -import ( - "math" - "math/rand" - "sync" - "testing" - "testing/quick" - "time" - - dto "github.com/prometheus/client_model/go" -) - -func listenGaugeStream(vals, result chan float64, done chan struct{}) { - var sum float64 -outer: - for { - select { - case <-done: - close(vals) - for v := range vals { - sum += v - } - break outer - case v := <-vals: - sum += v - } - } - result <- sum - close(result) -} - -func TestGaugeConcurrency(t *testing.T) { - it := func(n uint32) bool { - mutations := int(n % 10000) - concLevel := int(n%15 + 1) - - var start, end sync.WaitGroup - start.Add(1) - end.Add(concLevel) - - sStream := make(chan float64, mutations*concLevel) - result := make(chan float64) - done := make(chan struct{}) - - go listenGaugeStream(sStream, result, done) - go func() { - end.Wait() - close(done) - }() - - gge := NewGauge(GaugeOpts{ - Name: "test_gauge", - Help: "no help can be found here", - }) - for i := 0; i < concLevel; i++ { - vals := make([]float64, mutations) - for j := 0; j < mutations; j++ { - vals[j] = rand.Float64() - 0.5 - } - - go func(vals []float64) { - start.Wait() - for _, v := range vals { - sStream <- v - gge.Add(v) - } - end.Done() - }(vals) - } - start.Done() - - if expected, got := <-result, math.Float64frombits(gge.(*gauge).valBits); math.Abs(expected-got) > 0.000001 { - t.Fatalf("expected approx. %f, got %f", expected, got) - return false - } - return true - } - - if err := quick.Check(it, nil); err != nil { - t.Fatal(err) - } -} - -func TestGaugeVecConcurrency(t *testing.T) { - it := func(n uint32) bool { - mutations := int(n % 10000) - concLevel := int(n%15 + 1) - vecLength := int(n%5 + 1) - - var start, end sync.WaitGroup - start.Add(1) - end.Add(concLevel) - - sStreams := make([]chan float64, vecLength) - results := make([]chan float64, vecLength) - done := make(chan struct{}) - - for i := 0; i < vecLength; i++ { - sStreams[i] = make(chan float64, mutations*concLevel) - results[i] = make(chan float64) - go listenGaugeStream(sStreams[i], results[i], done) - } - - go func() { - end.Wait() - close(done) - }() - - gge := NewGaugeVec( - GaugeOpts{ - Name: "test_gauge", - Help: "no help can be found here", - }, - []string{"label"}, - ) - for i := 0; i < concLevel; i++ { - vals := make([]float64, mutations) - pick := make([]int, mutations) - for j := 0; j < mutations; j++ { - vals[j] = rand.Float64() - 0.5 - pick[j] = rand.Intn(vecLength) - } - - go func(vals []float64) { - start.Wait() - for i, v := range vals { - sStreams[pick[i]] <- v - gge.WithLabelValues(string('A' + pick[i])).Add(v) - } - end.Done() - }(vals) - } - start.Done() - - for i := range sStreams { - if expected, got := <-results[i], math.Float64frombits(gge.WithLabelValues(string('A'+i)).(*gauge).valBits); math.Abs(expected-got) > 0.000001 { - t.Fatalf("expected approx. %f, got %f", expected, got) - return false - } - } - return true - } - - if err := quick.Check(it, nil); err != nil { - t.Fatal(err) - } -} - -func TestGaugeFunc(t *testing.T) { - gf := NewGaugeFunc( - GaugeOpts{ - Name: "test_name", - Help: "test help", - ConstLabels: Labels{"a": "1", "b": "2"}, - }, - func() float64 { return 3.1415 }, - ) - - if expected, got := `Desc{fqName: "test_name", help: "test help", constLabels: {a="1",b="2"}, variableLabels: []}`, gf.Desc().String(); expected != got { - t.Errorf("expected %q, got %q", expected, got) - } - - m := &dto.Metric{} - gf.Write(m) - - if expected, got := `label:<name:"a" value:"1" > label:<name:"b" value:"2" > gauge:<value:3.1415 > `, m.String(); expected != got { - t.Errorf("expected %q, got %q", expected, got) - } -} - -func TestGaugeSetCurrentTime(t *testing.T) { - g := NewGauge(GaugeOpts{ - Name: "test_name", - Help: "test help", - }) - g.SetToCurrentTime() - unixTime := float64(time.Now().Unix()) - - m := &dto.Metric{} - g.Write(m) - - delta := unixTime - m.GetGauge().GetValue() - // This is just a smoke test to make sure SetToCurrentTime is not - // totally off. Tests with current time involved are hard... - if math.Abs(delta) > 5 { - t.Errorf("Gauge set to current time deviates from current time by more than 5s, delta is %f seconds", delta) - } -} |