vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics_test.go

   1 // Copyright (c) 2017 Uber Technologies, Inc.
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining a copy
   4 // of this software and associated documentation files (the "Software"), to deal
   5 // in the Software without restriction, including without limitation the rights
   6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 // copies of the Software, and to permit persons to whom the Software is
   8 // furnished to do so, subject to the following conditions:
   9 //
  10 // The above copyright notice and this permission notice shall be included in
  11 // all copies or substantial portions of the Software.
  12 //
  13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19 // THE SOFTWARE.
  20
  21 package rpcmetrics
  22
  23 import (
  24         "testing"
  25
  26         "github.com/stretchr/testify/assert"
  27         "github.com/uber/jaeger-lib/metrics"
  28         "github.com/uber/jaeger-lib/metrics/testutils"
  29 )
  30
  31 // E.g. tags("key", "value", "key", "value")
  32 func tags(kv ...string) map[string]string {
  33         m := make(map[string]string)
  34         for i := 0; i < len(kv)-1; i += 2 {
  35                 m[kv[i]] = kv[i+1]
  36         }
  37         return m
  38 }
  39
  40 func endpointTags(endpoint string, kv ...string) map[string]string {
  41         return tags(append([]string{"endpoint", endpoint}, kv...)...)
  42 }
  43
  44 func TestMetricsByEndpoint(t *testing.T) {
  45         met := metrics.NewLocalFactory(0)
  46         mbe := newMetricsByEndpoint(met, DefaultNameNormalizer, 2)
  47
  48         m1 := mbe.get("abc1")
  49         m2 := mbe.get("abc1")               // from cache
  50         m2a := mbe.getWithWriteLock("abc1") // from cache in double-checked lock
  51         assert.Equal(t, m1, m2)
  52         assert.Equal(t, m1, m2a)
  53
  54         m3 := mbe.get("abc3")
  55         m4 := mbe.get("overflow")
  56         m5 := mbe.get("overflow2")
  57
  58         for _, m := range []*Metrics{m1, m2, m2a, m3, m4, m5} {
  59                 m.RequestCountSuccess.Inc(1)
  60         }
  61
  62         testutils.AssertCounterMetrics(t, met,
  63                 testutils.ExpectedMetric{Name: "requests", Tags: endpointTags("abc1", "error", "false"), Value: 3},
  64                 testutils.ExpectedMetric{Name: "requests", Tags: endpointTags("abc3", "error", "false"), Value: 1},
  65                 testutils.ExpectedMetric{Name: "requests", Tags: endpointTags("other", "error", "false"), Value: 2},
  66         )
  67 }