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author | Christopher Speller <crspeller@gmail.com> | 2017-05-17 16:51:25 -0400 |
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committer | GitHub <noreply@github.com> | 2017-05-17 16:51:25 -0400 |
commit | d103ed6ca97ca5a2669f6cf5fe4b3d2a9c945f26 (patch) | |
tree | dbde13123c6add150448f7b75753ac022d862475 /vendor/github.com/armon/go-metrics/datadog/dogstatsd_test.go | |
parent | cd23b8139a9463b67e3096744321f6f4eb0ca40a (diff) | |
download | chat-d103ed6ca97ca5a2669f6cf5fe4b3d2a9c945f26.tar.gz chat-d103ed6ca97ca5a2669f6cf5fe4b3d2a9c945f26.tar.bz2 chat-d103ed6ca97ca5a2669f6cf5fe4b3d2a9c945f26.zip |
Upgrading server dependancies (#6431)
Diffstat (limited to 'vendor/github.com/armon/go-metrics/datadog/dogstatsd_test.go')
-rw-r--r-- | vendor/github.com/armon/go-metrics/datadog/dogstatsd_test.go | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/vendor/github.com/armon/go-metrics/datadog/dogstatsd_test.go b/vendor/github.com/armon/go-metrics/datadog/dogstatsd_test.go new file mode 100644 index 000000000..0ec51e3f1 --- /dev/null +++ b/vendor/github.com/armon/go-metrics/datadog/dogstatsd_test.go @@ -0,0 +1,147 @@ +package datadog + +import ( + "fmt" + "net" + "reflect" + "testing" +) + +var EmptyTags []string + +const ( + DogStatsdAddr = "127.0.0.1:7254" + HostnameEnabled = true + HostnameDisabled = false + TestHostname = "test_hostname" +) + +func MockGetHostname() string { + return TestHostname +} + +var ParseKeyTests = []struct { + KeyToParse []string + Tags []string + PropagateHostname bool + ExpectedKey []string + ExpectedTags []string +}{ + {[]string{"a", MockGetHostname(), "b", "c"}, EmptyTags, HostnameDisabled, []string{"a", "b", "c"}, EmptyTags}, + {[]string{"a", "b", "c"}, EmptyTags, HostnameDisabled, []string{"a", "b", "c"}, EmptyTags}, + {[]string{"a", "b", "c"}, EmptyTags, HostnameEnabled, []string{"a", "b", "c"}, []string{fmt.Sprintf("host:%s", MockGetHostname())}}, +} + +var FlattenKeyTests = []struct { + KeyToFlatten []string + Expected string +}{ + {[]string{"a", "b", "c"}, "a.b.c"}, + {[]string{"spaces must", "flatten", "to", "underscores"}, "spaces_must.flatten.to.underscores"}, +} + +var MetricSinkTests = []struct { + Method string + Metric []string + Value interface{} + Tags []string + PropagateHostname bool + Expected string +}{ + {"SetGauge", []string{"foo", "bar"}, float32(42), EmptyTags, HostnameDisabled, "foo.bar:42.000000|g"}, + {"SetGauge", []string{"foo", "bar", "baz"}, float32(42), EmptyTags, HostnameDisabled, "foo.bar.baz:42.000000|g"}, + {"AddSample", []string{"sample", "thing"}, float32(4), EmptyTags, HostnameDisabled, "sample.thing:4.000000|ms"}, + {"IncrCounter", []string{"count", "me"}, float32(3), EmptyTags, HostnameDisabled, "count.me:3|c"}, + + {"SetGauge", []string{"foo", "baz"}, float32(42), []string{"my_tag:my_value"}, HostnameDisabled, "foo.baz:42.000000|g|#my_tag:my_value"}, + {"SetGauge", []string{"foo", "bar"}, float32(42), []string{"my_tag:my_value", "other_tag:other_value"}, HostnameDisabled, "foo.bar:42.000000|g|#my_tag:my_value,other_tag:other_value"}, + {"SetGauge", []string{"foo", "bar"}, float32(42), []string{"my_tag:my_value", "other_tag:other_value"}, HostnameEnabled, "foo.bar:42.000000|g|#my_tag:my_value,other_tag:other_value,host:test_hostname"}, +} + +func mockNewDogStatsdSink(addr string, tags []string, tagWithHostname bool) *DogStatsdSink { + dog, _ := NewDogStatsdSink(addr, MockGetHostname()) + dog.SetTags(tags) + if tagWithHostname { + dog.EnableHostNamePropagation() + } + + return dog +} + +func setupTestServerAndBuffer(t *testing.T) (*net.UDPConn, []byte) { + udpAddr, err := net.ResolveUDPAddr("udp", DogStatsdAddr) + if err != nil { + t.Fatal(err) + } + server, err := net.ListenUDP("udp", udpAddr) + if err != nil { + t.Fatal(err) + } + return server, make([]byte, 1024) +} + +func TestParseKey(t *testing.T) { + for _, tt := range ParseKeyTests { + dog := mockNewDogStatsdSink(DogStatsdAddr, tt.Tags, tt.PropagateHostname) + key, tags := dog.parseKey(tt.KeyToParse) + + if !reflect.DeepEqual(key, tt.ExpectedKey) { + t.Fatalf("Key Parsing failed for %v", tt.KeyToParse) + } + + if !reflect.DeepEqual(tags, tt.ExpectedTags) { + t.Fatalf("Tag Parsing Failed for %v", tt.KeyToParse) + } + } +} + +func TestFlattenKey(t *testing.T) { + dog := mockNewDogStatsdSink(DogStatsdAddr, EmptyTags, HostnameDisabled) + for _, tt := range FlattenKeyTests { + if !reflect.DeepEqual(dog.flattenKey(tt.KeyToFlatten), tt.Expected) { + t.Fatalf("Flattening %v failed", tt.KeyToFlatten) + } + } +} + +func TestMetricSink(t *testing.T) { + server, buf := setupTestServerAndBuffer(t) + defer server.Close() + + for _, tt := range MetricSinkTests { + dog := mockNewDogStatsdSink(DogStatsdAddr, tt.Tags, tt.PropagateHostname) + method := reflect.ValueOf(dog).MethodByName(tt.Method) + method.Call([]reflect.Value{ + reflect.ValueOf(tt.Metric), + reflect.ValueOf(tt.Value)}) + assertServerMatchesExpected(t, server, buf, tt.Expected) + } +} + +func TestTaggableMetrics(t *testing.T) { + server, buf := setupTestServerAndBuffer(t) + defer server.Close() + + dog := mockNewDogStatsdSink(DogStatsdAddr, EmptyTags, HostnameDisabled) + + dog.AddSampleWithTags([]string{"sample", "thing"}, float32(4), []string{"tagkey:tagvalue"}) + assertServerMatchesExpected(t, server, buf, "sample.thing:4.000000|ms|#tagkey:tagvalue") + + dog.SetGaugeWithTags([]string{"sample", "thing"}, float32(4), []string{"tagkey:tagvalue"}) + assertServerMatchesExpected(t, server, buf, "sample.thing:4.000000|g|#tagkey:tagvalue") + + dog.IncrCounterWithTags([]string{"sample", "thing"}, float32(4), []string{"tagkey:tagvalue"}) + assertServerMatchesExpected(t, server, buf, "sample.thing:4|c|#tagkey:tagvalue") + + dog = mockNewDogStatsdSink(DogStatsdAddr, []string{"global"}, HostnameEnabled) // with hostname, global tags + dog.IncrCounterWithTags([]string{"sample", "thing"}, float32(4), []string{"tagkey:tagvalue"}) + assertServerMatchesExpected(t, server, buf, "sample.thing:4|c|#global,tagkey:tagvalue,host:test_hostname") +} + +func assertServerMatchesExpected(t *testing.T, server *net.UDPConn, buf []byte, expected string) { + n, _ := server.Read(buf) + msg := buf[:n] + if string(msg) != expected { + t.Fatalf("Line %s does not match expected: %s", string(msg), expected) + } +} |