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Export labeled metrics for real from /metric-export API.
Signed-off-by: Vishnu kannan <vishnuk@google.com>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,177 @@ | ||
| // Copyright 2015 Google Inc. All Rights Reserved. | ||
| // | ||
| // 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 v1 | ||
|
|
||
| import ( | ||
| "testing" | ||
| "time" | ||
|
|
||
| fuzz "github.com/google/gofuzz" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
|
|
||
| "k8s.io/heapster/metrics/core" | ||
| metricsink "k8s.io/heapster/metrics/sinks/metric" | ||
| ) | ||
|
|
||
| func TestApiFactory(t *testing.T) { | ||
| metricSink := metricsink.MetricSink{} | ||
| api := NewApi(false, &metricSink) | ||
| as := assert.New(t) | ||
| for _, metric := range core.StandardMetrics { | ||
| val, exists := api.gkeMetrics[metric.Name] | ||
| as.True(exists) | ||
| as.Equal(val, metric.MetricDescriptor) | ||
| } | ||
| for _, metric := range core.LabeledMetrics { | ||
| val, exists := api.gkeMetrics[metric.Name] | ||
| as.True(exists) | ||
| as.Equal(val, metric.MetricDescriptor) | ||
| } | ||
|
|
||
| for _, metric := range core.LabeledMetrics { | ||
| val, exists := api.gkeMetrics[metric.Name] | ||
| as.True(exists) | ||
| as.Equal(val, metric.MetricDescriptor) | ||
| } | ||
| labels := append(core.CommonLabels(), core.ContainerLabels()...) | ||
| labels = append(labels, core.PodLabels()...) | ||
| for _, label := range labels { | ||
| val, exists := api.gkeLabels[label.Key] | ||
| as.True(exists) | ||
| as.Equal(val, label) | ||
| } | ||
| } | ||
|
|
||
| func TestFuzzInput(t *testing.T) { | ||
| api := NewApi(false, nil) | ||
| data := []*core.DataBatch{} | ||
| fuzz.New().NilChance(0).Fuzz(&data) | ||
| _ = api.processMetricsRequest(data) | ||
| } | ||
|
|
||
| func generateMetricSet(objectType string, labels []core.LabelDescriptor) *core.MetricSet { | ||
| ms := &core.MetricSet{ | ||
| CreateTime: time.Now().Add(-time.Hour), | ||
| ScrapeTime: time.Now(), | ||
| Labels: make(map[string]string), | ||
| MetricValues: make(map[string]core.MetricValue), | ||
| LabeledMetrics: make([]core.LabeledMetric, len(labels)), | ||
| } | ||
| // Add all necessary labels | ||
| for _, label := range labels { | ||
| ms.Labels[label.Key] = "test-value" | ||
| } | ||
| ms.Labels[core.LabelMetricSetType.Key] = objectType | ||
| // Add all standard metrics | ||
| for _, metric := range core.StandardMetrics { | ||
| ms.MetricValues[metric.Name] = core.MetricValue{ | ||
| MetricType: core.MetricCumulative, | ||
| ValueType: core.ValueInt64, | ||
| IntValue: -1, | ||
| } | ||
| } | ||
| // Add all labeled metrics | ||
| for _, metric := range core.LabeledMetrics { | ||
| lm := core.LabeledMetric{ | ||
| Name: metric.Name, | ||
| MetricValue: core.MetricValue{ | ||
| MetricType: core.MetricCumulative, | ||
| ValueType: core.ValueInt64, | ||
| IntValue: -1, | ||
| }, | ||
| Labels: make(map[string]string), | ||
| } | ||
| for _, label := range core.MetricLabels() { | ||
| lm.Labels[label.Key] = "test-value" | ||
| } | ||
| ms.LabeledMetrics = append(ms.LabeledMetrics, lm) | ||
| } | ||
| return ms | ||
| } | ||
|
|
||
| func TestRealInput(t *testing.T) { | ||
| api := NewApi(false, nil) | ||
| dataBatch := []*core.DataBatch{ | ||
| { | ||
| Timestamp: time.Now(), | ||
| MetricSets: map[string]*core.MetricSet{}, | ||
| }, | ||
| { | ||
| Timestamp: time.Now().Add(-time.Minute), | ||
| MetricSets: map[string]*core.MetricSet{}, | ||
| }, | ||
| } | ||
| labels := append(core.CommonLabels(), core.ContainerLabels()...) | ||
| labels = append(labels, core.PodLabels()...) | ||
| for _, entry := range dataBatch { | ||
| // Add a pod, container, node, systemcontainer | ||
| entry.MetricSets[core.MetricSetTypePod] = generateMetricSet(core.MetricSetTypePod, labels) | ||
| entry.MetricSets[core.MetricSetTypeNode] = generateMetricSet(core.MetricSetTypeNode, labels) | ||
| entry.MetricSets[core.MetricSetTypePodContainer] = generateMetricSet(core.MetricSetTypePodContainer, labels) | ||
| entry.MetricSets[core.MetricSetTypeSystemContainer] = generateMetricSet(core.MetricSetTypeSystemContainer, labels) | ||
| } | ||
| ts := api.processMetricsRequest(dataBatch) | ||
| type expectation struct { | ||
| count int | ||
| extraLabels bool | ||
| } | ||
| expectedMetrics := make(map[string]*expectation) | ||
| for _, metric := range core.StandardMetrics { | ||
| expectedMetrics[metric.Name] = &expectation{ | ||
| count: 4, | ||
| extraLabels: false, | ||
| } | ||
| } | ||
| for _, metric := range core.LabeledMetrics { | ||
| expectedMetrics[metric.Name] = &expectation{ | ||
| count: 4, | ||
| extraLabels: true, | ||
| } | ||
| } | ||
| as := assert.New(t) | ||
| for _, elem := range ts { | ||
| // validate labels | ||
| for _, label := range labels { | ||
| val, exists := elem.Labels[label.Key] | ||
| as.True(exists, "%q label does not exist", label.Key) | ||
| if label.Key == core.LabelMetricSetType.Key { | ||
| continue | ||
| } | ||
| if label.Key == core.LabelContainerName.Key && val != "machine" { | ||
| as.Equal(val, "test-value", "%q label's value is %q, expected 'test-value'", label.Key, val) | ||
| } | ||
| } | ||
| for mname, points := range elem.Metrics { | ||
| ex := expectedMetrics[mname] | ||
| require.NotNil(t, ex) | ||
| as.NotEqual(ex, 0) | ||
| ex.count-- | ||
| for _, point := range points { | ||
| as.Equal(point.Value, -1) | ||
| if !ex.extraLabels { | ||
| continue | ||
| } | ||
| as.Equal(len(core.MetricLabels()), len(point.Labels)) | ||
| for _, label := range core.MetricLabels() { | ||
| val, exists := point.Labels[label.Key] | ||
| as.True(exists, "expected label %q to be found - %+v", label.Key, point.Labels) | ||
| as.Equal(val, "test-value") | ||
| } | ||
| } | ||
| } | ||
|
|
||
| } | ||
| } |
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