forked from mirror/client_golang
133 lines
3.9 KiB
Go
133 lines
3.9 KiB
Go
// Copyright 2013 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package extraction
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import (
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"strings"
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"testing"
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"time"
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"github.com/prometheus/client_golang/model"
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)
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var testTime = time.Now()
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type metricFamilyProcessorScenario struct {
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in string
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out []*Result
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}
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func (s *metricFamilyProcessorScenario) test(t *testing.T, set int) {
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i := strings.NewReader(s.in)
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chanSize := 1
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if len(s.out) > 0 {
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chanSize = len(s.out) * 3
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}
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r := make(chan *Result, chanSize)
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o := &ProcessOptions{
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Timestamp: testTime,
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BaseLabels: model.LabelSet{"base": "label"},
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}
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err := MetricFamilyProcessor.ProcessSingle(i, r, o)
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if err != nil {
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t.Fatalf("%d. got error: %s", set, err)
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}
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close(r)
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actual := []*Result{}
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for e := range r {
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actual = append(actual, e)
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}
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if len(actual) != len(s.out) {
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t.Fatalf("%d. expected length %d, got %d", set, len(s.out), len(actual))
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}
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for i, expected := range s.out {
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if expected.Err != actual[i].Err {
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t.Fatalf("%d. expected err of %s, got %s", set, expected.Err, actual[i].Err)
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}
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if len(expected.Samples) != len(actual[i].Samples) {
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t.Fatalf("%d.%d expected %d samples, got %d", set, i, len(expected.Samples), len(actual[i].Samples))
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}
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for j := 0; j < len(expected.Samples); j++ {
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e := expected.Samples[j]
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a := actual[i].Samples[j]
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if !a.Equal(e) {
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t.Fatalf("%d.%d.%d expected %s sample, got %s", set, i, j, e, a)
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}
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}
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}
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}
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func TestMetricFamilyProcessor(t *testing.T) {
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scenarios := []metricFamilyProcessorScenario{
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{
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in: "",
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},
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{
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in: "\x8f\x01\n\rrequest_count\x12\x12Number of requests\x18\x00\"0\n#\n\x0fsome_label_name\x12\x10some_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00E\xc0\"6\n)\n\x12another_label_name\x12\x13another_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00U@",
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out: []*Result{
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{
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Samples: model.Samples{
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&model.Sample{
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Metric: model.Metric{"base": "label", "name": "request_count", "some_label_name": "some_label_value"},
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Value: -42,
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Timestamp: testTime,
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},
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&model.Sample{
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Metric: model.Metric{"base": "label", "name": "request_count", "another_label_name": "another_label_value"},
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Value: 84,
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Timestamp: testTime,
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},
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},
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},
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},
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},
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{
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in: "\xb9\x01\n\rrequest_count\x12\x12Number of requests\x18\x02\"O\n#\n\x0fsome_label_name\x12\x10some_label_value\"(\x1a\x12\t\xaeG\xe1z\x14\xae\xef?\x11\x00\x00\x00\x00\x00\x00E\xc0\x1a\x12\t+\x87\x16\xd9\xce\xf7\xef?\x11\x00\x00\x00\x00\x00\x00U\xc0\"A\n)\n\x12another_label_name\x12\x13another_label_value\"\x14\x1a\x12\t\x00\x00\x00\x00\x00\x00\xe0?\x11\x00\x00\x00\x00\x00\x00$@",
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out: []*Result{
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{
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Samples: model.Samples{
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&model.Sample{
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Metric: model.Metric{"base": "label", "name": "request_count", "some_label_name": "some_label_value", "quantile": "0.99"},
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Value: -42,
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Timestamp: testTime,
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},
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&model.Sample{
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Metric: model.Metric{"base": "label", "name": "request_count", "some_label_name": "some_label_value", "quantile": "0.999"},
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Value: -84,
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Timestamp: testTime,
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},
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&model.Sample{
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Metric: model.Metric{"base": "label", "name": "request_count", "another_label_name": "another_label_value", "quantile": "0.5"},
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Value: 10,
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Timestamp: testTime,
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},
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},
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},
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},
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},
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}
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for i, scenario := range scenarios {
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scenario.test(t, i)
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}
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}
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