mirror of https://github.com/prometheus/prometheus
74 lines
2.4 KiB
Go
74 lines
2.4 KiB
Go
// Copyright 2014 The Prometheus Authors
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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 metric
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import (
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"math/rand"
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"reflect"
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"sort"
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"testing"
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"github.com/prometheus/common/model"
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)
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func TestAnchoredMatcher(t *testing.T) {
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m, err := NewLabelMatcher(RegexMatch, "", "foo|bar|baz")
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if err != nil {
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t.Fatal(err)
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}
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if !m.Match("foo") {
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t.Errorf("Expected match for %q but got none", "foo")
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}
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if m.Match("fooo") {
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t.Errorf("Unexpected match for %q", "fooo")
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}
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}
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func TestLabelMatchersSort(t *testing.T) {
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// Line up Matchers in expected order:
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want := LabelMatchers{
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mustNewLabelMatcher(Equal, model.InstanceLabel, "not empty"),
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mustNewLabelMatcher(Equal, model.MetricNameLabel, "a:recording:rule"),
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mustNewLabelMatcher(Equal, model.MetricNameLabel, "up"),
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mustNewLabelMatcher(Equal, "nothing_special but much longer", "not empty"),
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mustNewLabelMatcher(Equal, "nothing_special", "not empty but longer"),
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mustNewLabelMatcher(Equal, "nothing_special", "not empty"),
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mustNewLabelMatcher(Equal, model.JobLabel, "not empty"),
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mustNewLabelMatcher(Equal, model.BucketLabel, "not empty"),
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mustNewLabelMatcher(RegexMatch, "irrelevant", "does not match empty string and is longer"),
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mustNewLabelMatcher(RegexMatch, "irrelevant", "does not match empty string"),
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mustNewLabelMatcher(RegexNoMatch, "irrelevant", "(matches empty string)?"),
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mustNewLabelMatcher(RegexNoMatch, "irrelevant", "(matches empty string with a longer expression)?"),
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mustNewLabelMatcher(NotEqual, "irrelevant", ""),
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mustNewLabelMatcher(Equal, "irrelevant", ""),
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}
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got := make(LabelMatchers, len(want))
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for i, j := range rand.Perm(len(want)) {
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got[i] = want[j]
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}
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sort.Sort(got)
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if !reflect.DeepEqual(want, got) {
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t.Errorf("unexpected sorting of matchers, got %v, want %v", got, want)
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}
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}
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func mustNewLabelMatcher(mt MatchType, name model.LabelName, val model.LabelValue) *LabelMatcher {
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m, err := NewLabelMatcher(mt, name, val)
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if err != nil {
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panic(err)
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}
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return m
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}
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