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105 lines
2 KiB
Go
105 lines
2 KiB
Go
// Copyright 2019 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 labels
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import (
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"testing"
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)
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func TestLabels_MatchLabels(t *testing.T) {
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labels := Labels{
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{
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Name: "__name__",
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Value: "ALERTS",
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},
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{
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Name: "alertname",
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Value: "HTTPRequestRateLow",
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},
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{
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Name: "alertstate",
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Value: "pending",
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},
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{
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Name: "instance",
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Value: "0",
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},
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{
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Name: "job",
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Value: "app-server",
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},
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{
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Name: "severity",
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Value: "critical",
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},
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}
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providedNames := []string{
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"__name__",
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"alertname",
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"alertstate",
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"instance",
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}
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got := labels.MatchLabels(true, providedNames...)
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expected := Labels{
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{
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Name: "__name__",
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Value: "ALERTS",
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},
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{
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Name: "alertname",
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Value: "HTTPRequestRateLow",
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},
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{
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Name: "alertstate",
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Value: "pending",
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},
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{
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Name: "instance",
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Value: "0",
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},
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}
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assertSlice(t, got, expected)
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// Now try with 'on' set to false.
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got = labels.MatchLabels(false, providedNames...)
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expected = Labels{
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{
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Name: "job",
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Value: "app-server",
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},
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{
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Name: "severity",
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Value: "critical",
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},
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}
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assertSlice(t, got, expected)
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}
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func assertSlice(t *testing.T, got, expected Labels) {
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if len(expected) != len(got) {
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t.Errorf("expected the length of matched label names to be %d, but got %d", len(expected), len(got))
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}
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for i, expectedLabel := range expected {
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if expectedLabel.Name != got[i].Name {
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t.Errorf("expected to get Label with name %s, but got %s instead", expectedLabel.Name, got[i].Name)
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}
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}
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}
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