forked from mirror/client_golang
66 lines
1.2 KiB
Go
66 lines
1.2 KiB
Go
// Copyright (c) 2013, Prometheus Team
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// All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package prometheus
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import (
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"runtime"
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"testing"
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)
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func testLabelsToSignature(t tester) {
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var scenarios = []struct {
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in map[string]string
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out uint64
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}{
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{
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in: map[string]string{},
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out: 14695981039346656037,
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},
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{
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in: map[string]string{"name": "garland, briggs", "fear": "love is not enough"},
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out: 15753083015552662396,
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},
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}
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for i, scenario := range scenarios {
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actual := labelsToSignature(scenario.in)
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if actual != scenario.out {
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t.Errorf("%d. expected %d, got %d", i, scenario.out, actual)
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}
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}
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}
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func TestLabelToSignature(t *testing.T) {
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testLabelsToSignature(t)
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}
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func TestEmptyLabelSignature(t *testing.T) {
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input := []map[string]string{nil, {}}
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var ms runtime.MemStats
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runtime.ReadMemStats(&ms)
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alloc := ms.Alloc
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for _, labels := range input {
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labelsToSignature(labels)
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}
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runtime.ReadMemStats(&ms)
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if got := ms.Alloc; alloc != got {
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t.Fatal("expected labelsToSignature with empty labels not to perform allocations")
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}
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}
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func BenchmarkLabelToSignature(b *testing.B) {
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for i := 0; i < b.N; i++ {
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testLabelsToSignature(b)
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}
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}
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