131 lines
2.9 KiB
Go
131 lines
2.9 KiB
Go
// Copyright 2013 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 model
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import "testing"
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func testMetric(t testing.TB) {
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var scenarios = []struct {
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input Metric
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fingerprint Fingerprint
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fastFingerprint Fingerprint
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}{
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{
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input: Metric{},
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fingerprint: 14695981039346656037,
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fastFingerprint: 14695981039346656037,
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},
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{
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input: Metric{
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"first_name": "electro",
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"occupation": "robot",
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"manufacturer": "westinghouse",
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},
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fingerprint: 5911716720268894962,
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fastFingerprint: 11310079640881077873,
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},
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{
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input: Metric{
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"x": "y",
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},
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fingerprint: 8241431561484471700,
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fastFingerprint: 13948396922932177635,
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},
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{
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input: Metric{
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"a": "bb",
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"b": "c",
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},
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fingerprint: 3016285359649981711,
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fastFingerprint: 3198632812309449502,
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},
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{
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input: Metric{
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"a": "b",
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"bb": "c",
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},
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fingerprint: 7122421792099404749,
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fastFingerprint: 5774953389407657638,
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},
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}
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for i, scenario := range scenarios {
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if scenario.fingerprint != scenario.input.Fingerprint() {
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t.Errorf("%d. expected %d, got %d", i, scenario.fingerprint, scenario.input.Fingerprint())
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}
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if scenario.fastFingerprint != scenario.input.FastFingerprint() {
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t.Errorf("%d. expected %d, got %d", i, scenario.fastFingerprint, scenario.input.FastFingerprint())
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}
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}
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}
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func TestMetric(t *testing.T) {
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testMetric(t)
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}
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func BenchmarkMetric(b *testing.B) {
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for i := 0; i < b.N; i++ {
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testMetric(b)
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}
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}
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func TestCOWMetric(t *testing.T) {
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testMetric := Metric{
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"to_delete": "test1",
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"to_change": "test2",
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}
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scenarios := []struct {
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fn func(*COWMetric)
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out Metric
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}{
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{
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fn: func(cm *COWMetric) {
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cm.Delete("to_delete")
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},
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out: Metric{
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"to_change": "test2",
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},
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},
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{
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fn: func(cm *COWMetric) {
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cm.Set("to_change", "changed")
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},
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out: Metric{
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"to_delete": "test1",
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"to_change": "changed",
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},
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},
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}
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for i, s := range scenarios {
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orig := testMetric.Clone()
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cm := &COWMetric{
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Metric: orig,
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}
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s.fn(cm)
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// Test that the original metric was not modified.
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if !orig.Equal(testMetric) {
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t.Fatalf("%d. original metric changed; expected %v, got %v", i, testMetric, orig)
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}
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// Test that the new metric has the right changes.
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if !cm.Metric.Equal(s.out) {
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t.Fatalf("%d. copied metric doesn't contain expected changes; expected %v, got %v", i, s.out, cm.Metric)
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}
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}
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}
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