mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-14 10:13:10 +02:00
117 lines
3.2 KiB
Go
117 lines
3.2 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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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 label_test
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import (
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"testing"
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"go.opentelemetry.io/otel/api/kv"
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"go.opentelemetry.io/otel/api/label"
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"github.com/stretchr/testify/require"
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)
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type testCase struct {
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kvs []kv.KeyValue
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encoding string
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}
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func expect(enc string, kvs ...kv.KeyValue) testCase {
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return testCase{
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kvs: kvs,
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encoding: enc,
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}
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}
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func TestSetDedup(t *testing.T) {
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cases := []testCase{
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expect("A=B", kv.String("A", "2"), kv.String("A", "B")),
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expect("A=B", kv.String("A", "2"), kv.Int("A", 1), kv.String("A", "B")),
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expect("A=B", kv.String("A", "B"), kv.String("A", "C"), kv.String("A", "D"), kv.String("A", "B")),
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expect("A=B,C=D", kv.String("A", "1"), kv.String("C", "D"), kv.String("A", "B")),
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expect("A=B,C=D", kv.String("A", "2"), kv.String("A", "B"), kv.String("C", "D")),
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expect("A=B,C=D", kv.Float64("C", 1.2), kv.String("A", "2"), kv.String("A", "B"), kv.String("C", "D")),
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expect("A=B,C=D", kv.String("C", "D"), kv.String("A", "B"), kv.String("A", "C"), kv.String("A", "D"), kv.String("A", "B")),
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expect("A=B,C=D", kv.String("A", "B"), kv.String("C", "D"), kv.String("A", "C"), kv.String("A", "D"), kv.String("A", "B")),
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expect("A=B,C=D", kv.String("A", "B"), kv.String("A", "C"), kv.String("A", "D"), kv.String("A", "B"), kv.String("C", "D")),
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}
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enc := label.DefaultEncoder()
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s2d := map[string][]label.Distinct{}
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d2s := map[label.Distinct][]string{}
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for _, tc := range cases {
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cpy := make([]kv.KeyValue, len(tc.kvs))
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copy(cpy, tc.kvs)
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sl := label.NewSet(cpy...)
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// Ensure that the input was reordered but no elements went missing.
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require.ElementsMatch(t, tc.kvs, cpy)
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str := sl.Encoded(enc)
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equ := sl.Equivalent()
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s2d[str] = append(s2d[str], equ)
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d2s[equ] = append(d2s[equ], str)
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require.Equal(t, tc.encoding, str)
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}
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for s, d := range s2d {
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// No other Distinct values are equal to this.
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for s2, d2 := range s2d {
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if s2 == s {
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continue
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}
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for _, elt := range d {
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for _, otherDistinct := range d2 {
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require.NotEqual(t, otherDistinct, elt)
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}
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}
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}
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for _, strings := range d2s {
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if strings[0] == s {
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continue
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}
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for _, otherString := range strings {
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require.NotEqual(t, otherString, s)
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}
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}
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}
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for d, s := range d2s {
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// No other Distinct values are equal to this.
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for d2, s2 := range d2s {
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if d2 == d {
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continue
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}
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for _, elt := range s {
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for _, otherDistinct := range s2 {
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require.NotEqual(t, otherDistinct, elt)
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}
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}
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}
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for _, distincts := range s2d {
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if distincts[0] == d {
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continue
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}
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for _, otherDistinct := range distincts {
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require.NotEqual(t, otherDistinct, d)
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}
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}
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}
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}
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