mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-16 10:19:23 +02:00
89 lines
2.4 KiB
Go
89 lines
2.4 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 resource
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import (
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"context"
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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ottest "go.opentelemetry.io/otel/internal/internaltest"
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"go.opentelemetry.io/otel/label"
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)
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func TestDetectOnePair(t *testing.T) {
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store, err := ottest.SetEnvVariables(map[string]string{
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envVar: "key=value",
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})
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require.NoError(t, err)
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defer func() { require.NoError(t, store.Restore()) }()
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detector := &FromEnv{}
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res, err := detector.Detect(context.Background())
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require.NoError(t, err)
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assert.Equal(t, NewWithAttributes(label.String("key", "value")), res)
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}
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func TestDetectMultiPairs(t *testing.T) {
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store, err := ottest.SetEnvVariables(map[string]string{
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"x": "1",
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envVar: "key=value, k = v , a= x, a=z",
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})
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require.NoError(t, err)
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defer func() { require.NoError(t, store.Restore()) }()
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detector := &FromEnv{}
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res, err := detector.Detect(context.Background())
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require.NoError(t, err)
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assert.Equal(t, res, NewWithAttributes(
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label.String("key", "value"),
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label.String("k", "v"),
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label.String("a", "x"),
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label.String("a", "z"),
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))
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}
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func TestEmpty(t *testing.T) {
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store, err := ottest.SetEnvVariables(map[string]string{
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envVar: " ",
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})
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require.NoError(t, err)
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defer func() { require.NoError(t, store.Restore()) }()
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detector := &FromEnv{}
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res, err := detector.Detect(context.Background())
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require.NoError(t, err)
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assert.Equal(t, Empty(), res)
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}
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func TestMissingKeyError(t *testing.T) {
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store, err := ottest.SetEnvVariables(map[string]string{
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envVar: "key=value,key",
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})
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require.NoError(t, err)
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defer func() { require.NoError(t, store.Restore()) }()
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detector := &FromEnv{}
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res, err := detector.Detect(context.Background())
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assert.Error(t, err)
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assert.Equal(t, err, fmt.Errorf("%w: %v", errMissingValue, "[key]"))
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assert.Equal(t, res, NewWithAttributes(
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label.String("key", "value"),
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))
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}
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