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opentelemetry-go/sdk/resource/builtin_test.go
Joshua MacDonald 187adeb251
Change resource.New() to use functional options; add builtin attributes for (host.*, telemetry.sdk.*) (#1235)
* Add a resource.Configure() with functional options

* Add a changelog

* Add tests for builtin resources

* Rename to WithoutBuiltin

* Add new test; restore environment after tests

* Apply feedback

* Apply suggestions from code review

❤️

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* Comment edits

* Rename New, former method NewFromAttributes

* NewFromAttributes->NewWithAttributes

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2020-10-31 11:16:55 -07:00

60 lines
1.6 KiB
Go

// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package resource_test
import (
"context"
"errors"
"fmt"
"testing"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/label"
"go.opentelemetry.io/otel/sdk/resource"
)
func TestBuiltinStringDetector(t *testing.T) {
E := fmt.Errorf("no K")
res, err := resource.StringDetector(label.Key("K"), func() (string, error) {
return "", E
}).Detect(context.Background())
require.True(t, errors.Is(err, E))
require.NotEqual(t, E, err)
require.Nil(t, res)
}
func TestBuiltinStringConfig(t *testing.T) {
res, err := resource.New(
context.Background(),
resource.WithoutBuiltin(),
resource.WithAttributes(label.String("A", "B")),
resource.WithDetectors(resource.StringDetector(label.Key("K"), func() (string, error) {
return "", fmt.Errorf("K-IS-MISSING")
})),
)
require.Error(t, err)
require.Contains(t, err.Error(), "K-IS-MISSING")
require.NotNil(t, res)
m := map[string]string{}
for _, kv := range res.Attributes() {
m[string(kv.Key)] = kv.Value.Emit()
}
require.EqualValues(t, map[string]string{
"A": "B",
}, m)
}