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mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-16 10:19:23 +02:00
opentelemetry-go/api/global/internal/trace_test.go
Tyler Yahn 2833212bd9
Decouple API from SDK (#977)
* Remove SDK from othttp instrumentation

* Remove dependency on SDK in api/kv pkg

Benchmark the kv package not the SDK here.

* Update api/global benchmarks

Move SDK related tests to SDK where applicable

* Add internal testing SDK implementation

To be used by the API for testing so it does not depend on the actual
SDK.

* Update api/global/internal to use internal/sdk

* Fix lint on sdk/metric benchmark

* Lint internal/sdk

* Merge internal/sdk into api/trace/testtrace

* Update Changelog
2020-07-28 10:47:08 -07:00

74 lines
2.5 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 internal_test
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"go.opentelemetry.io/otel/api/global"
"go.opentelemetry.io/otel/api/global/internal"
"go.opentelemetry.io/otel/api/trace/testtrace"
)
func TestTraceWithSDK(t *testing.T) {
internal.ResetForTest()
ctx := context.Background()
gtp := global.TraceProvider()
tracer1 := gtp.Tracer("pre")
_, span1 := tracer1.Start(ctx, "span1")
// This should be dropped.
if err := tracer1.WithSpan(ctx, "withSpan1", func(context.Context) error { return nil }); err != nil {
t.Errorf("failed to wrap function with span prior to initialization: %v", err)
}
sr := new(testtrace.StandardSpanRecorder)
tp := testtrace.NewProvider(testtrace.WithSpanRecorder(sr))
global.SetTraceProvider(tp)
// This span was started before initialization, it is expected to be dropped.
span1.End()
// The existing Tracer should have been configured to now use the configured SDK.
_, span2 := tracer1.Start(ctx, "span2")
span2.End()
if err := tracer1.WithSpan(ctx, "withSpan2", func(context.Context) error { return nil }); err != nil {
t.Errorf("failed to wrap function with span post initialization: %v", err)
}
// The global trace Provider should now create Tracers that also use the newly configured SDK.
tracer2 := gtp.Tracer("post")
_, span3 := tracer2.Start(ctx, "span3")
span3.End()
if err := tracer2.WithSpan(ctx, "withSpan3", func(context.Context) error { return nil }); err != nil {
t.Errorf("failed to wrap function with span post initialization with new tracer: %v", err)
}
filterNames := func(spans []*testtrace.Span) []string {
names := make([]string, len(spans))
for i := range spans {
names[i] = spans[i].Name()
}
return names
}
expected := []string{"span2", "withSpan2", "span3", "withSpan3"}
assert.ElementsMatch(t, expected, filterNames(sr.Started()))
assert.ElementsMatch(t, expected, filterNames(sr.Completed()))
}