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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
Eundoo Song 4d0101ae12
Rename test packages (#1049)
* Rename processor/test to processortest

* Rename controller/test to controllertest

* Rename testharness to apitest

* Rename testtrace to tracetest
2020-08-10 13:35:15 -07:00

64 lines
1.9 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/tracetest"
)
func TestTraceWithSDK(t *testing.T) {
internal.ResetForTest()
ctx := context.Background()
gtp := global.TraceProvider()
tracer1 := gtp.Tracer("pre")
// This is started before an SDK was registered and should be dropped.
_, span1 := tracer1.Start(ctx, "span1")
sr := new(tracetest.StandardSpanRecorder)
tp := tracetest.NewProvider(tracetest.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()
// 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()
filterNames := func(spans []*tracetest.Span) []string {
names := make([]string, len(spans))
for i := range spans {
names[i] = spans[i].Name()
}
return names
}
expected := []string{"span2", "span3"}
assert.ElementsMatch(t, expected, filterNames(sr.Started()))
assert.ElementsMatch(t, expected, filterNames(sr.Completed()))
}