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opentelemetry-go/sdk/trace/provider_test.go

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// 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 trace
import (
"context"
"errors"
"testing"
"github.com/stretchr/testify/assert"
"go.opentelemetry.io/otel/trace"
)
type basicSpanProcesor struct {
running bool
injectShutdownError error
}
func (t *basicSpanProcesor) Shutdown(context.Context) error {
t.running = false
return t.injectShutdownError
}
func (t *basicSpanProcesor) OnStart(context.Context, ReadWriteSpan) {}
func (t *basicSpanProcesor) OnEnd(ReadOnlySpan) {}
func (t *basicSpanProcesor) ForceFlush(context.Context) error {
return nil
}
func TestShutdownTraceProvider(t *testing.T) {
stp := NewTracerProvider()
sp := &basicSpanProcesor{}
stp.RegisterSpanProcessor(sp)
sp.running = true
_ = stp.Shutdown(context.Background())
if sp.running != false {
t.Errorf("Error shutdown basicSpanProcesor\n")
}
}
func TestFailedProcessorShutdown(t *testing.T) {
stp := NewTracerProvider()
spErr := errors.New("basic span processor shutdown failure")
sp := &basicSpanProcesor{
running: true,
injectShutdownError: spErr,
}
stp.RegisterSpanProcessor(sp)
err := stp.Shutdown(context.Background())
assert.Error(t, err)
assert.Equal(t, err, spErr)
}
func TestFailedProcessorShutdownInUnregister(t *testing.T) {
handler.Reset()
stp := NewTracerProvider()
spErr := errors.New("basic span processor shutdown failure")
sp := &basicSpanProcesor{
running: true,
injectShutdownError: spErr,
}
stp.RegisterSpanProcessor(sp)
stp.UnregisterSpanProcessor(sp)
assert.Contains(t, handler.errs, spErr)
err := stp.Shutdown(context.Background())
assert.NoError(t, err)
}
func TestSchemaURL(t *testing.T) {
stp := NewTracerProvider()
schemaURL := "https://opentelemetry.io/schemas/1.2.0"
tracerIface := stp.Tracer("tracername", trace.WithSchemaURL(schemaURL))
// Verify that the SchemaURL of the constructed Tracer is correctly populated.
tracerStruct := tracerIface.(*tracer)
assert.EqualValues(t, schemaURL, tracerStruct.instrumentationLibrary.SchemaURL)
}