micro/tracer/tracer_test.go

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package tracer
import (
"bytes"
"context"
"strings"
"testing"
"go.unistack.org/micro/v4/logger"
)
func TestLoggerWithTracer(t *testing.T) {
ctx := context.TODO()
buf := bytes.NewBuffer(nil)
if err := logger.Init(logger.WithOutput(buf)); err != nil {
t.Fatal(err)
}
var span Span
ctx, span = DefaultTracer.Start(ctx, "test")
logger.Info(ctx, "msg")
if !strings.Contains(buf.String(), span.TraceID()) {
t.Fatalf("log does not contains tracer id")
}
}