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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package global
import (
"bytes"
"errors"
"log"
"os"
"strings"
"testing"
)
func TestErrDelegator(t *testing.T) {
buf := new(bytes.Buffer)
log.Default().SetOutput(buf)
t.Cleanup(func() { log.Default().SetOutput(os.Stderr) })
e := &ErrDelegator{}
err := errors.New("testing")
e.Handle(err)
got := buf.String()
if !strings.Contains(got, err.Error()) {
t.Error("default handler did not log")
}
buf.Reset()
var gotErr error
e.setDelegate(fnErrHandler(func(e error) { gotErr = e }))
e.Handle(err)
if buf.String() != "" {
t.Error("delegate not set")
} else if !errors.Is(gotErr, err) {
t.Error("error not passed to delegate")
}
}
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