zlog/pkgerrors/stacktrace_test.go

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// +build !binary_log
package pkgerrors
import (
"bytes"
"regexp"
"testing"
"github.com/pkg/errors"
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"tuxpa.in/a/zlog"
)
func TestLogStack(t *testing.T) {
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zlog.ErrorStackMarshaler = MarshalStack
out := &bytes.Buffer{}
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log := zlog.New(out)
err := errors.Wrap(errors.New("error message"), "from error")
log.Log().Stack().Err(err).Msg("")
got := out.String()
want := `\{"stack":\[\{"func":"TestLogStack","line":"20","source":"stacktrace_test.go"\},.*\],"error":"from error: error message"\}\n`
if ok, _ := regexp.MatchString(want, got); !ok {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
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func TestLogStackFromContext(t *testing.T) {
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zlog.ErrorStackMarshaler = MarshalStack
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out := &bytes.Buffer{}
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log := zlog.New(out).With().Stack().Logger() // calling Stack() on log context instead of event
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err := errors.Wrap(errors.New("error message"), "from error")
log.Log().Err(err).Msg("") // not explicitly calling Stack()
got := out.String()
want := `\{"stack":\[\{"func":"TestLogStackFromContext","line":"36","source":"stacktrace_test.go"\},.*\],"error":"from error: error message"\}\n`
if ok, _ := regexp.MatchString(want, got); !ok {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func BenchmarkLogStack(b *testing.B) {
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zlog.ErrorStackMarshaler = MarshalStack
out := &bytes.Buffer{}
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log := zlog.New(out)
err := errors.Wrap(errors.New("error message"), "from error")
b.ReportAllocs()
for i := 0; i < b.N; i++ {
log.Log().Stack().Err(err).Msg("")
out.Reset()
}
}