zlog/log_test.go

327 lines
9.0 KiB
Go

package zerolog
import (
"bytes"
"errors"
"reflect"
"testing"
"time"
)
func TestLog(t *testing.T) {
t.Run("empty", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
log.Log().Msg("")
if got, want := out.String(), "{}\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
t.Run("one-field", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
log.Log().Str("foo", "bar").Msg("")
if got, want := out.String(), `{"foo":"bar"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
t.Run("two-field", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
log.Log().
Str("foo", "bar").
Int("n", 123).
Msg("")
if got, want := out.String(), `{"foo":"bar","n":123}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
}
func TestInfo(t *testing.T) {
t.Run("empty", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
log.Info().Msg("")
if got, want := out.String(), `{"level":"info"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
t.Run("one-field", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
log.Info().Str("foo", "bar").Msg("")
if got, want := out.String(), `{"level":"info","foo":"bar"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
t.Run("two-field", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
log.Info().
Str("foo", "bar").
Int("n", 123).
Msg("")
if got, want := out.String(), `{"level":"info","foo":"bar","n":123}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
}
func TestWith(t *testing.T) {
out := &bytes.Buffer{}
log := New(out).With().
Str("foo", "bar").
AnErr("some_err", nil).
Err(errors.New("some error")).
Bool("bool", true).
Int("int", 1).
Int8("int8", 2).
Int16("int16", 3).
Int32("int32", 4).
Int64("int64", 5).
Uint("uint", 6).
Uint8("uint8", 7).
Uint16("uint16", 8).
Uint32("uint32", 9).
Uint64("uint64", 10).
Float32("float32", 11).
Float64("float64", 12).
Time("time", time.Time{}).
Logger()
log.Log().Msg("")
if got, want := out.String(), `{"foo":"bar","error":"some error","bool":true,"int":1,"int8":2,"int16":3,"int32":4,"int64":5,"uint":6,"uint8":7,"uint16":8,"uint32":9,"uint64":10,"float32":11,"float64":12,"time":"0001-01-01T00:00:00Z"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func TestFieldsMap(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
log.Log().Fields(map[string]interface{}{
"nil": nil,
"string": "foo",
"bytes": []byte("bar"),
"error": errors.New("some error"),
"bool": true,
"int": int(1),
"int8": int8(2),
"int16": int16(3),
"int32": int32(4),
"int64": int64(5),
"uint": uint(6),
"uint8": uint8(7),
"uint16": uint16(8),
"uint32": uint32(9),
"uint64": uint64(10),
"float32": float32(11),
"float64": float64(12),
"dur": 1 * time.Second,
"time": time.Time{},
}).Msg("")
if got, want := out.String(), `{"bool":true,"bytes":"bar","dur":1000,"error":"some error","float32":11,"float64":12,"int":1,"int16":3,"int32":4,"int64":5,"int8":2,"nil":null,"string":"foo","time":"0001-01-01T00:00:00Z","uint":6,"uint16":8,"uint32":9,"uint64":10,"uint8":7}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func TestFields(t *testing.T) {
out := &bytes.Buffer{}
log := New(out)
now := time.Now()
log.Log().
Str("string", "foo").
Bytes("bytes", []byte("bar")).
AnErr("some_err", nil).
Err(errors.New("some error")).
Bool("bool", true).
Int("int", 1).
Int8("int8", 2).
Int16("int16", 3).
Int32("int32", 4).
Int64("int64", 5).
Uint("uint", 6).
Uint8("uint8", 7).
Uint16("uint16", 8).
Uint32("uint32", 9).
Uint64("uint64", 10).
Float32("float32", 11).
Float64("float64", 12).
Dur("dur", 1*time.Second).
Time("time", time.Time{}).
TimeDiff("diff", now, now.Add(-10*time.Second)).
Msg("")
if got, want := out.String(), `{"string":"foo","bytes":"bar","error":"some error","bool":true,"int":1,"int8":2,"int16":3,"int32":4,"int64":5,"uint":6,"uint8":7,"uint16":8,"uint32":9,"uint64":10,"float32":11,"float64":12,"dur":1000,"time":"0001-01-01T00:00:00Z","diff":10000}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func TestFieldsDisabled(t *testing.T) {
out := &bytes.Buffer{}
log := New(out).Level(InfoLevel)
now := time.Now()
log.Debug().
Str("string", "foo").
Bytes("bytes", []byte("bar")).
AnErr("some_err", nil).
Err(errors.New("some error")).
Bool("bool", true).
Int("int", 1).
Int8("int8", 2).
Int16("int16", 3).
Int32("int32", 4).
Int64("int64", 5).
Uint("uint", 6).
Uint8("uint8", 7).
Uint16("uint16", 8).
Uint32("uint32", 9).
Uint64("uint64", 10).
Float32("float32", 11).
Float64("float64", 12).
Dur("dur", 1*time.Second).
Time("time", time.Time{}).
TimeDiff("diff", now, now.Add(-10*time.Second)).
Msg("")
if got, want := out.String(), ""; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func TestMsgf(t *testing.T) {
out := &bytes.Buffer{}
New(out).Log().Msgf("one %s %.1f %d %v", "two", 3.4, 5, errors.New("six"))
if got, want := out.String(), `{"message":"one two 3.4 5 six"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func TestWithAndFieldsCombined(t *testing.T) {
out := &bytes.Buffer{}
log := New(out).With().Str("f1", "val").Str("f2", "val").Logger()
log.Log().Str("f3", "val").Msg("")
if got, want := out.String(), `{"f1":"val","f2":"val","f3":"val"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func TestLevel(t *testing.T) {
t.Run("Disabled", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out).Level(Disabled)
log.Info().Msg("test")
if got, want := out.String(), ""; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
t.Run("Info", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(out).Level(InfoLevel)
log.Info().Msg("test")
if got, want := out.String(), `{"level":"info","message":"test"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
})
}
func TestSampling(t *testing.T) {
out := &bytes.Buffer{}
log := New(out).Sample(2)
log.Log().Int("i", 1).Msg("")
log.Log().Int("i", 2).Msg("")
log.Log().Int("i", 3).Msg("")
log.Log().Int("i", 4).Msg("")
if got, want := out.String(), "{\"sample\":2,\"i\":2}\n{\"sample\":2,\"i\":4}\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
type levelWriter struct {
ops []struct {
l Level
p string
}
}
func (lw *levelWriter) Write(p []byte) (int, error) {
return len(p), nil
}
func (lw *levelWriter) WriteLevel(lvl Level, p []byte) (int, error) {
lw.ops = append(lw.ops, struct {
l Level
p string
}{lvl, string(p)})
return len(p), nil
}
func TestLevelWriter(t *testing.T) {
lw := &levelWriter{
ops: []struct {
l Level
p string
}{},
}
log := New(lw)
log.Debug().Msg("1")
log.Info().Msg("2")
log.Warn().Msg("3")
log.Error().Msg("4")
log.WithLevel(DebugLevel).Msg("5")
log.WithLevel(InfoLevel).Msg("6")
log.WithLevel(WarnLevel).Msg("7")
log.WithLevel(ErrorLevel).Msg("8")
want := []struct {
l Level
p string
}{
{DebugLevel, `{"level":"debug","message":"1"}` + "\n"},
{InfoLevel, `{"level":"info","message":"2"}` + "\n"},
{WarnLevel, `{"level":"warn","message":"3"}` + "\n"},
{ErrorLevel, `{"level":"error","message":"4"}` + "\n"},
{DebugLevel, `{"level":"debug","message":"5"}` + "\n"},
{InfoLevel, `{"level":"info","message":"6"}` + "\n"},
{WarnLevel, `{"level":"warn","message":"7"}` + "\n"},
{ErrorLevel, `{"level":"error","message":"8"}` + "\n"},
}
if got := lw.ops; !reflect.DeepEqual(got, want) {
t.Errorf("invalid ops:\ngot:\n%v\nwant:\n%v", got, want)
}
}
func TestContextTimestamp(t *testing.T) {
TimestampFunc = func() time.Time {
return time.Date(2001, time.February, 3, 4, 5, 6, 7, time.UTC)
}
defer func() {
TimestampFunc = time.Now
}()
out := &bytes.Buffer{}
log := New(out).With().Timestamp().Str("foo", "bar").Logger()
log.Log().Msg("hello world")
if got, want := out.String(), `{"time":"2001-02-03T04:05:06Z","foo":"bar","message":"hello world"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}
func TestEventTimestamp(t *testing.T) {
TimestampFunc = func() time.Time {
return time.Date(2001, time.February, 3, 4, 5, 6, 7, time.UTC)
}
defer func() {
TimestampFunc = time.Now
}()
out := &bytes.Buffer{}
log := New(out).With().Str("foo", "bar").Logger()
log.Log().Timestamp().Msg("hello world")
if got, want := out.String(), `{"foo":"bar","time":"2001-02-03T04:05:06Z","message":"hello world"}`+"\n"; got != want {
t.Errorf("invalid log output:\ngot: %v\nwant: %v", got, want)
}
}