388 lines
12 KiB
Go
388 lines
12 KiB
Go
package zlog_test
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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"time"
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"git.tuxpa.in/a/zlog"
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)
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func ExampleConsoleWriter() {
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log := zlog.New(zlog.ConsoleWriter{Out: os.Stdout, NoColor: true})
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log.Info().Str("foo", "bar").Msg("Hello World")
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// Output: <nil> INF Hello World foo=bar
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}
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func ExampleConsoleWriter_customFormatters() {
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out := zlog.ConsoleWriter{Out: os.Stdout, NoColor: true}
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out.FormatLevel = func(i interface{}) string { return strings.ToUpper(fmt.Sprintf("%-6s|", i)) }
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out.FormatFieldName = func(i interface{}) string { return fmt.Sprintf("%s:", i) }
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out.FormatFieldValue = func(i interface{}) string { return strings.ToUpper(fmt.Sprintf("%s", i)) }
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log := zlog.New(out)
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log.Info().Str("foo", "bar").Msg("Hello World")
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// Output: <nil> INFO | Hello World foo:BAR
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}
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func ExampleNewConsoleWriter() {
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out := zlog.NewConsoleWriter()
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out.NoColor = true // For testing purposes only
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log := zlog.New(out)
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log.Debug().Str("foo", "bar").Msg("Hello World")
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// Output: <nil> DBG Hello World foo=bar
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}
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func ExampleNewConsoleWriter_customFormatters() {
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out := zlog.NewConsoleWriter(
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func(w *zlog.ConsoleWriter) {
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// Customize time format
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w.TimeFormat = time.RFC822
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// Customize level formatting
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w.FormatLevel = func(i interface{}) string { return strings.ToUpper(fmt.Sprintf("[%-5s]", i)) }
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},
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)
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out.NoColor = true // For testing purposes only
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log := zlog.New(out)
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log.Info().Str("foo", "bar").Msg("Hello World")
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// Output: <nil> [INFO ] Hello World foo=bar
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}
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func TestConsoleLogger(t *testing.T) {
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t.Run("Numbers", func(t *testing.T) {
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buf := &bytes.Buffer{}
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log := zlog.New(zlog.ConsoleWriter{Out: buf, NoColor: true})
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log.Info().
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Float64("float", 1.23).
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Uint64("small", 123).
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Uint64("big", 1152921504606846976).
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Msg("msg")
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if got, want := strings.TrimSpace(buf.String()), "<nil> INF msg big=1152921504606846976 float=1.23 small=123"; got != want {
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t.Errorf("\ngot:\n%s\nwant:\n%s", got, want)
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}
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})
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}
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func TestConsoleWriter(t *testing.T) {
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t.Run("Default field formatter", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true, PartsOrder: []string{"foo"}}
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_, err := w.Write([]byte(`{"foo": "DEFAULT"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "DEFAULT foo=DEFAULT\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Write colorized", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: false}
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_, err := w.Write([]byte(`{"level": "warn", "message": "Foobar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "\x1b[90m<nil>\x1b[0m \x1b[31mWRN\x1b[0m Foobar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Write fields", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true}
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d := time.Unix(0, 0).UTC().Format(time.RFC3339)
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_, err := w.Write([]byte(`{"time": "` + d + `", "level": "debug", "message": "Foobar", "foo": "bar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "12:00AM DBG Foobar foo=bar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Unix timestamp input format", func(t *testing.T) {
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of := zlog.TimeFieldFormat
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defer func() {
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zlog.TimeFieldFormat = of
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}()
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zlog.TimeFieldFormat = zlog.TimeFormatUnix
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, TimeFormat: time.StampMilli, NoColor: true}
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_, err := w.Write([]byte(`{"time": 1234, "level": "debug", "message": "Foobar", "foo": "bar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "Jan 1 00:20:34.000 DBG Foobar foo=bar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Unix timestamp ms input format", func(t *testing.T) {
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of := zlog.TimeFieldFormat
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defer func() {
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zlog.TimeFieldFormat = of
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}()
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zlog.TimeFieldFormat = zlog.TimeFormatUnixMs
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, TimeFormat: time.StampMilli, NoColor: true}
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_, err := w.Write([]byte(`{"time": 1234567, "level": "debug", "message": "Foobar", "foo": "bar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "Jan 1 00:20:34.567 DBG Foobar foo=bar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Unix timestamp us input format", func(t *testing.T) {
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of := zlog.TimeFieldFormat
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defer func() {
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zlog.TimeFieldFormat = of
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}()
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zlog.TimeFieldFormat = zlog.TimeFormatUnixMicro
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, TimeFormat: time.StampMicro, NoColor: true}
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_, err := w.Write([]byte(`{"time": 1234567891, "level": "debug", "message": "Foobar", "foo": "bar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "Jan 1 00:20:34.567891 DBG Foobar foo=bar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("No message field", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true}
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_, err := w.Write([]byte(`{"level": "debug", "foo": "bar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "<nil> DBG foo=bar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("No level field", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true}
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_, err := w.Write([]byte(`{"message": "Foobar", "foo": "bar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "<nil> ??? Foobar foo=bar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Write colorized fields", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: false}
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_, err := w.Write([]byte(`{"level": "warn", "message": "Foobar", "foo": "bar"}`))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "\x1b[90m<nil>\x1b[0m \x1b[31mWRN\x1b[0m Foobar \x1b[36mfoo=\x1b[0mbar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Write error field", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true}
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d := time.Unix(0, 0).UTC().Format(time.RFC3339)
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evt := `{"time": "` + d + `", "level": "error", "message": "Foobar", "aaa": "bbb", "error": "Error"}`
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// t.Log(evt)
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_, err := w.Write([]byte(evt))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "12:00AM ERR Foobar error=Error aaa=bbb\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Write caller field", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true}
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cwd, err := os.Getwd()
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if err != nil {
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t.Fatalf("Cannot get working directory: %s", err)
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}
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d := time.Unix(0, 0).UTC().Format(time.RFC3339)
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evt := `{"time": "` + d + `", "level": "debug", "message": "Foobar", "foo": "bar", "caller": "` + cwd + `/foo/bar.go"}`
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// t.Log(evt)
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_, err = w.Write([]byte(evt))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "12:00AM DBG foo/bar.go > Foobar foo=bar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Write JSON field", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true}
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evt := `{"level": "debug", "message": "Foobar", "foo": [1, 2, 3], "bar": true}`
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// t.Log(evt)
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_, err := w.Write([]byte(evt))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "<nil> DBG Foobar bar=true foo=[1,2,3]\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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}
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func TestConsoleWriterConfiguration(t *testing.T) {
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t.Run("Sets TimeFormat", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true, TimeFormat: time.RFC3339}
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d := time.Unix(0, 0).UTC().Format(time.RFC3339)
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evt := `{"time": "` + d + `", "level": "info", "message": "Foobar"}`
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_, err := w.Write([]byte(evt))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "1970-01-01T00:00:00Z INF Foobar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Sets PartsOrder", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true, PartsOrder: []string{"message", "level"}}
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evt := `{"level": "info", "message": "Foobar"}`
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_, err := w.Write([]byte(evt))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "Foobar INF\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Sets PartsExclude", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true, PartsExclude: []string{"time"}}
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d := time.Unix(0, 0).UTC().Format(time.RFC3339)
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evt := `{"time": "` + d + `", "level": "info", "message": "Foobar"}`
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_, err := w.Write([]byte(evt))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "INF Foobar\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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t.Run("Sets FieldsExclude", func(t *testing.T) {
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buf := &bytes.Buffer{}
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w := zlog.ConsoleWriter{Out: buf, NoColor: true, FieldsExclude: []string{"foo"}}
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evt := `{"level": "info", "message": "Foobar", "foo":"bar", "baz":"quux"}`
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_, err := w.Write([]byte(evt))
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if err != nil {
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t.Errorf("Unexpected error when writing output: %s", err)
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}
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expectedOutput := "<nil> INF Foobar baz=quux\n"
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actualOutput := buf.String()
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if actualOutput != expectedOutput {
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t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
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}
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})
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}
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func BenchmarkConsoleWriter(b *testing.B) {
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b.ResetTimer()
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b.ReportAllocs()
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var msg = []byte(`{"level": "info", "foo": "bar", "message": "HELLO", "time": "1990-01-01"}`)
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w := zlog.ConsoleWriter{Out: ioutil.Discard, NoColor: false}
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for i := 0; i < b.N; i++ {
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w.Write(msg)
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}
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}
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