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126 lines
3.3 KiB
126 lines
3.3 KiB
package log_test
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import (
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"context"
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"fmt"
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std "log"
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"os"
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"gitoa.ru/go-4devs/log"
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)
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//nolint:gochecknoglobals
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var ctx = context.Background()
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func ExampleNew() {
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logger := log.New(log.WithStdout())
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logger.Info(ctx, "same message")
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// Output: msg="same message"
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}
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func ExampleInfo() {
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std.SetOutput(os.Stdout)
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std.SetFlags(0)
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log.Info(ctx, "same message")
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// Output: msg="same message" level=info
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}
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func ExampleErrKV() {
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std.SetOutput(os.Stdout)
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std.SetFlags(0)
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log.ErrKV(ctx, "same message", "key", "addition value")
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// Output: msg="same message" key=addition value level=error
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}
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func ExampleNew_errf() {
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logger := log.New(log.WithStdout())
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logger.Errf(ctx, "same message %d", 1)
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// Output: msg="same message 1"
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}
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func ExampleNew_debugKV() {
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logger := log.New(log.WithStdout()).With(log.WithLevel(log.LevelDebug))
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logger.DebugKV(ctx, "same message", "error", os.ErrNotExist)
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// Output: msg="same message" error=file does not exist level=debug
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}
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func ExampleNew_level() {
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logger := log.New(log.WithStdout()).With(log.WithLevel(log.LevelError))
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logger.Info(ctx, "same message")
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// Output:
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logger.Err(ctx, "same error message")
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// Output: msg="same error message" level=error
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}
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func ExampleNew_jsonFormat() {
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logger := log.New(log.WithStdout(), log.WithJSONFormat()).
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With(
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log.WithCaller(4, true),
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log.WithLevel(log.LevelDebug),
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log.GoVersion("go-version"),
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)
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logger.Err(ctx, "same error message")
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// Output: {"caller":"logger_example_test.go:63","go-version":"go1.14.2","level":"error","msg":"same error message"}
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}
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func ExampleNew_withLogger() {
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stdlogger := std.New(os.Stdout, "same prefix ", std.Lshortfile)
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logger := log.With(
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log.New(
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log.WithLogger(
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stdlogger,
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func(msg string, fields log.Fields) string {
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return fmt.Sprint("msg=\"", msg, "\" ", fields)
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},
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),
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log.WithCalldepth(9),
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),
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log.WithLevel(log.LevelDebug),
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log.GoVersion("go-version"),
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)
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logger.Err(ctx, "same error message")
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logger.InfoKV(ctx, "same info message", "api-version", 0.1)
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// Output:
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// same prefix logger_example_test.go:82: msg="same error message" level=error go-version=go1.14.2
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// same prefix logger_example_test.go:83: msg="same info message" api-version=0.1 level=info go-version=go1.14.2
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}
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type ctxKey string
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func (c ctxKey) String() string {
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return string(c)
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}
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func levelInfo(ctx context.Context, level log.Level, msg string, fields log.Fields, handler log.Logger) {
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handler(ctx, level, msg, append(fields, log.Field{Key: "level", Value: level}))
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}
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func ExampleWith() {
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var requestID ctxKey = "requestID"
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vctx := context.WithValue(ctx, requestID, "6a5fa048-7181-11ea-bc55-0242ac130003")
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logger := log.With(
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log.New(log.WithStdout()),
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levelInfo, log.WithContextValue(requestID), log.KeyValue("api", "0.1.0"), log.GoVersion("go"),
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)
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logger.Info(vctx, "same message")
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// Output: msg="same message" level=info requestID=6a5fa048-7181-11ea-bc55-0242ac130003 api=0.1.0 go=go1.14.2
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}
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func ExampleLogger_Print() {
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logger := log.With(
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log.New(log.WithStdout()),
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levelInfo, log.KeyValue("client", "http"), log.KeyValue("api", "0.1.0"), log.GoVersion("go"),
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)
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logger.Print("same message")
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// Output: msg="same message" level=info client=http api=0.1.0 go=go1.14.2
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}
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func ExamplePrint() {
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std.SetOutput(os.Stdout)
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std.SetFlags(0)
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log.Print("same message")
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// Output: msg="same message" level=info
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}
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