func ExampleLog() {
logger := leveledLogger.New(log.NewLogfmtLogger(os.Stdout))
logger.Debug("msg", "hello")
logger = logger.With("context", "foo")
logger.Error("error", "error message")
logger.Error("error", "another error message")
// Output:
// level=debug msg=hello
// context=foo level=error error="error message"
// context=foo level=error error="another error message"
}
func TestDoLog(t *testing.T) {
var (
buf = new(bytes.Buffer)
logger = leveledLogger.New(log.NewLogfmtLogger(buf))
expected = "level=info msg=\"message string\" fileline=file:line error=\"some error string\"\n"
got string
)
logger.Info("msg", "message string", "fileline", "file:line", "error", "some error string")
got = buf.String()
if got != expected {
t.Errorf("Got incorrect log message:\nexpected %q\n but got %q\n", expected, got)
}
}