var b strings.Builder
	l := New(&b, "", 0)
	l.Println(testString)
	if expect := testString + "\n"; b.String() != expect {
		t.Errorf("log output should match %q is %q", expect, b.String())
	}
}

func TestNonNewLogger(t *testing.T) {
	var l Logger
	l.SetOutput(new(bytes.Buffer)) // minimal work to initialize a Logger
	l.Print("hello")
}

func TestOutputRace(t *testing.T) {
	var b bytes.Buffer
	l := New(&b, "", 0)