{"go1.19rc1", "go1.19.0", -1},
	{"go1.19alpha3", "go1.19beta2", -1},
	{"go1.19beta2", "go1.19rc1", -1},
	{"go1.1", "go1.99999999999999998", -1},
	{"go1.99999999999999998", "go1.99999999999999999", -1},
}

func TestLang(t *testing.T) { test1(t, langTests, "Lang", Lang) }

var langTests = []testCase1[string, string]{
	{"bad", ""},
	{"go1.2rc3", "go1.2"},
	{"go1.2.3", "go1.2"},
	{"go1.2", "go1.2"},
	{"go1", "go1"},