{"go1.19.0", "go1.19.1", -1},
	{"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"},

	{"1.24", Version{"1", "24", "", "", ""}},
	{"1.24rc3", Version{"1", "24", "", "rc", "3"}},
	{"1.24.0", Version{"1", "24", "0", "", ""}},
	{"1.999testmod", Version{"1", "999", "", "testmod", ""}},
	{"1.99999999999999999", Version{"1", "99999999999999999", "", "", ""}},
}

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

var langTests = []testCase1[string, string]{
	{"1.2rc3", "1.2"},
	{"1.2.3", "1.2"},
	{"1.2", "1.2"},

}

func g() int64 {
	return int64((float64(0.03) - float64(0.02)) * 1_000_000) // ERROR "cannot convert \(float64\(0\.03\) - float64\(0\.02\)\) \* 1_000_000 \(constant 9999\.999999999998 of type float64\) to type int64"