{"a1:a2:a3:a4::b1:b2:b3:b4", nil}, // Issue 6628
	{"127.001.002.003", nil},
	{"::ffff:127.001.002.003", nil},
	{"123.000.000.000", nil},
	{"1.2..4", nil},
	{"0123.0.0.1", nil},
}

func TestParseIP(t *testing.T) {
	for _, tt := range parseIPTests {
		if out := ParseIP(tt.in); !reflect.DeepEqual(out, tt.out) {
			t.Errorf("ParseIP(%q) = %v, want %v", tt.in, out, tt.out)
		}
		if tt.in == "" {