{"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 == "" {

				}
				if !routes[0].Destination.Equal(net.IPv6zero) {
					t.Errorf("case[%s}: destination is not for default route (not zero)", tc.tcase)
				}
			}
		}
	}
}

func TestParseIP(t *testing.T) {
	testCases := []struct {
		tcase    string
		ip       string
		family   AddressFamily
		success  bool
		expected net.IP
	}{
		{"empty", "", familyIPv4, false, nil},