{"http:opaque?x=y#zzz", "https://user@host:1234?a=b#frag", "https://user@host:1234?a=b#frag"},
	{"http:opaque?x=y#zzz", "?a=b#frag", "http:opaque?a=b#frag"},
}

func TestResolveReference(t *testing.T) {
	mustParse := func(url string) *URL {
		u, err := Parse(url)
		if err != nil {
			t.Fatalf("Parse(%q) got err %v", url, err)
		}
		return u
	}