@Test
    void clientShouldTreatPoundSignAsFragment() {
        // '#' must be treated as a fragment marker.
        assertAccepted(forClient("/?a=b#1"), "/", "a=b", "1");
        assertAccepted(forClient("/#?a=b#1"), "/", null, "?a=b%231");

        // '%23' should never be treated as a fragment marker.
        assertAccepted(forClient("/%23?a=b%231"), "/%23", "a=b%231");
    }
{@link RequestTarget} treats the first `=` in a query parameter as `/` internally to simplify
the detection the logic. This test makes sure the `=` appeared later is not treated as `/`.
core/src/test/java/com/linecorp/armeria/internal/common/DefaultRequestTargetTest.java