[test_variable_serialization_computed.html]
  type: testharness
  [subtest #20 with `--a: var(--b)var(--c); --b:orange; --c:red;`]
    expected: FAIL

  [subtest #21 with `--a: var(--b)var(--c,red); --b:orange;`]
    expected: FAIL

  [subtest #22 with `--a: var(--b,orange)var(--c); --c:red;`]
    expected: FAIL

  [subtest #24 with `--a: var(--b)var(--c); --c:[c\]; --b:('ab`]
    expected: FAIL

  [subtest #25 with `--a: '`]
    expected: FAIL

  [subtest #26 with `--a: '\\`]
    expected: FAIL

  [subtest #27 with `--a: \\`]
    expected: FAIL

  [subtest #28 with `--a: "`]
    expected: FAIL

  [subtest #29 with `--a: "\\`]
    expected: FAIL

  [subtest #30 with `--a: /* abc `]
    expected: FAIL

  [subtest #31 with `--a: /* abc *`]
    expected: FAIL

  [subtest #32 with `--a: url(http://example.org/`]
    expected: FAIL

  [subtest #33 with `--a: url(http://example.org/\\`]
    expected: FAIL

  [subtest #34 with `--a: url('http://example.org/`]
    expected: FAIL

  [subtest #35 with `--a: url('http://example.org/\\`]
    expected: FAIL

  [subtest #36 with `--a: url("http://example.org/`]
    expected: FAIL

  [subtest #37 with `--a: url("http://example.org/\\`]
    expected: FAIL