This is a testharness.js-based test.
[FAIL] var() name comes from another var()
  assert_equals: expected "10px" but got "784px"
[FAIL] var() name comes from a chain of var()s
  assert_equals: expected "10px" but got "784px"
[FAIL] invalid substituted name falls back
  assert_equals: expected "20px" but got "784px"
[FAIL] unset name-providing var() falls back
  assert_equals: expected "30px" but got "784px"
[FAIL] whitespace around substituted name
  assert_equals: expected "10px" but got "784px"
[FAIL] name argument substituting to nothing falls back
  assert_equals: expected "40px" but got "784px"
[FAIL] multi-token substituted name falls back
  assert_equals: expected "50px" but got "784px"
[FAIL] dimension-token substituted name falls back
  assert_equals: expected "60px" but got "784px"
[FAIL] string substituted name falls back
  assert_equals: expected "70px" but got "784px"
[FAIL] -- as substituted name falls back
  assert_equals: expected "80px" but got "784px"
[FAIL] {}-wrapped literal name argument
  assert_equals: expected "10px" but got "784px"
[FAIL] {}-wrapped substituted name argument
  assert_equals: expected "10px" but got "784px"
[FAIL] {}-wrapped name argument with whitespace
  assert_equals: expected "10px" but got "784px"
[FAIL] {}-wrapped name argument with fallback
  assert_equals: expected "90px" but got "784px"
[FAIL] var() name comes from attr()
  assert_equals: expected "10px" but got "784px"
[FAIL] var() name from attr() that is not a name falls back
  assert_equals: expected "100px" but got "784px"
[FAIL] var() name comes from if()
  assert_equals: expected "10px" but got "784px"
[FAIL] var() name comes from random-item()
  assert_equals: expected "10px" but got "784px"
[FAIL] substituted name resolves a registered property
  assert_equals: expected "7px" but got "784px"
[FAIL] substituted name of a guaranteed-invalid registered property uses the fallback
  assert_equals: expected "130px" but got "784px"
[FAIL] fallback of an unparsed name is not syntax checked
  assert_equals: expected "140px" but got "784px"
Harness: the test ran to completion.