This is a testharness.js-based test.
[FAIL] Property text-spacing-trim value 'auto'
  assert_true: 'auto' is a supported value for text-spacing-trim. expected true got false
[FAIL] Property text-spacing-trim value 'trim-both'
  assert_true: 'trim-both' is a supported value for text-spacing-trim. expected true got false
[FAIL] Property text-spacing-trim value 'trim-all'
  assert_true: 'trim-all' is a supported value for text-spacing-trim. expected true got false
Harness: the test ran to completion.