This is a testharness.js-based test.
[FAIL] Property content value 'open-quote "hello" "world" close-quote'
assert_equals: expected "open-quote \\"hello\\" \\"world\\" close-quote" but got "open-quote \\"helloworld\\" close-quote"
[FAIL] Property content value 'open-quote "hello" "world" close-quote / "alt text"'
assert_equals: expected "open-quote \\"hello\\" \\"world\\" close-quote / \\"alt text\\"" but got "open-quote \\"helloworld\\" close-quote / \\"alt text\\""
Harness: the test ran to completion.