This is a testharness.js-based test. Found 14 FAIL, 0 TIMEOUT, 0 NOTRUN. [FAIL] background-image image(gradient) / values assert_not_equals: must not be target value after start got disallowed value "-webkit-linear-gradient(top, rgb(186, 218, 85), rgb(240, 117, 117))" [FAIL] background-image image(gradient) / events assert_equals: Expected TransitionEnd events triggered on .transition expected "background-image:2s" but got "" [FAIL] background-size background-size(keyword) / values assert_not_equals: must not be target value after start got disallowed value "contain" [FAIL] background-size background-size(keyword) / events assert_equals: Expected TransitionEnd events triggered on .transition expected "background-size:2s" but got "" [FAIL] display display(static to absolute) / values assert_not_equals: must not be target value after start got disallowed value "block" [FAIL] display display(static to absolute) / events assert_equals: Expected TransitionEnd events triggered on .transition expected "display:2s" but got "" [FAIL] display display(block to inline-block) / values assert_not_equals: must not be target value after start got disallowed value "inline-block" [FAIL] display display(block to inline-block) / events assert_equals: Expected TransitionEnd events triggered on .transition expected "display:2s" but got "" [FAIL] position position(static to absolute) / values assert_not_equals: must not be target value after start got disallowed value "absolute" [FAIL] position position(static to absolute) / events assert_equals: Expected TransitionEnd events triggered on .transition expected "position:2s" but got "" [FAIL] position position(relative to absolute) / values assert_not_equals: must not be target value after start got disallowed value "absolute" [FAIL] position position(relative to absolute) / events assert_equals: Expected TransitionEnd events triggered on .transition expected "position:2s" but got "" [FAIL] position position(absolute to fixed) / values assert_not_equals: must not be target value after start got disallowed value "fixed" [FAIL] position position(absolute to fixed) / events assert_equals: Expected TransitionEnd events triggered on .transition expected "position:2s" but got "" Harness: the test ran to completion.