This is a testharness.js-based test.
Found 31 FAIL, 0 TIMEOUT, 0 NOTRUN.
[FAIL] CSSStyleRule interface: existence and properties of interface object
assert_equals: prototype of CSSStyleRule is not CSSGroupingRule expected function "function CSSGroupingRule() { [native code] }" but got function "function CSSRule() { [native code] }"
[FAIL] CSSStyleRule interface: existence and properties of interface prototype object
assert_equals: prototype of CSSStyleRule.prototype is not CSSGroupingRule.prototype expected object "[object CSSGroupingRule]" but got object "[object CSSRule]"
[FAIL] CSSImportRule interface: sheet.cssRules[0] must inherit property "layerName" with the proper type
assert_equals: expected "string" but got "object"
[FAIL] CSSImportRule interface: sheet.cssRules[0] must inherit property "supportsText" with the proper type
assert_equals: expected "string" but got "object"
[FAIL] CSSPageDescriptors interface: existence and properties of interface object
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface object length
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface object name
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: existence and properties of interface prototype object
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: existence and properties of interface prototype object's "constructor" property
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: existence and properties of interface prototype object's @@unscopables property
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute margin
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute marginTop
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute marginRight
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute marginBottom
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute marginLeft
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute margin-top
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute margin-right
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute margin-bottom
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute margin-left
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute size
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute pageOrientation
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute page-orientation
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute marks
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSPageDescriptors interface: attribute bleed
assert_own_property: self does not have own property "CSSPageDescriptors" expected property "CSSPageDescriptors" missing
[FAIL] CSSStyleProperties interface: existence and properties of interface object
assert_own_property: self does not have own property "CSSStyleProperties" expected property "CSSStyleProperties" missing
[FAIL] CSSStyleProperties interface object length
assert_own_property: self does not have own property "CSSStyleProperties" expected property "CSSStyleProperties" missing
[FAIL] CSSStyleProperties interface object name
assert_own_property: self does not have own property "CSSStyleProperties" expected property "CSSStyleProperties" missing
[FAIL] CSSStyleProperties interface: existence and properties of interface prototype object
assert_own_property: self does not have own property "CSSStyleProperties" expected property "CSSStyleProperties" missing
[FAIL] CSSStyleProperties interface: existence and properties of interface prototype object's "constructor" property
assert_own_property: self does not have own property "CSSStyleProperties" expected property "CSSStyleProperties" missing
[FAIL] CSSStyleProperties interface: existence and properties of interface prototype object's @@unscopables property
assert_own_property: self does not have own property "CSSStyleProperties" expected property "CSSStyleProperties" missing
[FAIL] CSSStyleProperties interface: attribute cssFloat
assert_own_property: self does not have own property "CSSStyleProperties" expected property "CSSStyleProperties" missing
Harness: the test ran to completion.