Verify that :active remain consistent when the focus is changing.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

    Initial state
PASS elementsWithActiveStyle() is []
PASS elementsMatchingSelector(":active") is []
PASS elementsMatchingSelector(":focus") is []
On Mouse Down
PASS elementsWithActiveStyle() is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":active") is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
After Mouse Down
PASS elementsWithActiveStyle() is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":active") is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
Focus the target
PASS elementsWithActiveStyle() is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":active") is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":focus") is ["target"]
Focus input2
PASS elementsWithActiveStyle() is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":active") is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":focus") is ["input2"]
Focus the target
PASS elementsWithActiveStyle() is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":active") is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":focus") is ["target"]
Focus input1
PASS elementsWithActiveStyle() is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":active") is ["html", "body", "webkit-test", "labelable-ancestor", "labelable-parent", "target"]
PASS elementsMatchingSelector(":focus") is ["input1"]
PASS successfullyParsed is true

TEST COMPLETE