1 Check that PopStateEvent.state always has a correct value.
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 PASS history.state is defined.
9 PASS history.state is 2
11 PASS popStateEvent.state is 1
12 PASS history.state is 1
14 PASS popStateEvent.state is 1
15 PASS history.state is 3
16 PASS successfullyParsed is true