Running tests in a single window

All,

I am wondering about running some of the WPT tests on an implementation
which does not support multiple windows / tabs. I have successfully run
individual tests on this device, but the test runner doesn't work (because
window.open doesn't work).

Has anyone else looked at this ?

I can think of various ways to approach it, such as keeping the outstanding
test list and results so far in local storage and navigating to the next
test as each test completes etc.

Thanks in advance for any advice.

...Mark