Test for layoutTestController.pageNumberForElementById() On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS layoutTestController.pageNumberForElementById('firstPage', 1000, 1000) is 0 PASS layoutTestController.pageNumberForElementById('secondPage', 1000, 1000) is 1 PASS layoutTestController.pageNumberForElementById('thirdPage', 1000, 1000) is 2 PASS layoutTestController.pageNumberForElementById('thirdPage2', 1000, 1000) is 2 PASS successfullyParsed is true TEST COMPLETE