1 Test for bugs cr 87473, 64882.
3 This test verifies that we get the correct button on mouseover events in .which when entering a document.
5 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
9 PASS successfullyParsed is true
12 PASS document.events['A-no-press'].which is 0
13 PASS document.events['B-left'].which is 1
14 PASS document.events['C-no-press'].which is 0
15 PASS document.events['D-middle'].which is 2