Tests spelling and grammar markers for misspellings. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Checking grammar issue on 'I have a issue.' PASS internals.markerRangeForNode(element.firstChild, nextMisspellingData.marker, 0) became different from null PASS range.toString() is "a" Checking spelling issue on 'zz.' PASS internals.markerRangeForNode(element.firstChild, nextMisspellingData.marker, 0) became different from null PASS range.toString() is "zz" Checking spelling issue on 'orange,zz,apple.' PASS internals.markerRangeForNode(element.firstChild, nextMisspellingData.marker, 0) became different from null PASS range.toString() is "zz" Checking grammar issue on 'orange,zz,apple.' PASS internals.markerRangeForNode(element.firstChild, nextMisspellingData.marker, 0) became different from null PASS range.toString() is "orange,zz,apple." Checking spelling issue on 'I have a issue.' PASS internals.markerCountForNode(element.firstChild, oppositeMarker) became 0 Checking grammar issue on 'zz.' PASS internals.markerCountForNode(element.firstChild, oppositeMarker) became 0 PASS successfullyParsed is true TEST COMPLETE I have a issue. zz. orange,zz,apple.