Tests basic mouse event handlers.
The test shows a target that can be used to generate the various kinds of mouse events supported in SVG. Below the target, the list of events is shown with red markers next to each.
If the test passes, all the markers should have turned to green after the events have been triggered on the target. If any event has not triggered, its marker will remain red.
Load the test. Move the pointing device over the gray circle, and then away from it.
The test passes if, after moving the mouse away from the gray circle, all three rectangles are green.