Tests whether SVG event bubbling works across shadow trees.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS successfullyParsed is true
TEST COMPLETE
PASS msg is "[EventHandler 1] type: click phase: AT_TARGET target: [object SVGRectElement] (id: rect) currentTarget: [object SVGRectElement] (id: rect)"
PASS msg is "[EventHandler 1] type: click phase: AT_TARGET target: [object SVGRectElement] (id: rect) currentTarget: [object SVGRectElement] (id: rect)"
PASS msg is "[EventHandler 2] type: click phase: BUBBLING target: [object SVGRectElement] (id: rect) currentTarget: [object SVGGElement] (id: rectParent)"
PASS msg is "[EventHandler 1] type: click phase: AT_TARGET target: [object SVGRectElement] (id: rect) currentTarget: [object SVGRectElement] (id: rect)"
PASS msg is "[EventHandler 2] type: click phase: BUBBLING target: [object SVGRectElement] (id: rect) currentTarget: [object SVGGElement] (id: rectParent)"
PASS msg is "[EventHandler 3] type: click phase: AT_TARGET target: [object SVGUseElement] (id: use) currentTarget: [object SVGUseElement] (id: use)"
PASS msg is "[EventHandler 1] type: click phase: AT_TARGET target: [object SVGRectElement] (id: rect) currentTarget: [object SVGRectElement] (id: rect)"
PASS msg is "[EventHandler 2] type: click phase: BUBBLING target: [object SVGRectElement] (id: rect) currentTarget: [object SVGGElement] (id: rectParent)"
PASS msg is "[EventHandler 3] type: click phase: AT_TARGET target: [object SVGUseElement] (id: use) currentTarget: [object SVGUseElement] (id: use)"
PASS msg is "[EventHandler 4] type: click phase: BUBBLING target: [object SVGUseElement] (id: use) currentTarget: [object SVGGElement] (id: useParent)"
PASS successfullyParsed is true
TEST COMPLETE