-main frame - img requested 'image-set-4x.png'
PASS successfullyParsed is true
TEST COMPLETE
PASS currentSrcFileName("foo") is "image-set-4x.png"
+PASS internals.isLoadingFromMemoryCache("resources/image-set-4x.png") is true
+PASS internals.isLoadingFromMemoryCache("../../hidpi/resources/image-set-2x.png") is false
+PASS internals.isLoadingFromMemoryCache("../../hidpi/resources/image-set-1x.png") is false
+PASS internals.isLoadingFromMemoryCache("resources/blue-100-px-square.png") is false