Testing the SkipBackButton class.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS skipBackButton.element.localName is "button"
PASS skipBackButton.element.classList.contains("skip-back") is true
PASS skipBackButton.iconName is Icons.SkipBack
PASS skipBackButton.image.element.style.webkitMaskImage.includes("macOS/SkipBack15.svg") became true
PASS iOSSkipBackButton.image.element.style.webkitMaskImage.includes("iOS/SkipBack15.svg") became true
PASS successfullyParsed is true

TEST COMPLETE