| Testing the ForwardButton class. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS forwardButton.element.localName is "button" | |
| PASS forwardButton.element.classList.contains("forward") is true | |
| PASS forwardButton.iconName is Icons.Forward | |
| PASS forwardButton.image.element.style.webkitMaskImage.includes("macOS/Forward.svg") became true | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |