| There are three form control elements below, all optional. They're set as required via required DOM attribute. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| Before set: | |
| PASS requiredFor("input") is false | |
| PASS requiredFor("textarea") is false | |
| PASS requiredFor("select") is false | |
| After set: | |
| PASS requiredFor("input") is true | |
| PASS requiredFor("textarea") is true | |
| PASS requiredFor("select") is true | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |