| Test Element.closest() with no argument, null, and undefined. |
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| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". |
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| PASS document.getElementById("target1").closest() threw exception TypeError: Not enough arguments. |
| PASS document.getElementById("target1").closest(null).id is "null1" |
| PASS document.getElementById("target1").closest(undefined).id is "undefined1" |
| PASS document.getElementById("target2").closest() threw exception TypeError: Not enough arguments. |
| PASS document.getElementById("target2").closest(null).id is "null2" |
| PASS document.getElementById("target2").closest(undefined) is null |
| PASS document.getElementById("target3").closest() threw exception TypeError: Not enough arguments. |
| PASS document.getElementById("target3").closest(null) is null |
| PASS document.getElementById("target3").closest(undefined).id is "undefined3" |
| PASS document.getElementById("target4").closest() threw exception TypeError: Not enough arguments. |
| PASS document.getElementById("target4").closest(null) is null |
| PASS document.getElementById("target4").closest(undefined) is null |
| PASS successfullyParsed is true |
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| TEST COMPLETE |
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