web-platform-tests/wpt

selectionchange testing TODOs

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#11.493 aberto em 13 de jun. de 2018

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good first issueselectiontype:missing-coverage

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Description

Over in PR #11491 I introduced a preliminary test for the selectionchange event.

Here is an initial pass at a TODO for more tests we should write for selectionchange:

  • test for invoking selectionchange without changing the selection
  • test that selection change does not fire in a document without a browsing context (i.e. document.implementation.createHTMLDocument)
  • test which document selectionchange fires when it is bound to in an iframe

While writing this initial coverage I encountered the following behavior which warrants further exploration in future tests/bugs/implementation patches. This area has a lot of compat issues to track down, so I think there may be a bunch of 'good first issues here':

  • When selectAllChildren runs, Firefox synchronously fires selectionchange, while Chrome appears to que a task.
  • selectAllChildren works on textareas in chrome and not firefox, while accessing textContent works in firefox but not chrome.
  • textarea innerText and textContent behave differently in Chrome and FF

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