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select2/tests/integration-jq2.html
Kevin Brown 650035cf38
Restore compatibility with data-* attributes in jQuery 2.x (#5486)
* Start running tests against jQuery 2.x

We were only running tests against jQuery 1.x before and they were
all passing. This was a problem because apparently all of the data-*
attribute tests fail in jQuery 2.x.  We are now running both the
integration and unit tests against both jQuery 1.x and jQuery 2.x.

Right now this resulted in a complete duplication of the test files
because there wasn't an obvious way to run the tests against both
versions. We're going to look into removing this duplication in the
future once the current issues are fixed.

We are also going to look into testing against jQuery 3.x in the
future, since that is also a supported line of jQuery.

* Force the data-* attributes to be parsed

There was a change made that switched us from using `$.data` and
`$.fn.data` internally to using an internal data store (managed
through internal utilities). This had the unfortunate side effect
of breaking the automatic loading of data-* options in versions of
jQuery other than 1.x, which included anything that would be
considered modern jQuery. While the change was made and approved
in good faith, all of the tests passed and the docs pages appeared
to be working, the tests really failed when running on newer versions
of jQuery. This was confirmed when we started running automated tests
against both versions, which confirmed the bug that others have been
seeing for a while.

The change was made becuase calling `$.fn.data` on an element which
contains a reference to itself in the internal jQuery data cache
would cause a stack overflow. This bug was well documented at the
following GitHub ticket and was resolved by no longer using
`$.fn.data`: https://github.com/select2/select2/issues/4014

Unfortunately because `$.fn.data` was no longer being called in a
way such that all of the data attributes would be dumped out, we
needed to find a replacement. The substitute that was given in the
original bug fix worked when the data cache was fully primed, but
we never primed it anywhere so it actually failed in the general
case. That meant we needed to find a way to manually prime it,
which is exactly what this change does.

* Clean up select2/utils
2019-04-27 22:20:56 -04:00

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HTML

<!doctype html>
<html>
<head>
<link rel="stylesheet" href="vendor/qunit-1.23.1.css" type="text/css" />
<link rel="stylesheet" href="../../dist/css/select2.css" type="text/css" />
</head>
<body>
<div id="qunit"></div>
<div id="qunit-fixture"></div>
<script src="vendor/qunit-1.23.1.js" type="text/javascript"></script>
<script src="vendor/jquery-2.2.4.js" type="text/javascript"></script>
<script src="../dist/js/select2.full.js" type="text/javascript"></script>
<script src="helpers.js" type="text/javascript"></script>
<script src="integration/dom-changes.js" type="text/javascript"></script>
<script src="integration/jquery-calls.js" type="text/javascript"></script>
<script src="integration/select2-methods.js" type="text/javascript"></script>
</body>
</html>