summaryrefslogtreecommitdiffstats
path: root/layout/style/test/test_load_events_on_stylesheets.html
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/style/test/test_load_events_on_stylesheets.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/style/test/test_load_events_on_stylesheets.html')
-rw-r--r--layout/style/test/test_load_events_on_stylesheets.html152
1 files changed, 152 insertions, 0 deletions
diff --git a/layout/style/test/test_load_events_on_stylesheets.html b/layout/style/test/test_load_events_on_stylesheets.html
new file mode 100644
index 000000000..c6dedbed1
--- /dev/null
+++ b/layout/style/test/test_load_events_on_stylesheets.html
@@ -0,0 +1,152 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=185236
+-->
+<head>
+ <title>Test for Bug 185236</title>
+ <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+ <script>
+ var pendingEventCounter = 0;
+ var messagePosted = false;
+ SimpleTest.waitForExplicitFinish();
+ addLoadEvent(function() {
+ is(messagePosted, true, "Should have gotten onmessage event");
+ is(pendingEventCounter, 0,
+ "How did onload for the page fire before onload for all the stylesheets?");
+ SimpleTest.finish();
+ });
+ // Count the link we're about to parse
+ pendingEventCounter = 1;
+ </script>
+ <link rel="stylesheet" href="data:text/css,*{}"
+ onload="--pendingEventCounter;
+ ok(true, 'Load event firing on basic stylesheet')"
+ onerror="--pendingEventCounter;
+ ok(false, 'Error event firing on basic stylesheet')">
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=185236">Mozilla Bug 185236</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+/** Test for Bug 185236 **/
+// Verify that there are no in-flight sheet loads right now; we should have
+// waited for them when we hit the script tag
+is(pendingEventCounter, 0, "There should be no pending events");
+
+// Test sheet that will already be complete when we write it out
+++pendingEventCounter;
+
+// Make sure that a postMessage we do right now fires after the onload handler
+// for the stylesheet. If we ever change the timing of sheet onload, we will
+// need to change that.
+window.onmessage = function() {
+ messagePosted = true;
+ // There are 4 pending events: two from the two direct example.com loads,
+ // and 2 from the two data:text/css loads that import things
+ is(pendingEventCounter, 4, "Load event for sheet should have fired");
+}
+window.postMessage("", "*");
+
+document.write('<link rel="stylesheet" href="data:text/css,*{}"\
+ onload="--pendingEventCounter;\
+ ok(true, \'Load event firing on basic stylesheet\')"\
+ onerror="--pendingEventCounter;\
+ ok(false, \'Error event firing on basic stylesheet\')">');
+
+// Make sure we have that second stylesheet
+is(document.styleSheets.length, 3, "Should have three stylesheets");
+
+// Make sure that the second stylesheet is all loaded
+// If we ever switch away from sync loading of already-complete sheets, this
+// test will need adjusting
+is(document.styleSheets[2].cssRules.length, 1, "Should have one rule");
+
+// Make sure the load event for that stylesheet has not fired yet
+is(pendingEventCounter, 1, "There should be one pending event");
+
+++pendingEventCounter;
+document.write('<style\
+ onload="--pendingEventCounter;\
+ ok(true, \'Load event firing on inline stylesheet\')"\
+ onerror="--pendingEventCounter;\
+ ok(false, \'Error event firing on inline stylesheet\')"></style>');
+
+// Make sure the load event for that second stylesheet has not fired yet
+is(pendingEventCounter, 2, "There should be two pending events");
+
+++pendingEventCounter;
+document.write('<link rel="stylesheet" href="http://www.example.com"\
+ onload="--pendingEventCounter;\
+ ok(false, \'Load event firing on broken stylesheet\')"\
+ onerror="--pendingEventCounter;\
+ ok(true, \'Error event firing on broken stylesheet\')">');
+
+++pendingEventCounter;
+var link = document.createElement("link");
+link.rel = "stylesheet";
+link.href = "http://www.example.com";
+link.onload = function() { --pendingEventCounter;
+ ok(false, 'Load event firing on broken stylesheet');
+};
+link.onerror = function() { --pendingEventCounter;
+ ok(true, 'Error event firing on broken stylesheet');
+}
+document.body.appendChild(link);
+
+++pendingEventCounter;
+link = document.createElement("link");
+link.rel = "stylesheet";
+link.href = "data:text/css,*{}";
+link.onload = function() { --pendingEventCounter;
+ ok(true, 'Load event firing on external stylesheet');
+};
+link.onerror = function() { --pendingEventCounter;
+ ok(false, 'Error event firing on external stylesheet');
+}
+document.body.appendChild(link);
+
+// Make sure we have that last stylesheet
+is(document.styleSheets.length, 7, "Should have seven stylesheets here");
+
+// Make sure that the sixth stylesheet is all loaded
+// If we ever switch away from sync loading of already-complete sheets, this
+// test will need adjusting
+is(document.styleSheets[6].cssRules.length, 1, "Should have one rule");
+
+++pendingEventCounter;
+link = document.createElement("link");
+link.rel = "stylesheet";
+link.href = "data:text/css,@import url('data:text/css,*{}')";
+link.onload = function() { --pendingEventCounter;
+ ok(true, 'Load event firing on external stylesheet');
+};
+link.onerror = function() { --pendingEventCounter;
+ ok(false, 'Error event firing on external stylesheet');
+}
+document.body.appendChild(link);
+
+++pendingEventCounter;
+link = document.createElement("link");
+link.rel = "stylesheet";
+link.href = "data:text/css,@import url('http://www.example.com')";
+link.onload = function() { --pendingEventCounter;
+ ok(false, 'Load event firing on broken stylesheet');
+};
+link.onerror = function() { --pendingEventCounter;
+ ok(true, 'Error event firing on broken stylesheet');
+}
+document.body.appendChild(link);
+
+// Make sure the load events for all those stylesheets have not fired yet
+is(pendingEventCounter, 7, "There should be one pending event");
+
+</script>
+</pre>
+</body>
+</html>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 15:03:31 +0000