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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /toolkit/xre/test/test_fpuhandler.html
parentInitial commit. (diff)
downloadthunderbird-upstream.tar.xz
thunderbird-upstream.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/xre/test/test_fpuhandler.html')
-rw-r--r--toolkit/xre/test/test_fpuhandler.html36
1 files changed, 36 insertions, 0 deletions
diff --git a/toolkit/xre/test/test_fpuhandler.html b/toolkit/xre/test/test_fpuhandler.html
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--- /dev/null
+++ b/toolkit/xre/test/test_fpuhandler.html
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+<head>
+ <title>Floating-point exception handler test</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+
+<body onload="runTest()">
+ <embed id="plugin1" type="application/x-test" width="400" height="400"></embed>
+
+ <script class="testbody" type="application/javascript">
+ SimpleTest.waitForExplicitFinish();
+
+ function doDiv(x, y) {
+ var z;
+ z = x / y;
+
+ for (let i = 0 + x; i < 1000; ++i)
+ z = y / x;
+
+ z = x / y;
+ return z;
+ }
+
+ function runTest() {
+ ok(isNaN(doDiv(0.0, 0.0)), "Undefined division-by-zero doesn't crash");
+
+ try {
+ document.getElementById("plugin1").enableFPExceptions();
+ } catch (e) {
+ ok(true, "No special code to set the FPU bit in the testplugin.");
+ SimpleTest.finish();
+ return;
+ }
+
+ ok(isNaN(doDiv(0.0, 0.0)), "Undefined division-by-zero doesn't crash again.");
+ SimpleTest.finish();
+ }
+ </script>