toolkit/xre/test/test_fpuhandler.html@6474c204b198 (annotated)
toolkit/xre/test/test_fpuhandler.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | <head> |
| michael@0 | 2 | <title>Floating-point exception handler test</title> |
| michael@0 | 3 | <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 4 | |
| michael@0 | 5 | <body onload="runTest()"> |
| michael@0 | 6 | <embed id="plugin1" type="application/x-test" width="400" height="400"></embed> |
| michael@0 | 7 | |
| michael@0 | 8 | <script class="testbody" type="application/javascript"> |
| michael@0 | 9 | SimpleTest.waitForExplicitFinish(); |
| michael@0 | 10 | |
| michael@0 | 11 | function doDiv(x, y) { |
| michael@0 | 12 | var z; |
| michael@0 | 13 | z = x / y; |
| michael@0 | 14 | |
| michael@0 | 15 | for (i = 0 + x; i < 1000; ++i) |
| michael@0 | 16 | z = y / x; |
| michael@0 | 17 | |
| michael@0 | 18 | z = x / y; |
| michael@0 | 19 | return z; |
| michael@0 | 20 | } |
| michael@0 | 21 | |
| michael@0 | 22 | function runTest() |
| michael@0 | 23 | { |
| michael@0 | 24 | ok(isNaN(doDiv(0.0, 0.0)), "Undefined division-by-zero doesn't crash"); |
| michael@0 | 25 | |
| michael@0 | 26 | try { |
| michael@0 | 27 | document.getElementById('plugin1').enableFPExceptions(); |
| michael@0 | 28 | } |
| michael@0 | 29 | catch (e) { |
| michael@0 | 30 | ok(true, "No special code to set the FPU bit in the testplugin."); |
| michael@0 | 31 | SimpleTest.finish(); |
| michael@0 | 32 | return; |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | ok(isNaN(doDiv(0.0, 0.0)), "Undefined division-by-zero doesn't crash again."); |
| michael@0 | 36 | SimpleTest.finish(); |
| michael@0 | 37 | } |
| michael@0 | 38 | </script> |
