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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> |
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<html> |
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<head> |
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<title>JSCoverage - code coverage for JavaScript</title> |
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<link rel="stylesheet" type="text/css" href="reset-fonts-grids.css"> |
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<link rel="stylesheet" type="text/css" href="style.css"> |
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</head> |
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<body> |
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<div id="doc3" class="yui-t5"> |
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<div id="hd"><h1><span class="h1">JSCoverage</span><br><span class="tag">code coverage for JavaScript</span></h1></div> |
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<div id="bd"> |
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<div id="yui-main"> |
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<div id="jscoverage-main" class="yui-b"> |
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<p> |
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JSCoverage is a tool that measures code coverage for |
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JavaScript programs. |
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</p> |
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<p> |
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<dfn>Code coverage</dfn> statistics show which lines of a program have |
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been executed (and which have been missed). This information is useful |
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for constructing comprehensive test suites (hence, it is often called |
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<dfn>test coverage</dfn>). |
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</p> |
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<p> |
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JSCoverage works by instrumenting the JavaScript code used in web |
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pages. Code coverage statistics are collected while the instrumented |
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JavaScript code is executed in a web browser. |
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</p> |
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<p> |
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JSCoverage supports the complete language syntax described in the |
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<cite>ECMAScript Language Specification</cite> (ECMA-262, 3rd edition). |
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JSCoverage works with any modern standards-compliant web browser - |
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including Internet Explorer (IE 6, 7, and 8), Firefox, |
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Opera, Safari, and Google Chrome - on Microsoft Windows and GNU/Linux. |
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</p> |
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<p> |
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JSCoverage is free software, distributed under the |
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<a href="license.html">GNU General Public License version 2</a>. |
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</p> |
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|
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<h2>Latest News <a href="http://siliconforks.com/jscoverage/news.xml" type="application/rss+xml" title="RSS feed for JSCoverage"><img src="feed-icon-14x14.png" alt="RSS feed"></a></h2> |
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|
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<h3><a name="20100923">September 23, 2010 - JSCoverage 0.5.1</a></h3> |
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<p> |
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JSCoverage 0.5.1 is available for <a href="http://siliconforks.com/jscoverage/download.html">download</a>. |
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</p> |
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<p> |
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This release contains several bug fixes and improvements: |
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</p> |
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<ul class="list"> |
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<li> |
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Probably the largest change is in the documentation: the manual no |
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longer recommends using <code>file:</code> URLs. |
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It is recommended that an HTTP server be used instead. |
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(See the <a href="manual.html">manual</a> for details.) |
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The JSCoverage user interface now displays a warning when used with |
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<code>file:</code> URLs. |
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</li> |
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<li> |
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The <code>--verbose</code> option to <code>jscoverage</code> now |
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produces better output. |
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</li> |
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<li> |
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Report loading is now faster (thanks to Klaus). |
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</li> |
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<li> |
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Some bugs involving augmented object prototypes were fixed. |
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</li> |
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<li> |
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JavaScript instrumentation was improved to work better in non-browser |
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environments. |
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</li> |
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<li> |
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Some cases where permission errors were occurring in inverted mode were |
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fixed (thanks to tn). |
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</li> |
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<li> |
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Previously, if <code>jscoverage-server</code> was started with the |
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option <code>--ip-address=<var>A</var></code>, where <var>A</var> was a |
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specific IP address, it was impossible to shut it down with |
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<code>jscoverage-server --shutdown</code>. |
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This should be possible now by running |
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<code>jscoverage-server --shutdown --ip-address=<var>A</var></code> |
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from the same machine. |
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</li> |
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<li> |
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The test suite has been made more robust. |
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</li> |
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</ul> |
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|
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<h3><a name="20100426">April 26, 2010 - New blog</a></h3> |
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<p> |
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If you would like to see some case studies showing how to use JSCoverage in practice, take a look at the new <a href="http://blog.siliconforks.com/">blog</a>. |
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This week there will be a series of articles about using JSCoverage with various JavaScript testing frameworks. |
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The <a href="http://blog.siliconforks.com/2010/04/26/jscoverage-scriptaculous/">first article</a> looks at using JSCoverage with the <a href="http://script.aculo.us">script.aculo.us</a> test suite. |
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</p> |
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|
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<h3><a name="20100424">April 24, 2010 - JSCoverage 0.5</a></h3> |
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<p> |
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JSCoverage 0.5 is available for <a href="http://siliconforks.com/jscoverage/download.html">download</a>. |
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</p> |
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<p> |
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This release contains a number of new features and bug fixes: |
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</p> |
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<ul class="list"> |
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<li> |
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A new mode of operation, called "window mode", allows you to run code in a new browser window (or tab). |
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</li> |
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<li> |
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Code coverage statistics can now be generated for applications based on |
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the Mozilla platform using the <code>--mozilla</code> option (thanks to |
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Murali Nandigama for help creating this). |
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</li> |
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<li> |
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The method used to calculate overall percentage code coverage for all |
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files has changed. Previously, the calculation was done using an |
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unweighted average: each file's percentage code coverage contributed |
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equally to the total, regardless of the number of lines of code in the |
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file. Now, the calculation is done using a weighted average. This |
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fixes |
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<a href="http://siliconforks.com/jscoverage/bugs/6">bug #6</a> (thanks to |
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Liu Cougar). |
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</li> |
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<li> |
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Contiguous lines in the "Missing" column are now grouped together (thanks to |
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Liu Cougar). |
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</li> |
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<li> |
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The "Source" tab is no longer empty when code being tested throws an |
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uncaught exception |
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(fixing <a href="http://siliconforks.com/jscoverage/bugs/5">bug #5</a>) |
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</li> |
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<li> |
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Previously, certain uses of the <code>new</code> operator were |
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instrumented incorrectly; this has now been fixed |
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(thanks to Guillaume Lung). |
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</li> |
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<li> |
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The <code>jscoverage-server</code> program now allows more characters in |
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URLs (thanks to Guillaume Lung). |
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</li> |
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<li> |
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The <code>jscoverage-server</code> program now handles HTTP headers with |
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empty values (thanks to Velo). |
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</li> |
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<li> |
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The <code>jscoverage</code> program now refuses to instrument code which |
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has already been instrumented (thanks to Velo). |
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</li> |
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<li> |
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URLs containing spaces now work correctly (thanks to Igor Papkov). |
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</li> |
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<li> |
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Previously, on Windows, the <code>jscoverage</code> program |
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was unable to instrument a directory in a drive root; this has now been |
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fixed. |
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</li> |
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<li> |
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Encoded URLs are now handled better in the query string. |
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</li> |
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<li> |
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A limitation of 65,535 lines per file and 65,535 characters per line has |
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been removed. |
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</li> |
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<li> |
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Floating-point numbers are now handled with improved precision. |
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</li> |
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<li> |
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The <code>jscoverage-server</code> program can no longer bind to the same port multiple times on Windows. |
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</li> |
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<li> |
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Some bugs in <code>jscoverage-server</code>'s handling of the "chunked" |
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Transfer-Encoding have been fixed. |
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</li> |
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<li> |
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Compilation under Cygwin now uses the <code>-mno-cygwin</code> flag. |
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</li> |
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<li> |
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The wire format used for submitting coverage reports for storage by |
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<code>jscoverage-server</code> has changed. (This change will not have |
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any visible effects for most users; it will only be of interest to those |
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who have written code which parses that format.) |
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</li> |
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</ul> |
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|
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<p> |
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<a href="news.html">All news items...</a> |
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</p> |
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</div> |
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</div> |
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<div id="jscoverage-sidebar" class="yui-b"> |
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<ul> |
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<li>Home |
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<li><a href="news.html">News</a> <a href="http://siliconforks.com/jscoverage/news.xml" type="application/rss+xml" title="RSS feed for JSCoverage"><img src="feed-icon-14x14.png" alt="RSS feed"></a> |
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<li><a href="manual.html">Documentation</a> |
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<li><a href="demo.html">Demo</a> |
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<li><a href="http://siliconforks.com/jscoverage/download.html">Download</a> |
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<li><a href="faq.html">FAQ</a> |
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<li><a href="help.html">Help</a> |
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<li><a href="license.html">License</a> |
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<li><a href="links.html">Links</a> |
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<li><a href="users.html">Users</a> |
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<li><a href="http://siliconforks.com/jscoverage/bugs/">Bug tracker</a> |
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</ul> |
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</div> |
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</div> |
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<div id="ft"> |
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<address> |
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Copyright © 2007, 2008, 2009, 2010 <a href="http://siliconforks.com/"><img src="siliconforks-16x16.png" width="16" height="16" class="icon" alt="Silicon Forks"></a> <a href="http://siliconforks.com/">siliconforks.com</a><br> |
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<a href="mailto:jscoverage@siliconforks.com">jscoverage@siliconforks.com</a> |
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</address> |
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</div> |
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</div> |
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</body> |
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</html> |
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