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| author | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
|---|---|---|
| committer | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
| commit | f4fb1db458fab52d0493ead52c9ea7e01206eaa7 (patch) | |
| tree | c549600f342f4d3f0df75a2f2f7c265be0f1cc72 /user_guide/libraries/unit_testing.html | |
| parent | c4dd200c1155a118afa32cd91d9bd67bc243f83a (diff) | |
Moved tutorial to new user guide directory.
Diffstat (limited to 'user_guide/libraries/unit_testing.html')
| -rw-r--r-- | user_guide/libraries/unit_testing.html | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/user_guide/libraries/unit_testing.html b/user_guide/libraries/unit_testing.html deleted file mode 100644 index 5ebec0cbf..000000000 --- a/user_guide/libraries/unit_testing.html +++ /dev/null @@ -1,226 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> - -<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> -<title>Unit Testing Class : CodeIgniter User Guide</title> - -<style type='text/css' media='all'>@import url('../userguide.css');</style> -<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /> - -<script type="text/javascript" src="../nav/nav.js"></script> -<script type="text/javascript" src="../nav/prototype.lite.js"></script> -<script type="text/javascript" src="../nav/moo.fx.js"></script> -<script type="text/javascript" src="../nav/user_guide_menu.js"></script> - -<meta http-equiv='expires' content='-1' /> -<meta http-equiv= 'pragma' content='no-cache' /> -<meta name='robots' content='all' /> -<meta name='author' content='ExpressionEngine Dev Team' /> -<meta name='description' content='CodeIgniter User Guide' /> - -</head> -<body> - -<!-- START NAVIGATION --> -<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div> -<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div> -<div id="masthead"> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td><h1>CodeIgniter User Guide Version 2.0.3</h1></td> -<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> -</tr> -</table> -</div> -<!-- END NAVIGATION --> - - -<!-- START BREADCRUMB --> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td id="breadcrumb"> -<a href="http://codeigniter.com/">CodeIgniter Home</a> › -<a href="../index.html">User Guide Home</a> › -Unit Testing Class -</td> -<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> -</tr> -</table> -<!-- END BREADCRUMB --> - -<br clear="all" /> - - -<!-- START CONTENT --> -<div id="content"> - - -<h1>Unit Testing Class</h1> - -<p>Unit testing is an approach to software development in which tests are written for each function in your application. -If you are not familiar with the concept you might do a little googling on the subject.</p> - -<p>CodeIgniter's Unit Test class is quite simple, consisting of an evaluation function and two result functions. -It's not intended to be a full-blown test suite but rather a simple mechanism to evaluate your code -to determine if it is producing the correct data type and result. -</p> - - -<h2>Initializing the Class</h2> - -<p>Like most other classes in CodeIgniter, the Unit Test class is initialized in your controller using the <dfn>$this->load->library</dfn> function:</p> - -<code>$this->load->library('unit_test');</code> -<p>Once loaded, the Unit Test object will be available using: <dfn>$this->unit</dfn></p> - - -<h2>Running Tests</h2> - -<p>Running a test involves supplying a test and an expected result to the following function:</p> - -<h2>$this->unit->run( <var>test</var>, <var>expected result</var>, '<var>test name</var>', '<var>notes</var>');</h2> - -<p>Where <var>test</var> is the result of the code you wish to test, <var>expected result</var> is the data type you expect, -<var>test name</var> is an optional name you can give your test, and <var>notes</var> are optional notes. Example:</p> - -<code>$test = 1 + 1;<br /> -<br /> -$expected_result = 2;<br /> -<br /> -$test_name = 'Adds one plus one';<br /> -<br /> -$this->unit->run($test, $expected_result, $test_name);</code> - -<p>The expected result you supply can either be a literal match, or a data type match. Here's an example of a literal:</p> - -<code>$this->unit->run('Foo', 'Foo');</code> - -<p>Here is an example of a data type match:</p> - -<code>$this->unit->run('Foo', 'is_string');</code> - -<p>Notice the use of "is_string" in the second parameter? This tells the function to evaluate whether your test is producing a string -as the result. Here is a list of allowed comparison types:</p> - -<ul> -<li>is_object</li> -<li>is_string</li> -<li>is_bool</li> -<li>is_true</li> -<li>is_false</li> -<li>is_int</li> -<li>is_numeric</li> -<li>is_float</li> -<li>is_double</li> -<li>is_array</li> -<li>is_null</li> -</ul> - - -<h2>Generating Reports</h2> - -<p>You can either display results after each test, or your can run several tests and generate a report at the end. -To show a report directly simply echo or return the <var>run</var> function:</p> - -<code>echo $this->unit->run($test, $expected_result);</code> - -<p>To run a full report of all tests, use this:</p> - -<code>echo $this->unit->report();</code> - -<p>The report will be formatted in an HTML table for viewing. If you prefer the raw data you can retrieve an array using:</p> - -<code>echo $this->unit->result();</code> - - -<h2>Strict Mode</h2> - -<p>By default the unit test class evaluates literal matches loosely. Consider this example:</p> - -<code>$this->unit->run(1, TRUE);</code> - -<p>The test is evaluating an integer, but the expected result is a boolean. PHP, however, due to it's loose data-typing -will evaluate the above code as TRUE using a normal equality test:</p> - -<code>if (1 == TRUE) echo 'This evaluates as true';</code> - -<p>If you prefer, you can put the unit test class in to strict mode, which will compare the data type as well as the value:</p> - -<code>if (1 === TRUE) echo 'This evaluates as FALSE';</code> - -<p>To enable strict mode use this:</p> - -<code>$this->unit->use_strict(TRUE);</code> - -<h2>Enabling/Disabling Unit Testing</h2> - -<p>If you would like to leave some testing in place in your scripts, but not have it run unless you need it, you can disable -unit testing using:</p> - -<code>$this->unit->active(FALSE)</code> - -<h2>Unit Test Display</h2> - -<p>When your unit test results display, the following items show by default:</p> - -<ul> - <li>Test Name (test_name)</li> - <li>Test Datatype (test_datatype)</li> - <li>Expected Datatype (res_datatype)</li> - <li>Result (result)</li> - <li>File Name (file)</li> - <li>Line Number (line)</li> - <li>Any notes you entered for the test (notes)</li> -</ul> - -You can customize which of these items get displayed by using <kbd>$this->unit->set_items()</kbd>. For example, if you only wanted the test name and the result displayed:</p> - -<h3>Customizing displayed tests</h3> - -<code> - $this->unit->set_test_items(array('test_name', 'result')); -</code> - -<h3>Creating a Template</h3> - -<p>If you would like your test results formatted differently then the default you can set your own template. Here is an -example of a simple template. Note the required pseudo-variables:</p> - -<code> -$str = '<br /> -<table border="0" cellpadding="4" cellspacing="1"><br /> - <kbd>{rows}</kbd><br /> - <tr><br /> - <td><kbd>{item}</kbd></td><br /> - <td><kbd>{result}</kbd></td><br /> - </tr><br /> - <kbd>{/rows}</kbd><br /> -</table>';<br /> -<br /> -$this->unit->set_template($str); -</code> - -<p class="important"><strong>Note:</strong> Your template must be declared <strong>before</strong> running the unit test process.</p> - - - - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="typography.html">Typography Class</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="uri.html">URI Class</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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