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| author | wei <> | 2006-07-05 07:40:57 +0000 |
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| committer | wei <> | 2006-07-05 07:40:57 +0000 |
| commit | dfa5aa5fbf11f89ce483c58016465ddc3921f082 (patch) | |
| tree | f01dd1c13d700b266695e503b3ebb6e05e591410 /tests/test_tools/simpletest/docs/en/unit_test_documentation.html | |
| parent | b6dfb6c447cf502e694d299dbda1b2e092c3312d (diff) | |
move to tests
Diffstat (limited to 'tests/test_tools/simpletest/docs/en/unit_test_documentation.html')
| -rwxr-xr-x | tests/test_tools/simpletest/docs/en/unit_test_documentation.html | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/tests/test_tools/simpletest/docs/en/unit_test_documentation.html b/tests/test_tools/simpletest/docs/en/unit_test_documentation.html new file mode 100755 index 00000000..6aa8d8a7 --- /dev/null +++ b/tests/test_tools/simpletest/docs/en/unit_test_documentation.html @@ -0,0 +1,387 @@ +<html> +<head> +<META http-equiv="Content-Type" content="text/html; charset=UTF-8"> +<title>SimpleTest for PHP regression test documentation</title> +<link rel="stylesheet" type="text/css" href="docs.css" title="Styles"> +</head> +<body> +<div class="menu_back"> +<div class="menu"> +<h2> +<a href="index.html">SimpleTest</a> +</h2> +<ul> +<li> +<a href="overview.html">Overview</a> +</li> +<li> +<span class="chosen">Unit tester</span> +</li> +<li> +<a href="group_test_documentation.html">Group tests</a> +</li> +<li> +<a href="server_stubs_documentation.html">Server stubs</a> +</li> +<li> +<a href="mock_objects_documentation.html">Mock objects</a> +</li> +<li> +<a href="partial_mocks_documentation.html">Partial mocks</a> +</li> +<li> +<a href="reporter_documentation.html">Reporting</a> +</li> +<li> +<a href="expectation_documentation.html">Expectations</a> +</li> +<li> +<a href="web_tester_documentation.html">Web tester</a> +</li> +<li> +<a href="form_testing_documentation.html">Testing forms</a> +</li> +<li> +<a href="authentication_documentation.html">Authentication</a> +</li> +<li> +<a href="browser_documentation.html">Scriptable browser</a> +</li> +</ul> +</div> +</div> +<h1>PHP Unit Test documentation</h1> +<div class="content"> + <p> +<a class="target" name="unit"> +<h2>Unit test cases</h2> +</a> +</p> + <p> + The core system is a regression testing framework built around + test cases. + A sample test case looks like this... +<pre> +<strong>class FileTestCase extends UnitTestCase { +}</strong> +</pre> + If no test name is supplied when chaining the constructor then + the class name will be taken instead. + This will be the name displayed in the test results. + </p> + <p> + Actual tests are added as methods in the test case whose names + by default start with the string "test" and + when the test case is invoked all such methods are run in + the order that PHP introspection finds them. + As many test methods can be added as needed. + For example... +<pre> +require_once('../classes/writer.php'); + +class FileTestCase extends UnitTestCase { + function FileTestCase() { + $this->UnitTestCase('File test'); + }<strong> + + function setUp() { + @unlink('../temp/test.txt'); + } + + function tearDown() { + @unlink('../temp/test.txt'); + } + + function testCreation() { + $writer = &new FileWriter('../temp/test.txt'); + $writer->write('Hello'); + $this->assertTrue(file_exists('../temp/test.txt'), 'File created'); + }</strong> +} +</pre> + The constructor is optional and usually omitted. + Without a name, the class name is taken as the name of the test case. + </p> + <p> + Our only test method at the moment is <span class="new_code">testCreation()</span> + where we check that a file has been created by our + <span class="new_code">Writer</span> object. + We could have put the <span class="new_code">unlink()</span> + code into this method as well, but by placing it in + <span class="new_code">setUp()</span> and + <span class="new_code">tearDown()</span> we can use it with + other test methods that we add. + </p> + <p> + The <span class="new_code">setUp()</span> method is run + just before each and every test method. + <span class="new_code">tearDown()</span> is run just after + each and every test method. + </p> + <p> + You can place some test case set up into the constructor to + be run once for all the methods in the test case, but + you risk test inteference that way. + This way is slightly slower, but it is safer. + Note that if you come from a JUnit background this will not + be the behaviour you are used to. + JUnit surprisingly reinstantiates the test case for each test + method to prevent such interference. + SimpleTest requires the end user to use <span class="new_code">setUp()</span>, but + supplies additional hooks for library writers. + </p> + <p> + The means of reporting test results (see below) are by a + visiting display class + that is notified by various <span class="new_code">assert...()</span> + methods. + Here is the full list for the <span class="new_code">UnitTestCase</span> + class, the default for SimpleTest... + <table> +<tbody> + <tr> +<td><span class="new_code">assertTrue($x)</span></td><td>Fail if $x is false</td> +</tr> + <tr> +<td><span class="new_code">assertFalse($x)</span></td><td>Fail if $x is true</td> +</tr> + <tr> +<td><span class="new_code">assertNull($x)</span></td><td>Fail if $x is set</td> +</tr> + <tr> +<td><span class="new_code">assertNotNull($x)</span></td><td>Fail if $x not set</td> +</tr> + <tr> +<td><span class="new_code">assertIsA($x, $t)</span></td><td>Fail if $x is not the class or type $t</td> +</tr> + <tr> +<td><span class="new_code">assertNotA($x, $t)</span></td><td>Fail if $x is of the class or type $t</td> +</tr> + <tr> +<td><span class="new_code">assertEqual($x, $y)</span></td><td>Fail if $x == $y is false</td> +</tr> + <tr> +<td><span class="new_code">assertNotEqual($x, $y)</span></td><td>Fail if $x == $y is true</td> +</tr> + <tr> +<td><span class="new_code">assertIdentical($x, $y)</span></td><td>Fail if $x == $y is false or a type mismatch</td> +</tr> + <tr> +<td><span class="new_code">assertNotIdentical($x, $y)</span></td><td>Fail if $x == $y is true and types match</td> +</tr> + <tr> +<td><span class="new_code">assertReference($x, $y)</span></td><td>Fail unless $x and $y are the same variable</td> +</tr> + <tr> +<td><span class="new_code">assertCopy($x, $y)</span></td><td>Fail if $x and $y are the same variable</td> +</tr> + <tr> +<td><span class="new_code">assertWantedPattern($p, $x)</span></td><td>Fail unless the regex $p matches $x</td> +</tr> + <tr> +<td><span class="new_code">assertNoUnwantedPattern($p, $x)</span></td><td>Fail if the regex $p matches $x</td> +</tr> + <tr> +<td><span class="new_code">assertNoErrors()</span></td><td>Fail if any PHP error occoured</td> +</tr> + <tr> +<td><span class="new_code">assertError($x)</span></td><td>Fail if no PHP error or incorrect message</td> +</tr> + <tr> +<td><span class="new_code">assertErrorPattern($p)</span></td><td>Fail unless the error matches the regex $p</td> +</tr> + </tbody> +</table> + All assertion methods can take an optional description to + label the displayed result with. + If omitted a default message is sent instead which is usually + sufficient. + This default message can still be embedded in your own message + if you include "%s" within the string. + All the assertions return true on a pass or false on failure. + </p> + <p> + Some examples... +<pre> +<strong>$variable = null; +$this->assertNull($variable, 'Should be cleared');</strong> +</pre> + ...will pass and normally show no message. + If you have + <a href="http://www.lastcraft.com/display_subclass_tutorial.php">set up the tester to display passes</a> + as well then the message will be displayed as is. +<pre> +<strong>$this->assertIdentical(0, false, 'Zero is not false [%s]');</strong> +</pre> + This will fail as it performs a type + check as well as a comparison between the two values. + The "%s" part is replaced by the default + error message that would have been shown if we had not + supplied our own. + This also allows us to nest test messages. +<pre> +<strong>$a = 1; +$b = $a; +$this->assertReference($a, $b);</strong> +</pre> + Will fail as the variable <span class="new_code">$a</span> is a copy of <span class="new_code">$b</span>. +<pre> +<strong>$this->assertWantedPattern('/hello/i', 'Hello world');</strong> +</pre> + This will pass as using a case insensitive match the string + <span class="new_code">hello</span> is contained in <span class="new_code">Hello world</span>. +<pre> +<strong>trigger_error('Disaster'); +trigger_error('Catastrophe'); +$this->assertError(); +$this->assertError('Catastrophe'); +$this->assertNoErrors();</strong> +</pre> + This one takes some explanation as in fact they all pass! + </p> + <p> + PHP errors in SimpleTest are trapped and placed in a queue. + Here the first error check catches the "Disaster" + message without checking the text and passes. + This removes the error from the queue. + The next error check tests not only the existence of the error, + but also the text which here matches so another pass. + With the queue now empty the last test will pass as well. + If any unchecked errors are left at the end of a test method then + an exception will be reported in the test. + Note that SimpleTest cannot catch compile time PHP errors. + </p> + <p> + The test cases also have some convenience methods for debugging + code or extending the suite... + <table> +<tbody> + <tr> +<td><span class="new_code">setUp()</span></td><td>Runs this before each test method</td> +</tr> + <tr> +<td><span class="new_code">tearDown()</span></td><td>Runs this after each test method</td> +</tr> + <tr> +<td><span class="new_code">pass()</span></td><td>Sends a test pass</td> +</tr> + <tr> +<td><span class="new_code">fail()</span></td><td>Sends a test failure</td> +</tr> + <tr> +<td><span class="new_code">error()</span></td><td>Sends an exception event</td> +</tr> + <tr> +<td><span class="new_code">sendMessage()</span></td><td>Sends a status message to those displays that support it</td> +</tr> + <tr> +<td><span class="new_code">signal($type, $payload)</span></td><td>Sends a user defined message to the test reporter</td> +</tr> + <tr> +<td><span class="new_code">dump($var)</span></td><td>Does a formatted <span class="new_code">print_r()</span> for quick and dirty debugging</td> +</tr> + <tr> +<td><span class="new_code">swallowErrors()</span></td><td>Clears the error queue</td> +</tr> + </tbody> +</table> + </p> + + <p> +<a class="target" name="extending_unit"> +<h2>Extending test cases</h2> +</a> +</p> + <p> + Of course additional test methods can be added to create + specific types of test case too so as to extend framework... +<pre> +require_once('simpletest/unit_tester.php'); +<strong> +class FileTester extends UnitTestCase { + function FileTester($name = false) { + $this->UnitTestCase($name); + } + + function assertFileExists($filename, $message = '%s') { + $this->assertTrue( + file_exists($filename), + sprintf($message, 'File [$filename] existence check')); + }</strong> +} +</pre> + Here the SimpleTest library is held in a folder called + <em>simpletest</em> that is local. + Substitute your own path for this. + </p> + <p> + This new case can be now be inherited just like + a normal test case... +<pre> +class FileTestCase extends <strong>FileTester</strong> { + + function setUp() { + @unlink('../temp/test.txt'); + } + + function tearDown() { + @unlink('../temp/test.txt'); + } + + function testCreation() { + $writer = &new FileWriter('../temp/test.txt'); + $writer->write('Hello');<strong> + $this->assertFileExists('../temp/test.txt');</strong> + } +} +</pre> + </p> + <p> + If you want a test case that does not have all of the + <span class="new_code">UnitTestCase</span> assertions, + only your own and <span class="new_code">assertTrue()</span>, + you need to extend the <span class="new_code">SimpleTestCase</span> + class instead. + It is found in <em>simple_test.php</em> rather than + <em>unit_tester.php</em>. + See <a href="group_test_documentation.html">later</a> if you + want to incorporate other unit tester's + test cases in your test suites. + </p> + + <p> +<a class="target" name="running_unit"> +<h2>Running a single test case</h2> +</a> +</p> + <p> + You won't often run single test cases except when bashing + away at a module that is having difficulty and you don't + want to upset the main test suite. + Here is the scaffolding needed to run the a lone test case... +<pre> +<?php + require_once('simpletest/unit_tester.php');<strong> + require_once('simpletest/reporter.php');</strong> + require_once('../classes/writer.php'); + + class FileTestCase extends UnitTestCase { + function FileTestCase() { + $this->UnitTestCase('File test'); + } + }<strong> + + $test = &new FileTestCase(); + $test->run(new HtmlReporter());</strong> +?> +</pre> + This script will run as is, but will output zero passes + and zero failures until test methods are added. + </p> + + </div> +<div class="copyright"> + Copyright<br>Marcus Baker, Jason Sweat, Perrick Penet 2004 + </div> +</body> +</html> |