More SQL command (drop table, drop database)
delete, select & insert upgraded More utility function (node to array, arrayToNode) XMLDB special move command PHP Unit Test
This commit is contained in:
Chouchen
447
simpletest/docs/en/browser_documentation.html
Normal file
447
simpletest/docs/en/browser_documentation.html
Normal file
@@ -0,0 +1,447 @@
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
||||
<title>SimpleTest documentation for the scriptable web browser component</title>
|
||||
<link rel="stylesheet" type="text/css" href="docs.css" title="Styles">
|
||||
</head>
|
||||
<body>
|
||||
<div class="menu_back"><div class="menu">
|
||||
<a href="index.html">SimpleTest</a>
|
||||
|
|
||||
<a href="overview.html">Overview</a>
|
||||
|
|
||||
<a href="unit_test_documentation.html">Unit tester</a>
|
||||
|
|
||||
<a href="group_test_documentation.html">Group tests</a>
|
||||
|
|
||||
<a href="mock_objects_documentation.html">Mock objects</a>
|
||||
|
|
||||
<a href="partial_mocks_documentation.html">Partial mocks</a>
|
||||
|
|
||||
<a href="reporter_documentation.html">Reporting</a>
|
||||
|
|
||||
<a href="expectation_documentation.html">Expectations</a>
|
||||
|
|
||||
<a href="web_tester_documentation.html">Web tester</a>
|
||||
|
|
||||
<a href="form_testing_documentation.html">Testing forms</a>
|
||||
|
|
||||
<a href="authentication_documentation.html">Authentication</a>
|
||||
|
|
||||
<span class="chosen">Scriptable browser</span>
|
||||
</div></div>
|
||||
<h1>PHP Scriptable Web Browser</h1>
|
||||
This page...
|
||||
<ul>
|
||||
<li>
|
||||
Using the bundled <a href="#scripting">web browser in scripts</a>
|
||||
</li>
|
||||
<li>
|
||||
<a href="#debug">Debugging</a> failed pages
|
||||
</li>
|
||||
<li>
|
||||
Complex <a href="#unit">tests with multiple web browsers</a>
|
||||
</li>
|
||||
</ul>
|
||||
<div class="content">
|
||||
|
||||
<p>
|
||||
SimpleTest's web browser component can be used not just
|
||||
outside of the <span class="new_code">WebTestCase</span> class, but also
|
||||
independently of the SimpleTest framework itself.
|
||||
</p>
|
||||
|
||||
<p><a class="target" name="scripting"><h2>The Scriptable Browser</h2></a></p>
|
||||
<p>
|
||||
You can use the web browser in PHP scripts to confirm
|
||||
services are up and running, or to extract information
|
||||
from them at a regular basis.
|
||||
For example, here is a small script to extract the current number of
|
||||
open PHP 5 bugs from the <a href="http://www.php.net/">PHP web site</a>...
|
||||
<pre>
|
||||
<strong><?php
|
||||
require_once('simpletest/browser.php');
|
||||
|
||||
$browser = &new SimpleBrowser();
|
||||
$browser->get('http://php.net/');
|
||||
$browser->click('reporting bugs');
|
||||
$browser->click('statistics');
|
||||
$page = $browser->click('PHP 5 bugs only');
|
||||
preg_match('/status=Open.*?by=Any.*?(\d+)<\/a>/', $page, $matches);
|
||||
print $matches[1];
|
||||
?></strong>
|
||||
</pre>
|
||||
There are simpler methods to do this particular example in PHP
|
||||
of course.
|
||||
For example you can just use the PHP <span class="new_code">file()</span>
|
||||
command against what here is a pretty fixed page.
|
||||
However, using the web browser for scripts allows authentication,
|
||||
correct handling of cookies, automatic loading of frames, redirects,
|
||||
form submission and the ability to examine the page headers.
|
||||
Such methods are fragile against a site that is constantly
|
||||
evolving and you would want a more direct way of accessing
|
||||
data in a permanent set up, but for simple tasks this can provide
|
||||
a very rapid solution.
|
||||
</p>
|
||||
<p>
|
||||
All of the navigation methods used in the
|
||||
<a href="web_tester_documentation.html">WebTestCase</a>
|
||||
are present in the <span class="new_code">SimpleBrowser</span> class, but
|
||||
the assertions are replaced with simpler accessors.
|
||||
Here is a full list of the page navigation methods...
|
||||
<table><tbody>
|
||||
<tr>
|
||||
<td><span class="new_code">addHeader($header)</span></td>
|
||||
<td>Adds a header to every fetch</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">useProxy($proxy, $username, $password)</span></td>
|
||||
<td>Use this proxy from now on</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">head($url, $parameters)</span></td>
|
||||
<td>Perform a HEAD request</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">get($url, $parameters)</span></td>
|
||||
<td>Fetch a page with GET</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">post($url, $parameters)</span></td>
|
||||
<td>Fetch a page with POST</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickLink($label)</span></td>
|
||||
<td>Follows a link by label</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickLinkById($id)</span></td>
|
||||
<td>Follows a link by attribute</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getUrl()</span></td>
|
||||
<td>Current URL of page or frame</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getTitle()</span></td>
|
||||
<td>Page title</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getContent()</span></td>
|
||||
<td>Raw page or frame</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getContentAsText()</span></td>
|
||||
<td>HTML removed except for alt text</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">retry()</span></td>
|
||||
<td>Repeat the last request</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">back()</span></td>
|
||||
<td>Use the browser back button</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">forward()</span></td>
|
||||
<td>Use the browser forward button</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">authenticate($username, $password)</span></td>
|
||||
<td>Retry page or frame after a 401 response</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">restart($date)</span></td>
|
||||
<td>Restarts the browser for a new session</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">ageCookies($interval)</span></td>
|
||||
<td>Ages the cookies by the specified time</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">setCookie($name, $value)</span></td>
|
||||
<td>Sets an additional cookie</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getCookieValue($host, $path, $name)</span></td>
|
||||
<td>Reads the most specific cookie</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getCurrentCookieValue($name)</span></td>
|
||||
<td>Reads cookie for the current context</td>
|
||||
</tr>
|
||||
</tbody></table>
|
||||
The methods <span class="new_code">SimpleBrowser::useProxy()</span> and
|
||||
<span class="new_code">SimpleBrowser::addHeader()</span> are special.
|
||||
Once called they continue to apply to all subsequent fetches.
|
||||
</p>
|
||||
<p>
|
||||
Navigating forms is similar to the
|
||||
<a href="form_testing_documentation.html">WebTestCase form navigation</a>...
|
||||
<table><tbody>
|
||||
<tr>
|
||||
<td><span class="new_code">setField($name, $value)</span></td>
|
||||
<td>Sets all form fields with that name</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">setFieldById($id, $value)</span></td>
|
||||
<td>Sets all form fields with that id</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getField($name)</span></td>
|
||||
<td>Accessor for a form element value</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getFieldById($id)</span></td>
|
||||
<td>Accessor for a form element value</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickSubmit($label)</span></td>
|
||||
<td>Submits form by button label</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickSubmitByName($name)</span></td>
|
||||
<td>Submits form by button attribute</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickSubmitById($id)</span></td>
|
||||
<td>Submits form by button attribute</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickImage($label, $x, $y)</span></td>
|
||||
<td>Clicks an input tag of type image by title or alt text</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickImageByName($name, $x, $y)</span></td>
|
||||
<td>Clicks an input tag of type image by name</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clickImageById($id, $x, $y)</span></td>
|
||||
<td>Clicks an input tag of type image by ID attribute</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">submitFormById($id)</span></td>
|
||||
<td>Submits by the form tag attribute</td>
|
||||
</tr>
|
||||
</tbody></table>
|
||||
At the moment there aren't any methods to list available forms
|
||||
and fields.
|
||||
This will probably be added to later versions of SimpleTest.
|
||||
</p>
|
||||
<p>
|
||||
Within a page, individual frames can be selected.
|
||||
If no selection is made then all the frames are merged together
|
||||
in one large conceptual page.
|
||||
The content of the current page will be a concatenation of all of the
|
||||
frames in the order that they were specified in the "frameset"
|
||||
tags.
|
||||
<table><tbody>
|
||||
<tr>
|
||||
<td><span class="new_code">getFrames()</span></td>
|
||||
<td>A dump of the current frame structure</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getFrameFocus()</span></td>
|
||||
<td>Current frame label or index</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">setFrameFocusByIndex($choice)</span></td>
|
||||
<td>Select a frame numbered from 1</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">setFrameFocus($name)</span></td>
|
||||
<td>Select frame by label</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">clearFrameFocus()</span></td>
|
||||
<td>Treat all the frames as a single page</td>
|
||||
</tr>
|
||||
</tbody></table>
|
||||
When focused on a single frame, the content will come from
|
||||
that frame only.
|
||||
This includes links to click and forms to submit.
|
||||
</p>
|
||||
|
||||
<p><a class="target" name="debug"><h2>What went wrong?</h2></a></p>
|
||||
<p>
|
||||
All of this functionality is great when we actually manage to fetch pages,
|
||||
but that doesn't always happen.
|
||||
To help figure out what went wrong, the browser has some methods to
|
||||
aid in debugging...
|
||||
<table><tbody>
|
||||
<tr>
|
||||
<td><span class="new_code">setConnectionTimeout($timeout)</span></td>
|
||||
<td>Close the socket on overrun</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getRequest()</span></td>
|
||||
<td>Raw request header of page or frame</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getHeaders()</span></td>
|
||||
<td>Raw response header of page or frame</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getTransportError()</span></td>
|
||||
<td>Any socket level errors in the last fetch</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getResponseCode()</span></td>
|
||||
<td>HTTP response of page or frame</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getMimeType()</span></td>
|
||||
<td>Mime type of page or frame</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getAuthentication()</span></td>
|
||||
<td>Authentication type in 401 challenge header</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">getRealm()</span></td>
|
||||
<td>Authentication realm in 401 challenge header</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">setMaximumRedirects($max)</span></td>
|
||||
<td>Number of redirects before page is loaded anyway</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">setMaximumNestedFrames($max)</span></td>
|
||||
<td>Protection against recursive framesets</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">ignoreFrames()</span></td>
|
||||
<td>Disables frames support</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">useFrames()</span></td>
|
||||
<td>Enables frames support</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">ignoreCookies()</span></td>
|
||||
<td>Disables sending and receiving of cookies</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><span class="new_code">useCookies()</span></td>
|
||||
<td>Enables cookie support</td>
|
||||
</tr>
|
||||
</tbody></table>
|
||||
The methods <span class="new_code">SimpleBrowser::setConnectionTimeout()</span>
|
||||
<span class="new_code">SimpleBrowser::setMaximumRedirects()</span>,
|
||||
<span class="new_code">SimpleBrowser::setMaximumNestedFrames()</span>,
|
||||
<span class="new_code">SimpleBrowser::ignoreFrames()</span>,
|
||||
<span class="new_code">SimpleBrowser::useFrames()</span>,
|
||||
<span class="new_code">SimpleBrowser::ignoreCookies()</span> and
|
||||
<span class="new_code">SimpleBrowser::useCokies()</span> continue to apply
|
||||
to every subsequent request.
|
||||
The other methods are frames aware.
|
||||
This means that if you have an individual frame that is not
|
||||
loading, navigate to it using <span class="new_code">SimpleBrowser::setFrameFocus()</span>
|
||||
and you can then use <span class="new_code">SimpleBrowser::getRequest()</span>, etc to
|
||||
see what happened.
|
||||
</p>
|
||||
|
||||
<p><a class="target" name="unit"><h2>Complex unit tests with multiple browsers</h2></a></p>
|
||||
<p>
|
||||
Anything that could be done in a
|
||||
<a href="web_tester_documentation.html">WebTestCase</a> can
|
||||
now be done in a <a href="unit_tester_documentation.html">UnitTestCase</a>.
|
||||
This means that we can freely mix domain object testing with the
|
||||
web interface...
|
||||
<pre>
|
||||
<strong>class TestOfRegistration extends UnitTestCase {
|
||||
function testNewUserAddedToAuthenticator() {</strong>
|
||||
$browser = &new SimpleBrowser();
|
||||
$browser->get('http://my-site.com/register.php');
|
||||
$browser->setField('email', 'me@here');
|
||||
$browser->setField('password', 'Secret');
|
||||
$browser->click('Register');
|
||||
<strong>
|
||||
$authenticator = &new Authenticator();
|
||||
$member = &$authenticator->findByEmail('me@here');
|
||||
$this->assertEqual($member->getPassword(), 'Secret');
|
||||
}
|
||||
}</strong>
|
||||
</pre>
|
||||
While this may be a useful temporary expediency, I am not a fan
|
||||
of this type of testing.
|
||||
The testing has cut across application layers, make it twice as
|
||||
likely it will need refactoring when the code changes.
|
||||
</p>
|
||||
<p>
|
||||
A more useful case of where using the browser directly can be helpful
|
||||
is where the <span class="new_code">WebTestCase</span> cannot cope.
|
||||
An example is where two browsers are needed at the same time.
|
||||
</p>
|
||||
<p>
|
||||
For example, say we want to disallow multiple simultaneous
|
||||
usage of a site with the same username.
|
||||
This test case will do the job...
|
||||
<pre>
|
||||
class TestOfSecurity extends UnitTestCase {
|
||||
function testNoMultipleLoginsFromSameUser() {<strong>
|
||||
$first = &new SimpleBrowser();
|
||||
$first->get('http://my-site.com/login.php');
|
||||
$first->setField('name', 'Me');
|
||||
$first->setField('password', 'Secret');
|
||||
$first->click('Enter');
|
||||
$this->assertEqual($first->getTitle(), 'Welcome');
|
||||
|
||||
$second = &new SimpleBrowser();
|
||||
$second->get('http://my-site.com/login.php');
|
||||
$second->setField('name', 'Me');
|
||||
$second->setField('password', 'Secret');
|
||||
$second->click('Enter');
|
||||
$this->assertEqual($second->getTitle(), 'Access Denied');</strong>
|
||||
}
|
||||
}
|
||||
</pre>
|
||||
You can also use the <span class="new_code">SimpleBrowser</span> class
|
||||
directly when you want to write test cases using a different
|
||||
test tool than SimpleTest.
|
||||
</p>
|
||||
|
||||
</div>
|
||||
References and related information...
|
||||
<ul>
|
||||
<li>
|
||||
SimpleTest project page on <a href="http://sourceforge.net/projects/simpletest/">SourceForge</a>.
|
||||
</li>
|
||||
<li>
|
||||
SimpleTest download page on <a href="http://www.lastcraft.com/simple_test.php">LastCraft</a>.
|
||||
</li>
|
||||
<li>
|
||||
The <a href="http://simpletest.org/api/">developer's API for SimpleTest</a>
|
||||
gives full detail on the classes and assertions available.
|
||||
</li>
|
||||
</ul>
|
||||
<div class="menu_back"><div class="menu">
|
||||
<a href="index.html">SimpleTest</a>
|
||||
|
|
||||
<a href="overview.html">Overview</a>
|
||||
|
|
||||
<a href="unit_test_documentation.html">Unit tester</a>
|
||||
|
|
||||
<a href="group_test_documentation.html">Group tests</a>
|
||||
|
|
||||
<a href="mock_objects_documentation.html">Mock objects</a>
|
||||
|
|
||||
<a href="partial_mocks_documentation.html">Partial mocks</a>
|
||||
|
|
||||
<a href="reporter_documentation.html">Reporting</a>
|
||||
|
|
||||
<a href="expectation_documentation.html">Expectations</a>
|
||||
|
|
||||
<a href="web_tester_documentation.html">Web tester</a>
|
||||
|
|
||||
<a href="form_testing_documentation.html">Testing forms</a>
|
||||
|
|
||||
<a href="authentication_documentation.html">Authentication</a>
|
||||
|
|
||||
<span class="chosen">Scriptable browser</span>
|
||||
</div></div>
|
||||
<div class="copyright">
|
||||
Copyright<br>Marcus Baker 2006
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user