silverstripe-framework/dev/FunctionalTest.php

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<?php
/**
* Sapphire-specific testing object designed to support functional testing of your web app. It simulates get/post
* requests, form submission, and can validate resulting HTML, looking up content by CSS selector.
*
* The example below shows how it works.
*
* <code>
* function testMyForm() {
* // Visit a URL
* $this->get("your/url");
*
* // Submit a form on the page that you get in response
* $this->submitForm("MyForm_ID", array("Email" => "invalid email ^&*&^"));
*
* // Validate the content that is returned
* $this->assertExactMatchBySelector("#MyForm_ID p.error", array("That email address is invalid."));
* }
* </code>
*
* @package sapphire
* @subpackage testing
*/
class FunctionalTest extends SapphireTest {
/**
* Set this to true on your sub-class to disable the use of themes in this test.
* This can be handy for functional testing of modules without having to worry about whether a user has changed
* behaviour by replacing the theme.
*/
static $disable_themes = false;
/**
* Set this to true on your sub-class to use the draft site by default for every test in this class.
*/
static $use_draft_site = false;
protected $mainSession = null;
/**
* CSSContentParser for the most recently requested page.
*/
protected $cssParser = null;
private $originalTheme = null;
/**
* If this is true, then 30x Location headers will be automatically followed.
* If not, then you will have to manaully call $this->mainSession->followRedirection() to follow them. However, this will let you inspect
* the intermediary headers
*/
protected $autoFollowRedirection = true;
/**
* Returns the {@link Session} object for this test
*/
function session() {
return $this->mainSession->session();
}
function setUp() {
parent::setUp();
$this->mainSession = new TestSession();
// Disable theme, if necessary
if($this->stat('disable_themes')) {
$this->originalTheme = SSViewer::current_theme();
SSViewer::set_theme(null);
}
// Switch to draft site, if necessary
if($this->stat('use_draft_site')) {
$this->useDraftSite();
}
}
function tearDown() {
parent::tearDown();
unset($this->mainSession);
// Re-enable theme, if previously disabled
if($this->stat('disable_themes')) {
SSViewer::set_theme($this->originalTheme);
}
}
/**
* Submit a get request
* @uses Director::test()
*/
function get($url, $session = null, $headers = null, $cookies = null) {
$this->cssParser = null;
$response = $this->mainSession->get($url, $session, $headers, $cookies);
if($this->autoFollowRedirection && is_object($response) && $response->getHeader('Location')) $response = $this->mainSession->followRedirection();
return $response;
}
/**
* Submit a post request
* @uses Director::test()
*/
function post($url, $data, $headers = null, $session = null, $body = null, $cookies = null) {
$this->cssParser = null;
$response = $this->mainSession->post($url, $data, $headers, $session, $body, $cookies);
if($this->autoFollowRedirection && is_object($response) && $response->getHeader('Location')) $response = $this->mainSession->followRedirection();
return $response;
}
/**
* Submit the form with the given HTML ID, filling it out with the given data.
* Acts on the most recent response
*/
function submitForm($formID, $button = null, $data = array()) {
$this->cssParser = null;
$response = $this->mainSession->submitForm($formID, $button, $data);
if($this->autoFollowRedirection && is_object($response) && $response->getHeader('Location')) $response = $this->mainSession->followRedirection();
return $response;
}
/**
* Return the most recent content
*/
function content() {
return $this->mainSession->lastContent();
}
/**
* Find an attribute in a SimpleXMLElement object by name.
* @param SimpleXMLElement object
* @param string $attribute Name of attribute to find
* @return SimpleXMLElement object of the attribute
*/
function findAttribute($object, $attribute) {
$found = false;
foreach($object->attributes() as $a => $b) {
if($a == $attribute) {
$found = $b;
}
}
return $found;
}
/**
* Return a CSSContentParser for the most recent content.
*/
function cssParser() {
if(!$this->cssParser) $this->cssParser = new CSSContentParser($this->mainSession->lastContent());
return $this->cssParser;
}
/**
* Assert that the most recently queried page contains a number of content tags specified by a CSS selector.
* The given CSS selector will be applied to the HTML of the most recent page. The content of every matching tag
* will be examined. The assertion fails if one of the expectedMatches fails to appear.
*
* Note: &nbsp; characters are stripped from the content; make sure that your assertions take this into account.
*
* @param string $selector A basic CSS selector, e.g. 'li.jobs h3'
* @param array|string $expectedMatches The content of at least one of the matched tags
* @throws PHPUnit_Framework_AssertionFailedError
* @return boolean
*/
function assertPartialMatchBySelector($selector, $expectedMatches) {
if(is_string($expectedMatches)) $expectedMatches = array($expectedMatches);
$items = $this->cssParser()->getBySelector($selector);
$actuals = array();
if($items) foreach($items as $item) $actuals[trim(preg_replace("/[ \n\r\t]+/", " ", $item. ''))] = true;
foreach($expectedMatches as $match) {
if(!isset($actuals[$match])) {
throw new PHPUnit_Framework_AssertionFailedError(
"Failed asserting the CSS selector '$selector' has a partial match to the expected elements:\n'" . implode("'\n'", $expectedMatches) . "'\n\n"
. "Instead the following elements were found:\n'" . implode("'\n'", array_keys($actuals)) . "'"
);
return false;
}
}
return true;
}
/**
* Assert that the most recently queried page contains a number of content tags specified by a CSS selector.
* The given CSS selector will be applied to the HTML of the most recent page. The full HTML of every matching tag
* will be examined. The assertion fails if one of the expectedMatches fails to appear.
*
* Note: &nbsp; characters are stripped from the content; make sure that your assertions take this into account.
*
* @param string $selector A basic CSS selector, e.g. 'li.jobs h3'
* @param array|string $expectedMatches The content of *all* matching tags as an array
* @throws PHPUnit_Framework_AssertionFailedError
* @return boolean
*/
function assertExactMatchBySelector($selector, $expectedMatches) {
if(is_string($expectedMatches)) $expectedMatches = array($expectedMatches);
$items = $this->cssParser()->getBySelector($selector);
$actuals = array();
if($items) foreach($items as $item) $actuals[] = trim(preg_replace("/[ \n\r\t]+/", " ", $item. ''));
if($expectedMatches != $actuals) {
throw new PHPUnit_Framework_AssertionFailedError(
"Failed asserting the CSS selector '$selector' has an exact match to the expected elements:\n'" . implode("'\n'", $expectedMatches) . "'\n\n"
. "Instead the following elements were found:\n'" . implode("'\n'", $actuals) . "'"
);
return false;
}
return true;
}
/**
* Assert that the most recently queried page contains a number of content tags specified by a CSS selector.
* The given CSS selector will be applied to the HTML of the most recent page. The content of every matching tag
* will be examined. The assertion fails if one of the expectedMatches fails to appear.
*
* Note: &nbsp; characters are stripped from the content; make sure that your assertions take this into account.
*
* @param string $selector A basic CSS selector, e.g. 'li.jobs h3'
* @param array|string $expectedMatches The content of at least one of the matched tags
* @throws PHPUnit_Framework_AssertionFailedError
* @return boolean
*/
function assertPartialHTMLMatchBySelector($selector, $expectedMatches) {
if(is_string($expectedMatches)) $expectedMatches = array($expectedMatches);
$items = $this->cssParser()->getBySelector($selector);
$actuals = array();
if($items) foreach($items as $item) $actuals[$item->asXML()] = true;
foreach($expectedMatches as $match) {
if(!isset($actuals[$match])) {
throw new PHPUnit_Framework_AssertionFailedError(
"Failed asserting the CSS selector '$selector' has a partial match to the expected elements:\n'" . implode("'\n'", $expectedMatches) . "'\n\n"
. "Instead the following elements were found:\n'" . implode("'\n'", array_keys($actuals)) . "'"
);
return false;
}
}
return true;
}
/**
* Assert that the most recently queried page contains a number of content tags specified by a CSS selector.
* The given CSS selector will be applied to the HTML of the most recent page. The full HTML of every matching tag
* will be examined. The assertion fails if one of the expectedMatches fails to appear.
*
* Note: &nbsp; characters are stripped from the content; make sure that your assertions take this into account.
*
* @param string $selector A basic CSS selector, e.g. 'li.jobs h3'
* @param array|string $expectedMatches The content of *all* matched tags as an array
* @throws PHPUnit_Framework_AssertionFailedError
* @return boolean
*/
function assertExactHTMLMatchBySelector($selector, $expectedMatches) {
$items = $this->cssParser()->getBySelector($selector);
$actuals = array();
if($items) foreach($items as $item) $actuals[] = $item->asXML();
if($expectedMatches != $actuals) {
throw new PHPUnit_Framework_AssertionFailedError(
"Failed asserting the CSS selector '$selector' has an exact match to the expected elements:\n'" . implode("'\n'", $expectedMatches) . "'\n\n"
. "Instead the following elements were found:\n'" . implode("'\n'", $actuals) . "'"
);
}
}
/**
* Log in as the given member
* @param $member The ID, fixture codename, or Member object of the member that you want to log in
*/
function logInAs($member) {
if(is_object($member)) $memberID = $member->ID;
elseif(is_numeric($member)) $memberID = $member;
else $memberID = $this->idFromFixture('Member', $member);
$this->session()->inst_set('loggedInAs', $memberID);
}
/**
* Use the draft (stage) site for testing.
* This is helpful if you're not testing publication functionality and don't want "stage management" cluttering your test.
*/
function useDraftSite() {
$this->session()->inst_set('currentStage', 'Stage');
$this->session()->inst_set('unsecuredDraftSite', true);
}
/**
* Return a static variable from this class.
* Gets around PHP's lack of late static binding.
*/
function stat($varName) {
$className = get_class($this);
return eval("return {$className}::\$$varName;");
}
}