Added simpletest and start of unit tests.

git-svn-id: http://code.elgg.org/elgg/trunk@3503 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 332 insertions, 0 deletions

diff --git a/vendors/simpletest/user_agent.php b/vendors/simpletest/user_agent.php
new file mode 100755
index 000000000..b3f6f057e
--- /dev/null
+++ b/vendors/simpletest/user_agent.php
@@ -0,0 +1,332 @@
+<?php
+/**
+ *  Base include file for SimpleTest
+ *  @package    SimpleTest
+ *  @subpackage WebTester
+ *  @version    $Id: user_agent.php 1723 2008-04-08 00:34:10Z lastcraft $
+ */
+
+/**#@+
+ *  include other SimpleTest class files
+ */
+require_once(dirname(__FILE__) . '/cookies.php');
+require_once(dirname(__FILE__) . '/http.php');
+require_once(dirname(__FILE__) . '/encoding.php');
+require_once(dirname(__FILE__) . '/authentication.php');
+/**#@-*/
+
+if (! defined('DEFAULT_MAX_REDIRECTS')) {
+    define('DEFAULT_MAX_REDIRECTS', 3);
+}
+if (! defined('DEFAULT_CONNECTION_TIMEOUT')) {
+    define('DEFAULT_CONNECTION_TIMEOUT', 15);
+}
+
+/**
+ *    Fetches web pages whilst keeping track of
+ *    cookies and authentication.
+ *    @package SimpleTest
+ *    @subpackage WebTester
+ */
+class SimpleUserAgent {
+    var $_cookie_jar;
+    var $_cookies_enabled = true;
+    var $_authenticator;
+    var $_max_redirects = DEFAULT_MAX_REDIRECTS;
+    var $_proxy = false;
+    var $_proxy_username = false;
+    var $_proxy_password = false;
+    var $_connection_timeout = DEFAULT_CONNECTION_TIMEOUT;
+    var $_additional_headers = array();
+    
+    /**
+     *    Starts with no cookies, realms or proxies.
+     *    @access public
+     */
+    function SimpleUserAgent() {
+        $this->_cookie_jar = &new SimpleCookieJar();
+        $this->_authenticator = &new SimpleAuthenticator();
+    }
+    
+    /**
+     *    Removes expired and temporary cookies as if
+     *    the browser was closed and re-opened. Authorisation
+     *    has to be obtained again as well.
+     *    @param string/integer $date   Time when session restarted.
+     *                                  If omitted then all persistent
+     *                                  cookies are kept.
+     *    @access public
+     */
+    function restart($date = false) {
+        $this->_cookie_jar->restartSession($date);
+        $this->_authenticator->restartSession();
+    }
+    
+    /**
+     *    Adds a header to every fetch.
+     *    @param string $header       Header line to add to every
+     *                                request until cleared.
+     *    @access public
+     */
+    function addHeader($header) {
+        $this->_additional_headers[] = $header;
+    }
+    
+    /**
+     *    Ages the cookies by the specified time.
+     *    @param integer $interval    Amount in seconds.
+     *    @access public
+     */
+    function ageCookies($interval) {
+        $this->_cookie_jar->agePrematurely($interval);
+    }
+    
+    /**
+     *    Sets an additional cookie. If a cookie has
+     *    the same name and path it is replaced.
+     *    @param string $name            Cookie key.
+     *    @param string $value           Value of cookie.
+     *    @param string $host            Host upon which the cookie is valid.
+     *    @param string $path            Cookie path if not host wide.
+     *    @param string $expiry          Expiry date.
+     *    @access public
+     */
+    function setCookie($name, $value, $host = false, $path = '/', $expiry = false) {
+        $this->_cookie_jar->setCookie($name, $value, $host, $path, $expiry);
+    }
+    
+    /**
+     *    Reads the most specific cookie value from the
+     *    browser cookies.
+     *    @param string $host        Host to search.
+     *    @param string $path        Applicable path.
+     *    @param string $name        Name of cookie to read.
+     *    @return string             False if not present, else the
+     *                               value as a string.
+     *    @access public
+     */
+    function getCookieValue($host, $path, $name) {
+        return $this->_cookie_jar->getCookieValue($host, $path, $name);
+    }
+    
+    /**
+     *    Reads the current cookies within the base URL.
+     *    @param string $name     Key of cookie to find.
+     *    @param SimpleUrl $base  Base URL to search from.
+     *    @return string/boolean  Null if there is no base URL, false
+     *                            if the cookie is not set.
+     *    @access public
+     */
+    function getBaseCookieValue($name, $base) {
+        if (! $base) {
+            return null;
+        }
+        return $this->getCookieValue($base->getHost(), $base->getPath(), $name);
+    }
+    
+    /**
+     *    Switches off cookie sending and recieving.
+     *    @access public
+     */
+    function ignoreCookies() {
+        $this->_cookies_enabled = false;
+    }
+    
+    /**
+     *    Switches back on the cookie sending and recieving.
+     *    @access public
+     */
+    function useCookies() {
+        $this->_cookies_enabled = true;
+    }
+    
+    /**
+     *    Sets the socket timeout for opening a connection.
+     *    @param integer $timeout      Maximum time in seconds.
+     *    @access public
+     */
+    function setConnectionTimeout($timeout) {
+        $this->_connection_timeout = $timeout;
+    }
+    
+    /**
+     *    Sets the maximum number of redirects before
+     *    a page will be loaded anyway.
+     *    @param integer $max        Most hops allowed.
+     *    @access public
+     */
+    function setMaximumRedirects($max) {
+        $this->_max_redirects = $max;
+    }
+    
+    /**
+     *    Sets proxy to use on all requests for when
+     *    testing from behind a firewall. Set URL
+     *    to false to disable.
+     *    @param string $proxy        Proxy URL.
+     *    @param string $username     Proxy username for authentication.
+     *    @param string $password     Proxy password for authentication.
+     *    @access public
+     */
+    function useProxy($proxy, $username, $password) {
+        if (! $proxy) {
+            $this->_proxy = false;
+            return;
+        }
+        if ((strncmp($proxy, 'http://', 7) != 0) && (strncmp($proxy, 'https://', 8) != 0)) {
+            $proxy = 'http://'. $proxy;
+        }
+        $this->_proxy = &new SimpleUrl($proxy);
+        $this->_proxy_username = $username;
+        $this->_proxy_password = $password;
+    }
+    
+    /**
+     *    Test to see if the redirect limit is passed.
+     *    @param integer $redirects        Count so far.
+     *    @return boolean                  True if over.
+     *    @access private
+     */
+    function _isTooManyRedirects($redirects) {
+        return ($redirects > $this->_max_redirects);
+    }
+    
+    /**
+     *    Sets the identity for the current realm.
+     *    @param string $host        Host to which realm applies.
+     *    @param string $realm       Full name of realm.
+     *    @param string $username    Username for realm.
+     *    @param string $password    Password for realm.
+     *    @access public
+     */
+    function setIdentity($host, $realm, $username, $password) {
+        $this->_authenticator->setIdentityForRealm($host, $realm, $username, $password);
+    }
+    
+    /**
+     *    Fetches a URL as a response object. Will keep trying if redirected.
+     *    It will also collect authentication realm information.
+     *    @param string/SimpleUrl $url      Target to fetch.
+     *    @param SimpleEncoding $encoding   Additional parameters for request.
+     *    @return SimpleHttpResponse        Hopefully the target page.
+     *    @access public
+     */
+    function &fetchResponse($url, $encoding) {
+        if ($encoding->getMethod() != 'POST') {
+            $url->addRequestParameters($encoding);
+            $encoding->clear();
+        }
+        $response = &$this->_fetchWhileRedirected($url, $encoding);
+        if ($headers = $response->getHeaders()) {
+            if ($headers->isChallenge()) {
+                $this->_authenticator->addRealm(
+                        $url,
+                        $headers->getAuthentication(),
+                        $headers->getRealm());
+            }
+        }
+        return $response;
+    }
+    
+    /**
+     *    Fetches the page until no longer redirected or
+     *    until the redirect limit runs out.
+     *    @param SimpleUrl $url                  Target to fetch.
+     *    @param SimpelFormEncoding $encoding    Additional parameters for request.
+     *    @return SimpleHttpResponse             Hopefully the target page.
+     *    @access private
+     */
+    function &_fetchWhileRedirected($url, $encoding) {
+        $redirects = 0;
+        do {
+            $response = &$this->_fetch($url, $encoding);
+            if ($response->isError()) {
+                return $response;
+            }
+            $headers = $response->getHeaders();
+            $location = new SimpleUrl($headers->getLocation());
+            $url = $location->makeAbsolute($url);
+            if ($this->_cookies_enabled) {
+                $headers->writeCookiesToJar($this->_cookie_jar, $url);
+            }
+            if (! $headers->isRedirect()) {
+                break;
+            }
+            $encoding = new SimpleGetEncoding();
+        } while (! $this->_isTooManyRedirects(++$redirects));
+        return $response;
+    }
+    
+    /**
+     *    Actually make the web request.
+     *    @param SimpleUrl $url                   Target to fetch.
+     *    @param SimpleFormEncoding $encoding     Additional parameters for request.
+     *    @return SimpleHttpResponse              Headers and hopefully content.
+     *    @access protected
+     */
+    function &_fetch($url, $encoding) {
+        $request = &$this->_createRequest($url, $encoding);
+        $response = &$request->fetch($this->_connection_timeout);
+        return $response;
+    }
+    
+    /**
+     *    Creates a full page request.
+     *    @param SimpleUrl $url                 Target to fetch as url object.
+     *    @param SimpleFormEncoding $encoding   POST/GET parameters.
+     *    @return SimpleHttpRequest             New request.
+     *    @access private
+     */
+    function &_createRequest($url, $encoding) {
+        $request = &$this->_createHttpRequest($url, $encoding);
+        $this->_addAdditionalHeaders($request);
+        if ($this->_cookies_enabled) {
+            $request->readCookiesFromJar($this->_cookie_jar, $url);
+        }
+        $this->_authenticator->addHeaders($request, $url);
+        return $request;
+    }
+    
+    /**
+     *    Builds the appropriate HTTP request object.
+     *    @param SimpleUrl $url                  Target to fetch as url object.
+     *    @param SimpleFormEncoding $parameters  POST/GET parameters.
+     *    @return SimpleHttpRequest              New request object.
+     *    @access protected
+     */
+    function &_createHttpRequest($url, $encoding) {
+        $request = &new SimpleHttpRequest($this->_createRoute($url), $encoding);
+        return $request;
+    }
+    
+    /**
+     *    Sets up either a direct route or via a proxy.
+     *    @param SimpleUrl $url   Target to fetch as url object.
+     *    @return SimpleRoute     Route to take to fetch URL.
+     *    @access protected
+     */
+    function &_createRoute($url) {
+        if ($this->_proxy) {
+            $route = &new SimpleProxyRoute(
+                    $url,
+                    $this->_proxy,
+                    $this->_proxy_username,
+                    $this->_proxy_password);
+        } else {
+            $route = &new SimpleRoute($url);
+        }
+        return $route;
+    }
+    
+    /**
+     *    Adds additional manual headers.
+     *    @param SimpleHttpRequest $request    Outgoing request.
+     *    @access private
+     */
+    function _addAdditionalHeaders(&$request) {
+        foreach ($this->_additional_headers as $header) {
+            $request->addHeaderLine($header);
+        }
+    }
+}
+?>
\ No newline at end of file