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<?php
// This autoloader provide convinient way to working with mock object
// make the test looks natural. This autoloader support cascade file loading as well
// within mocks directory.
//
// Prototype :
//
// $mock_table = new Mock_Libraries_Table(); // Will load ./mocks/libraries/table.php
// $mock_database_driver = new Mock_Database_Driver(); // Will load ./mocks/database/driver.php
// and so on...
function autoload($class)
{
$dir = realpath(dirname(__FILE__)).DIRECTORY_SEPARATOR;
$ci_core = array(
'Benchmark', 'Config', 'Controller',
'Exceptions', 'Hooks', 'Input',
'Lang', 'Loader', 'Model',
'Output', 'Router', 'Security',
'URI', 'Utf8',
);
$ci_libraries = array(
'Calendar', 'Cart', 'Driver_Library',
'Email', 'Encrypt', 'Form_validation',
'Ftp', 'Image_lib', 'Javascript',
'Log', 'Migration', 'Pagination',
'Parser', 'Profiler', 'Session',
'Table', 'Trackback', 'Typography',
'Unit_test', 'Upload', 'User_agent',
'Xmlrpc', 'Zip',
);
if (strpos($class, 'Mock_') === 0)
{
$class = str_replace(array('Mock_', '_'), array('', DIRECTORY_SEPARATOR), $class);
$class = strtolower($class);
}
elseif (strpos($class, 'CI_') === 0)
{
$fragments = explode('_', $class, 2);
$subclass = next($fragments);
if (in_array($subclass, $ci_core))
{
$dir = BASEPATH.'core'.DIRECTORY_SEPARATOR;
$class = $subclass;
}
elseif (in_array($subclass, $ci_libraries))
{
$dir = BASEPATH.'libraries'.DIRECTORY_SEPARATOR;
$class = ($subclass === 'Driver_Library') ? 'Driver' : $subclass;
}
elseif (preg_match('/^CI_DB_(.+)_(driver|forge|result|utility)$/', $class, $m) && count($m) === 3)
{
$driver_path = BASEPATH.'database'.DIRECTORY_SEPARATOR.'drivers'.DIRECTORY_SEPARATOR;
$dir = $driver_path.$m[1].DIRECTORY_SEPARATOR;
$file = $dir.$m[1].'_'.$m[2].'.php';
}
elseif (strpos($class, 'CI_DB') === 0)
{
$dir = BASEPATH.'database'.DIRECTORY_SEPARATOR;
$file = $dir.str_replace(array('CI_DB','active_record'), array('DB', 'active_rec'), $subclass).'.php';
}
else
{
$class = strtolower($class);
}
}
$file = (isset($file)) ? $file : $dir.$class.'.php';
if ( ! file_exists($file))
{
$trace = debug_backtrace();
if ($trace[2]['function'] === 'class_exists' OR $trace[2]['function'] === 'file_exists')
{
// If the autoload call came from `class_exists` or `file_exists`,
// we skipped and return FALSE
return FALSE;
}
elseif (($autoloader = spl_autoload_functions()) && end($autoloader) !== __FUNCTION__)
{
// If there was other custom autoloader, passed away
return FALSE;
}
throw new InvalidArgumentException("Unable to load {$class}.");
}
include_once($file);
}
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