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<?php

/**

* Driver library base class unit test

*/

class Driver_test extends CI_TestCase {

/**

* Set up test framework

*/

public function set_up()

{

// Set our subclass prefix

$this->subclass = 'Mock_Libraries_';

$this->ci_set_config('subclass_prefix', $this->subclass);

// Mock Loader->get_package_paths

$paths = 'get_package_paths';

$ldr = $this->getMockBuilder('CI_Loader')->setMethods(array($paths))->getMock();

$ldr->expects($this->any())->method($paths)->will($this->returnValue(array(APPPATH, BASEPATH)));

$this->ci_instance_var('load', $ldr);

// Create mock driver library

$this->name = 'Driver';

$this->lib = new Mock_Libraries_Driver();

}

/**

* Test driver child loading

*/

public function test_load_driver()

{

// Create driver file

$driver = 'basic';

$file = $this->name.'_'.$driver;

$class = 'CI_'.$file;

$prop = 'called';

$content = '<?php class '.$class.' extends CI_Driver { public $'.$prop.' = FALSE; '.

'public function decorate($parent) { $this->'.$prop.' = TRUE; } }';

$this->ci_vfs_create($file, $content, $this->ci_base_root, array('libraries', $this->name, 'drivers'));

// Make driver valid

$this->lib->driver_list($driver);

// Load driver

$this->assertNotNull($this->lib->load_driver($driver));

// Did lib name get set?

$this->assertEquals($this->name, $this->lib->get_name());

// Was driver loaded?

$this->assertObjectHasAttribute($driver, $this->lib);

$this->assertAttributeInstanceOf($class, $driver, $this->lib);

$this->assertAttributeInstanceOf('CI_Driver', $driver, $this->lib);

// Was decorate called?

$this->assertObjectHasAttribute($prop, $this->lib->$driver);

$this->assertTrue($this->lib->$driver->$prop);

// Do we get an error for an invalid driver?

$driver = 'unlisted';

$this->setExpectedException('RuntimeException', 'CI Error: Invalid driver requested: '.$this->name.'_'.$driver);

$this->lib->load_driver($driver);

}

/**

* Test loading lowercase from app path

*/

public function test_load_app_driver()

{

// Create driver file

$driver = 'lowpack';

$file = $this->name.'_'.$driver;

$class = 'CI_'.$file;

$content = '<?php class '.$class.' extends CI_Driver { }';

$this->ci_vfs_create($file, $content, $this->ci_app_root,

array('libraries', $this->name, 'drivers'));

// Make valid list

$nodriver = 'absent';

$this->lib->driver_list(array($driver, $nodriver));

// Load driver

$this->assertNotNull($this->lib->load_driver($driver));

// Was driver loaded?

$this->assertObjectHasAttribute($driver, $this->lib);

$this->assertAttributeInstanceOf($class, $driver, $this->lib);

$this->assertAttributeInstanceOf('CI_Driver', $driver, $this->lib);

// Do we get an error for a non-existent driver?

$this->setExpectedException('RuntimeException', 'CI Error: Unable to load the requested driver: CI_'.

$this->name.'_'.$nodriver);

$this->lib->load_driver($nodriver);

}

/**

* Test loading driver extension

*/

public function test_load_driver_ext()

{

// Create base file

$driver = 'extend';

$base = $this->name.'_'.$driver;

$baseclass = 'CI_'.$base;

$content = '<?php class '.$baseclass.' extends CI_Driver { }';

$this->ci_vfs_create($base, $content, $this->ci_base_root, array('libraries', $this->name, 'drivers'));

// Create driver file

$class = $this->subclass.$base;

$content = '<?php class '.$class.' extends '.$baseclass.' { }';

$this->ci_vfs_create($class, $content, $this->ci_app_root, array('libraries', $this->name, 'drivers'));

// Make valid list

$this->lib->driver_list($driver);

// Load driver

$this->assertNotNull($this->lib->load_driver($driver));

// Was driver loaded?

$this->assertObjectHasAttribute($driver, $this->lib);

$this->assertAttributeInstanceOf($class, $driver, $this->lib);

$this->assertAttributeInstanceOf($baseclass, $driver, $this->lib);

$this->assertAttributeInstanceOf('CI_Driver', $driver, $this->lib);

// Create driver extension without base

$driver = 'baseless';

$base = $this->name.'_'.$driver;

$class = $this->subclass.$base;

$content = '<?php class '.$class.' extends CI_Driver { }';

$this->ci_vfs_create($class, $content, $this->ci_app_root, array('libraries', $this->name, 'drivers'));

$this->lib->driver_list($driver);

// Do we get an error when base class isn't found?

$this->setExpectedException('RuntimeException', 'CI Error: Unable to load the requested class: CI_'.$base);

$this->lib->load_driver($driver);

}

/**

* Test decorating driver with parent attributes

*/

public function test_decorate()

{

// Create parent with a method and property to access

$pclass = 'Test_Parent';

$prop = 'parent_prop';

$value = 'initial';

$method = 'parent_func';

$return = 'func return';

$code = 'class '.$pclass.' { public $'.$prop.' = \''.$value.'\'; '.

'public function '.$method.'() { return \''.$return.'\'; } }';

eval($code);

$parent = new $pclass();

// Create child driver to decorate

$class = 'Test_Driver';

eval('class '.$class.' extends CI_Driver { }');

$child = new $class();

// Decorate child

$child->decorate($parent);

// Do we get the initial parent property value?

$this->assertEquals($value, $child->$prop);

// Can we change the parent property?

$newval = 'changed';

$child->$prop = $newval;

$this->assertEquals($newval, $parent->$prop);

// Do we get back the updated value?

$this->assertEquals($newval, $child->$prop);

// Can we call the parent method?

$this->assertEquals($return, $child->$method());

}

}