silverstripe-framework/tests/php/Control/CookieTest.php

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NEW Cookie_Backend for managing cookie state I've decoupled `Cookie` from the actual act of setting and getting cookies. Currently there are a few limitations to how Cookie works that this change mitigates: 0. `Cookie` currently changes the super global `$_COOKIE` when setting to make the state of an application a bit more managable, but this is bad because we shouldn't be modifying super globals 0. One can't actually change the `$cookie_class` once the `Cookie::$inst` has been instantiated 0. One can't test cookies as there is no class that holds the state of the cookies (it's just held in the super global which is reset as part of `Director::test()` 0. One can't tell the origin of a cookie (eg: did the application set it and it needs to be sent, or did we receive it from the browser?) 0. `time()` was used, so testing was made difficult 0. There was no way to get all the cookies at once (without accessing the super global) Todos are on the phpdoc and I'd like to write some tests for the backend as well as update the docs (if there are any) around cookies. DOCS Adding `Cookie` docs Explains basic usage of `Cookie` as well as how the `Cookie_Backend` controls the setting and getting of cookies and manages state of sent vs received cookies Fixing `Cookie` usage `Cookie` is being used inconsistently with the API throughout framework. Either by not using `force_expiry` to expire cookies or setting them to null and then expiring them (which is redundant). NEW `Director::test()` takes `Cookie_Backend` rather than `array` for `$cookies` param
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<?php
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namespace SilverStripe\Control\Tests;
use SilverStripe\Core\Injector\Injector;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\Control\CookieJar;
use SilverStripe\Control\Cookie;
class CookieTest extends SapphireTest
{
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protected function setUp()
{
parent::setUp();
Injector::inst()->registerService(new CookieJar($_COOKIE), 'SilverStripe\\Control\\Cookie_Backend');
}
/**
* Check a new cookie inst will be loaded with the superglobal by default
*/
public function testCheckNewInstTakesSuperglobal()
{
//store the superglobal state
$existingCookies = $_COOKIE;
//set a mock state for the superglobal
$_COOKIE = array(
'cookie1' => 1,
'cookie2' => 'cookies',
'cookie3' => 'test',
'cookie_4' => 'value',
);
Injector::inst()->unregisterNamedObject('SilverStripe\\Control\\Cookie_Backend');
$this->assertEquals($_COOKIE['cookie1'], Cookie::get('cookie1'));
$this->assertEquals($_COOKIE['cookie2'], Cookie::get('cookie2'));
$this->assertEquals($_COOKIE['cookie3'], Cookie::get('cookie3'));
$this->assertEquals($_COOKIE['cookie_4'], Cookie::get('cookie.4'));
$this->assertEquals($_COOKIE['cookie_4'], Cookie::get('cookie_4'));
//for good measure check the CookieJar hasn't stored anything extra
$this->assertEquals($_COOKIE, Cookie::get_inst()->getAll(false));
//restore the superglobal state
$_COOKIE = $existingCookies;
}
/**
* Check we don't mess with super globals when manipulating cookies
*
* State should be managed sperately to the super global
*/
public function testCheckSuperglobalsArentTouched()
{
//store the current state
$before = $_COOKIE;
//change some cookies
Cookie::set('cookie', 'not me');
Cookie::force_expiry('cookie2');
//assert it hasn't changed
$this->assertEquals($before, $_COOKIE);
}
/**
* Check we can actually change a backend
*/
public function testChangeBackend()
{
Cookie::set('test', 'testvalue');
$this->assertEquals('testvalue', Cookie::get('test'));
Injector::inst()->registerService(new CookieJar(array()), 'SilverStripe\\Control\\Cookie_Backend');
$this->assertEmpty(Cookie::get('test'));
}
/**
* Check we can actually get the backend inst out
*/
public function testGetInst()
{
$inst = new CookieJar(array('test' => 'testvalue'));
Injector::inst()->registerService($inst, 'SilverStripe\\Control\\Cookie_Backend');
$this->assertEquals($inst, Cookie::get_inst());
$this->assertEquals('testvalue', Cookie::get('test'));
}
/**
* Test that we can set and get cookies
*/
public function testSetAndGet()
{
$this->assertEmpty(Cookie::get('testCookie'));
//set a test cookie
Cookie::set('testCookie', 'testVal');
//make sure it was set
$this->assertEquals('testVal', Cookie::get('testCookie'));
//make sure we can distinguise it from ones that were "existing"
$this->assertEmpty(Cookie::get('testCookie', false));
}
/**
* Test that we can distinguish between vars that were loaded on instantiation
* and those added later
*/
public function testExistingVersusNew()
{
//load with a cookie
$cookieJar = new CookieJar(
array(
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'cookieExisting' => 'i woz here',
)
);
Injector::inst()->registerService($cookieJar, 'SilverStripe\\Control\\Cookie_Backend');
//set a new cookie
Cookie::set('cookieNew', 'i am new');
//check we can fetch new and old cookie values
$this->assertEquals('i woz here', Cookie::get('cookieExisting'));
$this->assertEquals('i woz here', Cookie::get('cookieExisting', false));
$this->assertEquals('i am new', Cookie::get('cookieNew'));
//there should be no original value for the new cookie
$this->assertEmpty(Cookie::get('cookieNew', false));
//change the existing cookie, can we fetch the new and old value
Cookie::set('cookieExisting', 'i woz changed');
$this->assertEquals('i woz changed', Cookie::get('cookieExisting'));
$this->assertEquals('i woz here', Cookie::get('cookieExisting', false));
//check we can get all cookies
$this->assertEquals(
array(
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'cookieExisting' => 'i woz changed',
'cookieNew' => 'i am new',
),
Cookie::get_all()
);
//check we can get all original cookies
$this->assertEquals(
array(
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'cookieExisting' => 'i woz here',
),
Cookie::get_all(false)
);
}
/**
* Check we can remove cookies and we can access their original values
*/
public function testForceExpiry()
{
//load an existing cookie
$cookieJar = new CookieJar(
array(
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'cookieExisting' => 'i woz here',
)
);
Injector::inst()->registerService($cookieJar, 'SilverStripe\\Control\\Cookie_Backend');
//make sure it's available
$this->assertEquals('i woz here', Cookie::get('cookieExisting'));
//remove the cookie
Cookie::force_expiry('cookieExisting');
//check it's gone
$this->assertEmpty(Cookie::get('cookieExisting'));
//check we can get it's original value
$this->assertEquals('i woz here', Cookie::get('cookieExisting', false));
//check we can add a new cookie and remove it and it doesn't leave any phantom values
Cookie::set('newCookie', 'i am new');
//check it's set by not recieved
$this->assertEquals('i am new', Cookie::get('newCookie'));
$this->assertEmpty(Cookie::get('newCookie', false));
//remove it
Cookie::force_expiry('newCookie');
//check it's neither set nor reveived
$this->assertEmpty(Cookie::get('newCookie'));
$this->assertEmpty(Cookie::get('newCookie', false));
}
NEW Cookie_Backend for managing cookie state I've decoupled `Cookie` from the actual act of setting and getting cookies. Currently there are a few limitations to how Cookie works that this change mitigates: 0. `Cookie` currently changes the super global `$_COOKIE` when setting to make the state of an application a bit more managable, but this is bad because we shouldn't be modifying super globals 0. One can't actually change the `$cookie_class` once the `Cookie::$inst` has been instantiated 0. One can't test cookies as there is no class that holds the state of the cookies (it's just held in the super global which is reset as part of `Director::test()` 0. One can't tell the origin of a cookie (eg: did the application set it and it needs to be sent, or did we receive it from the browser?) 0. `time()` was used, so testing was made difficult 0. There was no way to get all the cookies at once (without accessing the super global) Todos are on the phpdoc and I'd like to write some tests for the backend as well as update the docs (if there are any) around cookies. DOCS Adding `Cookie` docs Explains basic usage of `Cookie` as well as how the `Cookie_Backend` controls the setting and getting of cookies and manages state of sent vs received cookies Fixing `Cookie` usage `Cookie` is being used inconsistently with the API throughout framework. Either by not using `force_expiry` to expire cookies or setting them to null and then expiring them (which is redundant). NEW `Director::test()` takes `Cookie_Backend` rather than `array` for `$cookies` param
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}