Tests for plugins are created in their own directory inside the plugins folder.

/app
     /plugins
         /pizza
             /tests
                  /cases
                  /fixtures
                  /groups

They work just like normal tests but you have to remember to use the naming conventions for plugins when importing classes. This is an example of a testcase for the PizzaOrder model from the plugins chapter of this manual. A difference from other tests is in the first line where 'Pizza.PizzaOrder' is imported. You also need to prefix your plugin fixtures with 'plugin.plugin_name.'.

<?php 
App::import('Model', 'Pizza.PizzaOrder');

class PizzaOrderCase extends CakeTestCase {

    // Plugin fixtures located in /app/plugins/pizza/tests/fixtures/
    var $fixtures = array('plugin.pizza.pizza_order');
    var $PizzaOrderTest;
    
    function testSomething() {
        // ClassRegistry makes the model use the test database connection
        $this->PizzaOrderTest =& ClassRegistry::init('PizzaOrder');

        // do some useful test here
        $this->assertTrue(is_object($this->PizzaOrderTest));
    }
}
?>

1. <?php
2. App::import('Model', 'Pizza.PizzaOrder');
3. class PizzaOrderCase extends CakeTestCase {
4. // Plugin fixtures located in /app/plugins/pizza/tests/fixtures/
5. var $fixtures = array('plugin.pizza.pizza_order');
6. var $PizzaOrderTest;
8. function testSomething() {
9. // ClassRegistry makes the model use the test database connection
10. $this->PizzaOrderTest =& ClassRegistry::init('PizzaOrder');
11. // do some useful test here
12. $this->assertTrue(is_object($this->PizzaOrderTest));
13. }
14. }
15. ?>

If you want to use plugin fixtures in the app tests you can reference them using 'plugin.pluginName.fixtureName' syntax in the $fixtures array.

That is all there is to it.