<?php
class TestStack extends CakeTestModel {
    var $name = 'TestStack';
    var $cacheSources = false;
    var $actsAs = array('Stack'=>array('next'=>'next'));
    var $useDbConfig  = 'test_suite';
}

class StackTestCase extends CakeTestCase {
    var $fixtures = array('app.stack');
    var $Stack = null;
    
    function start() {
        parent::start();
    }
    
    function testSetup() {
        $this->Stack = new TestStack();
        $expected = array('TestStack'=>array(
            'id'=>3,
            'name'=>'C',
            'next'=>null,
        ));
        $this->assertEqual($expected, $this->Stack->top());
    }
    
    function testLength() {
        $this->Stack = new TestStack();
        $this->assertEqual(3, $this->Stack->length());
    }
    
    function testPush() {
        $this->Stack = new TestStack();
        $data = array('TestStack'=>array(
            'name'=>'D',
            'next'=>null,
        ));
        $this->Stack->push($data);
        $expected = array('TestStack'=>array(
            'id'=>4,
            'name'=>'D',
            'next'=>null,
        ));
        $top = $this->Stack->top();
        $this->assertEqual($expected, $top);
        $this->assertEqual(4, $this->Stack->length());
        
        $belowTop = $this->Stack->find('first', array('conditions'=>array('TestStack.next'=>$top['TestStack']['id'])));
        $expected = array('TestStack'=>array(
            'id'=>3,
            'name'=>'C',
            'next'=>4,
        ));
        $this->assertEqual($expected, $belowTop);
    }
    
    function testPop() {
        $this->Stack = new TestStack();
        $expected = array('TestStack'=>array(
            'id'=>3,
            'name'=>'C',
            'next'=>null,
        ));
        $this->assertEqual($expected, $this->Stack->pop());
        $expected = array('TestStack'=>array(
            'id'=>2,
            'name'=>'B',
            'next'=>null,
        ));
        $this->assertEqual($expected, $this->Stack->top());
    }
}
?>