respect-validation/tests/Rules/InstanceTest.php

<?php
namespace Respect\Validation\Rules;

class InstanceTest extends \PHPUnit_Framework_TestCase
{
    protected $instanceValidator;

    protected function setUp()
    {
        $this->instanceValidator = new Instance('ArrayObject');
    }

    public function testInstanceValidationShouldReturnTrueForValidInstances()
    {
        $this->assertTrue($this->instanceValidator->__invoke(''));
        $this->assertTrue($this->instanceValidator->assert(''));
        $this->assertTrue($this->instanceValidator->check(''));
        $this->assertTrue($this->instanceValidator->__invoke(new \ArrayObject));
        $this->assertTrue($this->instanceValidator->assert(new \ArrayObject));
        $this->assertTrue($this->instanceValidator->check(new \ArrayObject));
    }

    /**
     * @expectedException Respect\Validation\Exceptions\InstanceException
     */
    public function testInvalidInstancesShouldThrowInstanceException()
    {
        $this->assertFalse($this->instanceValidator->validate(new \stdClass));
        $this->assertFalse($this->instanceValidator->assert(new \stdClass));
    }
}