yii_framework/demos/blog/protected/tests/functional/CommentTest.php

<?php

class CommentTest extends WebTestCase
{
	/**
	 * We use both 'Post' and 'Comment' fixtures.
	 * @see CWebTestCase::fixtures
	 */
	public $fixtures=array(
		'posts'=>'Post',
		'comments'=>'Comment',
	);

	public function testCreate()
	{
		$this->open('post/1/xyz');

	    // verify the sample post title exists
	    $this->assertTextPresent($this->posts['sample1']['title']);
	    $this->assertElementPresent("name=Comment[author]");

	    // verify validation errors
	    $this->clickAndWait("//input[@value='Submit']");
	    $this->assertTextPresent('Name cannot be blank.');
	    $this->assertTextPresent('Email cannot be blank.');
	    $this->assertTextPresent('Comment cannot be blank.');

		// verify commenting is successful
		$comment="comment 1";
		$this->type('name=Comment[author]','me');
		$this->type('name=Comment[email]','me@example.com');
		$this->type('name=Comment[content]',$comment);
	    $this->clickAndWait("//input[@value='Submit']");
	    $this->assertTextPresent('Thank you for your comment');
	}
}