O Guia Definitivo do Yii 1.1

Tip: Having too many fixture files could increase the test time dramatically. For this
reason, you should only provide fixture files for those tables whose content may
change during the test. Tables that serve as look-ups do not change and thus do not
need fixture files.
In the next two sections, we will describe how to make use of the fixtures managed by
CDbFixtureManager in unit tests and functional tests.
Testes Unitários
Because the Yii testing framework is built on top of PHPUnit, it is recommended that you
go through thePHPUnit documentation first to get the basic understanding on how to write
a unit test. We summarize in the following the basic principles of writing a unit test in Yii:
• A unit test is written in terms of a class XyzTest which extends from CTestCase or
CDbTestCase, whereXyz stands for the class being tested. For example, to test the
Post class, we would name the corresponding unit test as PostTest by convention.
The base class CTestCase is meant for generic unit tests, while CDbTestCase is
suitable for testing active record m o d e l c l a s s e s .
BecausePHPUnit_Framework_TestCase is the ancestor class for both classes, we
can use all methods inherited from this class.
• The unit test class is saved in a PHP file named as XyzTest.php. By convention, the
unit test file may be stored under the directory protected/tests/unit.
• The test class mainly contains a set of test methods named as testAbc, where Abc is
often the name of the class method to be tested.
• A test method usually contains a sequence of assertion statements (e.g. assertTrue,
assertEquals) which serve as checkpoints on validating the behavior of the target
class.
In the following, we mainly describe how to write unit tests for active record model classes.
We will extend our test classes from CDbTestCase because it provides the database
fixture support that we introduced in the previous section.
Assume we want to test the Comment model class in the blog demo. We start by creating
a class namedCommentTest and saving it as protected/tests/unit/CommentTest.php:
class CommentTest extends CDbTestCase
{
public $fixtures=array(
'posts'=>'Post',
'comments'=>'Comment',
);
}
......