To define a TestCase

• 1) Implement a subclass of PHPUnit_TestCase.

• 2) Define instance variables that store the state of the fixture.

• 3) Initialize the fixture state by overriding setUp().

• 4) Clean-up after a test by overriding tearDown().

PHPUnit::TestCase

<?php
    class MathTest extends PHPUnit_TestCase {
      var $fValue1;
      var $fValue2;

      function MathTest($name) {
        $this->PHPUnit_TestCase($name);
      }

      function setUp() {
        $this->fValue1 = 2;
        $this->fValue2 = 3;
      }
    }
    ?>

For each test implement a method which interacts with the fixture. Verify the expected results with assertions specified by calling assert with a boolean.

function testPass() {
      $this->assertTrue($this->fValue1 + $this->fValue2 == 5);
    }