unit_tester.php

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<?php
    /**
     *	base include file for SimpleTest
     *	@package	SimpleTest
     *	@subpackage	UnitTester
     *	@version	$Id: unit_tester.php 163 2008-01-14 04:40:16Z matt $
     */

    /**#@+
     *	include other SimpleTest class files
     */
    require_once(dirname(__FILE__) . '/test_case.php');
    require_once(dirname(__FILE__) . '/dumper.php');
    /**#@-*/

    /**
     *    Standard unit test class for day to day testing
     *    of PHP code XP style. Adds some useful standard
     *    assertions.
	 *	  @package	SimpleTest
	 *	  @subpackage	UnitTester
     */
    class UnitTestCase extends SimpleTestCase {

        /**
         *    Creates an empty test case. Should be subclassed
         *    with test methods for a functional test case.
         *    @param string $label     Name of test case. Will use
         *                             the class name if none specified.
         *    @access public
         */
        function UnitTestCase($label = false) {
            if (! $label) {
                $label = get_class($this);
            }
            $this->SimpleTestCase($label);
        }

        /**
         *    Called from within the test methods to register
         *    passes and failures.
         *    @param boolean $result    Pass on true.
         *    @param string $message    Message to display describing
         *                              the test state.
         *    @return boolean           True on pass
         *    @access public
         */
        function assertTrue($result, $message = false) {
            return $this->assert(new TrueExpectation(), $result, $message);
        }

        /**
         *    Will be true on false and vice versa. False
         *    is the PHP definition of false, so that null,
         *    empty strings, zero and an empty array all count
         *    as false.
         *    @param boolean $result    Pass on false.
         *    @param string $message    Message to display.
         *    @return boolean           True on pass
         *    @access public
         */
        function assertFalse($result, $message = '%s') {
            return $this->assert(new FalseExpectation(), $result, $message);
        }

        /**
         *    Will be true if the value is null.
         *    @param null $value       Supposedly null value.
         *    @param string $message   Message to display.
         *    @return boolean                        True on pass
         *    @access public
         */
        function assertNull($value, $message = '%s') {
            $dumper = &new SimpleDumper();
            $message = sprintf(
                    $message,
                    '[' . $dumper->describeValue($value) . '] should be null');
            return $this->assertTrue(! isset($value), $message);
        }

        /**
         *    Will be true if the value is set.
         *    @param mixed $value           Supposedly set value.
         *    @param string $message        Message to display.
         *    @return boolean               True on pass.
         *    @access public
         */
        function assertNotNull($value, $message = '%s') {
            $dumper = &new SimpleDumper();
            $message = sprintf(
                    $message,
                    '[' . $dumper->describeValue($value) . '] should not be null');
            return $this->assertTrue(isset($value), $message);
        }

        /**
         *    Type and class test. Will pass if class
         *    matches the type name or is a subclass or
         *    if not an object, but the type is correct.
         *    @param mixed $object         Object to test.
         *    @param string $type          Type name as string.
         *    @param string $message       Message to display.
         *    @return boolean              True on pass.
         *    @access public
         */
        function assertIsA($object, $type, $message = '%s') {
            return $this->assert(
                    new IsAExpectation($type),
                    $object,
                    $message);
        }

        /**
         *    Type and class mismatch test. Will pass if class
         *    name or underling type does not match the one
         *    specified.
         *    @param mixed $object         Object to test.
         *    @param string $type          Type name as string.
         *    @param string $message       Message to display.
         *    @return boolean              True on pass.
         *    @access public
         */
        function assertNotA($object, $type, $message = '%s') {
            return $this->assert(
                    new NotAExpectation($type),
                    $object,
                    $message);
        }

        /**
         *    Will trigger a pass if the two parameters have
         *    the same value only. Otherwise a fail.
         *    @param mixed $first          Value to compare.
         *    @param mixed $second         Value to compare.
         *    @param string $message       Message to display.
         *    @return boolean              True on pass
         *    @access public
         */
        function assertEqual($first, $second, $message = '%s') {
            return $this->assert(
                    new EqualExpectation($first),
                    $second,
                    $message);
        }

        /**
         *    Will trigger a pass if the two parameters have
         *    a different value. Otherwise a fail.
         *    @param mixed $first           Value to compare.
         *    @param mixed $second          Value to compare.
         *    @param string $message        Message to display.
         *    @return boolean               True on pass
         *    @access public
         */
        function assertNotEqual($first, $second, $message = '%s') {
            return $this->assert(
                    new NotEqualExpectation($first),
                    $second,
                    $message);
        }

        /**
         *    Will trigger a pass if the if the first parameter
         *    is near enough to the second by the margin.
         *    @param mixed $first          Value to compare.
         *    @param mixed $second         Value to compare.
         *    @param mixed $margin         Fuzziness of match.
         *    @param string $message       Message to display.
         *    @return boolean              True on pass
         *    @access public
         */
        function assertWithinMargin($first, $second, $margin, $message = '%s') {
            return $this->assert(
                    new WithinMarginExpectation($first, $margin),
                    $second,
                    $message);
        }

        /**
         *    Will trigger a pass if the two parameters differ
         *    by more than the margin.
         *    @param mixed $first          Value to compare.
         *    @param mixed $second         Value to compare.
         *    @param mixed $margin         Fuzziness of match.
         *    @param string $message       Message to display.
         *    @return boolean              True on pass
         *    @access public
         */
        function assertOutsideMargin($first, $second, $margin, $message = '%s') {
            return $this->assert(
                    new OutsideMarginExpectation($first, $margin),
                    $second,
                    $message);
        }

        /**
         *    Will trigger a pass if the two parameters have
         *    the same value and same type. Otherwise a fail.
         *    @param mixed $first           Value to compare.
         *    @param mixed $second          Value to compare.
         *    @param string $message        Message to display.
         *    @return boolean               True on pass
         *    @access public
         */
        function assertIdentical($first, $second, $message = '%s') {
            return $this->assert(
                    new IdenticalExpectation($first),
                    $second,
                    $message);