5 * Copyright (c) 2002-2011, Sebastian Bergmann <sebastian@phpunit.de>.
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38 * @subpackage Framework_Constraint
39 * @author Sebastian Bergmann <sebastian@phpunit.de>
40 * @copyright 2002-2011 Sebastian Bergmann <sebastian@phpunit.de>
41 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
42 * @link http://www.phpunit.de/
43 * @since File available since Release 3.0.0
50 * @subpackage Framework_Constraint
51 * @author Sebastian Bergmann <sebastian@phpunit.de>
52 * @copyright 2002-2011 Sebastian Bergmann <sebastian@phpunit.de>
53 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
54 * @version Release: 3.5.13
55 * @link http://www.phpunit.de/
56 * @since Class available since Release 3.0.0
59 class PHPUnit_Framework_Constraint_Not extends PHPUnit_Framework_Constraint
62 * @var PHPUnit_Framework_Constraint
64 protected $constraint;
67 * @param PHPUnit_Framework_Constraint $constraint
69 public function __construct($constraint)
71 if (!($constraint instanceof PHPUnit_Framework_Constraint)) {
72 $constraint = new PHPUnit_Framework_Constraint_IsEqual($constraint);
75 $this->constraint = $constraint;
79 * Evaluates the constraint for parameter $other. Returns TRUE if the
80 * constraint is met, FALSE otherwise.
82 * @param mixed $other Value or object to evaluate.
85 public function evaluate($other)
87 return !$this->constraint->evaluate($other);
91 * @param mixed $other The value passed to evaluate() which failed the
93 * @param string $description A string with extra description of what was
94 * going on while the evaluation failed.
95 * @param boolean $not Flag to indicate negation.
96 * @throws PHPUnit_Framework_ExpectationFailedException
98 public function fail($other, $description, $not = FALSE)
100 if (count($this->constraint) == 1 ||
101 $this->constraint instanceof PHPUnit_Framework_Constraint_Attribute) {
102 $this->constraint->fail($other, $description, TRUE);
104 parent::fail($other, $description, !$not);
109 * Returns a string representation of the constraint.
113 public function toString()
115 switch (get_class($this->constraint)) {
116 case 'PHPUnit_Framework_Constraint_And':
117 case 'PHPUnit_Framework_Constraint_Not':
118 case 'PHPUnit_Framework_Constraint_Or': {
119 return 'not( ' . $this->constraint->toString() . ' )';
124 return PHPUnit_Framework_Constraint::negate(
125 $this->constraint->toString()
132 * Counts the number of constraint elements.
135 * @since Method available since Release 3.4.0
137 public function count()
139 return count($this->constraint);