5 * Copyright (c) 2002-2009, Sebastian Bergmann <sb@sebastian-bergmann.de>.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * * Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * * Neither the name of Sebastian Bergmann nor the names of his
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
28 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
30 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
34 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
39 * @author Kore Nordmann <kn@ez.no>
40 * @author Sebastian Bergmann <sb@sebastian-bergmann.de>
41 * @copyright 2002-2009 Sebastian Bergmann <sb@sebastian-bergmann.de>
42 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
44 * @link http://www.phpunit.de/
45 * @since File available since Release 3.0.0
48 require_once 'PHPUnit/Framework.php';
49 require_once 'PHPUnit/Util/Filter.php';
50 require_once 'PHPUnit/Util/Type.php';
52 PHPUnit_Util_Filter::addFileToFilter(__FILE__, 'PHPUNIT');
55 * Constraint that checks if one value is equal to another.
57 * Equality is checked with PHP's == operator, the operator is explained in detail
58 * at {@url http://www.php.net/manual/en/types.comparisons.php}.
59 * Two values are equal if they have the same value disregarding type.
61 * The expected value is passed in the constructor.
65 * @author Kore Nordmann <kn@ez.no>
66 * @author Sebastian Bergmann <sb@sebastian-bergmann.de>
67 * @copyright 2002-2009 Sebastian Bergmann <sb@sebastian-bergmann.de>
68 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
69 * @version Release: 3.3.17
70 * @link http://www.phpunit.de/
71 * @since Class available since Release 3.0.0
73 class PHPUnit_Framework_Constraint_IsEqual extends PHPUnit_Framework_Constraint
77 protected $maxDepth = 10;
78 protected $canonicalizeEol = FALSE;
80 public function __construct($value, $delta = 0, $maxDepth = 10, $canonicalizeEol = FALSE)
82 $this->value = $value;
83 $this->delta = $delta;
84 $this->maxDepth = $maxDepth;
85 $this->canonicalizeEol = $canonicalizeEol;
89 * Evaluates the constraint for parameter $other. Returns TRUE if the
90 * constraint is met, FALSE otherwise.
92 * @param mixed $other Value or object to evaluate.
95 public function evaluate($other)
97 return $this->recursiveComparison($this->value, $other);
101 * @param mixed $other The value passed to evaluate() which failed the
103 * @param string $description A string with extra description of what was
104 * going on while the evaluation failed.
105 * @param boolean $not Flag to indicate negation.
106 * @throws PHPUnit_Framework_ExpectationFailedException
108 public function fail($other, $description, $not = FALSE)
110 $failureDescription = $this->failureDescription(
117 if ($this->value instanceof DOMDocument) {
118 $value = $this->domToText($this->value);
120 $value = $this->value;
123 if ($other instanceof DOMDocument) {
124 $other = $this->domToText($other);
127 throw new PHPUnit_Framework_ExpectationFailedException(
129 PHPUnit_Framework_ComparisonFailure::diffEqual($value, $other),
133 throw new PHPUnit_Framework_ExpectationFailedException(
141 * Returns a string representation of the constraint.
145 public function toString()
149 if (is_string($this->value)) {
150 if (strpos($this->value, "\n") !== FALSE) {
151 return 'is equal to <text>';
154 'is equal to <string:%s>',
160 if ($this->delta != 0) {
171 PHPUnit_Util_Type::toString($this->value),
178 * Perform the actual recursive comparision of two values
180 * @param mixed $a First value
181 * @param mixed $b Second value
182 * @param int $depth Depth
185 protected function recursiveComparison($a, $b, $depth = 0)
191 if ($depth >= $this->maxDepth) {
195 if (is_numeric($a) XOR is_numeric($b)) {
199 if (is_array($a) XOR is_array($b)) {
203 if (is_object($a) XOR is_object($b)) {
207 if ($a instanceof SplObjectStorage XOR $b instanceof SplObjectStorage) {
211 if ($a instanceof SplObjectStorage) {
212 foreach ($a as $object) {
213 if (!$b->contains($object)) {
218 foreach ($b as $object) {
219 if (!$a->contains($object)) {
227 if ($a instanceof DOMDocument || $b instanceof DOMDocument) {
228 if (!$a instanceof DOMDocument) {
229 $_a = new DOMDocument;
230 $_a->preserveWhiteSpace = FALSE;
236 if (!$b instanceof DOMDocument) {
237 $_b = new DOMDocument;
238 $_b->preserveWhiteSpace = FALSE;
244 if (version_compare(PHP_VERSION, '5.2.0RC1', '>=')) {
245 return ($a->C14N() == $b->C14N());
247 return ($a->saveXML() == $b->saveXML());
251 if (is_object($a) && is_object($b) &&
252 (get_class($a) !== get_class($b))) {
256 // Normal comparision for scalar values.
257 if ((!is_array($a) && !is_object($a)) ||
258 (!is_array($b) && !is_object($b))) {
259 if (is_numeric($a) && is_numeric($b)) {
260 // Optionally apply delta on numeric values.
261 return $this->numericComparison($a, $b);
264 if ($this->canonicalizeEol && PHP_EOL != "\n" &&
265 is_string($a) && is_string($b)) {
266 $a = str_replace(PHP_EOL, "\n", $a);
267 $b = str_replace(PHP_EOL, "\n", $b);
278 foreach ($a as $key => $v) {
279 if (!array_key_exists($key, $b)) {
280 // Abort on missing key in $b.
284 if (!$this->recursiveComparison($a[$key], $b[$key], $depth + 1)) {
285 // FALSE, if child comparision fails.
289 // Unset key to check whether all keys of b are compared.
294 // There is something in $b, that is missing in $a.
302 * Compares two numeric values - use delta if applicable.
308 protected function numericComparison($a, $b)
310 if ($this->delta === FALSE) {
313 return (abs($a - $b) <= $this->delta);
318 * Returns the normalized, whitespace-cleaned, and indented textual
319 * representation of a DOMDocument.
321 * @param DOMDocument $document
324 protected function domToText(DOMDocument $document)
326 $document->formatOutput = TRUE;
327 $document->normalizeDocument();
329 return $document->saveXML();