5 * Copyright (c) 2002-2011, Sebastian Bergmann <sebastian@phpunit.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.
38 * @subpackage Framework
39 * @author Bernhard Schussek <bschussek@2bepublished.at>
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 3.6.0
47 * Compares doubles for equality.
50 * @subpackage Framework_Comparator
51 * @author Bernhard Schussek <bschussek@2bepublished.at>
52 * @copyright 2002-2011 Sebastian Bergmann <sebastian@phpunit.de>
53 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
54 * @version Release: 3.6.3
55 * @link http://www.phpunit.de/
56 * @since Class available since Release 3.6.0
58 class PHPUnit_Framework_Comparator_Double extends PHPUnit_Framework_Comparator_Numeric
61 * Smallest value available in PHP.
65 const EPSILON = 0.0000000001;
68 * Returns whether the comparator can compare two values.
70 * @param mixed $expected The first value to compare
71 * @param mixed $actual The second value to compare
74 public function accepts($expected, $actual)
76 return (is_double($expected) || is_double($actual)) && is_numeric($expected) && is_numeric($actual);
80 * Asserts that two values are equal.
82 * @param mixed $expected The first value to compare
83 * @param mixed $actual The second value to compare
84 * @param float $delta The allowed numerical distance between two values to
86 * @param bool $canonicalize If set to TRUE, arrays are sorted before
88 * @param bool $ignoreCase If set to TRUE, upper- and lowercasing is
89 * ignored when comparing string values
90 * @throws PHPUnit_Framework_ComparisonFailure Thrown when the comparison
91 * fails. Contains information about the
92 * specific errors that lead to the failure.
94 public function assertEquals($expected, $actual, $delta = 0, $canonicalize = FALSE, $ignoreCase = FALSE)
97 $delta = self::EPSILON;
100 parent::assertEquals($expected, $actual, $delta, $canonicalize, $ignoreCase);