65 lines
1.7 KiB
PHP
65 lines
1.7 KiB
PHP
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<?php
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/*
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* (c) Markus Lanthaler <mail@markus-lanthaler.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace ML\JsonLD\Test;
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/**
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* A JSON Test Case
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*
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* This class extends {@link \PHPUnit_Framework_TestCase} with an assertion
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* to compare JSON.
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*
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* @author Markus Lanthaler <mail@markus-lanthaler.com>
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*/
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abstract class JsonTestCase extends \PHPUnit_Framework_TestCase
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{
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/**
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* Asserts that two JSON structures are equal.
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*
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* @param object|array $expected
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* @param object|array $actual
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* @param string $message
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*/
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public static function assertJsonEquals($expected, $actual, $message = '')
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{
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$expected = self::normalizeJson($expected);
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$actual = self::normalizeJson($actual);
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self::assertEquals($expected, $actual, $message);
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}
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/**
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* Brings the keys of objects to a deterministic order to enable
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* comparison of JSON structures
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*
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* @param mixed $element The element to normalize.
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*
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* @return mixed The same data with all object keys ordered in a
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* deterministic way.
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*/
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private static function normalizeJson($element)
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{
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if (is_array($element)) {
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foreach ($element as &$item) {
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$item = self::normalizeJson($item);
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}
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} elseif (is_object($element)) {
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$element = (array) $element;
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ksort($element);
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$element = (object) $element;
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foreach ($element as &$item) {
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$item = self::normalizeJson($item);
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}
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}
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return $element;
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}
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}
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