Mercurial > hg > isophonics-drupal-site
view core/tests/Drupal/Tests/Component/Serialization/JsonTest.php @ 17:129ea1e6d783
Update, including to Drupal core 8.6.10
author | Chris Cannam |
---|---|
date | Thu, 28 Feb 2019 13:21:36 +0000 |
parents | 1fec387a4317 |
children |
line wrap: on
line source
<?php namespace Drupal\Tests\Component\Serialization; use Drupal\Component\Serialization\Json; use PHPUnit\Framework\TestCase; /** * @coversDefaultClass \Drupal\Component\Serialization\Json * @group Serialization */ class JsonTest extends TestCase { /** * A test string with the full ASCII table. * * @var string */ protected $string; /** * An array of unsafe html characters which has to be encoded. * * @var array */ protected $htmlUnsafe; /** * An array of unsafe html characters which are already escaped. * * @var array */ protected $htmlUnsafeEscaped; /** * {@inheritdoc} */ protected function setUp() { parent::setUp(); // Setup a string with the full ASCII table. // @todo: Add tests for non-ASCII characters and Unicode. $this->string = ''; for ($i = 1; $i < 128; $i++) { $this->string .= chr($i); } // Characters that must be escaped. // We check for unescaped " separately. $this->htmlUnsafe = ['<', '>', '\'', '&']; // The following are the encoded forms of: < > ' & " $this->htmlUnsafeEscaped = ['\u003C', '\u003E', '\u0027', '\u0026', '\u0022']; } /** * Tests encoding for every ASCII character. */ public function testEncodingAscii() { // Verify there aren't character encoding problems with the source string. $this->assertSame(127, strlen($this->string), 'A string with the full ASCII table has the correct length.'); foreach ($this->htmlUnsafe as $char) { $this->assertTrue(strpos($this->string, $char) > 0, sprintf('A string with the full ASCII table includes %s.', $char)); } } /** * Tests encoding length. */ public function testEncodingLength() { // Verify that JSON encoding produces a string with all of the characters. $json = Json::encode($this->string); $this->assertTrue(strlen($json) > strlen($this->string), 'A JSON encoded string is larger than the source string.'); } /** * Tests end and start of the encoded string. */ public function testEncodingStartEnd() { $json = Json::encode($this->string); // The first and last characters should be ", and no others. $this->assertTrue($json[0] == '"', 'A JSON encoded string begins with ".'); $this->assertTrue($json[strlen($json) - 1] == '"', 'A JSON encoded string ends with ".'); $this->assertTrue(substr_count($json, '"') == 2, 'A JSON encoded string contains exactly two ".'); } /** * Tests converting PHP variables to JSON strings and back. */ public function testReversibility() { $json = Json::encode($this->string); // Verify that encoding/decoding is reversible. $json_decoded = Json::decode($json); $this->assertSame($this->string, $json_decoded, 'Encoding a string to JSON and decoding back results in the original string.'); } /** * Test the reversibility of structured data */ public function testStructuredReversibility() { // Verify reversibility for structured data. Also verify that necessary // characters are escaped. $source = [TRUE, FALSE, 0, 1, '0', '1', $this->string, ['key1' => $this->string, 'key2' => ['nested' => TRUE]]]; $json = Json::encode($source); foreach ($this->htmlUnsafe as $char) { $this->assertTrue(strpos($json, $char) === FALSE, sprintf('A JSON encoded string does not contain %s.', $char)); } // Verify that JSON encoding escapes the HTML unsafe characters foreach ($this->htmlUnsafeEscaped as $char) { $this->assertTrue(strpos($json, $char) > 0, sprintf('A JSON encoded string contains %s.', $char)); } $json_decoded = Json::decode($json); $this->assertNotSame($source, $json, 'An array encoded in JSON is identical to the source.'); $this->assertSame($source, $json_decoded, 'Encoding structured data to JSON and decoding back not results in the original data.'); } }