function JsonTest::testStructuredReversibility

Test the reversibility of structured data

File

core/tests/Drupal/Tests/Component/Serialization/JsonTest.php, line 99

Class

JsonTest

@coversDefaultClass \Drupal\Component\Serialization\Json @group Serialization

Namespace

Code

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.');
}