GeshiFilterTest.php in GeSHi Filter for syntax highlighting 8

Namespace

Drupal\Tests\geshifilter\Functional

File

tests/src/Functional/GeshiFilterTest.php

<?php

namespace Drupal\Tests\geshifilter\Functional;


// Use of base class for the tests.
use Drupal\Tests\BrowserTestBase;
use Drupal\geshifilter\GeshiFilter;
use Drupal\geshifilter\GeshiFilterProcess;

/**
 * Tests for GeshiFilter in node content.
 *
 * Those tests are for the content of the node, to make sure they are
 * processed by geshi library.
 *
 * @group geshifilter
 */
class GeshiFilterTest extends BrowserTestBase {

  /**
   * A global filter adminstrator.
   *
   * @var object
   */
  protected $filterAdminUser;

  /**
   * A global user for adding pages.
   *
   * @var object
   */
  protected $normalUser;

  /**
   * Object with configuration.
   *
   * @var \Drupal\Core\Config\Config
   */
  protected $config;

  /**
   * List of modules to enable.
   *
   * @var array
   */
  public static $modules = [
    'node',
    'geshifilter',
    'filter',
  ];

  /**
   * The number of current node.
   *
   * @var int
   */
  protected $node;

  /**
   * Code run before each and every test method.
   */
  public function setUp() {
    parent::setUp();

    // Restore node to default value.
    $this->node = 1;

    // Create object with configuration.
    $this->config = \Drupal::configFactory()
      ->getEditable('geshifilter.settings');

    // And set the path to the geshi library.
    $this->config
      ->set('geshi_dir', '/libraries/geshi');

    // Create a content type, as we will create nodes on test.
    $settings = [
      // Override default type (a random name).
      'type' => 'geshifilter_content_type',
      'name' => 'Geshifilter Content',
    ];
    $this
      ->drupalCreateContentType($settings);

    // Create a filter admin user.
    $permissions = [
      'administer filters',
      'administer nodes',
      'access administration pages',
      'create geshifilter_content_type content',
      'edit any geshifilter_content_type content',
      'administer site configuration',
    ];
    $this->filterAdminUser = $this
      ->drupalCreateUser($permissions);

    // Log in with filter admin user.
    $this
      ->drupalLogin($this->filterAdminUser);

    // Add an text format with only geshi filter.
    $this
      ->createTextFormat('geshifilter_text_format', [
      'filter_geshifilter',
    ]);

    // Set some default GeSHi filter admin settings.
    // Set default highlighting mode to "do nothing".
    $this->config
      ->set('default_highlighting', GeshiFilter::DEFAULT_PLAINTEXT);
    $this->config
      ->set('use_format_specific_options', FALSE);
    $this->config
      ->set('tag_styles', [
      GeshiFilter::BRACKETS_ANGLE => GeshiFilter::BRACKETS_ANGLE,
      GeshiFilter::BRACKETS_SQUARE => GeshiFilter::BRACKETS_SQUARE,
    ]);
    $this->config
      ->set('default_line_numbering', GeshiFilter::LINE_NUMBERS_DEFAULT_NONE);
    $this->config
      ->save();
  }

  /**
   * Create a new text format.
   *
   * @param string $format_name
   *   The name of new text format.
   * @param array $filters
   *   Array with the machine names of filters to enable.
   */
  protected function createTextFormat($format_name, array $filters) {
    $edit = [];
    $edit['format'] = $format_name;
    $edit['name'] = $this
      ->randomMachineName();
    $edit['roles[' . DRUPAL_AUTHENTICATED_RID . ']'] = 1;
    foreach ($filters as $filter) {
      $edit['filters[' . $filter . '][status]'] = TRUE;
    }
    $this
      ->drupalPostForm('admin/config/content/formats/add', $edit, t('Save configuration'));
    $this
      ->assertRaw(t('Added text format %format.', [
      '%format' => $edit['name'],
    ]), 'New filter created.');
    $this
      ->drupalGet('admin/config/content/formats');
  }

  /**
   * Assert function for testing if GeSHi highlighting works.
   *
   * @param string $body
   *   The body text of the node.
   * @param array $check_list
   *   List of items that should be in rendered output (assertRaw).
   *   An item is something like array($source_code, $lang, $line_numbering,
   *   $linenumbers_start, $inline_mode). If $lang is set, GeSHifilter syntax
   *   highlighting is applied to $sourcecode. If $lang is false, $sourcecode is
   *   directly looked for.
   * @param string $description
   *   Description of the assertion.
   * @param bool $invert
   *   If assertNoRaw should be used instead of assertRaw.
   */
  protected function assertGeshiFilterHighlighting($body, array $check_list, $description, $invert = FALSE) {

    // Create a node.
    $node = [
      'title' => 'Test for GeShi Filter',
      'body' => [
        [
          'value' => $body . "\n" . $this
            ->randomMachineName(100),
          'format' => 'geshifilter_text_format',
        ],
      ],
      'type' => 'geshifilter_content_type',
    ];
    $this
      ->drupalCreateNode($node);
    $this
      ->drupalGet('node/' . $this->node);
    $this->node++;

    // $format = entity_load('filter_format', 'geshifilter_text_format');
    // $filter = $format->filters('geshifilter');
    // $format->settings['format'];.
    foreach ($check_list as $fragment) {
      list($source_code, $lang, $line_numbering, $linenumbers_start, $inline_mode) = $fragment;
      if ($lang) {

        // Apply syntax highlighting.
        $source_code = GeshiFilterProcess::geshiProcess($source_code, $lang, $line_numbering, $linenumbers_start, $inline_mode);
      }
      if ($invert) {
        $this
          ->assertNoRaw($source_code, $description);
      }
      else {
        $this
          ->assertRaw($source_code, $description);
      }
    }
  }

  /**
   * Test the standard functionality of the generic tags.
   */
  public function testGenericTags() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.c.enabled', TRUE);
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $this->config
      ->set('language.csharp.enabled', TRUE);
    $this->config
      ->set('language.java.enabled', TRUE);
    $this->config
      ->save();

    // Body material.
    $source_code = "//C++-ish source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // Check language argument.
    $this
      ->assertGeshiFilterHighlighting('<code type="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking type="..." argument'));
    $this
      ->assertGeshiFilterHighlighting('<code lang="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking lang="..." argument'));
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking language="..." argument'));

    // Check some languages.
    $languages = [
      'c',
      'cpp',
      'java',
    ];
    foreach ($languages as $lang) {
      $this
        ->assertGeshiFilterHighlighting('<code language="' . $lang . '">' . $source_code . '</code>', [
        [
          $source_code,
          $lang,
          0,
          1,
          FALSE,
        ],
      ], t('Checking language="@lang"', [
        '@lang' => $lang,
      ]));
    }

    // Check line_numbering argument.
    $this
      ->assertGeshiFilterHighlighting('<code type="cpp" linenumbers="off">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking linenumbers="off" argument'));
    $this
      ->assertGeshiFilterHighlighting('<code type="cpp" linenumbers="normal">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        1,
        1,
        FALSE,
      ],
    ], t('Checking linenumbers="normal" argument'));
    $this
      ->assertGeshiFilterHighlighting('<code type="cpp" start="27">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        1,
        27,
        FALSE,
      ],
    ], t('Checking start="27" argument'));
    $this
      ->assertGeshiFilterHighlighting('<code type="cpp" linenumbers="fancy">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        5,
        1,
        FALSE,
      ],
    ], t('Checking linenumbers="fancy" argument'));
    $this
      ->assertGeshiFilterHighlighting('<code type="cpp" fancy="3">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        3,
        1,
        FALSE,
      ],
    ], t('Checking fancy="3" argument'));
  }

  /**
   * Test with brackets only angle.
   */
  public function testBracketsOnlyAngle() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.cpp.enabled', TRUE);

    // Enable only angle brackets.
    $this->config
      ->set('tag_styles', [
      GeshiFilter::BRACKETS_ANGLE => GeshiFilter::BRACKETS_ANGLE,
    ]);
    $this->config
      ->save();
    $source_code = "//C++ source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // This should be filtered.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking angle brackets style in GeshiFilter::BRACKETS_ANGLE mode'));

    // This should not be filtered.
    $this
      ->assertGeshiFilterHighlighting('[code language="cpp"]' . $source_code . '[/code]', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking [foo] brackets style in GeshiFilter::BRACKETS_ANGLE mode'));
    $this
      ->assertGeshiFilterHighlighting('[[code language="cpp"]]' . $source_code . '[[/code]]', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking [[foo]] brackets style in GeshiFilter::BRACKETS_ANGLE mode'));
    $this
      ->assertGeshiFilterHighlighting('<?php' . $source_code . '?>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking php code blocks in GeshiFilter::BRACKETS_ANGLE mode'));
  }

  /**
   * Test with brackets only square.
   */
  public function testBracketsOnlySquare() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $source_code = "//C++ source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // Enable only square brackets.
    $this->config
      ->set('tag_styles', [
      GeshiFilter::BRACKETS_SQUARE => GeshiFilter::BRACKETS_SQUARE,
    ]);
    $this->config
      ->save();

    // This should be filtered.
    $this
      ->assertGeshiFilterHighlighting('[code language="cpp"]' . $source_code . '[/code]', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking [foo] brackets style in GeshiFilter::BRACKETS_SQUARE mode'));

    // This should not be filtered.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking angle brackets style in GeshiFilter::BRACKETS_SQUARE mode'));
    $this
      ->assertGeshiFilterHighlighting('[[code language="cpp"]]' . $source_code . '[[/code]]', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking [[foo]] brackets style in GeshiFilter::BRACKETS_SQUARE mode'));
    $this
      ->assertGeshiFilterHighlighting('<?php' . $source_code . '?>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking php code blocks in GeshiFilter::BRACKETS_SQUARE mode'));
  }

  /**
   * Test with brackets only double square.
   */
  public function testBracketsOnlyDoubleSquare() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $source_code = "//C++ source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // Enable only double square brackets.
    $this->config
      ->set('tag_styles', [
      GeshiFilter::BRACKETS_DOUBLESQUARE => GeshiFilter::BRACKETS_DOUBLESQUARE,
    ]);
    $this->config
      ->save();

    // This should be filtered.
    $this
      ->assertGeshiFilterHighlighting('[[code language="cpp"]]' . $source_code . '[[/code]]', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking [[foo]] brackets style in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));

    // This should not be filtered.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking angle brackets style in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));
    $this
      ->assertGeshiFilterHighlighting('[code language="cpp"]' . $source_code . '[/code]', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking [foo] brackets style in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));
    $this
      ->assertGeshiFilterHighlighting('<?php' . $source_code . '?>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking php code blocks in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));
  }

  /**
   * Test with markdown sintax.
   */
  public function testMarkdown() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $source_code = "//C++ source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // Enable only double square brackets.
    $this->config
      ->set('tag_styles', [
      GeshiFilter::BRACKETS_MARKDOWNBLOCK => GeshiFilter::BRACKETS_MARKDOWNBLOCK,
    ]);
    $this->config
      ->save();

    // This should be filtered.
    $this
      ->assertGeshiFilterHighlighting("```cpp\n" . $source_code . "\n```", [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking [[foo]] brackets style in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));

    // This should not be filtered.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking angle brackets style in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));
    $this
      ->assertGeshiFilterHighlighting('[code language="cpp"]' . $source_code . '[/code]', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking [foo] brackets style in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));
    $this
      ->assertGeshiFilterHighlighting('<?php' . $source_code . '?>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking php code blocks in GeshiFilter::BRACKETS_DOUBLESQUARE mode'));
  }

  /**
   * Test with brackets only php code block.
   */
  public function testBracketsOnlyPhpCodeBlock() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $source_code = "//C++ source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // Enable only double square brackets.
    $this->config
      ->set('tag_styles', [
      GeshiFilter::BRACKETS_PHPBLOCK => GeshiFilter::BRACKETS_PHPBLOCK,
    ]);
    $this->config
      ->save();

    // This should be filtered.
    $this
      ->assertGeshiFilterHighlighting('<?php' . $source_code . '?>', [
      [
        $source_code,
        'php',
        0,
        1,
        FALSE,
      ],
    ], t('Checking php code blocks in GeshiFilter::BRACKETS_PHPBLOCK mode'));

    // This should not be filtered.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking angle brackets style in GeshiFilter::BRACKETS_PHPBLOCK mode'));
    $this
      ->assertGeshiFilterHighlighting('[code language="cpp"]' . $source_code . '[/code]', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking [foo] brackets style in GeshiFilter::BRACKETS_PHPBLOCK mode'));
    $this
      ->assertGeshiFilterHighlighting('[[code language="cpp"]]' . $source_code . '[[/code]]', [
      [
        $source_code,
        NULL,
        0,
        1,
        FALSE,
      ],
    ], t('Checking [[foo]] brackets style in GeshiFilter::BRACKETS_PHPBLOCK mode'));
  }

  /**
   * Check if tags like [c++] and [c#] work.
   *
   * Problem described in http://drupal.org/node/208720.
   */
  public function testSpecialTags() {

    // Enabled the tags.
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $this->config
      ->set('language.cpp.tags', 'c++');
    $this->config
      ->set('language.csharp.enabled', TRUE);
    $this->config
      ->set('language.csharp.tags', 'c#');
    $this->config
      ->save();

    // Body material.
    $source_code = "//C++-ish source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // Test the tags.
    $this
      ->assertGeshiFilterHighlighting('<c++>' . $source_code . '</c++>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking <c++>..</c++>'));
    $this
      ->assertGeshiFilterHighlighting('<c#>' . $source_code . '</c#>', [
      [
        $source_code,
        'csharp',
        0,
        1,
        FALSE,
      ],
    ], t('Checking <c#>..</c#>'));
  }

  /**
   * Test if tags like [cpp], [css], [csharp] aren't highjacked by [c].
   */
  public function testPrefixTags() {

    // Enabled the tags.
    $this->config
      ->set('language.c.enabled', TRUE);
    $this->config
      ->set('language.c.tags', 'c');
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $this->config
      ->set('language.cpp.tags', 'cpp');
    $this->config
      ->set('language.csharp.enabled', TRUE);
    $this->config
      ->set('language.csharp.tags', 'csharp');
    $this->config
      ->save();

    // Body material.
    $source_code = "//C++-ish source code\nfor (int i=0; i<10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n server->start(&pool); \n}";

    // Test the tags.
    $this
      ->assertGeshiFilterHighlighting('<cpp>' . $source_code . '</cpp>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Source code in <cpp>...</cpp> should work when <c>...</c> is also enabled'));
    $this
      ->assertGeshiFilterHighlighting('<csharp>' . $source_code . '</csharp>', [
      [
        $source_code,
        'csharp',
        0,
        1,
        FALSE,
      ],
    ], t('Source code in <csharp>...</csharp> should work when <c>...</c> is also enabled'));
  }

  /**
   * Test for do nothing mode.
   */
  public function testDoNothingMode() {

    // Enable C++.
    $this->config
      ->set('language.cpp.enabled', TRUE);
    $this->config
      ->set('language.cpp.tags', 'cpp');

    // Set default highlighting mode to "do nothing".
    $this->config
      ->set('default_highlighting', GeshiFilter::DEFAULT_DONOTHING);
    $this->config
      ->save();

    // Body material with some characters ('<' and '&') that would be escaped
    // Except in "do nothing" mode.
    $source_code = "//C++-ish source code\nfor (int i=0; i!=10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n}";

    // Tests.
    $this
      ->assertGeshiFilterHighlighting('<code>' . $source_code . '</code>', [
      [
        '<code>' . $source_code . '</code>',
        FALSE,
        0,
        1,
        FALSE,
      ],
    ], t('Do nothing mode should not touch given source code'));
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Highlighting with language="cpp" should work when default is "do nothing"'));
    $this
      ->assertGeshiFilterHighlighting('<cpp>' . $source_code . '</cpp>', [
      [
        $source_code,
        'cpp',
        0,
        1,
        FALSE,
      ],
    ], t('Highlighting with <cpp>...</cpp> should work when default is "do nothing"'));
  }

  /**
   * Test title attribute on code block.
   */
  public function testTitleAttributeOnCodeBlock() {
    $source_code = "for (int i=0; i!=10; ++i) {\n  fun(i);\n  bar.foo(x, y);\n}";

    // No title set.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        'geshifilter-title',
        FALSE,
        0,
        0,
        0,
      ],
    ], t('Setting the title attritbute on code block.'), TRUE);

    // Title set.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp" title="Foo the bar!">' . $source_code . '</code>', [
      [
        '<div class="geshifilter-title">Foo the bar!</div>',
        FALSE,
        0,
        0,
        0,
      ],
    ], t('Setting the title attritbute on code block.'));
  }

  /**
   * Test title attribute on inline code.
   */
  public function testTitleAttributeOnInlineCode() {
    $source_code = "for (int i=0; i!=10; ++i) { fun(i); }";

    // No title set.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp">' . $source_code . '</code>', [
      [
        '<span class="geshifilter">',
        FALSE,
        0,
        0,
        0,
      ],
    ], t('Setting the title attritbute on inline code.'));

    // Title set.
    $this
      ->assertGeshiFilterHighlighting('<code language="cpp" title="Foo the bar!">' . $source_code . '</code>', [
      [
        '<span class="geshifilter" title="Foo the bar!">',
        FALSE,
        0,
        0,
        0,
      ],
    ], t('Setting the title attritbute on inline code.'));
  }

  /**
   * Issue http://drupal.org/node/1010216.
   */
  public function testSquareBracketConfusion() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.ini.enabled', TRUE);
    $source_code = "[section]\nserver=192.0.2.62  ; IP address\nport=12345";

    // Enable square brackets.
    $this->config
      ->set('tag_styles', [
      GeshiFilter::BRACKETS_SQUARE => GeshiFilter::BRACKETS_SQUARE,
    ]);
    $this->config
      ->save();

    // This should be filtered.
    $this
      ->assertGeshiFilterHighlighting('[code]' . $source_code . '[/code]', [
      [
        $source_code,
        'text',
        0,
        1,
        FALSE,
      ],
    ], t('Checking if [code][section]...[/code] works'));
    $this
      ->assertGeshiFilterHighlighting('[code language="ini"]' . $source_code . '[/code]', [
      [
        $source_code,
        'ini',
        0,
        1,
        FALSE,
      ],
    ], t('Checking if [code language="ini"][section]...[/code] works'));
  }

  /**
   * Issue https://www.drupal.org/node/2047021.
   */
  public function testSpecialChars() {
    $this->config
      ->set('tags', 'code');
    $this->config
      ->set('language.php.enabled', TRUE);
    $this->config
      ->set('decode_entities', TRUE);
    $this->config
      ->save();
    $source = '<code language="php"><?php echo("&lt;b&gt;Hi&lt;/b&gt;"); ?></code>';

    // Create a node.
    $node = [
      'title' => 'Test for Custom Filter',
      'body' => [
        [
          'value' => $source,
          'format' => 'geshifilter_text_format',
        ],
      ],
      'type' => 'geshifilter_content_type',
    ];
    $this
      ->drupalCreateNode($node);
    $this
      ->drupalGet('node/1');

    // The same string must be on page, not double encoded.
    $this
      ->assertRaw('&quot;&lt;b&gt;Hi&lt;/b&gt;&quot;', 'The code is not double encoded.');
  }

}

Classes

Name	Description
GeshiFilterTest	Tests for GeshiFilter in node content.