<?php
// $Id$

/**
 * Base PHP test case class.
 */
class PHPTestCase extends DrupalWebTestCase {
  protected $php_code_format;

  function setUp() {
    parent::setUp('php');

    // Create and login admin user.
    $admin_user = $this->drupalCreateUser(array('administer filters'));
    $this->drupalLogin($admin_user);

    // Confirm that the PHP code text format was inserted as the newest format
    // on the site.
    $newest_format_id = db_query("SELECT MAX(format) FROM {filter_format}")->fetchField();
    $newest_format = filter_format_load($newest_format_id);
    $this->assertEqual($newest_format->name, 'PHP code', t('PHP code text format was created.'));

    // Store the format ID of the PHP code text format for later use.
    $this->php_code_format = $newest_format_id;
  }

  /**
   * Create a test node with PHP code in the body.
   *
   * @return stdObject Node object.
   */
  function createNodeWithCode() {
    return $this->drupalCreateNode(array('body' => array(FIELD_LANGUAGE_NONE => array(array('value' => '<?php print "SimpleTest PHP was executed!"; ?>')))));
  }
}

/**
 * Tests to make sure the PHP filter actually evaluates PHP code when used.
 */
class PHPFilterTestCase extends PHPTestCase {
  public static function getInfo() {
    return array(
      'name' => 'PHP filter functionality',
      'description' => 'Make sure that PHP filter properly evaluates PHP code when enabled.',
      'group' => 'PHP',
    );
  }

  /**
   * Make sure that the PHP filter evaluates PHP code when used.
   */
  function testPHPFilter() {
    // Log in as a user with permission to use the PHP code text format.
    $php_code_permission = filter_permission_name(filter_format_load($this->php_code_format));
    $web_user = $this->drupalCreateUser(array('access content', 'create page content', 'edit own page content', $php_code_permission));
    $this->drupalLogin($web_user);

    // Create a node with PHP code in it.
    $node = $this->createNodeWithCode();

    // Make sure that the PHP code shows up as text.
    $this->drupalGet('node/' . $node->nid);
    $this->assertText('print', t('PHP code is displayed.'));

    // Change filter to PHP filter and see that PHP code is evaluated.
    $edit = array();
    $langcode = FIELD_LANGUAGE_NONE;
    $edit["body[$langcode][0][value_format]"] = $this->php_code_format;
    $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
    $this->assertRaw(t('Page %title has been updated.', array('%title' => $node->title)), t('PHP code filter turned on.'));

    // Make sure that the PHP code shows up as text.
    $this->assertNoText('print', t('PHP code isn\'t displayed.'));
    $this->assertText('SimpleTest PHP was executed!', t('PHP code has been evaluated.'));
  }
}

/**
 * Tests to make sure access to the PHP filter is properly restricted.
 */
class PHPAccessTestCase extends PHPTestCase {
  public static function getInfo() {
    return array(
      'name' => 'PHP filter access check',
      'description' => 'Make sure that users who don\'t have access to the PHP filter can\'t see it.',
      'group' => 'PHP',
    );
  }

  /**
   * Make sure that user can't use the PHP filter when not given access.
   */
  function testNoPrivileges() {
    // Create node with PHP filter enabled.
    $web_user = $this->drupalCreateUser(array('access content', 'create page content', 'edit own page content'));
    $this->drupalLogin($web_user);
    $node = $this->createNodeWithCode();

    // Make sure that the PHP code shows up as text.
    $this->drupalGet('node/' . $node->nid);
    $this->assertText('print', t('PHP code is displayed.'));

    // Make sure that user doesn't have access to filter.
    $this->drupalGet('node/' . $node->nid . '/edit');
    $this->assertNoRaw('<option value="' . $this->php_code_format . '">', t('PHP code format not available.'));
  }
}