<?php

/**
 * @file
 * Test file for Piwik module.
 */
class PiwikBasicTest extends DrupalWebTestCase {

  /**
   * User without permissions to edit snippets.
   *
   * @var \StdClass
   */
  protected $noSnippetUser;

  public static function getInfo() {
    return array(
      'name' => t('Piwik basic tests'),
      'description' => t('Test basic functionality of Piwik module.'),
      'group' => 'Piwik',
    );
  }

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

    $permissions = array(
      'access administration pages',
      'administer piwik',
    );

    // User to set up piwik.
    $this->noSnippetUser = $this->drupalCreateUser($permissions);
    $permissions[] = 'add JS snippets for piwik';
    $this->admin_user = $this->drupalCreateUser($permissions);
    $this->drupalLogin($this->admin_user);
  }

  function testPiwikConfiguration() {
    // Check for setting page's presence.
    $this->drupalGet('admin/config/system/piwik');
    $this->assertRaw(t('Piwik site ID'), '[testPiwikConfiguration]: Settings page displayed.');

    // Check for account code validation.
    $edit['piwik_site_id'] = $this->randomName(2);
    $this->drupalPost('admin/config/system/piwik', $edit, 'Save configuration');
    $this->assertRaw(t('A valid Piwik site ID is an integer only.'), '[testPiwikConfiguration]: Invalid Piwik site ID number validated.');

    // User should have access to code snippets.
    $this->assertFieldByName('piwik_codesnippet_before');
    $this->assertFieldByName('piwik_codesnippet_after');
    $this->assertNoFieldByXPath("//textarea[@name='piwik_codesnippet_before' and @disabled='disabled']", NULL, '"Code snippet (before)" is enabled.');
    $this->assertNoFieldByXPath("//textarea[@name='piwik_codesnippet_after' and @disabled='disabled']", NULL, '"Code snippet (after)" is enabled.');

    // Login as user without JS permissions.
    $this->drupalLogin($this->noSnippetUser);
    $this->drupalGet('admin/config/system/piwik');

    // User should *not* have access to snippets, but create fields.
    $this->assertFieldByName('piwik_codesnippet_before');
    $this->assertFieldByName('piwik_codesnippet_after');
    $this->assertFieldByXPath("//textarea[@name='piwik_codesnippet_before' and @disabled='disabled']", NULL, '"Code snippet (before)" is disabled.');
    $this->assertFieldByXPath("//textarea[@name='piwik_codesnippet_after' and @disabled='disabled']", NULL, '"Code snippet (after)" is disabled.');
  }

  function testPiwikPageVisibility() {
    $ua_code = '1';
    variable_set('piwik_site_id', $ua_code);
    variable_get('piwik_url_http', 'http://example.com/piwik/');
    variable_get('piwik_url_https', 'https://example.com/piwik/');

    // Show tracking on "every page except the listed pages".
    variable_set('piwik_visibility_pages', 0);
    // Disable tracking one "admin*" pages only.
    variable_set('piwik_pages', "admin\nadmin/*");
    // Enable tracking only for authenticated users only.
    variable_set('piwik_roles', array(DRUPAL_AUTHENTICATED_RID => DRUPAL_AUTHENTICATED_RID));

    // Check tracking code visibility.
    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikPageVisibility]: Tracking code is displayed for authenticated users.');

    // Test whether tracking code is not included on pages to omit.
    $this->drupalGet('admin');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikPageVisibility]: Tracking code is not displayed on admin page.');
    $this->drupalGet('admin/config/system/piwik');
    // Checking for tracking code URI here, as $ua_code is displayed in the form.
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikPageVisibility]: Tracking code is not displayed on admin subpage.');

    // Test whether tracking code display is properly flipped.
    variable_set('piwik_visibility_pages', 1);
    $this->drupalGet('admin');
    $this->assertRaw('u+"piwik.php"', '[testPiwikPageVisibility]: Tracking code is displayed on admin page.');
    $this->drupalGet('admin/config/system/piwik');
    // Checking for tracking code URI here, as $ua_code is displayed in the form.
    $this->assertRaw('u+"piwik.php"', '[testPiwikPageVisibility]: Tracking code is displayed on admin subpage.');
    $this->drupalGet('');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikPageVisibility]: Tracking code is NOT displayed on front page.');

    // Test whether tracking code is not display for anonymous.
    $this->drupalLogout();
    $this->drupalGet('');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikPageVisibility]: Tracking code is NOT displayed for anonymous.');

    // Switch back to every page except the listed pages.
    variable_set('piwik_visibility_pages', 0);
    // Enable tracking code for all user roles.
    variable_set('piwik_roles', array());

    // Test whether 403 forbidden tracking code is shown if user has no access.
    $this->drupalGet('admin');
    $this->assertRaw('"403/URL = "', '[testPiwikPageVisibility]: 403 Forbidden tracking code shown if user has no access.');

    // Test whether 404 not found tracking code is shown on non-existent pages.
    $this->drupalGet($this->randomName(64));
    $this->assertRaw('"404/URL = "', '[testPiwikPageVisibility]: 404 Not Found tracking code shown on non-existent page.');
  }

  function testPiwikTrackingCode() {
    $ua_code = '2';
    variable_set('piwik_site_id', $ua_code);
    variable_get('piwik_url_http', 'http://example.com/piwik/');
    variable_get('piwik_url_https', 'https://example.com/piwik/');

    // Show tracking code on every page except the listed pages.
    variable_set('piwik_visibility_pages', 0);
    // Enable tracking code for all user roles.
    variable_set('piwik_roles', array());

    /* Sample JS code as added to page:
    <script type="text/javascript">
    var _paq = _paq || [];
    (function(){
        var u=(("https:" == document.location.protocol) ? "https://{$PIWIK_URL}" : "http://{$PIWIK_URL}");
        _paq.push(['setSiteId', {$IDSITE}]);
        _paq.push(['setTrackerUrl', u+'piwik.php']);
        _paq.push(['trackPageView']);
        var d=document,
            g=d.createElement('script'),
            s=d.getElementsByTagName('script')[0];
            g.type='text/javascript';
            g.defer=true;
            g.async=true;
            g.src=u+'piwik.js';
            s.parentNode.insertBefore(g,s);
    })();
    </script>
    */

    // Test whether tracking code uses latest JS.
    variable_set('piwik_cache', 0);
    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikTrackingCode]: Latest tracking code used.');

    // Test if tracking of User ID is enabled.
    variable_set('piwik_trackuserid', 1);
    $this->drupalGet('');
    $this->assertRaw('_paq.push(["setUserId", ', '[testPiwikTrackingCode]: Tracking code for User ID is enabled.');

    // Test if tracking of User ID is disabled.
    variable_set('piwik_trackuserid', 0);
    $this->drupalGet('');
    $this->assertNoRaw('_paq.push(["setUserId", ', '[testPiwikTrackingCode]: Tracking code for User ID is disabled.');

    // Test whether single domain tracking is active.
    $this->drupalGet('');
    $this->assertNoRaw('_paq.push(["setCookieDomain"', '[testPiwikTrackingCode]: Single domain tracking is active.');

    // Enable "One domain with multiple subdomains".
    variable_set('piwik_domain_mode', 1);
    $this->drupalGet('');

    // Test may run on localhost, an ipaddress or real domain name.
    // TODO: Workaround to run tests successfully. This feature cannot tested reliable.
    global $cookie_domain;
    if (count(explode('.', $cookie_domain)) > 2 && !is_numeric(str_replace('.', '', $cookie_domain))) {
      $this->assertRaw('_paq.push(["setCookieDomain"', '[testPiwikTrackingCode]: One domain with multiple subdomains is active on real host.');
    }
    else {
      // Special cases, Localhost and IP addresses don't show 'setCookieDomain'.
      $this->assertNoRaw('_paq.push(["setCookieDomain"', '[testPiwikTrackingCode]: One domain with multiple subdomains may be active on localhost (test result is not reliable).');
    }

    // Test whether the BEFORE and AFTER code is added to the tracker.
    variable_set('piwik_codesnippet_before', '_paq.push(["setLinkTrackingTimer", 250]);');
    variable_set('piwik_codesnippet_after', '_paq.push(["t2.setSiteId", 2]);_gaq.push(["t2.trackPageView"]);');
    $this->drupalGet('');
    $this->assertRaw('setLinkTrackingTimer', '[testPiwikTrackingCode]: Before codesnippet has been found with "setLinkTrackingTimer" set.');
    $this->assertRaw('t2.trackPageView', '[testPiwikTrackingCode]: After codesnippet with "t2" tracker has been found.');
  }

}

class PiwikCustomVariablesTest extends DrupalWebTestCase {

  public static function getInfo() {
    return array(
      'name' => t('Piwik Custom Variables tests'),
      'description' => t('Test custom variables functionality of Piwik module.'),
      'group' => 'Piwik',
      'dependencies' => array('token'),
    );
  }

  function setUp() {
    parent::setUp('piwik', 'token');

    $permissions = array(
      'access administration pages',
      'administer piwik',
    );

    // User to set up piwik.
    $this->admin_user = $this->drupalCreateUser($permissions);
  }

  function testPiwikCustomVariables() {
    $ua_code = '3';
    variable_set('piwik_site_id', $ua_code);

    // Basic test if the feature works.
    $custom_vars = array(
      'slots' => array(
        1 => array(
          'slot' => 1,
          'name' => 'Foo 1',
          'value' => 'Bar 1',
          'scope' => 3,
        ),
        2 => array(
          'slot' => 2,
          'name' => 'Foo 2',
          'value' => 'Bar 2',
          'scope' => 2,
        ),
        3 => array(
          'slot' => 3,
          'name' => 'Foo 3',
          'value' => 'Bar 3',
          'scope' => 3,
        ),
        4 => array(
          'slot' => 4,
          'name' => 'Foo 4',
          'value' => 'Bar 4',
          'scope' => 2,
        ),
        5 => array(
          'slot' => 5,
          'name' => 'Foo 5',
          'value' => 'Bar 5',
          'scope' => 1,
        ),
      )
    );
    variable_set('piwik_custom_var', $custom_vars);
    $this->drupalGet('');

    foreach ($custom_vars['slots'] as $slot) {
      $this->assertRaw("_paq.push(['setCustomVariable', " . $slot['slot'] . ", \"" . $slot['name'] . "\", \"" . $slot['value'] . "\", " . $slot['scope'] . "]);", '[testPiwikCustomVariables]: setCustomVariable ' . $slot['slot'] . ' is shown.');
    }

    // Test whether tokens are replaced in custom variable names.
    $site_slogan = $this->randomName(16);
    variable_set('site_slogan', $site_slogan);

    $custom_vars = array(
      'slots' => array(
        1 => array(
          'slot' => 1,
          'name' => 'Name: [site:slogan]',
          'value' => 'Value: [site:slogan]',
          'scope' => 3,
        ),
        2 => array(
          'slot' => 2,
          'name' => '',
          'value' => $this->randomName(16),
          'scope' => 1,
        ),
        3 => array(
          'slot' => 3,
          'name' => $this->randomName(16),
          'value' => '',
          'scope' => 2,
        ),
        4 => array(
          'slot' => 4,
          'name' => '',
          'value' => '',
          'scope' => 3,
        ),
        5 => array(
          'slot' => 5,
          'name' => '',
          'value' => '',
          'scope' => 3,
        ),
      )
    );
    variable_set('piwik_custom_var', $custom_vars);
    $this->verbose('<pre>' . print_r($custom_vars, TRUE) . '</pre>');

    $this->drupalGet('');
    $this->assertRaw("_paq.push(['setCustomVariable', 1, \"Name: $site_slogan\", \"Value: $site_slogan\", 3]", '[testPiwikCustomVariables]: Tokens have been replaced in custom variable.');
    $this->assertNoRaw("_paq.push(['setCustomVariable', 2,", '[testPiwikCustomVariables]: Value with empty name is not shown.');
    $this->assertNoRaw("_paq.push(['setCustomVariable', 3,", '[testPiwikCustomVariables]: Name with empty value is not shown.');
    $this->assertNoRaw("_paq.push(['setCustomVariable', 4,", '[testPiwikCustomVariables]: Empty name and value is not shown.');
    $this->assertNoRaw("_paq.push(['setCustomVariable', 5,", '[testPiwikCustomVariables]: Empty name and value is not shown.');
  }
}

class PiwikStatusMessagesTest extends DrupalWebTestCase {

  public static function getInfo() {
    return array(
      'name' => 'Piwik status messages tests',
      'description' => 'Test status messages functionality of Piwik module.',
      'group' => 'Piwik',
    );
  }

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

    $permissions = array(
      'access administration pages',
      'administer piwik',
    );

    // User to set up piwik.
    $this->admin_user = $this->drupalCreateUser($permissions);
  }

  function testPiwikStatusMessages() {
    $ua_code = '1';
    variable_set('piwik_site_id', $ua_code);

    // Enable logging of errors only.
    variable_set('piwik_trackmessages', array('error' => 'error'));

    $this->drupalPost('user/login', array(), t('Log in'));
    $this->assertRaw('_paq.push(["trackEvent", "Messages", "Error message", "Username field is required."]);', '[testPiwikStatusMessages]: trackEvent "Username field is required." is shown.');
    $this->assertRaw('_paq.push(["trackEvent", "Messages", "Error message", "Password field is required."]);', '[testPiwikStatusMessages]: trackEvent "Password field is required." is shown.');

    // @todo: investigate why drupal_set_message() fails.
    //drupal_set_message('Example status message.', 'status');
    //drupal_set_message('Example warning message.', 'warning');
    //drupal_set_message('Example error message.', 'error');
    //drupal_set_message('Example error <em>message</em> with html tags and <a href="http://example.com/">link</a>.', 'error');
    //$this->drupalGet('');
    //$this->assertNoRaw('_paq.push(["trackEvent", "Messages", "Status message", "Example status message."]);', '[testPiwikStatusMessages]: Example status message is not enabled for tracking.');
    //$this->assertNoRaw('_paq.push(["trackEvent", "Messages", "Warning message", "Example warning message."]);', '[testPiwikStatusMessages]: Example warning message is not enabled for tracking.');
    //$this->assertRaw('_paq.push(["trackEvent", "Messages", "Error message", "Example error message."]);', '[testPiwikStatusMessages]: Example error message is shown.');
    //$this->assertRaw('_paq.push(["trackEvent", "Messages", "Error message", "Example error message with html tags and link."]);', '[testPiwikStatusMessages]: HTML has been stripped successful from Example error message with html tags and link.');
  }
}

class PiwikRolesTest extends DrupalWebTestCase {

  public static function getInfo() {
    return array(
      'name' => t('Piwik role tests'),
      'description' => t('Test roles functionality of Piwik module.'),
      'group' => 'Piwik',
    );
  }

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

    $permissions = array(
      'access administration pages',
      'administer piwik',
    );

    // User to set up piwik.
    $this->admin_user = $this->drupalCreateUser($permissions);
  }

  function testPiwikRolesTracking() {
    $ua_code = '1';
    variable_set('piwik_site_id', $ua_code);
    variable_get('piwik_url_http', 'http://example.com/piwik/');
    variable_get('piwik_url_https', 'https://example.com/piwik/');

    // Test if the default settings are working as expected.

    // Add to the selected roles only.
    variable_set('piwik_visibility_roles', 0);
    // Enable tracking for all users.
    variable_set('piwik_roles', array());

    // Check tracking code visibility.
    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is displayed for anonymous users on frontpage with default settings.');
    $this->drupalGet('admin');
    $this->assertRaw('"403/URL = "', '[testPiwikRoleVisibility]: 403 Forbidden tracking code is displayed for anonymous users in admin section with default settings.');

    $this->drupalLogin($this->admin_user);

    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is displayed for authenticated users on frontpage with default settings.');
    $this->drupalGet('admin');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is NOT displayed for authenticated users in admin section with default settings.');

    // Test if the non-default settings are working as expected.

    // Enable tracking only for authenticated users.
    variable_set('piwik_roles', array(DRUPAL_AUTHENTICATED_RID => DRUPAL_AUTHENTICATED_RID));

    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is displayed for authenticated users only on frontpage.');

    $this->drupalLogout();
    $this->drupalGet('');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is NOT displayed for anonymous users on frontpage.');

    // Add to every role except the selected ones.
    variable_set('piwik_visibility_roles', 1);
    // Enable tracking for all users.
    variable_set('piwik_roles', array());

    // Check tracking code visibility.
    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is added to every role and displayed for anonymous users.');
    $this->drupalGet('admin');
    $this->assertRaw('"403/URL = "', '[testPiwikRoleVisibility]: 403 Forbidden tracking code is shown for anonymous users if every role except the selected ones is selected.');

    $this->drupalLogin($this->admin_user);

    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is added to every role and displayed on frontpage for authenticated users.');
    $this->drupalGet('admin');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is added to every role and NOT displayed in admin section for authenticated users.');

    // Disable tracking for authenticated users.
    variable_set('piwik_roles', array(DRUPAL_AUTHENTICATED_RID => DRUPAL_AUTHENTICATED_RID));

    $this->drupalGet('');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is NOT displayed on frontpage for excluded authenticated users.');
    $this->drupalGet('admin');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is NOT displayed in admin section for excluded authenticated users.');

    $this->drupalLogout();
    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikRoleVisibility]: Tracking code is displayed on frontpage for included anonymous users.');
  }

}

class PiwikPhpFilterTest extends DrupalWebTestCase {

  public static function getInfo() {
    return array(
      'name' => 'Piwik php filter tests',
      'description' => 'Test php filter functionality of Piwik module.',
      'group' => 'Piwik',
    );
  }

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

    // Administrator with all permissions.
    $permissions_admin_user = array(
      'access administration pages',
      'administer piwik',
      'use PHP for tracking visibility',
    );
    $this->admin_user = $this->drupalCreateUser($permissions_admin_user);

    // Administrator who cannot configure tracking visibility with PHP.
    $permissions_delegated_admin_user = array(
      'access administration pages',
      'administer piwik',
    );
    $this->delegated_admin_user = $this->drupalCreateUser($permissions_delegated_admin_user);
  }

  function testPiwikPhpFilter() {
    $ua_code = '1';
    $this->drupalLogin($this->admin_user);

    $edit = array();
    $edit['piwik_site_id'] = $ua_code;
    $edit['piwik_url_http'] = 'http://example.com/piwik/';
    $edit['piwik_url_https'] = 'https://example.com/piwik/';
    $edit['piwik_url_skiperror'] = TRUE; // Required for testing only.
    $edit['piwik_visibility_pages'] = 2;
    $edit['piwik_pages'] = '<?php return 0; ?>';
    $this->drupalPost('admin/config/system/piwik', $edit, t('Save configuration'));

    // Compare saved setting with posted setting.
    $piwik_pages = variable_get('piwik_pages', $this->randomName(8));
    $this->assertEqual('<?php return 0; ?>', $piwik_pages, '[testPiwikPhpFilter]: PHP code snippet is intact.');

    // Check tracking code visibility.
    variable_set('piwik_pages', '<?php return TRUE; ?>');
    $this->drupalGet('');
    $this->assertRaw('u+"piwik.php"', '[testPiwikPhpFilter]: Tracking is displayed on frontpage page.');
    $this->drupalGet('admin');
    $this->assertRaw('u+"piwik.php"', '[testPiwikPhpFilter]: Tracking is displayed on admin page.');

    variable_set('piwik_pages', '<?php return FALSE; ?>');
    $this->drupalGet('');
    $this->assertNoRaw('u+"piwik.php"', '[testPiwikPhpFilter]: Tracking is not displayed on frontpage page.');

    // Test administration form.
    variable_set('piwik_pages', '<?php return TRUE; ?>');
    $this->drupalGet('admin/config/system/piwik');
    $this->assertRaw(t('Pages on which this PHP code returns <code>TRUE</code> (experts only)'), '[testPiwikPhpFilter]: Permission to administer PHP for tracking visibility.');
    $this->assertRaw(check_plain('<?php return TRUE; ?>'), '[testPiwikPhpFilter]: PHP code snippted is displayed.');

    // Login the delegated user and check if fields are visible.
    $this->drupalLogin($this->delegated_admin_user);
    $this->drupalGet('admin/config/system/piwik');
    $this->assertNoRaw(t('Pages on which this PHP code returns <code>TRUE</code> (experts only)'), '[testPiwikPhpFilter]: No permission to administer PHP for tracking visibility.');
    $this->assertNoRaw(check_plain('<?php return TRUE; ?>'), '[testPiwikPhpFilter]: No permission to view PHP code snippted.');

    // Set a different value and verify that this is still the same after the post.
    variable_set('piwik_pages', '<?php return 0; ?>');

    $edit = array();
    $edit['piwik_site_id'] = $ua_code;
    $edit['piwik_url_http'] = 'http://example.com/piwik/';
    $edit['piwik_url_https'] = 'https://example.com/piwik/';
    $edit['piwik_url_skiperror'] = TRUE; // Required for testing only.
    $this->drupalPost('admin/config/system/piwik', $edit, t('Save configuration'));

    // Compare saved setting with posted setting.
    $piwik_visibility_pages = variable_get('piwik_visibility_pages', 0);
    $piwik_pages = variable_get('piwik_pages', $this->randomName(8));
    $this->assertEqual(2, $piwik_visibility_pages, '[testPiwikPhpFilter]: Pages on which this PHP code returns TRUE is selected.');
    $this->assertEqual('<?php return 0; ?>', $piwik_pages, '[testPiwikPhpFilter]: PHP code snippet is intact.');
  }

}