<?php

/**
 * @file
 * Test case for testing the image example module.
 *
 * This file contains the tests cases to check if the module is performing as
 * expected.
 */

/**
 * Functional tests for the Image Example module.
 *
 * @ingroup image_example
 */
class ImageExampleTestCase extends DrupalWebTestCase {
  protected $webUser;

  /**
   * {@inheritdoc}
   */
  public static function getInfo() {
    return array(
      'name' => 'Image example functionality',
      'description' => 'Test functionality of the Image Example module.',
      'group' => 'Examples',
    );
  }

  /**
   * Enable modules and create user with specific permissions.
   */
  public function setUp() {
    parent::setUp('image_example');
    // Create user with permission to administer image styles.
    $this->webUser = $this->drupalCreateUser(array('administer image styles', 'administer blocks'));
  }

  /**
   * Test implementations of image API hooks.
   */
  public function testImageExample() {
    // Login the admin user.
    $this->drupalLogin($this->webUser);

    // Verify that the default style added by
    // image_example_image_default_styles() is in the list of image styles.
    $image_styles = image_styles();
    $this->assertTrue(isset($image_styles['image_example_style']), 'The default style image_example_style is in the list of image styles.');

    // Verify that the effect added to the default 'thumbnail' style by
    // image_example_image_styles_alter() is present.
    $this->assertTrue((isset($image_styles['thumbnail']['effects'][1]['name']) && $image_styles['thumbnail']['effects'][1]['name'] == 'image_example_colorize'), 'Effect added to the thumbnail style via hook_image_styles_alter() is present.');

    // Create a new image style and add the effect provided by
    // image_example_effect_info().
    $new_style = array('name' => drupal_strtolower($this->randomName()));
    $new_style = image_style_save($new_style);
    $this->assertTrue(isset($new_style['isid']), format_string('Image style @style_name created.', array('@style_name' => $new_style['name'])));

    $edit = array(
      'new' => 'image_example_colorize',
    );
    $this->drupalPost('admin/config/media/image-styles/edit/' . $new_style['name'], $edit, t('Add'));

    // Verify the 'color' field provided by image_example_colorize_form()
    // appears on the effect configuration page. And that we can fill it out.
    $this->assertField('data[color]', 'Color field provided by image_example_effect_colorize_form is present on effect configuration page.');
    $edit = array(
      'data[color]' => '#000000',
    );
    $this->drupalPost(NULL, $edit, t('Add effect'));
    $this->assertText(t('The image effect was successfully applied.'), format_string('Colorize effect added to @style_name.', array('@style_name' => $new_style['name'])));

    // Set the variable 'image_example_style_name' to the name of our new style
    // then rename the style and ensure the variable name is changed.
    // @todo Enable this block once http://drupal.org/node/713872 is fixed.
    if (defined('bug_713872_fixed')) {
      $style = image_style_load($new_style['name']);
      variable_set('image_example_style_name', $style['name']);
      $style['name'] = drupal_strtolower($this->randomName());
      $style = image_style_save($style);
      $variable = variable_get('image_example_style_name', '');
      $this->assertTrue(($variable == $style['name']), 'Variable image_example_style_name successfully updated when renaming image style.');
    }
  }

  /**
   * Tests for image block provided by module.
   */
  public function testImageExamplePage() {
    // Login the admin user.
    $this->drupalLogin($this->webUser);
    $this->drupalCreateNode(array('promote' => 1));

    // Upload an image to the image page.
    $images = $this->drupalGetTestFiles('image');
    $edit = array(
      'files[image_example_image_fid]' => drupal_realpath($images[0]->uri),
      'image_example_style_name' => 'image_example_style',
    );
    $this->drupalPost('image_example/styles', $edit, t('Save'));
    $this->assertText(t('The image @image_name was uploaded', array('@image_name' => $images[0]->filename)), 'Image uploaded to image block.');

    // Verify the image is displayed.
    $this->drupalGet('image_example/styles');
    $fid = variable_get('image_example_image_fid', FALSE);
    $image = isset($fid) ? file_load($fid) : NULL;
    $this->assertRaw(file_uri_target($image->uri), 'Image is displayed');
  }
}