ElementTest.php

<?php

/**
 * @file
 * Definition of Drupal\system\Tests\Form\ElementTest.
 */
namespace Drupal\system\Tests\Form;

use Drupal\simpletest\WebTestBase;

/**
 * Tests building and processing of core form elements.
 */
class ElementTest extends WebTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = array(
    'form_test',
  );
  public static function getInfo() {
    return array(
      'name' => 'Element processing',
      'description' => 'Tests building and processing of core form elements.',
      'group' => 'Form API',
    );
  }

  /**
   * Tests placeholder text for elements that support placeholders.
   */
  function testPlaceHolderText() {
    $this
      ->drupalGet('form-test/placeholder-text');
    $expected = 'placeholder-text';

    // Test to make sure non-textarea elements have the proper placeholder text.
    foreach (array(
      'textfield',
      'tel',
      'url',
      'password',
      'email',
      'number',
    ) as $type) {
      $element = $this
        ->xpath('//input[@id=:id and @placeholder=:expected]', array(
        ':id' => 'edit-' . $type,
        ':expected' => $expected,
      ));
      $this
        ->assertTrue(!empty($element), format_string('Placeholder text placed in @type.', array(
        '@type' => $type,
      )));
    }

    // Test to make sure textarea has the proper placeholder text.
    $element = $this
      ->xpath('//textarea[@id=:id and @placeholder=:expected]', array(
      ':id' => 'edit-textarea',
      ':expected' => $expected,
    ));
    $this
      ->assertTrue(!empty($element), 'Placeholder text placed in textarea.');
  }

  /**
   * Tests expansion of #options for #type checkboxes and radios.
   */
  function testOptions() {
    $this
      ->drupalGet('form-test/checkboxes-radios');

    // Verify that all options appear in their defined order.
    foreach (array(
      'checkbox',
      'radio',
    ) as $type) {
      $elements = $this
        ->xpath('//input[@type=:type]', array(
        ':type' => $type,
      ));
      $expected_values = array(
        '0',
        'foo',
        '1',
        'bar',
        '>',
      );
      foreach ($elements as $element) {
        $expected = array_shift($expected_values);
        $this
          ->assertIdentical((string) $element['value'], $expected);
      }
    }

    // Enable customized option sub-elements.
    $this
      ->drupalGet('form-test/checkboxes-radios/customize');

    // Verify that all options appear in their defined order, taking a custom
    // #weight into account.
    foreach (array(
      'checkbox',
      'radio',
    ) as $type) {
      $elements = $this
        ->xpath('//input[@type=:type]', array(
        ':type' => $type,
      ));
      $expected_values = array(
        '0',
        'foo',
        'bar',
        '>',
        '1',
      );
      foreach ($elements as $element) {
        $expected = array_shift($expected_values);
        $this
          ->assertIdentical((string) $element['value'], $expected);
      }
    }

    // Verify that custom #description properties are output.
    foreach (array(
      'checkboxes',
      'radios',
    ) as $type) {
      $elements = $this
        ->xpath('//input[@id=:id]/following-sibling::div[@class=:class]', array(
        ':id' => 'edit-' . $type . '-foo',
        ':class' => 'description',
      ));
      $this
        ->assertTrue(count($elements), format_string('Custom %type option description found.', array(
        '%type' => $type,
      )));
    }
  }

  /**
   * Tests button classes.
   */
  function testButtonClasses() {
    $this
      ->drupalGet('form-test/button-class');

    // Just contains(@class, "form-button") won't do because then
    //  form-button-foo would contain form-button. Instead, check
    // ' form-button '. Make sure it matches in the beginning and the end too
    // by adding a space before and after.
    $this
      ->assertEqual(1, count($this
      ->xpath('//*[contains(concat(" ", @class, " "), " form-button ")]')));
    $this
      ->assertEqual(1, count($this
      ->xpath('//*[contains(concat(" ", @class, " "), " form-button-foo ")]')));
  }

}