EmailTest.php

<?php

namespace Drupal\Tests\system\Functional\Form;

use Drupal\Component\Serialization\Json;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests the form API email element.
 *
 * @group Form
 */
class EmailTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'form_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests that #type 'email' fields are properly validated.
     */
    public function testFormEmail() {
        $edit = [];
        $edit['email'] = 'invalid';
        $edit['email_required'] = ' ';
        $this->drupalPostForm('form-test/email', $edit, 'Submit');
        $this->assertRaw(t('The email address %mail is not valid.', [
            '%mail' => 'invalid',
        ]));
        $this->assertRaw(t('@name field is required.', [
            '@name' => 'Address',
        ]));
        $edit = [];
        $edit['email_required'] = '  foo.bar@example.com ';
        $this->drupalPostForm('form-test/email', $edit, 'Submit');
        $values = Json::decode($this->getSession()
            ->getPage()
            ->getContent());
        $this->assertIdentical($values['email'], '');
        $this->assertEqual($values['email_required'], 'foo.bar@example.com');
        $edit = [];
        $edit['email'] = 'foo@example.com';
        $edit['email_required'] = 'example@drupal.org';
        $this->drupalPostForm('form-test/email', $edit, 'Submit');
        $values = Json::decode($this->getSession()
            ->getPage()
            ->getContent());
        $this->assertEqual($values['email'], 'foo@example.com');
        $this->assertEqual($values['email_required'], 'example@drupal.org');
    }

}