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[yaffs-website] / web / core / modules / system / tests / src / Kernel / Form / FormElementMaxlengthTest.php

diff --git a/web/core/modules/system/tests/src/Kernel/Form/FormElementMaxlengthTest.php b/web/core/modules/system/tests/src/Kernel/Form/FormElementMaxlengthTest.php
new file mode 100644 (file)
index 0000000..94026b6
--- /dev/null
+++ b/web/core/modules/system/tests/src/Kernel/Form/FormElementMaxlengthTest.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Drupal\Tests\system\Kernel\Form;
+
+use Drupal\Core\Form\FormInterface;
+use Drupal\Core\Form\FormState;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\KernelTests\KernelTestBase;
+use Symfony\Component\CssSelector\CssSelectorConverter;
+
+/**
+ * Tests the maxlength HTML attribute on form elements.
+ *
+ * @group Form
+ */
+class FormElementMaxlengthTest extends KernelTestBase implements FormInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['system'];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'form_test_maxlength';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    $form['title'] = [
+      '#type' => 'textfield',
+      '#maxlength' => 255,
+    ];
+
+    $form['description'] = [
+      '#type' => 'textarea',
+      '#maxlength' => 255,
+    ];
+
+    $form['submit'] = [
+      '#type' => 'submit',
+      '#value' => 'Submit',
+    ];
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {}
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateForm(array &$form, FormStateInterface $form_state) {}
+
+  /**
+   * Ensures maxlength attribute can be used in compatible elements.
+   */
+  public function testAttributes() {
+
+    /** @var \Drupal\Core\Form\FormBuilderInterface $form_builder */
+    $form_builder = $this->container->get('form_builder');
+    $form_state = new FormState();
+    $elements = $form_builder->buildForm($this, $form_state);
+    $this->render($elements);
+
+    $css_selector_converter = new CssSelectorConverter();
+    $elements = $this->xpath($css_selector_converter->toXPath('input[name=title][maxlength=255]'));
+    $this->assertCount(1, $elements, 'Text field has correct maxlength in form.');
+    $elements = $this->xpath($css_selector_converter->toXPath('textarea[name=description][maxlength=255]'));
+    $this->assertCount(1, $elements, 'Textarea field has correct maxlength in form.');
+  }
+
+}