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[yaffs-website] / web / core / modules / system / tests / src / Functional / Form / AlterTest.php

diff --git a/web/core/modules/system/tests/src/Functional/Form/AlterTest.php b/web/core/modules/system/tests/src/Functional/Form/AlterTest.php
new file mode 100644 (file)
index 0000000..622a3d1
--- /dev/null
+++ b/web/core/modules/system/tests/src/Functional/Form/AlterTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Drupal\Tests\system\Functional\Form;
+
+use Drupal\Component\Utility\Xss;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests hook_form_alter() and hook_form_FORM_ID_alter().
+ *
+ * @group Form
+ */
+class AlterTest extends BrowserTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['block', 'form_test'];
+
+  /**
+   * Tests execution order of hook_form_alter() and hook_form_FORM_ID_alter().
+   */
+  public function testExecutionOrder() {
+    $this->drupalGet('form-test/alter');
+    // Ensure that the order is first by module, then for a given module, the
+    // id-specific one after the generic one.
+    $expected = [
+      'block_form_form_test_alter_form_alter() executed.',
+      'form_test_form_alter() executed.',
+      'form_test_form_form_test_alter_form_alter() executed.',
+      'system_form_form_test_alter_form_alter() executed.',
+    ];
+    $content = preg_replace('/\s+/', ' ', Xss::filter($this->getSession()->getPage()->getContent(), []));
+    $this->assert(strpos($content, implode(' ', $expected)) !== FALSE, 'Form alter hooks executed in the expected order.');
+  }
+
+}