Issue #3166543 by mondrake, partyka, longwave, larowlan, Lendude: Deprecate...

Issue #3166543 by mondrake, partyka, longwave, larowlan, Lendude: Deprecate UiHelperTrait::drupalPostForm, keep deprecation silenced

core/tests/Drupal/Tests/Listeners/DeprecationListenerTrait.php

@@ -121,6 +121,7 @@ public static function getSkippedDeprecations() {
       "The \"Drupal\Tests\Listeners\DrupalListener\" class uses \"PHPUnit\Framework\TestListenerDefaultImplementation\" that is deprecated The `TestListener` interface is deprecated.",
       "The \"PHPUnit\Framework\TestSuite\" class is considered internal This class is not covered by the backward compatibility promise for PHPUnit. It may change without further notice. You should not use it from \"Drupal\Tests\TestSuites\TestSuiteBase\".",
       // Simpletest's legacy assertion methods.
+      'UiHelperTrait::drupalPostForm() is deprecated in drupal:9.1.0 and is removed from drupal:10.0.0. Use $this->submitForm() instead. See https://www.drupal.org/node/3168858',
       'AssertLegacyTrait::assertEqual() is deprecated in drupal:8.0.0 and is removed from drupal:10.0.0. Use $this->assertEquals() instead. See https://www.drupal.org/node/3129738',
       'AssertLegacyTrait::assertNotEqual() is deprecated in drupal:8.0.0 and is removed from drupal:10.0.0. Use $this->assertNotEquals() instead. See https://www.drupal.org/node/3129738',
       'AssertLegacyTrait::assertIdentical() is deprecated in drupal:8.0.0 and is removed from drupal:10.0.0. Use $this->assertSame() instead. See https://www.drupal.org/node/3129738',

core/tests/Drupal/Tests/UiHelperTrait.php

@@ -188,8 +188,14 @@ protected function submitForm(array $edit, $submit, $form_html_id = NULL) {
    *   just use the webAssert object for your assertions.
    *
    * @see \Drupal\Tests\WebAssert::buttonExists()
+   *
+   * @deprecated in drupal:9.1.0 and is removed from drupal:10.0.0. Use
+   *   $this->submitForm() instead.
+   *
+   * @see https://www.drupal.org/node/3168858
    */
   protected function drupalPostForm($path, $edit, $submit, array $options = [], $form_html_id = NULL) {
+    @trigger_error('UiHelperTrait::drupalPostForm() is deprecated in drupal:9.1.0 and is removed from drupal:10.0.0. Use $this->submitForm() instead. See https://www.drupal.org/node/3168858', E_USER_DEPRECATED);
     if (is_object($submit)) {
       // Cast MarkupInterface objects to string.
       $submit = (string) $submit;