diff --git a/core/modules/system/tests/modules/theme_test/theme_test.module b/core/modules/system/tests/modules/theme_test/theme_test.module
index 2e6f164..41aa222 100644
--- a/core/modules/system/tests/modules/theme_test/theme_test.module
+++ b/core/modules/system/tests/modules/theme_test/theme_test.module
@@ -66,6 +66,10 @@ function theme_test_theme($existing, $type, $theme, $path) {
       'bar' => '',
     ],
   ];
+  $items['theme_test_registered_by_module'] = [
+    'render element' => 'content',
+    'base hook' => 'container',
+  ];
   return $items;
 }
 
diff --git a/core/modules/system/tests/themes/test_theme/templates/theme-test-registered-by-module.html.twig b/core/modules/system/tests/themes/test_theme/templates/theme-test-registered-by-module.html.twig
new file mode 100644
index 0000000..3432e01
--- /dev/null
+++ b/core/modules/system/tests/themes/test_theme/templates/theme-test-registered-by-module.html.twig
@@ -0,0 +1,2 @@
+{# Output for Theme API test #}
+Template provided by theme is registered by module.
diff --git a/core/tests/Drupal/KernelTests/Core/Theme/RegistryTest.php b/core/tests/Drupal/KernelTests/Core/Theme/RegistryTest.php
index a962fec..f3bf4ba 100644
--- a/core/tests/Drupal/KernelTests/Core/Theme/RegistryTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Theme/RegistryTest.php
@@ -192,4 +192,22 @@ public function testThemeSuggestions() {
     ], $suggestions, 'Found expected page node suggestions.');
   }
 
+  /**
+   * Tests theme-provided templates that are registered by modules.
+   */
+  public function testThemeTemplatesRegisteredByModules() {
+    $theme_handler = \Drupal::service('theme_handler');
+    $theme_handler->install(['test_theme']);
+
+    $registry_theme = new Registry(\Drupal::root(), \Drupal::cache(), \Drupal::lock(), \Drupal::moduleHandler(), $theme_handler, \Drupal::service('theme.initialization'), 'test_theme');
+    $registry_theme->setThemeManager(\Drupal::theme());
+
+    $expected = [
+      'template_preprocess',
+      'template_preprocess_container',
+    ];
+    $registry = $registry_theme->get();
+    $this->assertEquals($expected, $registry['theme_test_registered_by_module']['preprocess functions']);
+  }
+
 }