Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/system/tests/themes/test_basetheme/config/install/core.date_format.fancy.yml

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+# Themes are not supposed to provide/install this kind of config normally.
+# This exists for testing purposes only.
+# @see \Drupal\system\Tests\Extension\ThemeInstallerTest
+id: fancy
+label: 'Fancy date'
+status: true
+langcode: en
+locked: false
+pattern: 'U'
+dependencies:
+  theme:
+    - test_basetheme
+  enforced:
+    theme:
+      - test_basetheme

core/modules/system/tests/themes/test_basetheme/config/install/test_basetheme.settings.yml

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+features:
+  favicon: false
+base: only
+override: base

core/modules/system/tests/themes/test_basetheme/config/schema/test_basetheme.schema.yml

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+test_basetheme.settings:
+  type: theme_settings
+  label: 'Test base theme settings'
+  mapping:
+    base:
+      type: string
+      label: 'Base theme setting'
+    override:
+      type: string
+      label: 'Whether the setting has been overridden'

core/modules/system/tests/themes/test_basetheme/test_basetheme.info.yml

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+name: 'Theme test base theme'
+type: theme
+description: 'Test theme which acts as a base theme for other test subthemes.'
+version: VERSION
+core: 8.x
+libraries:
+  - test_basetheme/global-styling
+stylesheets-remove:
+  - '@theme_test/css/base-remove.css'

core/modules/system/tests/themes/test_basetheme/test_basetheme.libraries.yml

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+global-styling:
+  version: VERSION
+  css:
+    base:
+      base-add.css: {}
+      base-add.sub-remove.css: {}
+      samename.css: {}

core/modules/system/tests/themes/test_basetheme/test_basetheme.theme

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+<?php
+
+/**
+ * @file
+ * Add hooks for tests to use.
+ */
+use Drupal\views\ViewExecutable;
+
+/**
+ * Implements hook_views_pre_render().
+ */
+function test_basetheme_views_pre_render(ViewExecutable $view) {
+  // We append the function name to the title for test to check for.
+  $view->setTitle($view->getTitle() . ":" . __FUNCTION__);
+}
+
+/**
+ * Implements hook_views_post_render().
+ */
+function test_basetheme_views_post_render(ViewExecutable $view) {
+  // We append the function name to the title for test to check for.
+  $view->setTitle($view->getTitle() . ":" . __FUNCTION__);
+}
+
+/**
+ * Implements hook_preprocess_HOOK() for theme_test_template_test templates.
+ */
+function test_basetheme_preprocess_theme_test_template_test(&$variables) {
+}

core/modules/system/tests/themes/test_invalid_basetheme/test_invalid_basetheme.info.yml

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+name: 'Theme test with invalid base theme'
+type: theme
+description: 'Test theme which has a non-existent base theme.'
+version: VERSION
+core: 8.x
+base theme: not_real_test_basetheme

core/modules/system/tests/themes/test_invalid_engine/test_invalid_engine.info.yml

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+name: 'Theme test with invalid theme engine'
+type: theme
+description: 'Test theme which has a non-existent theme engine.'
+version: VERSION
+core: 8.x
+engine: not_real_engine

core/modules/system/tests/themes/test_subsubtheme/test_subsubtheme.info.yml

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+name: 'Theme test subsubtheme'
+type: theme
+description: 'Test theme which uses test_subtheme as the base theme.'
+version: VERSION
+core: 8.x
+base theme: test_subtheme

core/modules/system/tests/themes/test_subsubtheme/test_subsubtheme.theme

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+<?php
+
+/**
+ * @file
+ * Add hooks for tests to use.
+ */
+
+/**
+ * Implements hook_preprocess_HOOK() for theme_test_template_test templates.
+ */
+function test_subsubtheme_preprocess_theme_test_template_test(&$variables) {
+}
+

core/modules/system/tests/themes/test_subtheme/config/install/test_subtheme.settings.yml

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+override: sub

core/modules/system/tests/themes/test_subtheme/config/schema/test_subtheme.schema.yml

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+test_subtheme.settings:
+  type: theme_settings
+  label: 'Test sub theme settings'
+  mapping:
+    override:
+      type: string
+      label: 'Whether the setting has been overridden'

core/modules/system/tests/themes/test_subtheme/test_subtheme.info.yml

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+name: 'Theme test subtheme'
+type: theme
+description: 'Test theme which uses test_basetheme as the base theme.'
+version: VERSION
+core: 8.x
+base theme: test_basetheme
+libraries:
+  - test_subtheme/global-styling
+stylesheets-remove:
+  - '@theme_test/css/sub-remove.css'
+  - '@test_basetheme/base-add.sub-remove.css'

core/modules/system/tests/themes/test_subtheme/test_subtheme.libraries.yml

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+global-styling:
+  version: VERSION
+  css:
+    base:
+      css/sub-add.css: {}
+      css/samename.css: {}

core/modules/system/tests/themes/test_subtheme/test_subtheme.theme

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+<?php
+
+/**
+ * @file
+ * Add hooks for tests to use.
+ */
+
+use Drupal\views\ViewExecutable;
+
+/**
+ * Implements hook_views_pre_render().
+ */
+function test_subtheme_views_pre_render(ViewExecutable $view) {
+  // We append the function name to the title for test to check for.
+  $view->setTitle($view->getTitle() . ":" . __FUNCTION__);
+}
+
+/**
+ * Implements hook_views_post_render().
+ */
+function test_subtheme_views_post_render(ViewExecutable $view) {
+  // We append the function name to the title for test to check for.
+  $view->setTitle($view->getTitle() . ":" . __FUNCTION__);
+}
+
+/**
+ * Implements hook_preprocess_HOOK() for theme_test_template_test templates.
+ */
+function test_subtheme_preprocess_theme_test_template_test(&$variables) {
+}

core/modules/system/tests/themes/test_theme/node--1.html.twig

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+{#
+  // node--1.html.twig - Dummy file for finding the template
+#}
+Node Content Dummy

core/modules/system/tests/themes/test_theme/src/ThemeClass.php

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+<?php
+
+/**
+ * @file
+ * Contains \Drupal\test_theme\ThemeClass.
+ */
+
+namespace Drupal\test_theme;
+
+/**
+ * Represents a random class, used to test if themes can provide classes.
+ */
+class ThemeClass { }

core/modules/system/tests/themes/test_theme/templates/theme-test-general-suggestions--module-override.html.twig

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+{# Output for Theme API test #}
+Template overridden based on new theme suggestion provided by a module via hook_theme_suggestions_alter().

core/modules/system/tests/themes/test_theme/templates/theme-test-general-suggestions--theme-override.html.twig

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+{# Output for Theme API test #}
+Template overridden based on new theme suggestion provided by the test_theme theme via hook_theme_suggestions_alter().

core/modules/system/tests/themes/test_theme/templates/theme-test-specific-suggestions--variant--foo.html.twig

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+{# Output for Theme API test #}
+Template overridden based on suggestion alter hook determined by the base hook.
+
+<p>Theme hook suggestions:
+{{ theme_hook_suggestions|safe_join("<br />") }}</p>

core/modules/system/tests/themes/test_theme/templates/theme-test-specific-suggestions--variant.html.twig

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+{# Output for Theme API test #}
+Template matching the specific theme call.
+
+<p>Theme hook suggestions:
+{{ theme_hook_suggestions|safe_join("<br />") }}</p>

core/modules/system/tests/themes/test_theme/templates/theme-test-suggestion-provided--foo.html.twig

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+{# Output for Theme API test #}
+Template overridden based on suggestion provided by the module declaring the theme hook.

core/modules/system/tests/themes/test_theme/templates/theme-test-suggestions--module-override.html.twig

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+{# Output for Theme API test #}
+Template overridden based on new theme suggestion provided by a module via hook_theme_suggestions_HOOK_alter().

core/modules/system/tests/themes/test_theme/templates/theme-test-suggestions--theme-override.html.twig

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+{# Output for Theme API test #}
+Template overridden based on new theme suggestion provided by the test_theme theme via hook_theme_suggestions_HOOK_alter().

core/modules/system/tests/themes/test_theme/test_theme.info.yml

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+# Normally, themes may list CSS files like this, and if they exist in the theme
+# folder, then they get added to the page. If they have the same file name as a
+# module CSS file, then the theme's version overrides the module's version, so
+# that the module's version is not added to the page. Additionally, a theme may
+# have an entry like this one, without having the corresponding CSS file in the
+# theme's folder, and in this case, it just stops the module's version from
+# being loaded, and does not replace it with an alternate version. We have this
+# here in order for a test to ensure that this correctly prevents the module
+# version from being loaded, and that errors aren't caused by the lack of this
+# file within the theme folder.
+name: 'Test theme'
+type: theme
+description: 'Theme for testing the theme system'
+version: VERSION
+base theme: classy
+core: 8.x
+stylesheets-remove:
+  - '@system/css/system.module.css'
+libraries:
+  - test_theme/global-styling
+regions:
+  content: Content
+  left: Left
+  right: Right

core/modules/system/tests/themes/test_theme/test_theme.libraries.yml

@@ -0,0 +1,5 @@
+global-styling:
+  version: VERSION
+  css:
+    base:
+      kitten.css: {}

core/modules/system/tests/themes/test_theme/test_theme.theme

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+<?php
+
+/**
+ * @file
+ * Theme to help test the Twig engine.
+ */
+
+/**
+ * Implements THEME_preprocess_twig_theme_test_php_variables().
+ */
+function test_theme_preprocess_twig_theme_test_php_variables(&$variables) {
+  $variables['php_values'] = _test_theme_twig_php_values();
+}
+
+/**
+ * Tests a theme overriding a suggestion of a base theme hook.
+ */
+function test_theme_theme_test__suggestion($variables) {
+  return 'Theme hook implementor=test_theme_theme_test__suggestion(). Foo=' . $variables['foo'];
+}
+
+/**
+ * Implements hook_element_info_alter().
+ */
+function test_theme_element_info_alter(&$info) {
+  // Decrease the default size of textfields.
+  if (isset($info['textfield']['#size'])) {
+    $info['textfield']['#size'] = 40;
+  }
+}
+
+function test_theme_library_info_alter(&$libraries) {
+  $libraries['kitten']['js'][] = 'kittens.js';
+}
+
+/**
+ * Tests a theme implementing an alter hook.
+ *
+ * The confusing function name here is due to this being an implementation of
+ * the alter hook invoked when the 'theme_test' module calls
+ * \Drupal::moduleHandler->alter('theme_test_alter').
+ */
+function test_theme_theme_test_alter_alter(&$data) {
+  $data = 'test_theme_theme_test_alter_alter was invoked';
+}
+
+/**
+ * Implements hook_theme_suggestions_alter().
+ */
+function test_theme_theme_suggestions_alter(array &$suggestions, array $variables, $hook) {
+  drupal_set_message(__FUNCTION__ . '() executed.');
+  // Theme alter hooks run after module alter hooks, so add this theme
+  // suggestion to the beginning of the array so that the suggestion added by
+  // the theme_suggestions_test module can be picked up when that module is
+  // enabled.
+  if ($hook == 'theme_test_general_suggestions') {
+    array_unshift($suggestions, 'theme_test_general_suggestions__' . 'theme_override');
+  }
+}
+
+/**
+ * Implements hook_theme_suggestions_HOOK_alter().
+ */
+function test_theme_theme_suggestions_theme_test_suggestions_alter(array &$suggestions, array $variables) {
+  drupal_set_message(__FUNCTION__ . '() executed.');
+  // Theme alter hooks run after module alter hooks, so add this theme
+  // suggestion to the beginning of the array so that the suggestion added by
+  // the theme_suggestions_test module can be picked up when that module is
+  // enabled.
+  array_unshift($suggestions, 'theme_test_suggestions__' . 'theme_override');
+}
+
+/**
+ * Implements hook_theme_suggestions_HOOK_alter().
+ */
+function test_theme_theme_suggestions_theme_test_function_suggestions_alter(array &$suggestions, array $variables) {
+  // Theme alter hooks run after module alter hooks, so add this theme
+  // suggestion to the beginning of the array so that the suggestion added by
+  // the theme_suggestions_test module can be picked up when that module is
+  // enabled.
+  array_unshift($suggestions, 'theme_test_function_suggestions__' . 'theme_override');
+}
+
+/**
+ * Returns HTML for a theme function suggestion test.
+ *
+ * Implements the theme_test_function_suggestions__theme_override suggestion.
+ */
+function test_theme_theme_test_function_suggestions__theme_override($variables) {
+  return 'Theme function overridden based on new theme suggestion provided by the test_theme theme.';
+}
+
+/**
+ * Returns HTML for a theme function suggestion test.
+ *
+ * Implements the theme_test_function_suggestions__module_override suggestion.
+ */
+function test_theme_theme_test_function_suggestions__module_override($variables) {
+  return 'Theme function overridden based on new theme suggestion provided by a module.';
+}
+
+/**
+ * Implements hook_theme_registry_alter().
+ */
+function test_theme_theme_registry_alter(&$registry) {
+  $registry['theme_test_template_test']['variables']['additional'] = 'value';
+}

core/modules/system/tests/themes/test_theme/theme-test-function-template-override.html.twig

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+{# Output for Theme API test #}
+Success: Template overrides theme function.

core/modules/system/tests/themes/test_theme/theme_test.template_test.html.twig

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+{# Output for Theme API test #}
+Success: Template overridden.

core/modules/system/tests/themes/test_theme_having_veery_long_name_which_is_too_long/test_theme_having_veery_long_name_which_is_too_long.info.yml

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+type: theme
+core: 8.x
+name: 'Test theme with a too long name'
+version: VERSION

core/modules/system/tests/themes/test_theme_phptemplate/node--1.tpl.php

@@ -0,0 +1,4 @@
+<?php
+  // node--1.tpl.php - Dummy file for finding the template
+?>
+Node Content Dummy

core/modules/system/tests/themes/test_theme_phptemplate/test_theme_phptemplate.info.yml

@@ -0,0 +1,6 @@
+name: 'Test theme PHPTemplate'
+type: theme
+description: 'Theme for testing the theme system with the PHPTemplate engine'
+version: VERSION
+core: 8.x
+engine: phptemplate

core/modules/system/tests/themes/test_theme_phptemplate/test_theme_phptemplate.theme

@@ -0,0 +1 @@
+<?php

core/modules/system/tests/themes/test_theme_phptemplate/theme_test.template_test.tpl.php

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+<!-- Output for Theme API test -->
+<?php print 'Success: Template overridden with PHPTemplate theme.'; ?>

core/modules/system/tests/themes/test_theme_twig_registry_loader/templates/twig-registry-loader-test-extend.html.twig

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+This line is from test_theme_twig_registry_loader/templates/twig-registry-loader-test-extend.html.twig
+
+{% block content %}
+This text is in a block.
+{% endblock %}

core/modules/system/tests/themes/test_theme_twig_registry_loader/templates/twig-registry-loader-test-include.html.twig

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+This line is from test_theme_twig_registry_loader/templates/twig-registry-loader-test-include.html.twig

core/modules/system/tests/themes/test_theme_twig_registry_loader/test_theme_twig_registry_loader.info.yml

@@ -0,0 +1,5 @@
+name: 'Twig registry loader test'
+type: theme
+description: 'Support module for Twig registry loader testing.'
+version: VERSION
+core: 8.x

core/modules/system/tests/themes/test_theme_twig_registry_loader_subtheme/test_theme_twig_registry_loader_subtheme.info.yml

@@ -0,0 +1,6 @@
+name: 'Twig registry loader test subtheme'
+type: theme
+base theme: test_theme_twig_registry_loader_theme
+description: 'Support module for Twig registry loader testing.'
+version: VERSION
+core: 8.x

core/modules/system/tests/themes/test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-extend.html.twig

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+This line is from test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-extend.html.twig
+
+{% block content %}
+This text is in a block.
+{% endblock %}

core/modules/system/tests/themes/test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-include.html.twig

@@ -0,0 +1 @@
+This line is from test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-include.html.twig

core/modules/system/tests/themes/test_theme_twig_registry_loader_theme/test_theme_twig_registry_loader_theme.info.yml

@@ -0,0 +1,6 @@
+name: 'Twig registry loader test theme'
+type: theme
+base theme: test_theme_twig_registry_loader
+description: 'Support module for Twig registry loader testing.'
+version: VERSION
+core: 8.x