From bf3ba52fa09436b145727052db0607c3ae4275c7 Mon Sep 17 00:00:00 2001
From: Nathaniel Catchpole <catch@35733.no-reply.drupal.org>
Date: Tue, 13 May 2014 17:55:52 +0100
Subject: [PATCH] Issue #2209337 by tstoeckler: Remove hidden property from
 test extensions.

---
 .../action/tests/action_bulk_test/action_bulk_test.info.yml      | 1 -
 .../tests/modules/aggregator_test/aggregator_test.info.yml       | 1 -
 .../modules/aggregator_test_views/aggregator_test_views.info.yml | 1 -
 .../tests/modules/custom_block_test/custom_block_test.info.yml   | 1 -
 core/modules/block/tests/modules/block_test/block_test.info.yml  | 1 -
 .../block_test_specialchars_theme.info.yml                       | 1 -
 .../block_test/themes/block_test_theme/block_test_theme.info.yml | 1 -
 .../tests/modules/block_test_views/block_test_views.info.yml     | 1 -
 .../themes/breakpoint_test_theme/breakpoint_test_theme.info.yml  | 1 -
 core/modules/ckeditor/tests/modules/ckeditor_test.info.yml       | 1 -
 core/modules/color/tests/modules/color_test/color_test.info.yml  | 1 -
 .../color_test/themes/color_test_theme/color_test_theme.info.yml | 1 -
 .../comment/tests/modules/comment_test/comment_test.info.yml     | 1 -
 .../tests/modules/comment_test_views/comment_test_views.info.yml | 1 -
 .../config/tests/config_events_test/config_events_test.info.yml  | 1 -
 .../config/tests/config_import_test/config_import_test.info.yml  | 1 -
 .../config_integration_test/config_integration_test.info.yml     | 1 -
 .../config_other_module_config.info.yml                          | 1 -
 .../config/tests/config_override/config_override.info.yml        | 1 -
 .../config/tests/config_override_test/config_override_test.yml   | 1 -
 core/modules/config/tests/config_test/config_test.info.yml       | 1 -
 core/modules/config/tests/config_test_invalid_name/install       | 1 -
 .../config_translation_test/config_translation_test.info.yml     | 1 -
 .../config_translation_test_theme.info.yml                       | 1 -
 .../tests/modules/contact_test_views/contact_test_views.info.yml | 1 -
 .../content_translation_test_views.info.yml                      | 1 -
 .../tests/modules/dblog_test_views/dblog_test_views.info.yml     | 1 -
 core/modules/editor/tests/modules/editor_test.info.yml           | 1 -
 .../modules/entity_reference_test/entity_reference_test.info.yml | 1 -
 core/modules/field/tests/modules/field_test/field_test.info.yml  | 1 -
 .../tests/modules/field_test_config/field_test_config.info.yml   | 1 -
 .../tests/modules/field_test_views/field_test_views.info.yml     | 1 -
 .../field_ui/tests/modules/field_ui_test/field_ui_test.info.yml  | 1 -
 .../file/tests/file_module_test/file_module_test.info.yml        | 1 -
 core/modules/file/tests/file_test/file_test.info.yml             | 1 -
 .../file/tests/modules/file_test_views/file_test_views.info.yml  | 1 -
 core/modules/filter/tests/filter_test/filter_test.info.yml       | 1 -
 .../tests/modules/forum_test_views/forum_test_views.info.yml     | 1 -
 .../tests/modules/image_module_test/image_module_test.info.yml   | 1 -
 .../tests/language_elements_test/language_elements_test.info.yml | 1 -
 core/modules/language/tests/language_test/language_test.info.yml | 1 -
 .../tests/modules/node_access_test/node_access_test.info.yml     | 1 -
 .../node_access_test_language/node_access_test_language.info.yml | 1 -
 core/modules/node/tests/modules/node_test/node_test.info.yml     | 1 -
 .../tests/modules/node_test_config/node_test_config.info.yml     | 1 -
 .../modules/node_test_exception/node_test_exception.info.yml     | 1 -
 .../node/tests/modules/node_test_views/node_test_views.info.yml  | 1 -
 core/modules/options/tests/options_test.info.yml                 | 1 -
 core/modules/quickedit/tests/modules/quickedit_test.info.yml     | 1 -
 .../rdf_conflicting_namespaces.info.yml                          | 1 -
 .../rdf/tests/rdf_test_namespaces/rdf_test_namespaces.info.yml   | 1 -
 .../rest/tests/modules/rest_test_views/rest_test_views.info.yml  | 1 -
 .../modules/search_embedded_form/search_embedded_form.info.yml   | 1 -
 .../tests/modules/search_extra_type/search_extra_type.info.yml   | 1 -
 .../modules/search_langcode_test/search_langcode_test.info.yml   | 1 -
 .../tests/modules/search_query_alter/search_query_alter.info.yml | 1 -
 .../tests/serialization_test/serialization_test.info.yml         | 1 -
 .../simpletest/tests/modules/phpunit_test/phpunit_test.info.yml  | 1 -
 .../modules/statistics_test_views/statistics_test_views.info.yml | 1 -
 .../system/tests/modules/action_test/action_test.info.yml        | 1 -
 .../tests/modules/ajax_forms_test/ajax_forms_test.info.yml       | 1 -
 core/modules/system/tests/modules/ajax_test/ajax_test.info.yml   | 1 -
 core/modules/system/tests/modules/batch_test/batch_test.info.yml | 1 -
 core/modules/system/tests/modules/cache_test/cache_test.info.yml | 1 -
 .../system/tests/modules/common_test/common_test.info.yml        | 1 -
 .../common_test_cron_helper/common_test_cron_helper.info.yml     | 1 -
 .../system/tests/modules/condition_test/condition_test.info.yml  | 1 -
 .../tests/modules/cron_queue_test/cron_queue_test.info.yml       | 1 -
 .../system/tests/modules/database_test/database_test.info.yml    | 1 -
 .../drupal_system_listing_compatible_test.info.yml               | 1 -
 .../drupal_system_listing_incompatible_test.info.yml             | 1 -
 .../tests/modules/entity_cache_test/entity_cache_test.info.yml   | 1 -
 .../entity_cache_test_dependency.info.yml                        | 1 -
 .../modules/entity_crud_hook_test/entity_crud_hook_test.info.yml | 1 -
 .../system/tests/modules/entity_test/entity_test.info.yml        | 1 -
 core/modules/system/tests/modules/error_test/error_test.info.yml | 1 -
 core/modules/system/tests/modules/form_test/form_test.info.yml   | 1 -
 core/modules/system/tests/modules/image_test/image_test.info.yml | 1 -
 ...odule_name_over_the_maximum_allowed_character_length.info.yml | 1 -
 core/modules/system/tests/modules/menu_test/menu_test.info.yml   | 1 -
 .../modules/module_autoload_test/module_autoload_test.info.yml   | 1 -
 .../system/tests/modules/module_test/module_test.info.yml        | 1 -
 .../modules/paramconverter_test/paramconverter_test.info.yml     | 1 -
 core/modules/system/tests/modules/path_test/path_test.info.yml   | 1 -
 .../system/tests/modules/plugin_test/plugin_test.info.yml        | 1 -
 .../tests/modules/requirements1_test/requirements1_test.info.yml | 1 -
 .../tests/modules/requirements2_test/requirements2_test.info.yml | 1 -
 .../tests/modules/router_test_directory/router_test.info.yml     | 1 -
 .../modules/service_provider_test/service_provider_test.info.yml | 1 -
 .../system/tests/modules/session_test/session_test.info.yml      | 1 -
 .../system_dependencies_test/system_dependencies_test.info.yml   | 1 -
 .../system_incompatible_core_version_dependencies_test.info.yml  | 1 -
 .../system_incompatible_core_version_test.info.yml               | 1 -
 ...system_incompatible_module_version_dependencies_test.info.yml | 1 -
 .../system_incompatible_module_version_test.info.yml             | 1 -
 .../system_mail_failure_test/system_mail_failure_test.info.yml   | 1 -
 .../tests/modules/system_module_test/system_module_test.info.yml | 1 -
 .../system/tests/modules/system_test/system_test.info.yml        | 1 -
 .../system/tests/modules/test_page_test/test_page_test.info.yml  | 1 -
 .../tests/modules/theme_page_test/theme_page_test.info.yml       | 1 -
 .../theme_suggestions_test/theme_suggestions_test.info.yml       | 1 -
 core/modules/system/tests/modules/theme_test/theme_test.info.yml | 1 -
 .../tests/modules/transliterate_test/transliterate_test.info.yml | 1 -
 .../modules/twig_extension_test/twig_extension_test.info.yml     | 1 -
 .../modules/twig_namespace_a/twig_namespace_a.info.yml           | 1 -
 .../modules/twig_namespace_b/twig_namespace_b.info.yml           | 1 -
 .../tests/modules/twig_theme_test/twig_theme_test.info.yml       | 1 -
 .../tests/modules/update_script_test/update_script_test.info.yml | 1 -
 .../system/tests/modules/update_test_0/update_test_0.info.yml    | 1 -
 .../system/tests/modules/update_test_1/update_test_1.info.yml    | 1 -
 .../system/tests/modules/update_test_2/update_test_2.info.yml    | 1 -
 .../system/tests/modules/update_test_3/update_test_3.info.yml    | 1 -
 .../update_test_invalid_hook/update_test_invalid_hook.info.yml   | 1 -
 .../modules/update_test_with_7x/update_test_with_7x.info.yml     | 1 -
 .../system/tests/modules/url_alter_test/url_alter_test.info.yml  | 1 -
 .../system/tests/themes/test_basetheme/test_basetheme.info.yml   | 1 -
 .../test_invalid_basetheme/test_invalid_basetheme.info.yml       | 1 -
 .../themes/test_invalid_engine/test_invalid_engine.info.yml      | 1 -
 .../system/tests/themes/test_subtheme/test_subtheme.info.yml     | 1 -
 core/modules/system/tests/themes/test_theme/test_theme.info.yml  | 1 -
 .../test_theme_having_veery_long_name_which_is_too_long.info.yml | 1 -
 .../test_theme_phptemplate/test_theme_phptemplate.info.yml       | 1 -
 .../modules/taxonomy_test_views/taxonomy_test_views.info.yml     | 1 -
 .../toolbar/tests/modules/toolbar_test/toolbar_test.info.yml     | 1 -
 core/modules/tour/tests/tour_test/tour_test.info.yml             | 1 -
 .../tests/modules/tracker_test_views/tracker_test_views.info.yml | 1 -
 .../update/tests/aaa_update_test/aaa_update_test.info.yml        | 1 -
 .../tests/modules/aaa_update_test/aaa_update_test.info.yml       | 1 -
 .../tests/modules/bbb_update_test/bbb_update_test.info.yml       | 1 -
 .../tests/modules/ccc_update_test/ccc_update_test.info.yml       | 1 -
 .../update/tests/modules/update_test/update_test.info.yml        | 1 -
 .../themes/update_test_basetheme/update_test_basetheme.info.yml  | 1 -
 .../themes/update_test_subtheme/update_test_subtheme.info.yml    | 1 -
 .../user_custom_phpass_params_test.info.yml                      | 1 -
 .../user/tests/modules/user_form_test/user_form_test.info.yml    | 1 -
 .../user/tests/modules/user_test_views/user_test_views.info.yml  | 1 -
 .../tests/modules/views_test_config/views_test_config.info.yml   | 1 -
 .../views/tests/modules/views_test_data/views_test_data.info.yml | 1 -
 .../xmlrpc/tests/modules/xmlrpc_test/xmlrpc_test.info.yml        | 1 -
 .../drupal_system_listing_compatible_test.info.yml               | 1 -
 .../drupal_system_listing_incompatible_test.info.yml             | 1 -
 141 files changed, 141 deletions(-)

diff --git a/core/modules/action/tests/action_bulk_test/action_bulk_test.info.yml b/core/modules/action/tests/action_bulk_test/action_bulk_test.info.yml
index f9e78fa2e5b6..296a33a4019b 100644
--- a/core/modules/action/tests/action_bulk_test/action_bulk_test.info.yml
+++ b/core/modules/action/tests/action_bulk_test/action_bulk_test.info.yml
@@ -4,7 +4,6 @@ description: 'Support module for action bulk form testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - action
   - views
diff --git a/core/modules/aggregator/tests/modules/aggregator_test/aggregator_test.info.yml b/core/modules/aggregator/tests/modules/aggregator_test/aggregator_test.info.yml
index 835d3ed1a47e..3d3d0e932aa5 100644
--- a/core/modules/aggregator/tests/modules/aggregator_test/aggregator_test.info.yml
+++ b/core/modules/aggregator/tests/modules/aggregator_test/aggregator_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for aggregator related testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/aggregator/tests/modules/aggregator_test_views/aggregator_test_views.info.yml b/core/modules/aggregator/tests/modules/aggregator_test_views/aggregator_test_views.info.yml
index 1d9998713e40..58da126d6283 100644
--- a/core/modules/aggregator/tests/modules/aggregator_test_views/aggregator_test_views.info.yml
+++ b/core/modules/aggregator/tests/modules/aggregator_test_views/aggregator_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - aggregator
   - views
-hidden: true
diff --git a/core/modules/block/custom_block/tests/modules/custom_block_test/custom_block_test.info.yml b/core/modules/block/custom_block/tests/modules/custom_block_test/custom_block_test.info.yml
index d0cf40c7545b..747efa4dd99d 100644
--- a/core/modules/block/custom_block/tests/modules/custom_block_test/custom_block_test.info.yml
+++ b/core/modules/block/custom_block/tests/modules/custom_block_test/custom_block_test.info.yml
@@ -4,4 +4,3 @@ description: "Support module for custom block related testing."
 package: Testing
 version: VERSION
 core: 8.x
-hidden: TRUE
diff --git a/core/modules/block/tests/modules/block_test/block_test.info.yml b/core/modules/block/tests/modules/block_test/block_test.info.yml
index d6e41375659a..9a8895f9bbff 100644
--- a/core/modules/block/tests/modules/block_test/block_test.info.yml
+++ b/core/modules/block/tests/modules/block_test/block_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides test blocks.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/block/tests/modules/block_test/themes/block_test_specialchars_theme/block_test_specialchars_theme.info.yml b/core/modules/block/tests/modules/block_test/themes/block_test_specialchars_theme/block_test_specialchars_theme.info.yml
index 5b4689eddbcd..607451ffbc3f 100644
--- a/core/modules/block/tests/modules/block_test/themes/block_test_specialchars_theme/block_test_specialchars_theme.info.yml
+++ b/core/modules/block/tests/modules/block_test/themes/block_test_specialchars_theme/block_test_specialchars_theme.info.yml
@@ -2,7 +2,6 @@ name: '<"Cat" & ''Mouse''>'
 type: theme
 description: 'Theme for testing special characters in block admin.'
 core: 8.x
-hidden: true
 regions:
   content: Content
   help: Help
diff --git a/core/modules/block/tests/modules/block_test/themes/block_test_theme/block_test_theme.info.yml b/core/modules/block/tests/modules/block_test/themes/block_test_theme/block_test_theme.info.yml
index 63fd5b0ce828..96c76505e1c5 100644
--- a/core/modules/block/tests/modules/block_test/themes/block_test_theme/block_test_theme.info.yml
+++ b/core/modules/block/tests/modules/block_test/themes/block_test_theme/block_test_theme.info.yml
@@ -3,7 +3,6 @@ type: theme
 description: 'Theme for testing the block system'
 version: VERSION
 core: 8.x
-hidden: true
 regions:
   sidebar_first: 'Left sidebar'
   sidebar_second: 'Right sidebar'
diff --git a/core/modules/block/tests/modules/block_test_views/block_test_views.info.yml b/core/modules/block/tests/modules/block_test_views/block_test_views.info.yml
index aad655e09b29..f7a32c08612c 100644
--- a/core/modules/block/tests/modules/block_test_views/block_test_views.info.yml
+++ b/core/modules/block/tests/modules/block_test_views/block_test_views.info.yml
@@ -3,7 +3,6 @@ type: module
 description: 'Provides a view and block to test block displays in views.'
 package: Core
 version: VERSION
-hidden: TRUE
 core: 8.x
 dependencies:
   - block
diff --git a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/breakpoint_test_theme.info.yml b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/breakpoint_test_theme.info.yml
index 0fa90963016f..779f99764c1d 100644
--- a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/breakpoint_test_theme.info.yml
+++ b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/breakpoint_test_theme.info.yml
@@ -4,4 +4,3 @@ description: 'Test theme for breakpoint.'
 version: VERSION
 core: 8.x
 'base theme': bartik
-hidden: true
diff --git a/core/modules/ckeditor/tests/modules/ckeditor_test.info.yml b/core/modules/ckeditor/tests/modules/ckeditor_test.info.yml
index 8aad460c9348..d7d5450ee370 100644
--- a/core/modules/ckeditor/tests/modules/ckeditor_test.info.yml
+++ b/core/modules/ckeditor/tests/modules/ckeditor_test.info.yml
@@ -4,4 +4,3 @@ description: Support module for the CKEditor module tests.
 core: 8.x
 package: Testing
 version: VERSION
-hidden: TRUE
diff --git a/core/modules/color/tests/modules/color_test/color_test.info.yml b/core/modules/color/tests/modules/color_test/color_test.info.yml
index 7b31befb69c6..05d954ff6be7 100644
--- a/core/modules/color/tests/modules/color_test/color_test.info.yml
+++ b/core/modules/color/tests/modules/color_test/color_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides test helpers for color module.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/color/tests/modules/color_test/themes/color_test_theme/color_test_theme.info.yml b/core/modules/color/tests/modules/color_test/themes/color_test_theme/color_test_theme.info.yml
index 3ebd18ee611c..01f8ffeeba2a 100644
--- a/core/modules/color/tests/modules/color_test/themes/color_test_theme/color_test_theme.info.yml
+++ b/core/modules/color/tests/modules/color_test/themes/color_test_theme/color_test_theme.info.yml
@@ -3,4 +3,3 @@ type: theme
 description: 'Theme for testing the color module'
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/comment/tests/modules/comment_test/comment_test.info.yml b/core/modules/comment/tests/modules/comment_test/comment_test.info.yml
index bde96fd33e4c..712037fe2cb3 100644
--- a/core/modules/comment/tests/modules/comment_test/comment_test.info.yml
+++ b/core/modules/comment/tests/modules/comment_test/comment_test.info.yml
@@ -4,6 +4,5 @@ description: 'Support module for Comment module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - comment
diff --git a/core/modules/comment/tests/modules/comment_test_views/comment_test_views.info.yml b/core/modules/comment/tests/modules/comment_test_views/comment_test_views.info.yml
index c9703dc6bbb7..dfce66dca032 100644
--- a/core/modules/comment/tests/modules/comment_test_views/comment_test_views.info.yml
+++ b/core/modules/comment/tests/modules/comment_test_views/comment_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - comment
   - views
-hidden: true
diff --git a/core/modules/config/tests/config_events_test/config_events_test.info.yml b/core/modules/config/tests/config_events_test/config_events_test.info.yml
index 6cb7504a8898..95c6799f0077 100644
--- a/core/modules/config/tests/config_events_test/config_events_test.info.yml
+++ b/core/modules/config/tests/config_events_test/config_events_test.info.yml
@@ -3,4 +3,3 @@ type: module
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/config/tests/config_import_test/config_import_test.info.yml b/core/modules/config/tests/config_import_test/config_import_test.info.yml
index 87cdd025cc53..01d2d1db3fa0 100644
--- a/core/modules/config/tests/config_import_test/config_import_test.info.yml
+++ b/core/modules/config/tests/config_import_test/config_import_test.info.yml
@@ -3,4 +3,3 @@ type: module
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/config/tests/config_integration_test/config_integration_test.info.yml b/core/modules/config/tests/config_integration_test/config_integration_test.info.yml
index dabbd7f2dbdb..2c4caa1ccf1f 100644
--- a/core/modules/config/tests/config_integration_test/config_integration_test.info.yml
+++ b/core/modules/config/tests/config_integration_test/config_integration_test.info.yml
@@ -3,6 +3,5 @@ type: module
 package: 'Testing'
 version: VERSION
 core: 8.x
-hidden: TRUE
 dependencies:
   - config_test
diff --git a/core/modules/config/tests/config_other_module_config/config_other_module_config.info.yml b/core/modules/config/tests/config_other_module_config/config_other_module_config.info.yml
index 0f78017ea2dc..0c332c24d097 100644
--- a/core/modules/config/tests/config_other_module_config/config_other_module_config.info.yml
+++ b/core/modules/config/tests/config_other_module_config/config_other_module_config.info.yml
@@ -3,4 +3,3 @@ type: module
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/config/tests/config_override/config_override.info.yml b/core/modules/config/tests/config_override/config_override.info.yml
index 1ccb50bbb9a5..f1f1109cc29e 100644
--- a/core/modules/config/tests/config_override/config_override.info.yml
+++ b/core/modules/config/tests/config_override/config_override.info.yml
@@ -3,4 +3,3 @@ type: module
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/config/tests/config_override_test/config_override_test.yml b/core/modules/config/tests/config_override_test/config_override_test.yml
index 1ccb50bbb9a5..f1f1109cc29e 100644
--- a/core/modules/config/tests/config_override_test/config_override_test.yml
+++ b/core/modules/config/tests/config_override_test/config_override_test.yml
@@ -3,4 +3,3 @@ type: module
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/config/tests/config_test/config_test.info.yml b/core/modules/config/tests/config_test/config_test.info.yml
index 0ce2c40b5c59..a4d7b0c48f50 100644
--- a/core/modules/config/tests/config_test/config_test.info.yml
+++ b/core/modules/config/tests/config_test/config_test.info.yml
@@ -3,4 +3,3 @@ type: module
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/config/tests/config_test_invalid_name/install b/core/modules/config/tests/config_test_invalid_name/install
index 8bf18bdcb95c..91ed0ae748d1 100644
--- a/core/modules/config/tests/config_test_invalid_name/install
+++ b/core/modules/config/tests/config_test_invalid_name/install
@@ -3,4 +3,3 @@ type: module
 package: Core
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/config_translation/tests/modules/config_translation_test/config_translation_test.info.yml b/core/modules/config_translation/tests/modules/config_translation_test/config_translation_test.info.yml
index 47e5f1fdc202..d9308c37bcc9 100644
--- a/core/modules/config_translation/tests/modules/config_translation_test/config_translation_test.info.yml
+++ b/core/modules/config_translation/tests/modules/config_translation_test/config_translation_test.info.yml
@@ -4,6 +4,5 @@ type: module
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - config_test
diff --git a/core/modules/config_translation/tests/themes/config_translation_test_theme/config_translation_test_theme.info.yml b/core/modules/config_translation/tests/themes/config_translation_test_theme/config_translation_test_theme.info.yml
index 3b4d6559b56a..f46d8a058fa5 100644
--- a/core/modules/config_translation/tests/themes/config_translation_test_theme/config_translation_test_theme.info.yml
+++ b/core/modules/config_translation/tests/themes/config_translation_test_theme/config_translation_test_theme.info.yml
@@ -3,4 +3,3 @@ type: theme
 description: 'Theme for testing the configuration translation mapper system'
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/contact/tests/modules/contact_test_views/contact_test_views.info.yml b/core/modules/contact/tests/modules/contact_test_views/contact_test_views.info.yml
index eb3b5e35012c..b30ad4118bb0 100644
--- a/core/modules/contact/tests/modules/contact_test_views/contact_test_views.info.yml
+++ b/core/modules/contact/tests/modules/contact_test_views/contact_test_views.info.yml
@@ -8,4 +8,3 @@ dependencies:
   - contact
   - views
   - user
-hidden: true
diff --git a/core/modules/content_translation/tests/modules/content_translation_test_views/content_translation_test_views.info.yml b/core/modules/content_translation/tests/modules/content_translation_test_views/content_translation_test_views.info.yml
index 9e261db34e76..0e6574e01ead 100644
--- a/core/modules/content_translation/tests/modules/content_translation_test_views/content_translation_test_views.info.yml
+++ b/core/modules/content_translation/tests/modules/content_translation_test_views/content_translation_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - content_translation
   - views
-hidden: true
diff --git a/core/modules/dblog/tests/modules/dblog_test_views/dblog_test_views.info.yml b/core/modules/dblog/tests/modules/dblog_test_views/dblog_test_views.info.yml
index 08e6aa38aad7..e0209738a6b6 100644
--- a/core/modules/dblog/tests/modules/dblog_test_views/dblog_test_views.info.yml
+++ b/core/modules/dblog/tests/modules/dblog_test_views/dblog_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - dblog
   - views
-hidden: TRUE
diff --git a/core/modules/editor/tests/modules/editor_test.info.yml b/core/modules/editor/tests/modules/editor_test.info.yml
index 102ee02e388b..40b6ff07133e 100644
--- a/core/modules/editor/tests/modules/editor_test.info.yml
+++ b/core/modules/editor/tests/modules/editor_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the Text Editor module tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/entity_reference/tests/modules/entity_reference_test/entity_reference_test.info.yml b/core/modules/entity_reference/tests/modules/entity_reference_test/entity_reference_test.info.yml
index a2460d188713..67a5f4876fa2 100644
--- a/core/modules/entity_reference/tests/modules/entity_reference_test/entity_reference_test.info.yml
+++ b/core/modules/entity_reference/tests/modules/entity_reference_test/entity_reference_test.info.yml
@@ -4,6 +4,5 @@ description: "Support module for the Entity Reference tests."
 core: 8.x
 package: Testing
 version: VERSION
-hidden: TRUE
 dependencies:
   - entity_reference
diff --git a/core/modules/field/tests/modules/field_test/field_test.info.yml b/core/modules/field/tests/modules/field_test/field_test.info.yml
index b05dab530e18..48bb2ae80b81 100644
--- a/core/modules/field/tests/modules/field_test/field_test.info.yml
+++ b/core/modules/field/tests/modules/field_test/field_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the Field API tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/field/tests/modules/field_test_config/field_test_config.info.yml b/core/modules/field/tests/modules/field_test_config/field_test_config.info.yml
index 3c8889a99c72..e3cb0e892af7 100644
--- a/core/modules/field/tests/modules/field_test_config/field_test_config.info.yml
+++ b/core/modules/field/tests/modules/field_test_config/field_test_config.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the Field API configuration tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: TRUE
diff --git a/core/modules/field/tests/modules/field_test_views/field_test_views.info.yml b/core/modules/field/tests/modules/field_test_views/field_test_views.info.yml
index 2f227909fd5b..18287b613bcb 100644
--- a/core/modules/field/tests/modules/field_test_views/field_test_views.info.yml
+++ b/core/modules/field/tests/modules/field_test_views/field_test_views.info.yml
@@ -6,4 +6,3 @@ version: VERSION
 core: 8.x
 dependencies:
   - views
-hidden: true
diff --git a/core/modules/field_ui/tests/modules/field_ui_test/field_ui_test.info.yml b/core/modules/field_ui/tests/modules/field_ui_test/field_ui_test.info.yml
index ff73701836e8..b57d967937ce 100644
--- a/core/modules/field_ui/tests/modules/field_ui_test/field_ui_test.info.yml
+++ b/core/modules/field_ui/tests/modules/field_ui_test/field_ui_test.info.yml
@@ -4,7 +4,6 @@ description: "Support module for Field UI testing."
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 
 dependencies:
   - field_ui
diff --git a/core/modules/file/tests/file_module_test/file_module_test.info.yml b/core/modules/file/tests/file_module_test/file_module_test.info.yml
index 2f7e65433ab2..097b0a5c429c 100644
--- a/core/modules/file/tests/file_module_test/file_module_test.info.yml
+++ b/core/modules/file/tests/file_module_test/file_module_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides hooks for testing File module functionality.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/file/tests/file_test/file_test.info.yml b/core/modules/file/tests/file_test/file_test.info.yml
index 26cb51ec7197..d5ebfdfd35c3 100644
--- a/core/modules/file/tests/file_test/file_test.info.yml
+++ b/core/modules/file/tests/file_test/file_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for file handling tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/file/tests/modules/file_test_views/file_test_views.info.yml b/core/modules/file/tests/modules/file_test_views/file_test_views.info.yml
index ff572d633b96..41726c7ee467 100644
--- a/core/modules/file/tests/modules/file_test_views/file_test_views.info.yml
+++ b/core/modules/file/tests/modules/file_test_views/file_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - file
   - views
-hidden: true
diff --git a/core/modules/filter/tests/filter_test/filter_test.info.yml b/core/modules/filter/tests/filter_test/filter_test.info.yml
index 4ccefb2e25ce..dcefe8eeb3b5 100644
--- a/core/modules/filter/tests/filter_test/filter_test.info.yml
+++ b/core/modules/filter/tests/filter_test/filter_test.info.yml
@@ -4,4 +4,3 @@ description: 'Tests filter hooks and functions.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/forum/tests/modules/forum_test_views/forum_test_views.info.yml b/core/modules/forum/tests/modules/forum_test_views/forum_test_views.info.yml
index 3b498b22c6fe..f31f030dc0b6 100644
--- a/core/modules/forum/tests/modules/forum_test_views/forum_test_views.info.yml
+++ b/core/modules/forum/tests/modules/forum_test_views/forum_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - forum
   - views
-hidden: true
diff --git a/core/modules/image/tests/modules/image_module_test/image_module_test.info.yml b/core/modules/image/tests/modules/image_module_test/image_module_test.info.yml
index d3671f8ab7e5..9abaf4730cfb 100644
--- a/core/modules/image/tests/modules/image_module_test/image_module_test.info.yml
+++ b/core/modules/image/tests/modules/image_module_test/image_module_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides hook implementations for testing Image module functionali
 package: Core
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/language/tests/language_elements_test/language_elements_test.info.yml b/core/modules/language/tests/language_elements_test/language_elements_test.info.yml
index 254c5f629f16..d8a3da1f562b 100644
--- a/core/modules/language/tests/language_elements_test/language_elements_test.info.yml
+++ b/core/modules/language/tests/language_elements_test/language_elements_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the language form elements tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/language/tests/language_test/language_test.info.yml b/core/modules/language/tests/language_test/language_test.info.yml
index 8fc0512e8a40..03051cd8c16d 100644
--- a/core/modules/language/tests/language_test/language_test.info.yml
+++ b/core/modules/language/tests/language_test/language_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the language layer tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/node/tests/modules/node_access_test/node_access_test.info.yml b/core/modules/node/tests/modules/node_access_test/node_access_test.info.yml
index e2c70c6f1a3a..f63cdd659a3c 100644
--- a/core/modules/node/tests/modules/node_access_test/node_access_test.info.yml
+++ b/core/modules/node/tests/modules/node_access_test/node_access_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for node permission testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/node/tests/modules/node_access_test_language/node_access_test_language.info.yml b/core/modules/node/tests/modules/node_access_test_language/node_access_test_language.info.yml
index 3e7ac8825ad2..64055ac1e970 100644
--- a/core/modules/node/tests/modules/node_access_test_language/node_access_test_language.info.yml
+++ b/core/modules/node/tests/modules/node_access_test_language/node_access_test_language.info.yml
@@ -6,4 +6,3 @@ version: VERSION
 core: 8.x
 dependencies:
 - options
-hidden: true
diff --git a/core/modules/node/tests/modules/node_test/node_test.info.yml b/core/modules/node/tests/modules/node_test/node_test.info.yml
index 9daea150d823..952456fe25bc 100644
--- a/core/modules/node/tests/modules/node_test/node_test.info.yml
+++ b/core/modules/node/tests/modules/node_test/node_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for node related testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/node/tests/modules/node_test_config/node_test_config.info.yml b/core/modules/node/tests/modules/node_test_config/node_test_config.info.yml
index 948b4a549610..c7e7665704a8 100644
--- a/core/modules/node/tests/modules/node_test_config/node_test_config.info.yml
+++ b/core/modules/node/tests/modules/node_test_config/node_test_config.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for node configuration tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: TRUE
diff --git a/core/modules/node/tests/modules/node_test_exception/node_test_exception.info.yml b/core/modules/node/tests/modules/node_test_exception/node_test_exception.info.yml
index a9ccbfe5e941..fac3fe7975bd 100644
--- a/core/modules/node/tests/modules/node_test_exception/node_test_exception.info.yml
+++ b/core/modules/node/tests/modules/node_test_exception/node_test_exception.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for node related exception testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/node/tests/modules/node_test_views/node_test_views.info.yml b/core/modules/node/tests/modules/node_test_views/node_test_views.info.yml
index 1e0aa160105c..194168fa49a2 100644
--- a/core/modules/node/tests/modules/node_test_views/node_test_views.info.yml
+++ b/core/modules/node/tests/modules/node_test_views/node_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - node
   - views
-hidden: true
diff --git a/core/modules/options/tests/options_test.info.yml b/core/modules/options/tests/options_test.info.yml
index 68269523025d..add43a422cb3 100644
--- a/core/modules/options/tests/options_test.info.yml
+++ b/core/modules/options/tests/options_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the Options module tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/quickedit/tests/modules/quickedit_test.info.yml b/core/modules/quickedit/tests/modules/quickedit_test.info.yml
index 91c40bd115f3..fe21dc5b9b1e 100644
--- a/core/modules/quickedit/tests/modules/quickedit_test.info.yml
+++ b/core/modules/quickedit/tests/modules/quickedit_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the Quick Edit module tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/rdf/tests/rdf_conflicting_namespaces/rdf_conflicting_namespaces.info.yml b/core/modules/rdf/tests/rdf_conflicting_namespaces/rdf_conflicting_namespaces.info.yml
index 33a5cd9e2514..65d06dbf0c3a 100644
--- a/core/modules/rdf/tests/rdf_conflicting_namespaces/rdf_conflicting_namespaces.info.yml
+++ b/core/modules/rdf/tests/rdf_conflicting_namespaces/rdf_conflicting_namespaces.info.yml
@@ -4,6 +4,5 @@ description: 'Test conflicting namespace declaration.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - rdf
diff --git a/core/modules/rdf/tests/rdf_test_namespaces/rdf_test_namespaces.info.yml b/core/modules/rdf/tests/rdf_test_namespaces/rdf_test_namespaces.info.yml
index 7ace9646ae96..84cd97448086 100644
--- a/core/modules/rdf/tests/rdf_test_namespaces/rdf_test_namespaces.info.yml
+++ b/core/modules/rdf/tests/rdf_test_namespaces/rdf_test_namespaces.info.yml
@@ -4,6 +4,5 @@ description: 'Test namespace declaration.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - rdf
diff --git a/core/modules/rest/tests/modules/rest_test_views/rest_test_views.info.yml b/core/modules/rest/tests/modules/rest_test_views/rest_test_views.info.yml
index debc5e2ab832..662ad1bb91ed 100644
--- a/core/modules/rest/tests/modules/rest_test_views/rest_test_views.info.yml
+++ b/core/modules/rest/tests/modules/rest_test_views/rest_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - rest
   - views
-hidden: true
diff --git a/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.info.yml b/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.info.yml
index 9c17197f2ed3..0df41aa09452 100644
--- a/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.info.yml
+++ b/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Search module testing of embedded forms.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/search/tests/modules/search_extra_type/search_extra_type.info.yml b/core/modules/search/tests/modules/search_extra_type/search_extra_type.info.yml
index 21a99cf85675..caea321b30a0 100644
--- a/core/modules/search/tests/modules/search_extra_type/search_extra_type.info.yml
+++ b/core/modules/search/tests/modules/search_extra_type/search_extra_type.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Search module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/search/tests/modules/search_langcode_test/search_langcode_test.info.yml b/core/modules/search/tests/modules/search_langcode_test/search_langcode_test.info.yml
index 53d0a4b4da36..da34c5fa1bd6 100644
--- a/core/modules/search/tests/modules/search_langcode_test/search_langcode_test.info.yml
+++ b/core/modules/search/tests/modules/search_langcode_test/search_langcode_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for search module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/search/tests/modules/search_query_alter/search_query_alter.info.yml b/core/modules/search/tests/modules/search_query_alter/search_query_alter.info.yml
index 870ea25aa958..8c6a3d824cde 100644
--- a/core/modules/search/tests/modules/search_query_alter/search_query_alter.info.yml
+++ b/core/modules/search/tests/modules/search_query_alter/search_query_alter.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Search module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/serialization/tests/serialization_test/serialization_test.info.yml b/core/modules/serialization/tests/serialization_test/serialization_test.info.yml
index be6441217004..d6c01304ce82 100644
--- a/core/modules/serialization/tests/serialization_test/serialization_test.info.yml
+++ b/core/modules/serialization/tests/serialization_test/serialization_test.info.yml
@@ -4,4 +4,3 @@ description: "Support module for serialization tests."
 package: Testing
 version: VERSION
 core: 8.x
-hidden: TRUE
diff --git a/core/modules/simpletest/tests/modules/phpunit_test/phpunit_test.info.yml b/core/modules/simpletest/tests/modules/phpunit_test/phpunit_test.info.yml
index 0fd89aec2987..e0a4c6e8dffc 100644
--- a/core/modules/simpletest/tests/modules/phpunit_test/phpunit_test.info.yml
+++ b/core/modules/simpletest/tests/modules/phpunit_test/phpunit_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides dummy classes for use by SimpleTest tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: TRUE
diff --git a/core/modules/statistics/tests/modules/statistics_test_views/statistics_test_views.info.yml b/core/modules/statistics/tests/modules/statistics_test_views/statistics_test_views.info.yml
index aff5a5693c34..df9a43ab9c3a 100644
--- a/core/modules/statistics/tests/modules/statistics_test_views/statistics_test_views.info.yml
+++ b/core/modules/statistics/tests/modules/statistics_test_views/statistics_test_views.info.yml
@@ -4,7 +4,6 @@ description: 'Provides default views for views statistics tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: TRUE
 dependencies:
   - statistics
   - views
diff --git a/core/modules/system/tests/modules/action_test/action_test.info.yml b/core/modules/system/tests/modules/action_test/action_test.info.yml
index c639b277cbcb..7cefe06e0a9e 100644
--- a/core/modules/system/tests/modules/action_test/action_test.info.yml
+++ b/core/modules/system/tests/modules/action_test/action_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for action testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.info.yml b/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.info.yml
index 054ebffee001..ba31a29db8d5 100644
--- a/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.info.yml
+++ b/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.info.yml
@@ -4,4 +4,3 @@ description: 'Test for AJAX form calls.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/system/tests/modules/ajax_test/ajax_test.info.yml b/core/modules/system/tests/modules/ajax_test/ajax_test.info.yml
index 153eee9980b2..f1517488aa0b 100644
--- a/core/modules/system/tests/modules/ajax_test/ajax_test.info.yml
+++ b/core/modules/system/tests/modules/ajax_test/ajax_test.info.yml
@@ -6,4 +6,3 @@ version: VERSION
 core: 8.x
 dependencies:
   - contact
-hidden: true
diff --git a/core/modules/system/tests/modules/batch_test/batch_test.info.yml b/core/modules/system/tests/modules/batch_test/batch_test.info.yml
index b45766dd8e18..072017e72cb0 100644
--- a/core/modules/system/tests/modules/batch_test/batch_test.info.yml
+++ b/core/modules/system/tests/modules/batch_test/batch_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Batch API tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/cache_test/cache_test.info.yml b/core/modules/system/tests/modules/cache_test/cache_test.info.yml
index b191556eab62..329e0d6617c0 100644
--- a/core/modules/system/tests/modules/cache_test/cache_test.info.yml
+++ b/core/modules/system/tests/modules/cache_test/cache_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for cache system testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/common_test/common_test.info.yml b/core/modules/system/tests/modules/common_test/common_test.info.yml
index 1a0bc0c3db5d..2efb155b931d 100644
--- a/core/modules/system/tests/modules/common_test/common_test.info.yml
+++ b/core/modules/system/tests/modules/common_test/common_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Common tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/common_test_cron_helper/common_test_cron_helper.info.yml b/core/modules/system/tests/modules/common_test_cron_helper/common_test_cron_helper.info.yml
index ee46ca8ed484..5d1ab7f6d44e 100644
--- a/core/modules/system/tests/modules/common_test_cron_helper/common_test_cron_helper.info.yml
+++ b/core/modules/system/tests/modules/common_test_cron_helper/common_test_cron_helper.info.yml
@@ -4,4 +4,3 @@ description: 'Helper module for CronRunTestCase::testCronExceptions().'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/condition_test/condition_test.info.yml b/core/modules/system/tests/modules/condition_test/condition_test.info.yml
index e51633b52aa1..b664502411a5 100644
--- a/core/modules/system/tests/modules/condition_test/condition_test.info.yml
+++ b/core/modules/system/tests/modules/condition_test/condition_test.info.yml
@@ -4,4 +4,3 @@ description: "Test general form component for condition plugins."
 package: Testing
 version: VERSION
 core: 8.x
-hidden: TRUE
diff --git a/core/modules/system/tests/modules/cron_queue_test/cron_queue_test.info.yml b/core/modules/system/tests/modules/cron_queue_test/cron_queue_test.info.yml
index 2d6dfa3bef3c..014e9188cba8 100644
--- a/core/modules/system/tests/modules/cron_queue_test/cron_queue_test.info.yml
+++ b/core/modules/system/tests/modules/cron_queue_test/cron_queue_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for the cron queue runner.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/database_test/database_test.info.yml b/core/modules/system/tests/modules/database_test/database_test.info.yml
index 914ba1f50116..92cea84c6304 100644
--- a/core/modules/system/tests/modules/database_test/database_test.info.yml
+++ b/core/modules/system/tests/modules/database_test/database_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Database layer tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/system/tests/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml b/core/modules/system/tests/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml
index c4197710d0ee..30bccf712226 100644
--- a/core/modules/system/tests/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml
+++ b/core/modules/system/tests/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing the drupal_system_listing function.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml b/core/modules/system/tests/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml
index 05159569cc48..a04828b4bef5 100644
--- a/core/modules/system/tests/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml
+++ b/core/modules/system/tests/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing the drupal_system_listing function.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/entity_cache_test/entity_cache_test.info.yml b/core/modules/system/tests/modules/entity_cache_test/entity_cache_test.info.yml
index e87d44f98a46..fa4c0fe528da 100644
--- a/core/modules/system/tests/modules/entity_cache_test/entity_cache_test.info.yml
+++ b/core/modules/system/tests/modules/entity_cache_test/entity_cache_test.info.yml
@@ -6,4 +6,3 @@ version: VERSION
 core: 8.x
 dependencies:
   - entity_cache_test_dependency
-hidden: true
diff --git a/core/modules/system/tests/modules/entity_cache_test_dependency/entity_cache_test_dependency.info.yml b/core/modules/system/tests/modules/entity_cache_test_dependency/entity_cache_test_dependency.info.yml
index 6adf6e37a3c6..282fcb76979c 100644
--- a/core/modules/system/tests/modules/entity_cache_test_dependency/entity_cache_test_dependency.info.yml
+++ b/core/modules/system/tests/modules/entity_cache_test_dependency/entity_cache_test_dependency.info.yml
@@ -4,4 +4,3 @@ description: 'Support dependency module for testing entity cache.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.info.yml b/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.info.yml
index c46c26b2df7b..7d35503993e4 100644
--- a/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.info.yml
+++ b/core/modules/system/tests/modules/entity_crud_hook_test/entity_crud_hook_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for CRUD hook tests.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/system/tests/modules/entity_test/entity_test.info.yml b/core/modules/system/tests/modules/entity_test/entity_test.info.yml
index 5bea26a0deb6..bd4382e4d8ba 100644
--- a/core/modules/system/tests/modules/entity_test/entity_test.info.yml
+++ b/core/modules/system/tests/modules/entity_test/entity_test.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - field
   - text
-hidden: true
diff --git a/core/modules/system/tests/modules/error_test/error_test.info.yml b/core/modules/system/tests/modules/error_test/error_test.info.yml
index 1b49c4f3aa3c..f91c7b35706d 100644
--- a/core/modules/system/tests/modules/error_test/error_test.info.yml
+++ b/core/modules/system/tests/modules/error_test/error_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for error and exception testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/form_test/form_test.info.yml b/core/modules/system/tests/modules/form_test/form_test.info.yml
index 3d4280e6aada..39d45eaaf838 100644
--- a/core/modules/system/tests/modules/form_test/form_test.info.yml
+++ b/core/modules/system/tests/modules/form_test/form_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Form API tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/image_test/image_test.info.yml b/core/modules/system/tests/modules/image_test/image_test.info.yml
index e3ed9c56def3..2e54287d54dc 100644
--- a/core/modules/system/tests/modules/image_test/image_test.info.yml
+++ b/core/modules/system/tests/modules/image_test/image_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for image toolkit tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/invalid_module_name_over_the_maximum_allowed_character_length/invalid_module_name_over_the_maximum_allowed_character_length.info.yml b/core/modules/system/tests/modules/invalid_module_name_over_the_maximum_allowed_character_length/invalid_module_name_over_the_maximum_allowed_character_length.info.yml
index 16d9c782123c..db5cdcc570c3 100644
--- a/core/modules/system/tests/modules/invalid_module_name_over_the_maximum_allowed_character_length/invalid_module_name_over_the_maximum_allowed_character_length.info.yml
+++ b/core/modules/system/tests/modules/invalid_module_name_over_the_maximum_allowed_character_length/invalid_module_name_over_the_maximum_allowed_character_length.info.yml
@@ -4,4 +4,3 @@ description: 'Test module with a name over the maximum allowed characters.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: TRUE
diff --git a/core/modules/system/tests/modules/menu_test/menu_test.info.yml b/core/modules/system/tests/modules/menu_test/menu_test.info.yml
index c927d5f00b49..dbba9b866be3 100644
--- a/core/modules/system/tests/modules/menu_test/menu_test.info.yml
+++ b/core/modules/system/tests/modules/menu_test/menu_test.info.yml
@@ -4,7 +4,6 @@ description: 'Support module for menu hook testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - test_page_test
   - menu_ui
diff --git a/core/modules/system/tests/modules/module_autoload_test/module_autoload_test.info.yml b/core/modules/system/tests/modules/module_autoload_test/module_autoload_test.info.yml
index 4437ef62c0f2..18051859569e 100644
--- a/core/modules/system/tests/modules/module_autoload_test/module_autoload_test.info.yml
+++ b/core/modules/system/tests/modules/module_autoload_test/module_autoload_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for module system tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/module_test/module_test.info.yml b/core/modules/system/tests/modules/module_test/module_test.info.yml
index 390706d78540..025525cccdab 100644
--- a/core/modules/system/tests/modules/module_test/module_test.info.yml
+++ b/core/modules/system/tests/modules/module_test/module_test.info.yml
@@ -4,7 +4,6 @@ description: 'Support module for module system testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 # Depends on the Node module to test making a module required using
 # hook_system_info_alter() and ensuring that its dependencies also become
 # required.
diff --git a/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.info.yml b/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.info.yml
index 4aa24559eaf3..1953d92942d2 100644
--- a/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.info.yml
+++ b/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.info.yml
@@ -4,4 +4,3 @@ description: "Support module for paramconverter testing."
 package: Testing
 version: VERSION
 core: 8.x
-hidden: TRUE
diff --git a/core/modules/system/tests/modules/path_test/path_test.info.yml b/core/modules/system/tests/modules/path_test/path_test.info.yml
index 57a5893401d1..ec7e40570470 100644
--- a/core/modules/system/tests/modules/path_test/path_test.info.yml
+++ b/core/modules/system/tests/modules/path_test/path_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for path hook testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/plugin_test/plugin_test.info.yml b/core/modules/system/tests/modules/plugin_test/plugin_test.info.yml
index 087ce08964d6..950a1d02de44 100644
--- a/core/modules/system/tests/modules/plugin_test/plugin_test.info.yml
+++ b/core/modules/system/tests/modules/plugin_test/plugin_test.info.yml
@@ -4,4 +4,3 @@ description: 'Test that plugins can provide plugins and provide namespace discov
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/requirements1_test/requirements1_test.info.yml b/core/modules/system/tests/modules/requirements1_test/requirements1_test.info.yml
index 789cf279d335..6288bf3e5278 100644
--- a/core/modules/system/tests/modules/requirements1_test/requirements1_test.info.yml
+++ b/core/modules/system/tests/modules/requirements1_test/requirements1_test.info.yml
@@ -4,4 +4,3 @@ description: 'Tests that a module is not installed when it fails hook_requiremen
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/requirements2_test/requirements2_test.info.yml b/core/modules/system/tests/modules/requirements2_test/requirements2_test.info.yml
index ed093d87f5a2..670df8091fac 100644
--- a/core/modules/system/tests/modules/requirements2_test/requirements2_test.info.yml
+++ b/core/modules/system/tests/modules/requirements2_test/requirements2_test.info.yml
@@ -7,4 +7,3 @@ dependencies:
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/router_test_directory/router_test.info.yml b/core/modules/system/tests/modules/router_test_directory/router_test.info.yml
index 915f0ffb3aee..27a082783de4 100644
--- a/core/modules/system/tests/modules/router_test_directory/router_test.info.yml
+++ b/core/modules/system/tests/modules/router_test_directory/router_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for routing testing. In a directory that does not m
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/service_provider_test/service_provider_test.info.yml b/core/modules/system/tests/modules/service_provider_test/service_provider_test.info.yml
index 620c8972a613..ba84020c7ff8 100644
--- a/core/modules/system/tests/modules/service_provider_test/service_provider_test.info.yml
+++ b/core/modules/system/tests/modules/service_provider_test/service_provider_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for service provider testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/session_test/session_test.info.yml b/core/modules/system/tests/modules/session_test/session_test.info.yml
index 9e80a1cbd82c..b9abfef0a998 100644
--- a/core/modules/system/tests/modules/session_test/session_test.info.yml
+++ b/core/modules/system/tests/modules/session_test/session_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for session data testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/system_dependencies_test/system_dependencies_test.info.yml b/core/modules/system/tests/modules/system_dependencies_test/system_dependencies_test.info.yml
index e3ac2dc340a7..e99d48e4a771 100644
--- a/core/modules/system/tests/modules/system_dependencies_test/system_dependencies_test.info.yml
+++ b/core/modules/system/tests/modules/system_dependencies_test/system_dependencies_test.info.yml
@@ -4,6 +4,5 @@ description: 'Support module for testing system dependencies.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - _missing_dependency
diff --git a/core/modules/system/tests/modules/system_incompatible_core_version_dependencies_test/system_incompatible_core_version_dependencies_test.info.yml b/core/modules/system/tests/modules/system_incompatible_core_version_dependencies_test/system_incompatible_core_version_dependencies_test.info.yml
index 4f6a8c0c0ad7..148bd3b71416 100644
--- a/core/modules/system/tests/modules/system_incompatible_core_version_dependencies_test/system_incompatible_core_version_dependencies_test.info.yml
+++ b/core/modules/system/tests/modules/system_incompatible_core_version_dependencies_test/system_incompatible_core_version_dependencies_test.info.yml
@@ -4,6 +4,5 @@ description: 'Support module for testing system dependencies.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - system_incompatible_core_version_test
diff --git a/core/modules/system/tests/modules/system_incompatible_core_version_test/system_incompatible_core_version_test.info.yml b/core/modules/system/tests/modules/system_incompatible_core_version_test/system_incompatible_core_version_test.info.yml
index 47dce2bc25b3..d99300b83098 100644
--- a/core/modules/system/tests/modules/system_incompatible_core_version_test/system_incompatible_core_version_test.info.yml
+++ b/core/modules/system/tests/modules/system_incompatible_core_version_test/system_incompatible_core_version_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing system dependencies.'
 package: Testing
 version: VERSION
 core: 5.x
-hidden: true
diff --git a/core/modules/system/tests/modules/system_incompatible_module_version_dependencies_test/system_incompatible_module_version_dependencies_test.info.yml b/core/modules/system/tests/modules/system_incompatible_module_version_dependencies_test/system_incompatible_module_version_dependencies_test.info.yml
index 244235f50131..55e004b0dd4f 100644
--- a/core/modules/system/tests/modules/system_incompatible_module_version_dependencies_test/system_incompatible_module_version_dependencies_test.info.yml
+++ b/core/modules/system/tests/modules/system_incompatible_module_version_dependencies_test/system_incompatible_module_version_dependencies_test.info.yml
@@ -4,6 +4,5 @@ description: 'Support module for testing system dependencies.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 dependencies:
   - 'system_incompatible_module_version_test (>2.0)'
diff --git a/core/modules/system/tests/modules/system_incompatible_module_version_test/system_incompatible_module_version_test.info.yml b/core/modules/system/tests/modules/system_incompatible_module_version_test/system_incompatible_module_version_test.info.yml
index 78c1a900a4e5..f0076b1e437a 100644
--- a/core/modules/system/tests/modules/system_incompatible_module_version_test/system_incompatible_module_version_test.info.yml
+++ b/core/modules/system/tests/modules/system_incompatible_module_version_test/system_incompatible_module_version_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing system dependencies.'
 package: Testing
 version: '1.0'
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/system_mail_failure_test/system_mail_failure_test.info.yml b/core/modules/system/tests/modules/system_mail_failure_test/system_mail_failure_test.info.yml
index 3561097827d1..12ad6e249fc7 100644
--- a/core/modules/system/tests/modules/system_mail_failure_test/system_mail_failure_test.info.yml
+++ b/core/modules/system/tests/modules/system_mail_failure_test/system_mail_failure_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides a malfunctioning mail service for testing purposes.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/system_module_test/system_module_test.info.yml b/core/modules/system/tests/modules/system_module_test/system_module_test.info.yml
index c4403d305ed3..6b787f5e0062 100644
--- a/core/modules/system/tests/modules/system_module_test/system_module_test.info.yml
+++ b/core/modules/system/tests/modules/system_module_test/system_module_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides hook implementations for testing System module functional
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/system_test/system_test.info.yml b/core/modules/system/tests/modules/system_test/system_test.info.yml
index eff3630b2000..722870945740 100644
--- a/core/modules/system/tests/modules/system_test/system_test.info.yml
+++ b/core/modules/system/tests/modules/system_test/system_test.info.yml
@@ -4,7 +4,6 @@ description: 'Support module for system testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
 configure: system_test.configure
 configure_parameters:
   foo: bar
diff --git a/core/modules/system/tests/modules/test_page_test/test_page_test.info.yml b/core/modules/system/tests/modules/test_page_test/test_page_test.info.yml
index 053deb248d74..f01c59717283 100644
--- a/core/modules/system/tests/modules/test_page_test/test_page_test.info.yml
+++ b/core/modules/system/tests/modules/test_page_test/test_page_test.info.yml
@@ -4,4 +4,3 @@ description: 'Provides a test page for automated tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/theme_page_test/theme_page_test.info.yml b/core/modules/system/tests/modules/theme_page_test/theme_page_test.info.yml
index 587e8a173467..da50bb11e8e5 100644
--- a/core/modules/system/tests/modules/theme_page_test/theme_page_test.info.yml
+++ b/core/modules/system/tests/modules/theme_page_test/theme_page_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for theme system testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/theme_suggestions_test/theme_suggestions_test.info.yml b/core/modules/system/tests/modules/theme_suggestions_test/theme_suggestions_test.info.yml
index 95f429f2894a..fe61d0d91d16 100644
--- a/core/modules/system/tests/modules/theme_suggestions_test/theme_suggestions_test.info.yml
+++ b/core/modules/system/tests/modules/theme_suggestions_test/theme_suggestions_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing theme suggestions.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/theme_test/theme_test.info.yml b/core/modules/system/tests/modules/theme_test/theme_test.info.yml
index 863e112c81cd..0fe8c1019d46 100644
--- a/core/modules/system/tests/modules/theme_test/theme_test.info.yml
+++ b/core/modules/system/tests/modules/theme_test/theme_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for theme system testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/transliterate_test/transliterate_test.info.yml b/core/modules/system/tests/modules/transliterate_test/transliterate_test.info.yml
index 15a724ef3f14..9eeddd5a6eec 100644
--- a/core/modules/system/tests/modules/transliterate_test/transliterate_test.info.yml
+++ b/core/modules/system/tests/modules/transliterate_test/transliterate_test.info.yml
@@ -4,4 +4,3 @@ description: 'Helper module for Transliteration system tests.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/twig_extension_test/twig_extension_test.info.yml b/core/modules/system/tests/modules/twig_extension_test/twig_extension_test.info.yml
index 270352fa7a56..5aee1e269525 100644
--- a/core/modules/system/tests/modules/twig_extension_test/twig_extension_test.info.yml
+++ b/core/modules/system/tests/modules/twig_extension_test/twig_extension_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing Twig extensions.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_a/twig_namespace_a.info.yml b/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_a/twig_namespace_a.info.yml
index d007f218cd4b..7584b57cdaa9 100644
--- a/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_a/twig_namespace_a.info.yml
+++ b/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_a/twig_namespace_a.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Twig namespace testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_b/twig_namespace_b.info.yml b/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_b/twig_namespace_b.info.yml
index d007f218cd4b..7584b57cdaa9 100644
--- a/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_b/twig_namespace_b.info.yml
+++ b/core/modules/system/tests/modules/twig_theme_test/modules/twig_namespace_b/twig_namespace_b.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Twig namespace testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.info.yml b/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.info.yml
index f340341956e5..751531592d1c 100644
--- a/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.info.yml
+++ b/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for Twig theme system testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/update_script_test/update_script_test.info.yml b/core/modules/system/tests/modules/update_script_test/update_script_test.info.yml
index cd04f160be61..b582c1ab83a8 100644
--- a/core/modules/system/tests/modules/update_script_test/update_script_test.info.yml
+++ b/core/modules/system/tests/modules/update_script_test/update_script_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update script testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/update_test_0/update_test_0.info.yml b/core/modules/system/tests/modules/update_test_0/update_test_0.info.yml
index d9f07cd263df..4162fd02c950 100644
--- a/core/modules/system/tests/modules/update_test_0/update_test_0.info.yml
+++ b/core/modules/system/tests/modules/update_test_0/update_test_0.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/update_test_1/update_test_1.info.yml b/core/modules/system/tests/modules/update_test_1/update_test_1.info.yml
index 8ac616f313ea..5a7e2e1fa8c6 100644
--- a/core/modules/system/tests/modules/update_test_1/update_test_1.info.yml
+++ b/core/modules/system/tests/modules/update_test_1/update_test_1.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/update_test_2/update_test_2.info.yml b/core/modules/system/tests/modules/update_test_2/update_test_2.info.yml
index 8ac616f313ea..5a7e2e1fa8c6 100644
--- a/core/modules/system/tests/modules/update_test_2/update_test_2.info.yml
+++ b/core/modules/system/tests/modules/update_test_2/update_test_2.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/update_test_3/update_test_3.info.yml b/core/modules/system/tests/modules/update_test_3/update_test_3.info.yml
index 8ac616f313ea..5a7e2e1fa8c6 100644
--- a/core/modules/system/tests/modules/update_test_3/update_test_3.info.yml
+++ b/core/modules/system/tests/modules/update_test_3/update_test_3.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/update_test_invalid_hook/update_test_invalid_hook.info.yml b/core/modules/system/tests/modules/update_test_invalid_hook/update_test_invalid_hook.info.yml
index a41ace9e3a27..b9aefba42f09 100644
--- a/core/modules/system/tests/modules/update_test_invalid_hook/update_test_invalid_hook.info.yml
+++ b/core/modules/system/tests/modules/update_test_invalid_hook/update_test_invalid_hook.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/update_test_with_7x/update_test_with_7x.info.yml b/core/modules/system/tests/modules/update_test_with_7x/update_test_with_7x.info.yml
index 3ac4a357d10e..2b47a0490443 100644
--- a/core/modules/system/tests/modules/update_test_with_7x/update_test_with_7x.info.yml
+++ b/core/modules/system/tests/modules/update_test_with_7x/update_test_with_7x.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/system/tests/modules/url_alter_test/url_alter_test.info.yml b/core/modules/system/tests/modules/url_alter_test/url_alter_test.info.yml
index 699683e13f08..95aba30857fa 100644
--- a/core/modules/system/tests/modules/url_alter_test/url_alter_test.info.yml
+++ b/core/modules/system/tests/modules/url_alter_test/url_alter_test.info.yml
@@ -4,4 +4,3 @@ description: 'A support module to test altering the inbound and outbound path.'
 core: 8.x
 package: Testing
 version: VERSION
-hidden: true
diff --git a/core/modules/system/tests/themes/test_basetheme/test_basetheme.info.yml b/core/modules/system/tests/themes/test_basetheme/test_basetheme.info.yml
index 48c5b2b0eabf..2edc8234d689 100644
--- a/core/modules/system/tests/themes/test_basetheme/test_basetheme.info.yml
+++ b/core/modules/system/tests/themes/test_basetheme/test_basetheme.info.yml
@@ -3,7 +3,6 @@ type: theme
 description: 'Test theme which acts as a base theme for other test subthemes.'
 version: VERSION
 core: 8.x
-hidden: true
 stylesheets:
   all:
     - base-add.css
diff --git a/core/modules/system/tests/themes/test_invalid_basetheme/test_invalid_basetheme.info.yml b/core/modules/system/tests/themes/test_invalid_basetheme/test_invalid_basetheme.info.yml
index a8d2bfe4157e..f29a4d46af79 100644
--- a/core/modules/system/tests/themes/test_invalid_basetheme/test_invalid_basetheme.info.yml
+++ b/core/modules/system/tests/themes/test_invalid_basetheme/test_invalid_basetheme.info.yml
@@ -4,4 +4,3 @@ description: 'Test theme which has a non-existent base theme.'
 version: VERSION
 core: 8.x
 'base theme': not_real_test_basetheme
-hidden: true
diff --git a/core/modules/system/tests/themes/test_invalid_engine/test_invalid_engine.info.yml b/core/modules/system/tests/themes/test_invalid_engine/test_invalid_engine.info.yml
index 3f9ed1e74f41..229ede49bfc5 100644
--- a/core/modules/system/tests/themes/test_invalid_engine/test_invalid_engine.info.yml
+++ b/core/modules/system/tests/themes/test_invalid_engine/test_invalid_engine.info.yml
@@ -3,5 +3,4 @@ type: theme
 description: 'Test theme which has a non-existent theme engine.'
 version: VERSION
 core: 8.x
-hidden: true
 engine: not_real_engine
diff --git a/core/modules/system/tests/themes/test_subtheme/test_subtheme.info.yml b/core/modules/system/tests/themes/test_subtheme/test_subtheme.info.yml
index 61236846f1f7..6adfee4b0b31 100644
--- a/core/modules/system/tests/themes/test_subtheme/test_subtheme.info.yml
+++ b/core/modules/system/tests/themes/test_subtheme/test_subtheme.info.yml
@@ -4,7 +4,6 @@ description: 'Test theme which uses test_basetheme as the base theme.'
 version: VERSION
 core: 8.x
 'base theme': test_basetheme
-hidden: true
 stylesheets:
   all:
     - css/sub-add.css
diff --git a/core/modules/system/tests/themes/test_theme/test_theme.info.yml b/core/modules/system/tests/themes/test_theme/test_theme.info.yml
index f41fafc5d630..d84587538a48 100644
--- a/core/modules/system/tests/themes/test_theme/test_theme.info.yml
+++ b/core/modules/system/tests/themes/test_theme/test_theme.info.yml
@@ -13,7 +13,6 @@ type: theme
 description: 'Theme for testing the theme system'
 version: VERSION
 core: 8.x
-hidden: true
 stylesheets-remove:
   - system.module.css
 settings:
diff --git a/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 b/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
index fa0a207717f0..46432b4f5614 100644
--- a/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
+++ b/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
@@ -2,4 +2,3 @@ type: theme
 core: 8.x
 name: 'Test theme with a too long name'
 version: VERSION
-hidden: true
diff --git a/core/modules/system/tests/themes/test_theme_phptemplate/test_theme_phptemplate.info.yml b/core/modules/system/tests/themes/test_theme_phptemplate/test_theme_phptemplate.info.yml
index e1a876a483d0..da076b1f80a9 100644
--- a/core/modules/system/tests/themes/test_theme_phptemplate/test_theme_phptemplate.info.yml
+++ b/core/modules/system/tests/themes/test_theme_phptemplate/test_theme_phptemplate.info.yml
@@ -4,4 +4,3 @@ description: 'Theme for testing the theme system with the PHPTemplate engine'
 version: VERSION
 core: 8.x
 engine: phptemplate
-hidden: true
diff --git a/core/modules/taxonomy/tests/modules/taxonomy_test_views/taxonomy_test_views.info.yml b/core/modules/taxonomy/tests/modules/taxonomy_test_views/taxonomy_test_views.info.yml
index 864ce9894a9e..be879060521b 100644
--- a/core/modules/taxonomy/tests/modules/taxonomy_test_views/taxonomy_test_views.info.yml
+++ b/core/modules/taxonomy/tests/modules/taxonomy_test_views/taxonomy_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - taxonomy
   - views
-hidden: true
diff --git a/core/modules/toolbar/tests/modules/toolbar_test/toolbar_test.info.yml b/core/modules/toolbar/tests/modules/toolbar_test/toolbar_test.info.yml
index 961d81ed4d18..98fc607cc598 100644
--- a/core/modules/toolbar/tests/modules/toolbar_test/toolbar_test.info.yml
+++ b/core/modules/toolbar/tests/modules/toolbar_test/toolbar_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for toolbar testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/tour/tests/tour_test/tour_test.info.yml b/core/modules/tour/tests/tour_test/tour_test.info.yml
index 0617983f5aba..e55953adf38f 100644
--- a/core/modules/tour/tests/tour_test/tour_test.info.yml
+++ b/core/modules/tour/tests/tour_test/tour_test.info.yml
@@ -4,6 +4,5 @@ description: Tests module for tour module.
 package: Core
 version: VERSION
 core: 8.x
-hidden: TRUE
 dependencies:
   - tour
diff --git a/core/modules/tracker/tests/modules/tracker_test_views/tracker_test_views.info.yml b/core/modules/tracker/tests/modules/tracker_test_views/tracker_test_views.info.yml
index 9eb2c618028e..45a64a1a48e8 100644
--- a/core/modules/tracker/tests/modules/tracker_test_views/tracker_test_views.info.yml
+++ b/core/modules/tracker/tests/modules/tracker_test_views/tracker_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - tracker
   - views
-hidden: true
diff --git a/core/modules/update/tests/aaa_update_test/aaa_update_test.info.yml b/core/modules/update/tests/aaa_update_test/aaa_update_test.info.yml
index 0bfea759e51b..c424e74f7a4c 100644
--- a/core/modules/update/tests/aaa_update_test/aaa_update_test.info.yml
+++ b/core/modules/update/tests/aaa_update_test/aaa_update_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/update/tests/modules/aaa_update_test/aaa_update_test.info.yml b/core/modules/update/tests/modules/aaa_update_test/aaa_update_test.info.yml
index 0bfea759e51b..c424e74f7a4c 100644
--- a/core/modules/update/tests/modules/aaa_update_test/aaa_update_test.info.yml
+++ b/core/modules/update/tests/modules/aaa_update_test/aaa_update_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/update/tests/modules/bbb_update_test/bbb_update_test.info.yml b/core/modules/update/tests/modules/bbb_update_test/bbb_update_test.info.yml
index 25540c3d3dd0..0c2226bcc346 100644
--- a/core/modules/update/tests/modules/bbb_update_test/bbb_update_test.info.yml
+++ b/core/modules/update/tests/modules/bbb_update_test/bbb_update_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/update/tests/modules/ccc_update_test/ccc_update_test.info.yml b/core/modules/update/tests/modules/ccc_update_test/ccc_update_test.info.yml
index 919adcd7f49a..6fcd4ec22637 100644
--- a/core/modules/update/tests/modules/ccc_update_test/ccc_update_test.info.yml
+++ b/core/modules/update/tests/modules/ccc_update_test/ccc_update_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/update/tests/modules/update_test/update_test.info.yml b/core/modules/update/tests/modules/update_test/update_test.info.yml
index f6e38a3911d3..053aafcfe0ca 100644
--- a/core/modules/update/tests/modules/update_test/update_test.info.yml
+++ b/core/modules/update/tests/modules/update_test/update_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for update module testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/update/tests/themes/update_test_basetheme/update_test_basetheme.info.yml b/core/modules/update/tests/themes/update_test_basetheme/update_test_basetheme.info.yml
index cdb01bb10c52..916214790983 100644
--- a/core/modules/update/tests/themes/update_test_basetheme/update_test_basetheme.info.yml
+++ b/core/modules/update/tests/themes/update_test_basetheme/update_test_basetheme.info.yml
@@ -3,4 +3,3 @@ type: theme
 description: 'Test theme which acts as a base theme for other test subthemes.'
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/update/tests/themes/update_test_subtheme/update_test_subtheme.info.yml b/core/modules/update/tests/themes/update_test_subtheme/update_test_subtheme.info.yml
index d84454284626..2580fd6e8ce2 100644
--- a/core/modules/update/tests/themes/update_test_subtheme/update_test_subtheme.info.yml
+++ b/core/modules/update/tests/themes/update_test_subtheme/update_test_subtheme.info.yml
@@ -4,4 +4,3 @@ description: 'Test theme which uses update_test_basetheme as the base theme.'
 version: VERSION
 core: 8.x
 'base theme': update_test_basetheme
-hidden: true
diff --git a/core/modules/user/tests/modules/user_custom_phpass_params_test/user_custom_phpass_params_test.info.yml b/core/modules/user/tests/modules/user_custom_phpass_params_test/user_custom_phpass_params_test.info.yml
index f227a3455ca4..68b8ff9a3c3a 100644
--- a/core/modules/user/tests/modules/user_custom_phpass_params_test/user_custom_phpass_params_test.info.yml
+++ b/core/modules/user/tests/modules/user_custom_phpass_params_test/user_custom_phpass_params_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing custom phpass password algorithm parame
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/user/tests/modules/user_form_test/user_form_test.info.yml b/core/modules/user/tests/modules/user_form_test/user_form_test.info.yml
index ceea331599fc..e77ebf28cb74 100644
--- a/core/modules/user/tests/modules/user_form_test/user_form_test.info.yml
+++ b/core/modules/user/tests/modules/user_form_test/user_form_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for user form testing.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/modules/user/tests/modules/user_test_views/user_test_views.info.yml b/core/modules/user/tests/modules/user_test_views/user_test_views.info.yml
index e13b350e324a..2554769a3606 100644
--- a/core/modules/user/tests/modules/user_test_views/user_test_views.info.yml
+++ b/core/modules/user/tests/modules/user_test_views/user_test_views.info.yml
@@ -7,4 +7,3 @@ core: 8.x
 dependencies:
   - user
   - views
-hidden: true
diff --git a/core/modules/views/tests/modules/views_test_config/views_test_config.info.yml b/core/modules/views/tests/modules/views_test_config/views_test_config.info.yml
index edbfd9ccfbdd..33925738e360 100644
--- a/core/modules/views/tests/modules/views_test_config/views_test_config.info.yml
+++ b/core/modules/views/tests/modules/views_test_config/views_test_config.info.yml
@@ -6,4 +6,3 @@ version: VERSION
 core: 8.x
 dependencies:
   - views
-hidden: true
diff --git a/core/modules/views/tests/modules/views_test_data/views_test_data.info.yml b/core/modules/views/tests/modules/views_test_data/views_test_data.info.yml
index 07084c056fe6..39b72e453ee6 100644
--- a/core/modules/views/tests/modules/views_test_data/views_test_data.info.yml
+++ b/core/modules/views/tests/modules/views_test_data/views_test_data.info.yml
@@ -6,4 +6,3 @@ version: VERSION
 core: 8.x
 dependencies:
   - views
-hidden: true
diff --git a/core/modules/xmlrpc/tests/modules/xmlrpc_test/xmlrpc_test.info.yml b/core/modules/xmlrpc/tests/modules/xmlrpc_test/xmlrpc_test.info.yml
index 9c0fe2a499fb..0359f92736b4 100644
--- a/core/modules/xmlrpc/tests/modules/xmlrpc_test/xmlrpc_test.info.yml
+++ b/core/modules/xmlrpc/tests/modules/xmlrpc_test/xmlrpc_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for XML-RPC tests according to the validator1 speci
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/profiles/testing/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml b/core/profiles/testing/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml
index c4197710d0ee..30bccf712226 100644
--- a/core/profiles/testing/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml
+++ b/core/profiles/testing/modules/drupal_system_listing_compatible_test/drupal_system_listing_compatible_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing the drupal_system_listing function.'
 package: Testing
 version: VERSION
 core: 8.x
-hidden: true
diff --git a/core/profiles/testing/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml b/core/profiles/testing/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml
index 042257df30ae..17bda6cfd015 100644
--- a/core/profiles/testing/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml
+++ b/core/profiles/testing/modules/drupal_system_listing_incompatible_test/drupal_system_listing_incompatible_test.info.yml
@@ -4,4 +4,3 @@ description: 'Support module for testing the drupal_system_listing function.'
 package: Testing
 version: VERSION
 core: 6.x
-hidden: true
-- 
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