Remove deprecated ActiveRecord::Migration.check_pending method

Author: rafaelfranca

activerecord/CHANGELOG.md

@@ -1,3 +1,7 @@
+*   Remove deprecated `ActiveRecord::Migration.check_pending` method.
+
+    *Rafael Mendonça França*
+
 *   Remove deprecated `ActiveRecord::LogSubscriber.runtime` method.
 
     *Rafael Mendonça França*

activerecord/lib/active_record/migration.rb

@@ -696,23 +696,6 @@ def nearest_delegate # :nodoc:
         delegate || superclass.nearest_delegate
       end
 
-      # Raises ActiveRecord::PendingMigrationError error if any migrations are pending.
-      #
-      # This is deprecated in favor of +check_all_pending!+
-      def check_pending!(connection = ActiveRecord::Tasks::DatabaseTasks.migration_connection)
-        ActiveRecord.deprecator.warn(<<-MSG.squish)
-          The `check_pending!` method is deprecated in favor of `check_all_pending!`. The
-          new implementation will loop through all available database configurations and find
-          pending migrations. The prior implementation did not permit this.
-        MSG
-
-        pending_migrations = connection.migration_context.open.pending_migrations
-
-        if pending_migrations.any?
-          raise ActiveRecord::PendingMigrationError.new(pending_migrations: pending_migrations)
-        end
-      end
-
       # Raises ActiveRecord::PendingMigrationError error if any migrations are pending
       # for all database configurations in an environment.
       def check_all_pending!

activerecord/test/cases/migration/pending_migrations_test.rb

@@ -44,11 +44,6 @@ def test_errors_if_pending
           assert_pending_migrations("01_create_foo.rb")
         end
 
-        def test_errors_if_pending_with_deprecated_method
-          create_migration "01", "create_foo"
-          assert_deprecated_check_pending("01_create_foo.rb")
-        end
-
         def test_checks_if_supported
           run_migrations
           assert_no_pending_migrations
@@ -92,25 +87,6 @@ def test_with_stdlib_logger
         end
 
         private
-          def assert_deprecated_check_pending(*expected_migrations)
-            2.times do
-              assert_raises ActiveRecord::PendingMigrationError do
-                assert_deprecated(ActiveRecord.deprecator) do
-                  ActiveRecord::Migration.check_pending!
-                end
-              end
-
-              error = assert_raises ActiveRecord::PendingMigrationError do
-                CheckPending.new(proc { flunk }).call({})
-              end
-
-              assert_includes error.message, "Migrations are pending."
-              expected_migrations.each do |migration|
-                assert_includes error.message, migration
-              end
-            end
-          end
-
           def assert_pending_migrations(*expected_migrations)
             2.times do
               assert_raises ActiveRecord::PendingMigrationError do

guides/source/7_2_release_notes.md

@@ -129,6 +129,8 @@ Please refer to the [Changelog][active-record] for detailed changes.
 
 *   Remove deprecated `ActiveRecord::LogSubscriber.reset_runtime` method.
 
+*   Remove deprecated `ActiveRecord::Migration.check_pending` method.
+
 ### Deprecations
 
 ### Notable changes