introduce `connection.supports_views?` and basic view tests.

`AbstractAdapter#supports_views?` defaults to `false` so we have to turn it on
in adapter subclasses. Currently the flag only controls test execution.

/cc @yahonda

1 files changed, 4 insertions, 4 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index 3a24ecac77..e72055c9e9 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -197,6 +197,10 @@ module ActiveRecord
         true
       end
 
+      def supports_views?
+        version[0] >= 5
+      end
+
       def native_database_types
         NATIVE_DATABASE_TYPES
       end
@@ -779,10 +783,6 @@ module ActiveRecord
         full_version =~ /mariadb/i
       end
 
-      def supports_views?
-        version[0] >= 5
-      end
-
       def supports_rename_index?
         mariadb? ? false : (version[0] == 5 && version[1] >= 7) || version[0] >= 6
       end