Show deprecated messages only when target database adapters defined

activerecord/test/cases/tasks/firebird_rake_test.rb

@@ -23,7 +23,7 @@ def initialize(configuration)
           ActiveSupport::Deprecation.silence { super }
         end
       end
-      ActiveRecord::Tasks::DatabaseTasks.stubs(:class_for_adapter).returns(@tasks)
+      ActiveRecord::Tasks::DatabaseTasks.stubs(:class_for_adapter).returns(@tasks) unless defined? ActiveRecord::ConnectionAdapters::FirebirdAdapter
     end
   end
 

activerecord/test/cases/tasks/oracle_rake_test.rb

@@ -17,7 +17,7 @@ def initialize(configuration)
           ActiveSupport::Deprecation.silence { super }
         end
       end
-      ActiveRecord::Tasks::DatabaseTasks.stubs(:class_for_adapter).returns(@tasks)
+      ActiveRecord::Tasks::DatabaseTasks.stubs(:class_for_adapter).returns(@tasks) unless defined? ActiveRecord::ConnectionAdapters::OracleAdapter
     end
   end
 

activerecord/test/cases/tasks/sqlserver_rake_test.rb

@@ -20,7 +20,7 @@ def initialize(configuration)
           ActiveSupport::Deprecation.silence { super }
         end
       end
-      ActiveRecord::Tasks::DatabaseTasks.stubs(:class_for_adapter).returns(@tasks)
+      ActiveRecord::Tasks::DatabaseTasks.stubs(:class_for_adapter).returns(@tasks) unless defined? ActiveRecord::ConnectionAdapters::SQLServerAdapter
     end
   end