moving more column renaming tests

1 files changed, 75 insertions, 0 deletions

diff --git a/activerecord/test/cases/migration/rename_column_test.rb b/activerecord/test/cases/migration/rename_column_test.rb
index ea7674a469..a855841b6c 100644
--- a/activerecord/test/cases/migration/rename_column_test.rb
+++ b/activerecord/test/cases/migration/rename_column_test.rb
@@ -111,6 +111,81 @@ module ActiveRecord
         change_column "test_models", "updated_at", :datetime, :null => false
         change_column "test_models", "updated_at", :datetime, :null => true
       end
+
+      def test_change_column_nullability
+        add_column "test_models", "funny", :boolean
+        assert TestModel.columns_hash["funny"].null, "Column 'funny' must initially allow nulls"
+
+        change_column "test_models", "funny", :boolean, :null => false, :default => true
+
+        TestModel.reset_column_information
+        refute TestModel.columns_hash["funny"].null, "Column 'funny' must *not* allow nulls at this point"
+
+        change_column "test_models", "funny", :boolean, :null => true
+        TestModel.reset_column_information
+        assert TestModel.columns_hash["funny"].null, "Column 'funny' must allow nulls again at this point"
+      end
+
+      def test_change_column
+        add_column 'test_models', 'age', :integer
+        add_column 'test_models', 'approved', :boolean, :default => true
+
+        label = "test_change_column Columns"
+        old_columns = connection.columns(TestModel.table_name, label)
+
+        assert old_columns.find { |c| c.name == 'age' && c.type == :integer }
+
+        change_column "test_models", "age", :string
+
+        new_columns = connection.columns(TestModel.table_name, label)
+
+        refute new_columns.find { |c| c.name == 'age' and c.type == :integer }
+        assert new_columns.find { |c| c.name == 'age' and c.type == :string }
+
+        old_columns = connection.columns(TestModel.table_name, label)
+        assert old_columns.find { |c|
+          c.name == 'approved' && c.type == :boolean && c.default == true
+        }
+
+        change_column :test_models, :approved, :boolean, :default => false
+        new_columns = connection.columns(TestModel.table_name, label)
+
+        refute new_columns.find { |c| c.name == 'approved' and c.type == :boolean and c.default == true }
+        assert new_columns.find { |c| c.name == 'approved' and c.type == :boolean and c.default == false }
+        change_column :test_models, :approved, :boolean, :default => true
+      end
+
+      def test_change_column_with_nil_default
+        add_column "test_models", "contributor", :boolean, :default => true
+        assert TestModel.new.contributor?
+
+        change_column "test_models", "contributor", :boolean, :default => nil
+        TestModel.reset_column_information
+        refute TestModel.new.contributor?
+        assert_nil TestModel.new.contributor
+      end
+
+      def test_change_column_with_new_default
+        add_column "test_models", "administrator", :boolean, :default => true
+        assert TestModel.new.administrator?
+
+        change_column "test_models", "administrator", :boolean, :default => false
+        TestModel.reset_column_information
+        refute TestModel.new.administrator?
+      end
+
+      def test_change_column_default
+        add_column "test_models", "first_name", :string
+        connection.change_column_default "test_models", "first_name", "Tester"
+
+        assert_equal "Tester", TestModel.new.first_name
+      end
+
+      def test_change_column_default_to_null
+        add_column "test_models", "first_name", :string
+        connection.change_column_default "test_models", "first_name", nil
+        assert_nil TestModel.new.first_name
+      end
     end
   end
 end