public void AddDefaultValue_adds_operation()
        {
            var builder = new MigrationBuilder();

            builder.AddDefaultValue("dbo.MyTable", "Foo", 5);

            Assert.Equal(1, builder.Operations.Count);
            Assert.IsType <AddDefaultConstraintOperation>(builder.Operations[0]);

            var operation = (AddDefaultConstraintOperation)builder.Operations[0];

            Assert.Equal("dbo.MyTable", operation.TableName);
            Assert.Equal("Foo", operation.ColumnName);
            Assert.Equal(5, operation.DefaultValue);
            Assert.Null(operation.DefaultSql);
        }