public void FromMetaDataWhenColumnsNameNotSet()
        {
            EdmProperty edmProperty = _dbContext.GetPropertyMetaData((Children p) => p.ThirdVariable);

            var mapping = ColumnMapping.FromMetaDdata(edmProperty);

            Assert.AreEqual(false, mapping.IsIdentity);
            Assert.AreEqual(nameof(Children.ThirdVariable), mapping.PropertyName);
            Assert.AreEqual(nameof(Children.ThirdVariable), mapping.SqlName);
            //Assert.AreEqual(SqlDbType.Int    , mapping.SqlType      );
        }
        public void FromMetaDataWhenIdentityColumns()
        {
            EdmProperty edmProperty = _dbContext.GetPropertyMetaData((Parent p) => p.Id);

            var mapping = ColumnMapping.FromMetaDdata(edmProperty);

            Assert.AreEqual(true, mapping.IsIdentity);
            Assert.AreEqual(nameof(Parent.Id), mapping.PropertyName);
            Assert.AreEqual("P_Id", mapping.SqlName);
            //Assert.AreEqual(SqlDbType.Int    , mapping.SqlType      );
        }