public void AddRowSalesDataItems_Returns_Success()
 {
     using (var bc = new BusinessContext())
     {
         //Arrange
         var expectedCount = 10;
         //Act
         bc.AddRawSalesData(new RawSalesData("1", "1", "канал сбыта 1", 1000, new DateTime(2015, 7, 20)));
         bc.AddRawSalesData(new RawSalesData("9", "2", "канал сбыта 2", 800, new DateTime(2009, 5, 10)));
         bc.AddRawSalesData(new RawSalesData("3", "3", "канал сбыта 9", 18000, new DateTime(2011, 3, 25)));
         bc.AddRawSalesData(new RawSalesData("4", "1", "канал сбыта 2", 9000, new DateTime(2014, 3, 21)));
         bc.AddRawSalesData(new RawSalesData("1", "2", "канал сбыта 1", 8200, new DateTime(2014, 3, 20)));
         bc.AddRawSalesData(new RawSalesData("2", "1", "канал сбыта 1", 6100, new DateTime(2009, 6, 28)));
         bc.AddRawSalesData(new RawSalesData("9", "3", "канал сбыта 4", 14433, new DateTime(2010, 8, 15)));
         bc.AddRawSalesData(new RawSalesData("2", "1", "канал сбыта 8", 47000, new DateTime(2010, 8, 16)));
         bc.AddRawSalesData(new RawSalesData("1", "4", "канал сбыта 8", 2000, new DateTime(2011, 9, 20)));
         bc.AddRawSalesData(new RawSalesData("1", "4", "канал сбыта 7", 5420, new DateTime(2012, 7, 20)));
         //Assert
         Assert.AreEqual(expectedCount, bc.DataContext.RawSalesDataItems.Count());
     }
 }