public void ExecuteDirectSqlStatement() { UnitTestHelpers.ExecuteSQLQuery("INSERT INTO Department (Name) values ('IT')", "Linq2SqlDemoData"); UnitTestHelpers.ExecuteSQLQuery("INSERT INTO Department (Name) values ('Accounting')", "Linq2SqlDemoData"); var businessClass = new BusinessClass(); var result = businessClass.GetAllDepartments(); Assert.AreEqual(2, result.Count); }