public void TestSelect()
{
var emps = EmployeeCollection.Get().Where(e => e.Age > 40).Select(e => e);
Assert.AreEqual(3, emps.Count(e => true));
foreach (var emp in emps)
{
Console.WriteLine(emp.Name);
}
}
public void TestSelect1()
{
var emps = from e in EmployeeCollection.Get() where
e.Name.Length > 4 select e;
Assert.AreEqual(4, emps.Count(e => true));
foreach (var emp in emps)
{
Console.WriteLine(emp.Name);
}
}
public static EmployeeCollection GetLongMethod()
{
EmployeeCollection collection = new EmployeeCollection();
Employee employee = new Employee();
employee.Id = 1;
employee.Name = "Raghu";
employee.Age = 25;
collection.Add(employee);
employee = new Employee();
employee.Id = 2;
employee.Name = "Deve Gowda";
employee.Age = 50;
collection.Add(employee);
employee = new Employee();
employee.Id = 3;
employee.Name = "Goobe";
employee.Age = 34;
collection.Add(employee);
employee = new Employee();
employee.Id = 4;
employee.Name = "Tom";
employee.Age = 45;
collection.Add(employee);
employee = new Employee();
employee.Id = 5;
employee.Name = "Dick";
employee.Age = 36;
collection.Add(employee);
employee = new Employee();
employee.Id = 6;
employee.Name = "Harry";
employee.Age = 59;
collection.Add(employee);
return(collection);
}
public void Sum()
{
Assert.AreEqual(
EmployeeCollection.Get().Aggregate(0, (sum, e) => sum + ((e.Age > 40)?e.Salary:0)),
EmployeeCollection.Get().Where(e => e.Age > 40).Sum(e => e.Salary));
}
public void Avg()
{
Assert.AreEqual(41.5, EmployeeCollection.Get().Average(e => e.Age));
}
