Select method is similar with map in python or other languages.
[TestMethod]
public void TestSelect()
{
List<int> squares = Enumerable.Range(1, 4).Select(x => x * x).ToList();
List<int> expect = new List<int>() { 1, 4, 9, 16 };
CollectionAssert.AreEqual(expect, squares);
}
Where method is similar with filter in python or other languages.
[TestMethod]
public void TestWhere()
{
int[] array = { 1, 50, 44 };
var result = array.Where(x => x > 45);
CollectionAssert.Contains(result.ToList(), 50, "test where");
}
Aggregate method is similar with reduce in python or other languages.
[TestMethod]
public void AggregateTest()
{
int[] array = { 1, 50, 50 };
int result = array.Aggregate((a, b) => a + b );
Assert.AreEqual(101, result, "test Aggregate");
}
Sum method is for adding all numbers in Linq
[TestMethod]
public void TestSum()
{
List<int> nums = new List<int> { 1, 2, 3 };
int sumList = nums.Sum(n => n);
Assert.AreEqual(6, sumList, "sum the list");
}