public void TestMethod1()
{
// Arrange - Arrange part I have created an instance of Method Class which I have written in PCL project
InventoryItem inventoryItem = new InventoryItem();
int expectedResult = 16;
// Act - ACT in this portion I am passing the value in method parameter.
int actualResult = inventoryItem.Addititon(11, 5);
// Assert - Assert in this part you can see I am comparing values.
Assert.AreEqual(expectedResult, actualResult);
}