public void CountTest_column_Revenue_groupSize_0_be_DivideByZeroException()
{
// arrange
var expected = new int[] { 50, 66, 60 };
var target = new DataGroupCounter();
// act
Action act = () => target.Count(this.GetOrders(), "Revenue", 0);
// assert
act.ShouldThrow<DivideByZeroException>();
}
public void CountTest_column_Revenue_groupSize_4_be_50_66_60()
{
// arrange
var expected = new List<int> { 50, 66, 60 };
var target = new DataGroupCounter();
// act
var actual = target.Count(this.GetOrders(), "Revenue", 4);
// assert
CollectionAssert.AreEqual(expected, actual);
}
public void CountTest_column_Cost_groupSize_3_be_6_15_24_21()
{
// arrange
var expected = new List<int> { 6, 15, 24, 21 };
var target = new DataGroupCounter();
// act
var actual = target.Count(this.GetOrders(), "Cost", 3);
// assert
CollectionAssert.AreEqual(expected, actual);
}