public void CalculateByGroupTest_countInGroup_1_columnName_Cost_should_return_1_2_3_4_5_6_7_8_9_10_11()
{
//arrange
var target = new ValueCalculator(_products);
var columnName = "Cost";
var countInGroup = 1;
var expected = new int[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11];
//act
var actual = target.CalculateByGroup(columnName, countInGroup);
//assert
CollectionAssert.AreEqual(expected, actual);
}
public void CalculateByGroupTest_columnName_NotExist_countInGroup_5_should_throw_ArgumentException()
{
//arrange
var target = new ValueCalculator(_products);
var columnName = "NotExist";
var countInGroup = 5;
//act
Action actual = () => target.CalculateByGroup(columnName, countInGroup);
//assert
actual.ShouldThrow <ArgumentException>();
}
public void CalculateByGroupTest_columnName_Revenue_countInGroup_4_should_return_50_66_60()
{
//arrange
var target = new ValueCalculator(_products);
var columnName = "Revenue";
var countInGroup = 4;
var expected = new int[50, 66, 60];
//act
var actual = target.CalculateByGroup(columnName, countInGroup);
//assert
CollectionAssert.AreEqual(expected, actual);
}
public void CalculateByGroupTest_columnName_Revenue_countInGroup_negative_1_should_throw_ArgumentException()
{
//arrange
var target = new ValueCalculator(_products);
var columnName = "Revenue";
var countInGroup = -1;
//act
Action actual = () => target.CalculateByGroup(columnName, countInGroup);
//assert
actual.ShouldThrow <ArgumentException>();
}
public void CalculateByGroupTest_countInGroup_3_columnName_Cost_should_return_6_15_24_21()
{
//arrange
var target = new ValueCalculator(_products);
var columnName = "Cost";
var countInGroup = 3;
var expected = new int[6, 15, 24, 21];
//act
var actual = target.CalculateByGroup(columnName, countInGroup);
//assert
CollectionAssert.AreEqual(expected, actual);
}