public void MinusOperator_SubstractingSecondListHasMoreItems_ShouldReturnSubstractedList()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
CustomClassList <int> expected1 = new CustomClassList <int>();
CustomClassList <int> actual1 = new CustomClassList <int>();
test1.Add(0);
test1.Add(1);
test1.Add(2);
test2.Add(1);
test2.Add(3);
test2.Add(4);
test2.Add(5);
expected1.Add(0);
expected1.Add(2);
string expected = expected1.ToString();
// act
actual1 = test1 - test2;
string actual = actual1.ToString();
// assert
Assert.AreEqual(expected, actual);
}
public void PlusOperator_AddTwoCustomIntegerListsTogether_LastItemShouldBeTheLastIndexOfSecondList()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
test1.Add(1);
test1.Add(3);
test1.Add(5);
test2.Add(2);
test2.Add(4);
test2.Add(6);
CustomClassList <int> result;
int expected;
int actual;
// act
result = new CustomClassList <int>();
result = test1 + test2;
actual = test2[2];
expected = result[5];
// assert
Assert.AreEqual(expected, actual);
}
public void PlusOperator_AddTwoCustomIntegerListsWithThreeAndFiveItems_FourthItemOfResultListShouldBeFirstIndexOfSecondList()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
test1.Add(1);
test1.Add(2);
test1.Add(3);
test2.Add(4);
test2.Add(5);
test2.Add(6);
test2.Add(7);
test2.Add(8);
CustomClassList <int> result;
int expected;
int actual;
// act
result = new CustomClassList <int>();
result = test1 + test2;
actual = test2[0];
expected = result[3];
// assert
Assert.AreEqual(expected, actual);
}
public void ToString_AListOfBooleans_ReturnFirstBoolPlusSecond()
{
// arrange
CustomClassList <bool> test = new CustomClassList <bool>();
test.Add(true);
test.Add(false);
test.Add(true);
string actual;
// act
actual = test.ToString();
// assert
actual.Should().Be("TrueFalseTrue");
}
public void Remove_ListDoesNotContainTheItem_ReturnsFalse()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
bool expected = false;
bool actual;
// act
actual = test.Remove(3);
// assert
Assert.AreEqual(expected, actual);
}
public void Indexer_GettingValueOfIndexNotExists_ThrowsError()
{
// Arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
test.Add(3);
int value;
// Act
Action act = () => value = test[4];
// Assert
act.Should().Throw <ArgumentOutOfRangeException>();
}
public void Add_AddToListWithTwoItems_CountGoesUpByOne()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(1);
test.Add(2);
int expected = 3;
int actual;
// act
test.Add(3);
actual = test[2];
// assert
Assert.AreEqual(expected, actual);
}
public void ToString_ApplyTOAListOfIntegers_ShouldReturnString()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
test.Add(3);
string actual;
// act
actual = test.ToString();
// assert
actual.Should().Be("0123");
}
public void Add_AddToListWithTwoItems_ValueGoesToIndexTwo()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(1);
test.Add(2);
int expected = 8;
int actual;
// act
test.Add(8);
actual = test[2];
// assert
Assert.AreEqual(expected, actual);
}
public void Remove_RemoveAnItemFromList_CountDecreasesByOne()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
int expected = 2;
int actual;
// act
test.Remove(2);
actual = test.Count;
// assert
Assert.AreEqual(expected, actual);
}
public void Remove_RemoveItemFromTheList_ShiftsRemainderItemsAccordingly()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
int expected = 1;
int actual;
// act
test.Remove(0);
actual = test[0];
// assert
Assert.AreEqual(expected, actual);
}
public void ToString_ApplyToAListOfIntegers_CountDoesntChange()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
test.Add(3);
int expected = 4;
int actual;
// act
test.ToString();
actual = test.Count;
// assert
Assert.AreEqual(expected, actual);
}
public void Add_AddItemsToListMoreThanCurrentCapacity_GoesToNextIndex()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(1);
test.Add(2);
test.Add(3);
test.Add(4);
int expected = 5;
int actual;
// act
test.Add(5);
actual = test[4];
// assert
Assert.AreEqual(expected, actual);
}
public void Add_AddItemsToListMoreThanCurrentCapacity_CapacityIncreases()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
test.Add(3);
int expected = 8;
int actual;
// act
test.Add(4);
actual = test.Capacity;
// assert
Assert.AreEqual(expected, actual);
}
public void ToString_ApplyToAListOfIntegers_TurnsEachNumberToString()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
test.Add(3);
char expected = '1';
string returnedString;
char actual;
// act
returnedString = test.ToString();
actual = returnedString[1];
// assert
Assert.AreEqual(expected, actual);
}
public void Zip_TwoListsWithTwoItems_SecondItemInTheResultListShouldBeTheFirstItemInTheSecondList()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
CustomClassList <int> result = new CustomClassList <int>();
test1.Add(0);
test1.Add(2);
test2.Add(1);
test2.Add(3);
int expected = 1;
int actual;
// act
result = test1.Zip(test2);
actual = result[1];
// assert
Assert.AreEqual(expected, actual);
}
public void Zip_ZippingTwoListsWithTwoItems_FirstItemShouldBeFirstItemInTheFirstList()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
CustomClassList <int> result = new CustomClassList <int>();
test1.Add(0);
test1.Add(2);
test2.Add(1);
test2.Add(3);
int expected = 0;
int actual;
// act
result = test1.Zip(test2);
actual = result[0];
// assert
Assert.AreEqual(expected, actual);
}
public void Zip_FirstListHasTwoSecondListHasThreeItems_ResultListsFourthItemShouldBeSecondListsSecondItem()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
CustomClassList <int> result = new CustomClassList <int>();
test1.Add(0);
test1.Add(2);
test2.Add(1);
test2.Add(3);
test2.Add(4);
int expected = 3;
int actual;
// act
result = test1.Zip(test2);
actual = result[3];
// assert
Assert.AreEqual(expected, actual);
}
public void Zip_SecondListHasMoreItems_ExtraItemsShouldBeAddedAtTheEndOfTheResultList()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
CustomClassList <int> result = new CustomClassList <int>();
test1.Add(0);
test1.Add(2);
test2.Add(1);
test2.Add(3);
test2.Add(5);
test2.Add(7);
int expected = 7;
int actual;
// act
result = test1.Zip(test2);
actual = result[5];
// assert
Assert.AreEqual(expected, actual);
}
public void Add_AddToEmptyList_ValueGoesToIndexZero()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
int expected = 10;
int actual;
// act
test.Add(10);
actual = test[0];
// assert
Assert.AreEqual(expected, actual);
}
public void MinusOperator_SubstractingTwoLists_ResultListShouldNotIncludeAnyItemsFromSecondList()
{
// arrange
CustomClassList <int> test1 = new CustomClassList <int>();
CustomClassList <int> test2 = new CustomClassList <int>();
CustomClassList <int> expected1 = new CustomClassList <int>();
CustomClassList <int> actual1 = new CustomClassList <int>();
test1.Add(0);
test1.Add(1);
test1.Add(2);
test2.Add(1);
test2.Add(2);
test2.Add(5);
expected1.Add(0);
string expected = expected1.ToString();
// act
actual1 = test1 - test2;
string actual = actual1.ToString();
// assert
Assert.AreEqual(expected, actual);
}
public void Iteration_AddNumbersInTheList_SumOfTheNumbers()
{
// arrange
CustomClassList <int> test = new CustomClassList <int>();
test.Add(0);
test.Add(1);
test.Add(2);
test.Add(3);
test.Add(4);
test.Add(5);
int expected = 15;
int actual = 0;
// act
foreach (int item in test)
{
actual += item;
}
// assert
Assert.AreEqual(expected, actual);
}