public void Remove_CheckIndex_NextIndexReplacesRemovedIndex()
{
//arrange
CustomListClass <int> customList = new CustomListClass <int>();
int value = 1;
int value2 = 2;
int value3 = 3;
int value4 = 4;
int value5 = 5;
int expected;
int actual;
// act
customList.Add(value);
customList.Add(value2);
customList.Add(value3);
customList.Add(value4);
customList.Add(value5);
expected = customList[2];
customList.Remove(value2);
actual = customList[1];
//assert
Assert.AreEqual(expected, actual);
}
public void Remove_CheckWholeList_ValueRemoved()
{
// arrange
CustomListClass <int> customList = new CustomListClass <int>();
int value = 1;
int value2 = 2;
int value3 = 3;
int value4 = 4;
int value5 = 5;
bool expected = false;
bool actual = false;
//act
customList.Add(value);
customList.Add(value2);
customList.Add(value3);
customList.Add(value4);
customList.Add(value5);
customList.Remove(value2);
for (int i = 0; i > customList.Count; i++)
{
if (value2 == customList[i])
{
actual = true;
break;
}
}
//assert
Assert.AreEqual(expected, actual);
}
public void Remove_RemoveFromEmptyList_ItemGoesToIndexZero()
{
// Arrange
CustomListClass <int> testList = new CustomListClass <int>();
int expected = 1;
int actual;
// act
testList.Add(1);
testList.Add(2);
testList.Remove(2);
actual = testList[0];
Assert.AreEqual(expected, actual);
}
public void RemoveFromList()
{
//Arrange
CustomListClass <int> list = new CustomListClass <int>()
{
4, 3
};
int expectedLength = 1;
//Act
list.Remove(3);
//Assert
Assert.AreEqual(expectedLength, list.Count);
}
public void Remove_OneItemFromList_CountGoesDownToOne()
{
// arrange
CustomListClass <int> customList = new CustomListClass <int>();
int expected = 1;
int actual;
// act
customList.Add(1);
customList.Add(2);
customList.Remove(1);
actual = customList.Count;
// assert
Assert.AreEqual(expected, actual);
}
public void Remove_ItemFromMiddleOfList_LastIndicieGoesToZero()
{
// arrange
CustomListClass <int> customList = new CustomListClass <int>();
int expected = 0;
int actual;
// act
customList.Add(1);
customList.Add(2);
customList.Add(3);
customList.Remove(1);
actual = customList[2];
// assert
Assert.AreEqual(expected, actual);
}
public void Remove_ItemNotInList_ListStaysTheSame()
{
// arrange
CustomListClass <int> customList = new CustomListClass <int>();
int expected = 3;
int actual;
// act
customList.Add(1);
customList.Add(2);
customList.Add(3);
customList.Remove(4);
actual = customList.Count;
// assert
Assert.AreEqual(expected, actual);
}
public void Remove_FirstInstanceOfItemFromList_CountGoesDownToTwo()
{
// arrange
CustomListClass <int> customList = new CustomListClass <int>();
int expected = 2;
int actual;
// act
customList.Add(1);
customList.Add(2);
customList.Add(2);
customList.Remove(2);
actual = customList.Count;
// assert
Assert.AreEqual(expected, actual);
}
public void RemoveSpecificSingleVariable_CheckIndexNumbers_IndexOfExistingVariablesUpdatedAfterRemove()
{
CustomListClass <int> myList = new CustomListClass <int>();
int value = 8;
int value2 = 16;
int value3 = 32;
int value4 = 64;
int value5 = 128;
myList.Add(value);
myList.Add(value2);
myList.Add(value3);
myList.Add(value4);
myList.Add(value5);
myList.Remove(value3);
Assert.AreEqual(value4, myList[2]);
}
public void RemoveSpecificSingleVariableUnsuccessfully_CheckItemValue_ExistingVariablesUnChangedAfterFailedRemoval()
{
CustomListClass <int> myList = new CustomListClass <int>();
int value = 8;
int value2 = 16;
int value3 = 32;
int value4 = 64;
int value5 = 128;
myList.Add(value);
myList.Add(value2);
myList.Add(value3);
myList.Add(value4);
myList.Add(value5);
myList.Remove(100);
Assert.AreEqual(value5, myList[4]);
}
public void Remove_ItemFromList_ArraySizeStaysSame()
{
// arrange
CustomListClass <int> customList = new CustomListClass <int>();
int expected = 8;
int actual;
// act
customList.Add(1);
customList.Add(2);
customList.Add(2);
customList.Add(1);
customList.Add(2);
customList.Remove(2);
actual = customList.Capacity;
// assert
Assert.AreEqual(expected, actual);
}
public void Remove_ValueNotInList_ListCountRemainsUnchanged()
{
// Arrange
CustomListClass <int> i = new CustomListClass <int>();
i.Add(0);
i.Add(1);
i.Add(2);
i.Add(3);
i.Add(4);
int expected = 5;
// Act
i.Remove(5);
// Assert
int actual = i.Count;
Assert.AreEqual(expected, actual);
}
public void Remove_ValueInList_ValueIsRemoved()
{
// Arrange
CustomListClass <int> i = new CustomListClass <int>();
i.Add(0);
i.Add(1);
i.Add(2);
i.Add(3);
i.Add(4);
// Act
i.Remove(2);
// Assert
int expected = 3;
int actual = i[2];
Assert.AreEqual(expected, actual);
}
public void RemoveSpecificSingleVariable_CheckCountOfArray_ArrayCountUpdatedAfterRemove()
{
CustomListClass <int> myList = new CustomListClass <int>();
int value = 8;
int value2 = 16;
int value3 = 32;
int value4 = 64;
int value5 = 128;
int value6 = 8;
int value7 = 16;
int value8 = 32;
int value9 = 64;
int value10 = 128;
int value11 = 8;
int value12 = 16;
int value13 = 32;
int value14 = 64;
int value15 = 128;
myList.Add(value);
myList.Add(value2);
myList.Add(value3);
myList.Add(value4);
myList.Add(value5);
myList.Add(value6);
myList.Add(value7);
myList.Add(value8);
myList.Add(value9);
myList.Add(value10);
myList.Add(value11);
myList.Add(value12);
myList.Add(value13);
myList.Add(value14);
myList.Add(value15);
myList.Remove(value15);
Assert.AreEqual(14, myList.count);
}
public void RemoveSpecificSingleVariableUnsuccessfully_CheckCountOfArray_ArrayCountNotChangedByFailedRemoval()
{
CustomListClass <int> myList = new CustomListClass <int>();
int value = 8;
int value2 = 16;
int value3 = 32;
int value4 = 64;
int value5 = 128;
int value6 = 8;
int value7 = 16;
int value8 = 32;
int value9 = 64;
int value10 = 128;
int value11 = 8;
int value12 = 16;
int value13 = 32;
int value14 = 64;
int value15 = 128;
myList.Add(value);
myList.Add(value2);
myList.Add(value3);
myList.Add(value4);
myList.Add(value5);
myList.Add(value6);
myList.Add(value7);
myList.Add(value8);
myList.Add(value9);
myList.Add(value10);
myList.Add(value11);
myList.Add(value12);
myList.Add(value13);
myList.Add(value14);
myList.Add(value15);
myList.Remove(55);
Assert.AreEqual(15, myList.count);
}
public void Remove_CheckCount_CountDecreasesWhenIndexRemoved()
{
//arrange
CustomListClass <int> customList = new CustomListClass <int>();
int value = 1;
int value2 = 2;
int value3 = 3;
int value4 = 4;
int value5 = 5;
//act
customList.Add(value);
customList.Add(value2);
customList.Add(value3);
customList.Add(value4);
customList.Add(value5);
int initialCount = 4;
customList.Remove(customList[0]);
int finalCount = customList.Count;
//assert
Assert.AreEqual(initialCount, finalCount);
}