public void DoesIsEmptyReturnTrueWhenStackIsEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(3);
bool actual = stack.IsEmpty();
bool expected = true;
Assert.AreEqual(expected, actual);
}
public void DoesPushAddElementWhenStackIsFull()
{
ArrayTypedStack stack = new ArrayTypedStack(2);
stack.Push(2);
stack.Push(3);
stack.Push(4);
}
public void DoesIsEmptyReturnFalseWhenStackIsNotEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(2);
stack.Push(3);
bool actualResult = stack.IsEmpty();
bool expectedResult = false;
Assert.AreEqual(expectedResult, actualResult);
}
public void DoesPopRemoveElementWhenStackIsNotEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(3);
stack.Push(3);
stack.Push(2);
int actual = (int)stack.Pop();
int expected = 2;
Assert.AreEqual(expected, actual);
}
public void DoesPopDecreasedSize()
{
ArrayTypedStack stack = new ArrayTypedStack(3);
stack.Push(3);
stack.Push(2);
stack.Pop();
int actual = stack.Size;
int expected = 1;
Assert.AreEqual(expected, actual);
}
public void DoesDisplayElementsPrintsCorrectly()
{
ArrayTypedStack stack = new ArrayTypedStack(3);
stack.Push(1);
stack.Push(2);
stack.Push(3);
string expected = "3 2 1 ";
string actual = stack.DisplayElements();
Assert.AreEqual(expected, actual);
}
public void DoesPushAddElementWhenStackIsEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(1);
stack.Push(3);
string actual = stack.DisplayElements();
string expected = "3 ";
Assert.AreEqual(expected, actual);
int actualSize = stack.Size;
int expectedSize = 1;
Assert.AreEqual(expectedSize, actualSize);
}
public void DoesPeekShowTopElementWhenStackIsNotEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(3);
stack.Push(2);
stack.Push(3);
int actual = (int)stack.Peek();
int expected = 3;
Assert.AreEqual(expected, actual);
int actualSize = stack.Size;
int expectedSize = 2;
Assert.AreEqual(expectedSize, actualSize);
}
public void DoesPopRemoveElementWhenStackIsEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(3);
stack.Pop();
}
public void DoesDisplayElementsThrowExceptionWhenStackIsEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(5);
string s = stack.DisplayElements();
}
public void DoesPeekShowAnythingWhenStackIsEmpty()
{
ArrayTypedStack stack = new ArrayTypedStack(3);
stack.Peek();
}