public void PeekTest()
{
MyStack <int> Stack = new MyArrayStack <int>();
Stack.Push(98);
Stack.Push(20);
Assert.AreEqual(Stack.Peek(), 20);
}
public void Peek_ShouldNotChangeStackCount()
{
// Arrange
var myArrayStack = new MyArrayStack <int>();
myArrayStack.Push(1);
myArrayStack.Push(2);
myArrayStack.Push(3);
myArrayStack.Push(4);
myArrayStack.Push(5);
var expectedCount = myArrayStack.Count;
// Act
myArrayStack.Peek();
myArrayStack.Peek();
// Assert
Assert.AreEqual(expectedCount, myArrayStack.Count);
}
public void Should_Peek_Throw_If_Stack_Is_Empty()
{
//arrange
var stack = new MyArrayStack <int>();
//act
Action act = () => stack.Peek();
//assert
act.ShouldThrow <InvalidOperationException>();
}
public void PeekFromEmptyTest()
{
MyStack <int> Stack = new MyArrayStack <int>();
try
{
Stack.Peek();
}
catch (InvalidOperationException e)
{
StringAssert.Contains(e.Message, "Стек пуст.");
}
}
public void Should_Peek()
{
//arrange
var stack = new MyArrayStack <int>(new[] { 1 });
//act
var result = stack.Peek();
//assert
stack.Count.ShouldBeEquivalentTo(1);
stack.Capacity.ShouldBeEquivalentTo(1);
result.ShouldBeEquivalentTo(1);
}
public void Should_Push_Element_Change_Capacity()
{
//arrange
var stack = new MyArrayStack <int>(new[] { 1, 2, 3, 4 });
var data = 1;
//act
stack.Push(data);
var result = stack.Peek();
//assert
stack.Count.ShouldBeEquivalentTo(5);
stack.Capacity.ShouldBeEquivalentTo(8);
result.ShouldBeEquivalentTo(data);
}
public void Should_Push_Element()
{
//arrange
var stack = new MyArrayStack <int>();
var data = 1;
//act
stack.Push(data);
var result = stack.Peek();
//assert
stack.Count.ShouldBeEquivalentTo(1);
stack.Capacity.ShouldBeEquivalentTo(4);
result.ShouldBeEquivalentTo(data);
}
public void Peek_ShouldReturnLastAddedItem()
{
// Arrange
var myArrayStack = new MyArrayStack <int>();
var expected = 0;
myArrayStack.Push(++expected);
myArrayStack.Push(++expected);
myArrayStack.Push(++expected);
myArrayStack.Push(++expected);
myArrayStack.Push(++expected);
// Act
var actual = myArrayStack.Peek();
// Assert
Assert.AreEqual(expected, actual);
}
public void PeekFromEmptyTest()
{
MyStack<int> Stack = new MyArrayStack<int>();
try
{
Stack.Peek();
}
catch (InvalidOperationException e)
{
StringAssert.Contains(e.Message, "Стек пуст.");
}
}
public void PeekTest()
{
MyStack<int> Stack = new MyArrayStack<int>();
Stack.Push(98);
Stack.Push(20);
Assert.AreEqual(Stack.Peek(), 20);
}
public static void Print <T>(MyArrayStack <T> stack)
{
Console.WriteLine(stack);
Console.WriteLine($"Текущий элемент: {stack.Peek()}");
Console.WriteLine();
}
