public void StackOfPlates_PopAt_WhenEmpty_ThrowsException()
{
// Arrange
var stackOfPlates = new StackOfPlates <int>(3);
Action action = () => { stackOfPlates.PopAt(0); };
// Act && Assert
action.Should().Throw <InvalidOperationException>().WithMessage("The specified stack is empty");
}
public void StackOfPlates_PopAt_whenNotEmpty_AndIndexIsValid_ReturnsTopOfSpecifiedStack()
{
// Arrange
var stackOfPlates = new StackOfPlates <int>(3);
stackOfPlates.push(1);
stackOfPlates.push(2);
stackOfPlates.push(3);
stackOfPlates.push(4);
stackOfPlates.push(5);
stackOfPlates.push(6);
stackOfPlates.push(7);
stackOfPlates.push(8);
stackOfPlates.push(9);
stackOfPlates.push(10);
// Act && Assert
stackOfPlates.PopAt(0).Should().Be(3);
stackOfPlates.PopAt(0).Should().Be(4);
stackOfPlates.PopAt(1).Should().Be(8);
stackOfPlates.PopAt(2).Should().Be(10);
}
public void StackOfPlates_PopAt_WhenIndexIsGreaterThanCurrentStackIndex_ThrowsException()
{
// Arrange
var stackOfPlates = new StackOfPlates <int>(3);
stackOfPlates.push(1);
stackOfPlates.push(2);
stackOfPlates.push(3);
stackOfPlates.push(4);
Action action = () => { stackOfPlates.PopAt(2); };
// Act && Assert
action.Should().Throw <InvalidOperationException>().WithMessage("The specified stack does not exist");
}