public void ViewModel_CalculateArea_ThrowsExceptionIfLengthIsNegativeNumber()
{
var vm = new MainFormViewModel();
vm.Width = "3";
vm.Length = "-3";
Assert.Throws <ArgumentException>("Length", () => vm.GetArea());
}
public void ViewModel_CalculateArea_ThrowsExceptionIfLengthEqualsZero()
{
var vm = new MainFormViewModel();
vm.Width = "3";
vm.Length = "0";
Assert.Throws <ArgumentException>("Length", () => vm.GetArea());
}
public void ViewModel_CalculateArea(string width, string length, int output)
{
var vm = new MainFormViewModel();
vm.Width = width;
vm.Length = length;
int area = vm.GetArea();
Assert.Equal(output, area);
}
private void ButtonDoCalc_Click(object sender, EventArgs e)
{
try
{
_labelArea.Text = _viewModel.GetArea().ToString();
_labelPerimeter.Text = _viewModel.GetPerimeter().ToString();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка");
}
}
