public void Divide_WorksCorrectly_WhenBothNumbersArePositive()
{
var expectedResult = 1d / 2d;
var actualResult = _target.Divide(1, 2);
Assert.AreEqual(expectedResult, actualResult);
}
public void DivideInt()
{
// --- Arrange
var numberA = 10;
var numberB = 2;
var expectedResult = 5;
// --- Act
var result = _service.Divide(numberA, numberB);
// --- Assert
Assert.AreEqual(result, expectedResult);
}
public void DivideTest_ThrowsException()
{
// Arrange
IMathService math = new MathService();
// Act & Assert
Assert.Throws <DivideByZeroException>(() => math.Divide(10, 0));
}
public void DivideTest(int firstValue, int secondValue, int expected)
{
// Arrange
IMathService math = new MathService();
// Act
decimal actual = math.Divide(firstValue, secondValue);
// Assert
Assert.Equal(expected, actual);
}
private void Equal_Click(object sender, RoutedEventArgs e)
{
if (lastNumber == null)
{
lastNumber = null;
}
else
{
switch (selectedOperator)
{
case SelectedOperator.Divide:
if (MathService.isFinished == true)
{
try
{
result = MathService.Divide(lastNumber, MathService.secondNumber);
}
catch (DivideByZeroException ex)
{
MessageBox.Show("Cannot divide by 0", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
lastNumber = 0;
result = 0;
}
}
else
{
try
{
result = MathService.Divide(lastNumber, Convert.ToDouble(Label.Content));
}
catch (DivideByZeroException ex)
{
MessageBox.Show("Cannot divide by 0", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
lastNumber = 0;
result = 0;
}
}
break;
case SelectedOperator.Times:
if (MathService.isFinished == true)
{
result = MathService.Times(lastNumber, MathService.secondNumber);
}
else
{
result = MathService.Times(lastNumber, Convert.ToDouble(Label.Content));
}
break;
case SelectedOperator.Minus:
if (MathService.isFinished == true)
{
result = MathService.Minus(lastNumber, MathService.secondNumber);
}
else
{
result = MathService.Minus(lastNumber, Convert.ToDouble(Label.Content));
}
break;
case SelectedOperator.Plus:
if (MathService.isFinished == true)
{
result = MathService.Plus(lastNumber, MathService.secondNumber);
}
else
{
result = MathService.Plus(lastNumber, Convert.ToDouble(Label.Content));
}
break;
}
Label.Content = result;
lastNumber = result;
}
}
