public void TestArithmaticOverflowSubtraction()
{
_userCalculator = new UserCalculator();
double leftOperand = Double.MinValue;
double rightOperand = Double.MaxValue;
Assert.ThrowsException <ArithmeticException>(() => _userCalculator.PerformOperation(Operator.SUBTRACT, leftOperand, rightOperand));
}
public void TestArithmaticOverflowMultiplication()
{
_userCalculator = new UserCalculator();
double leftOperand = Double.MaxValue;
double rightOperand = Double.MaxValue;
Assert.ThrowsException <ArithmeticException>(() => _userCalculator.PerformOperation(Operator.MULTIPLY, leftOperand, rightOperand));
}
public void TestDivideByZero()
{
_userCalculator = new UserCalculator();
double leftOperand = 35;
double rightOperand = 0;
Assert.ThrowsException <DivideByZeroException>(() => _userCalculator.PerformOperation(Operator.DIVIDE, leftOperand, rightOperand));
}
public void TestDivide()
{
_userCalculator = new UserCalculator();
double leftOperand = 35;
double rightOperand = 5;
Assert.AreEqual(7, _userCalculator.PerformOperation(Operator.DIVIDE, leftOperand, rightOperand));
}
public void TestMultiply()
{
_userCalculator = new UserCalculator();
double leftOperand = 35;
double rightOperand = 5;
Assert.AreEqual(175, _userCalculator.PerformOperation(Operator.MULTIPLY, leftOperand, rightOperand));
}
public void TestSubtract()
{
_userCalculator = new UserCalculator();
double leftOperand = 35;
double rightOperand = 5;
Assert.AreEqual(30, _userCalculator.PerformOperation(Operator.SUBTRACT, leftOperand, rightOperand));
}
public void TestAdd()
{
_userCalculator = new UserCalculator();
double leftOperand = 35;
double rightOperand = 5;
Assert.AreEqual(40, _userCalculator.PerformOperation(Operator.ADD, leftOperand, rightOperand));
}