public void TestMultiplyMethodWithTwoNegativeNumbers()
{
Calculator cal = new Calculator();
string z = "m";
double x = -2.0;
double y = -3.0;
double answer = x * y;
double methodReturn = cal.DoOperation(x, y, z);
Assert.AreEqual(answer, methodReturn);
}
public void TestAddMethodWithTwoPositiveNumbers()
{
Calculator cal = new Calculator();
string z = "a";
double x = 2.0;
double y = 3.0;
double answer = x + y;
double methodReturn = cal.DoOperation(x, y, z);
Assert.AreEqual(answer, methodReturn);
}
public void TestDivideMethodWithZeroAsDividendAndPositiveNumber()
{
Calculator cal = new Calculator();
string z = "d";
double x = 0.0;
double y = 3.0;
double answer = x / y;
double methodReturn = cal.DoOperation(x, y, z);
Assert.AreEqual(answer, methodReturn);
}