public void Should_Return7_WhenAdding3to4()
{
//arrange
var calc = new Calc();
//act
calc.Add(3, 4);
//assert
Assert.That(calc.Result,Is.EqualTo("7"));
}
public void Should_Return4_WhenDivide12And3()
{
//arrange
var calc = new Calc();
//act
calc.Divide(12, 3);
//assert
Assert.That(calc.Result, Is.EqualTo("4"));
}
public void Should_Return2_WhenSubstract5And3()
{
//arrange
var calc = new Calc();
//act
calc.Substract(5, 3);
//assert
Assert.That(calc.Result,Is.EqualTo("2"));
}
public void Should_Return15_WhenMultiply3And5()
{
//arrange
var calc = new Calc();
//act
calc.Multiply(3, 5);
//assert
Assert.That(calc.Result, Is.EqualTo("15"));
}
public void Should_Out4_WhenDivide12And3()
{
//arrange
var calc = new Calc();
var outer = new Mock<IOut>();
calc.Out = outer.Object;
//act
calc.Divide(12, 3);
calc.Print();
//assert
outer.Verify(it => it.Out("4"));
}
public void Should_ReturnNaN_WhenDivide12And0()
{
//arrange
var calc = new Calc();
//act
calc.Divide(12, 0);
//assert
Assert.That(calc.Result, Is.EqualTo(float.PositiveInfinity.ToString()));
}