public void ShouldProvideCorrectCalculationResults()
{
// Arrange
IOutputWriter writerMock = new TestOutputWriter();
IInputReader readerMock = new TestInputReader();
var cut = new CustomLogicComponent(readerMock, writerMock);
// Act
cut.DivideExample();
// Assert
Assert.IsTrue(((TestOutputWriter)writerMock)
.DoesItReceive("The result is: 2"), "Calculation is incorrect." + ((TestOutputWriter)writerMock).ReceivedCalls());
}
public void ShouldReadSecondArgument()
{
// Arrange
IOutputWriter writerMock = new TestOutputWriter();
IInputReader readerMock = new TestInputReader();
var sut = new CustomLogicComponent(readerMock, writerMock);
// Act
sut.DivideExample();
// Assert
Assert.IsTrue(((TestOutputWriter)writerMock)
.DoesItReceive("Enter another number to be divided"), "Second phrase is incorrrect");
Assert.AreEqual(2,
((TestInputReader)readerMock).GetReadLineCallsCount());
}
public void ShouldReadSecondArgument()
{
// Arrange
IOutputWriter writerMock = Substitute.For <IOutputWriter>();
IInputReader readerMock = Substitute.For <IInputReader>();
readerMock.ReadLine().Returns("10");
var sut = new CustomLogicComponent(readerMock, writerMock);
// Act
sut.DivideExample();
// Assert
writerMock.Received(1).Write(Arg.Is <string>(w => w == "Enter another number to be divided"));
readerMock.Received(2).ReadLine();
}
public void ShouldProvideCorrectCalculationResults()
{
// Arrange
IOutputWriter writerMock = Substitute.For <IOutputWriter>();
IInputReader readerStub = Substitute.For <IInputReader>();
Stack <int> readLineRetVals = new Stack <int>();
readLineRetVals.Push(2);
readLineRetVals.Push(10);
readerStub.ReadLine().Returns((info) =>
{
return(readLineRetVals.Pop().ToString());
});
var cut = new CustomLogicComponent(readerStub, writerMock);
// Act
cut.DivideExample();
// Assert
writerMock.Received(1).Write(Arg.Is <string>(w => w == "The result is: 5"));
}