public void GivenCustomerCsvWhenCustomerIsNullThenReturnNullReferenceException()
{
// Arrange
var mockInvitationService = new Mock <IInvitationService>();
var mockCsvReader = new Mock <ICsvReader>();
mockCsvReader.Setup(x => x.Parse <Customer>(It.IsAny <string>()));
var controller = new LetterGeneratorController(mockCsvReader.Object, mockInvitationService.Object);
// Act
Action actual = () => controller.Get();
// Assert
Assert.ThrowsException <NullReferenceException>(actual);
}
public void GivenCustomerCsvWhenCustomerStreamIsPresentThenGenerateRenewalInvitationLetters()
{
// Arrange
var mockInvitationService = new Mock <IInvitationService>();
var mockCsvReader = new Mock <ICsvReader>();
var customers = this.GetCustomersMock();
mockCsvReader.Setup(x => x.Parse <Customer>(It.IsAny <string>())).Returns(customers);
mockInvitationService.Setup(x => x.GenerateInvitationLetter(It.IsAny <Customer>()));
var controller = new LetterGeneratorController(mockCsvReader.Object, mockInvitationService.Object);
// Act
var result = controller.Get();
// Assert
mockCsvReader.Verify(c => c.Parse <Customer>(It.IsAny <string>()), Times.Once);
Assert.IsTrue(result);
}