public async void Handle_ReturnsNull_WhereCustomerDoesNotExists()
{
// Arrange
var customerId = fixture.Create <int>();
var testDbContext = new ApplicationDbContextBuilder().Build();
mockMapper.Setup(x => x.Map <QueryResult>(null)).Returns((QueryResult)null);
var sut = new QueryHandler(testDbContext, mockMapper.Object);
// Act
var actualResult = await sut.Handle(new Query(customerId), default(CancellationToken));
// Assert
actualResult.Should().BeNull();
}
public async void Handle_ReturnsCustomer_WhereCustomerExists()
{
// Arrange
var customerData = fixture.CreateMany <Data.Customer>(1).ToList();
var testDbContext = new ApplicationDbContextBuilder().WithCustomers(customerData).Build();
var expectedCustomer = fixture.Create <QueryResult>();
mockMapper.Setup(x => x.Map <QueryResult>(It.Is <Data.Customer>(y => y.CustomerId == customerData[0].CustomerId))).Returns(expectedCustomer);
var sut = new QueryHandler(testDbContext, mockMapper.Object);
// Act
var actualResult = await sut.Handle(new Query(customerData[0].CustomerId), default(CancellationToken));
// Assert
actualResult.Should().BeOfType <QueryResult>()
.And.BeSameAs(expectedCustomer);
}
public async void Handle_ReturnsQueryResult()
{
// Arrange
var fixture = new Fixture();
var customerData = fixture.CreateMany <Data.Customer>().ToList();
var testDbContext = new ApplicationDbContextBuilder().WithCustomers(customerData).Build();
var expectedCustomers = fixture.CreateMany <QueryResult.Customer>().ToArray();
var mockMapper = new Mock <IMapper>();
mockMapper.Setup(x => x.Map <QueryResult.Customer[]>(customerData)).Returns(expectedCustomers);
var sut = new QueryHandler(testDbContext, mockMapper.Object);
// Act
var actualResult = await sut.Handle(new Query(), default(CancellationToken));
// Assert
actualResult.Should().BeOfType <QueryResult>()
.Which.Customers.Should().BeSameAs(expectedCustomers);
}
