public async Task HandleShouldReturnOk()
{
// Arrange
var mapperMock = new Mock <IMapper>();
mapperMock.Setup(x => x.Map <IEnumerable <CustomerModel> >(It.IsAny <object>())).Returns(Enumerable.Empty <CustomerModel>());
var mapper = mapperMock.Object;
var customerReadRepositoryMock = new Mock <ICustomerReadRepository>();
customerReadRepositoryMock.Setup(x => x.ListAsync(It.IsAny <Expression <Func <Customer, bool> > >(), It.IsAny <int?>(), It.IsAny <int?>())).Returns(Task.FromResult(Enumerable.Empty <Customer>()));
var customerReadRepository = customerReadRepositoryMock.Object;
var customerOdataProviderMock = new Mock <ICustomerOdataProvider>();
customerOdataProviderMock.Setup(x => x.GetFilterPredicate(It.IsAny <string>())).Returns((Expression <Func <Customer, bool> >)null);
var customerOdataProvider = customerOdataProviderMock.Object;
var query = new ListCustomerQuery(null, null, null);
var handler = new ListCustomerQueryHandler(mapper, customerReadRepository, customerOdataProvider);
// Act
var result = await handler.Handle(query, CancellationToken.None);
// Assert
result.IsFailure.Should().BeFalse();
result.Should().BeOfType(typeof(Result <CustomersModel>));
}
public async Task HandleShouldReturnFailWhenDatabaseSpecificErrorOccurs()
{
// Arrange
var mapperMock = new Mock <IMapper>();
mapperMock.Setup(x => x.Map <IEnumerable <CustomerModel> >(It.IsAny <object>())).Returns(Enumerable.Empty <CustomerModel>());
var mapper = mapperMock.Object;
var customerReadRepositoryMock = new Mock <ICustomerReadRepository>();
customerReadRepositoryMock.Setup(x => x.ListAsync(It.IsAny <Expression <Func <Customer, bool> > >(), It.IsAny <int?>(), It.IsAny <int?>())).Throws <SomeDatabaseSpecificException>();
var customerReadRepository = customerReadRepositoryMock.Object;
var customerOdataProviderMock = new Mock <ICustomerOdataProvider>();
customerOdataProviderMock.Setup(x => x.GetFilterPredicate(It.IsAny <string>())).Returns((Expression <Func <Customer, bool> >)null);
var customerOdataProvider = customerOdataProviderMock.Object;
var query = new ListCustomerQuery(null, null, null);
var handler = new ListCustomerQueryHandler(mapper, customerReadRepository, customerOdataProvider);
// Act
var result = await handler.Handle(query, CancellationToken.None);
// Assert
result.IsFailure.Should().BeTrue();
result.Failures.Should().OnlyContain(x => x.Message == CustomFailures.ListCustomerFailure);
}