public async Task HandleShouldReturnOk()
{
// Arrange
var instructionReadRepositoryMock = new Mock <IInstructionReadRepository>();
instructionReadRepositoryMock.Setup(x => x.ListAsync(It.IsAny <Expression <Func <Instruction, bool> > >(), It.IsAny <int?>(), It.IsAny <int?>())).Returns(Task.FromResult(Enumerable.Empty <Instruction>()));
var instructionReadRepository = instructionReadRepositoryMock.Object;
var mapperMock = new Mock <IMapper>();
mapperMock.Setup(x => x.Map <IEnumerable <InstructionModel> >(It.IsAny <object>())).Returns(Enumerable.Empty <InstructionModel>());
var mapper = mapperMock.Object;
var query = new ListInstructionQuery(null, null, null);
var handler = new ListInstructionQueryHandler(mapper, instructionReadRepository);
// Act
var result = await handler.Handle(query, CancellationToken.None);
// Assert
result.IsFailure.Should().BeFalse();
result.Should().BeOfType(typeof(Result <InstructionsModel>));
}
public async Task HandleShouldReturnFailWhenDatabaseSpecificErrorOccurs()
{
// Arrange
var instructionReadRepositoryMock = new Mock <IInstructionReadRepository>();
instructionReadRepositoryMock.Setup(x => x.ListAsync(It.IsAny <Expression <Func <Instruction, bool> > >(), It.IsAny <int?>(), It.IsAny <int?>())).Throws <SomeDatabaseSpecificException>();
var instructionReadRepository = instructionReadRepositoryMock.Object;
var mapperMock = new Mock <IMapper>();
mapperMock.Setup(x => x.Map <IEnumerable <InstructionModel> >(It.IsAny <object>())).Returns(Enumerable.Empty <InstructionModel>());
var mapper = mapperMock.Object;
var query = new ListInstructionQuery(null, null, null);
var handler = new ListInstructionQueryHandler(mapper, instructionReadRepository);
// Act
var result = await handler.Handle(query, CancellationToken.None);
// Assert
result.IsFailure.Should().BeTrue();
result.Failures.Should().OnlyContain(x => x.Message == CustomFailures.ListInstructionFailure);
}