public async Task Handler_should_throw_exception_if_dependency_is_null(int paramsSetIndex)
{
//Arrage
var testArgs = new[]
{
new[] { _dataContextFactoryMock.Object, (object)null },
new[] { (object)null, _mapperMock.Object },
};
var testArgsCurrentSet = testArgs[paramsSetIndex];
//Act
void Act()
{
var handler = new CreatePortableSensorCommandHandler(
(IDataContextFactory <DataContext>)testArgsCurrentSet[0], (IMapper)testArgsCurrentSet[1]);
}
//Assert
Assert.Throws <ArgumentNullException>(Act);
}
public async Task Handler_should_update_database_with_sensor_with_provided_api_key()
{
//Arrange
var apiKey = CryptoHelper.GenerateApiKey();
_dataContextMock.Setup(x => x.PortableSensors).ReturnsDbSet(new List <PortableSensor>());
_dataContextFactoryMock.Setup(x => x.Create()).Returns(_dataContextMock.Object);
var cancellationToken = new CancellationToken();
var command = new CreatePortableSensorCommand(apiKey);
var handler = new CreatePortableSensorCommandHandler(_dataContextFactoryMock.Object, _mapperMock.Object);
//Act
await handler.Handle(command, cancellationToken);
//Assert
//Multiple assert because test is the same for both verified methods and they are very closely related
_dataContextMock.Verify(x => x.PortableSensors.AddAsync(It.Is <PortableSensor>(it => it.ApiKey == apiKey),
It.Is <CancellationToken>(it => it == cancellationToken)), Times.Once);
_dataContextMock.Verify(x => x.SaveChangesAsync(
It.Is <CancellationToken>(it => it == cancellationToken)), Times.Once);
}
public async Task Handler_should_return_created_sensor_dto_with_provided_api_key()
{
//Arrange
var apiKey = CryptoHelper.GenerateApiKey();
_dataContextMock.Setup(x => x.PortableSensors).ReturnsDbSet(new List <PortableSensor>());
_dataContextFactoryMock.Setup(x => x.Create()).Returns(_dataContextMock.Object);
_mapperMock.Setup(x => x.Map <PortableSensor, PortableSensorDTO>(It.IsAny <PortableSensor>())).Returns(
(PortableSensor v) => new PortableSensorDTO
{
ApiKey = v.ApiKey
});
var cancellationToken = new CancellationToken();
var command = new CreatePortableSensorCommand(apiKey);
var handler = new CreatePortableSensorCommandHandler(_dataContextFactoryMock.Object, _mapperMock.Object);
//Act
var result = await handler.Handle(command, cancellationToken);
//Assert
Assert.Equal(apiKey, result.ApiKey);
}
