public async Task <IEnumerable <MessageDto> > Handle(ListMessagesQuery request, CancellationToken cancellationToken)
{
return(await _messageBoardContext
.Messages
.Select(x => MessageDto.Create(x))
.ToListAsync(cancellationToken));
}
public MessagesController
(
IMessageLinkBuilder linkBuilder,
ActionExecutor actionExecutor,
ListMessagesQuery listMessagesQuery,
GetMessageQuery getMessageQuery,
CreateMessageCommand createMessageCommand,
UpdateMessageCommand updateMessageCommand,
DeleteMessageCommand deleteMessageCommand
)
{
_linkBuilder = linkBuilder
?? throw new ArgumentNullException(nameof(linkBuilder));
_actionExecutor = actionExecutor
?? throw new ArgumentNullException(nameof(actionExecutor));
_listMessagesQuery = listMessagesQuery
?? throw new ArgumentNullException(nameof(listMessagesQuery));
_getMessageQuery = getMessageQuery
?? throw new ArgumentNullException(nameof(getMessageQuery));
_deleteMessageCommand = deleteMessageCommand
?? throw new ArgumentNullException(nameof(deleteMessageCommand));
_createMessageCommand = createMessageCommand
?? throw new ArgumentNullException(nameof(createMessageCommand));
_updateMessageCommand = updateMessageCommand
?? throw new ArgumentNullException(nameof(updateMessageCommand));
}
public async Task Should_return_empty_array_when_no_messages_exist()
{
// Arrange
var messages = new List <BoardMessage>();
_mockedReadOnlyContext.Setup(x => x.Messages).Returns(messages.AsQueryable().BuildMock().Object);
var query = new ListMessagesQuery();
var handler = new ListMessagesQueryHandler(_mockedReadOnlyContext.Object);
// Act
var messagesDto = await handler.Handle(query, default);
// Assert
Assert.Empty(messagesDto);
_mockedReadOnlyContext.Verify(x => x.Messages, Times.Once);
}
public async Task Should_return_non_empty_array_when_message_exists()
{
// Arrange
var messages = new List <BoardMessage>
{
BoardMessage.Create("The message", Guid.NewGuid().ToString())
};
_mockedReadOnlyContext.Setup(x => x.Messages).Returns(messages.AsQueryable().BuildMock().Object);
var query = new ListMessagesQuery();
var handler = new ListMessagesQueryHandler(_mockedReadOnlyContext.Object);
// Act
var messagesDto = await handler.Handle(query, default);
// Assert
Assert.NotEmpty(messagesDto);
_mockedReadOnlyContext.Verify(x => x.Messages, Times.Once);
}
public async Task Should_return_expected_number_of_items()
{
// Arrange
var messages = new List <BoardMessage>
{
BoardMessage.Create("First message", Guid.NewGuid().ToString()),
BoardMessage.Create("Second message", Guid.NewGuid().ToString()),
BoardMessage.Create("Third message", Guid.NewGuid().ToString())
};
_mockedReadOnlyContext.Setup(x => x.Messages).Returns(messages.AsQueryable().BuildMock().Object);
var query = new ListMessagesQuery();
var handler = new ListMessagesQueryHandler(_mockedReadOnlyContext.Object);
// Act
var messagesDto = await handler.Handle(query, default);
// Assert
Assert.NotEmpty(messagesDto);
Assert.Equal(messages.Count, messagesDto.Count());
_mockedReadOnlyContext.Verify(x => x.Messages, Times.Once);
}
public async Task <ApiResponse> ListMessages([FromBody] ListMessagesQuery query)
{
return(await _mediator.Send(query));
}
public void MySetup() => _query = new ListMessagesQuery(State, new MessagePaginator());
