public async Task <ICommandResult> HandleAsync(UpdateChannelNameCommand command)
{
command.Validate();
if (command.Invalid)
{
AddNotifications(command);
return(new CommandResult(false, "Could not update channel name", Errors));
}
GetChannelByIdQueryResult channel = await _channelRepository.GetById(command.Id);
if (channel is null)
{
AddNotification(nameof(command.Id), "Channel not found");
return(new CommandResult(false, "Could not update channel name", Errors));
}
if (command.AdministratorId != channel.AdministratorId)
{
AddNotification(nameof(command.AdministratorId), "AdministratorId does't match channel administrator id");
return(new CommandResult(false, "User does't have permission to update channel name", Errors));
}
if (channel.Name != command.Name)
{
await _channelRepository.UpdateChannelName(command.Id, command.Name);
}
return(new CommandResult(true, "Name successfully updated", new ChannelOutput
{
Id = command.Id,
Name = command.Name
}));
}
public void ShouldReturnErrorWhenNameLenghtIsGreaterThan32()
{
var command = new UpdateChannelNameCommand
{
Id = Guid.NewGuid(),
Name = "PS15TihJoUQEydtvAZFa5SeaHcDNdosgagsPHrLI",
AdministratorId = Guid.NewGuid()
};
command.Validate();
command.Invalid.Should().BeTrue();
}
public void ShouldReturnErrorWhenNameIsNull()
{
var command = new UpdateChannelNameCommand
{
Id = Guid.NewGuid(),
Name = null,
AdministratorId = Guid.NewGuid()
};
command.Validate();
command.Invalid.Should().BeTrue();
}
public void ShouldReturnSuccessWhenCommandIsValid()
{
var command = new UpdateChannelNameCommand
{
Id = Guid.NewGuid(),
Name = "channelTwo",
AdministratorId = Guid.NewGuid()
};
command.Validate();
command.Valid.Should().BeTrue();
}