private async Task <string?> CheckAppAsync(IAppsCacheGrain cache, CreateApp command)
{
var token = await cache.ReserveAsync(command.AppId, command.Name);
if (token == null)
{
throw new ValidationException(T.Get("apps.nameAlreadyExists"));
}
try
{
var existingId = await GetAppIdAsync(command.Name);
if (existingId != default)
{
throw new ValidationException(T.Get("apps.nameAlreadyExists"));
}
}
catch
{
// Catch our own exception, just in case something went wrong before.
await cache.RemoveReservationAsync(token);
throw;
}
return(token);
}
public async Task Should_add_app_to_indexes_if_creating()
{
var token = RandomHash.Simple();
A.CallTo(() => cache.ReserveAsync(appId.Id, appId.Name))
.Returns(token);
var command = Create(appId.Name);
var context =
new CommandContext(command, commandBus)
.Complete();
await sut.HandleAsync(context);
A.CallTo(() => cache.AddAsync(appId.Id, appId.Name))
.MustHaveHappened();
A.CallTo(() => cache.RemoveReservationAsync(token))
.MustHaveHappened();
}