public async Task ShouldNotSubscribeIfMemberDoesNotExist()
{
var memberIdToSubscribe = Guid.NewGuid();
var memberId = Guid.NewGuid();
var member = new Member(new(memberIdToSubscribe), "member2", 300);
var memberReposiory = new InMemoryMemberRepository(new() { member });
var handler = new SubscribeMemberCommanderHandler(memberReposiory, new InMemoryAuthenticationGateway(true, memberId));
var command = new SubscribeMemberCommand(memberIdToSubscribe);
var record = await Record.ExceptionAsync(() => handler.Handle(command, default));
Assert.IsType <MemberUnknownException>(record);
Assert.Equal($"Member with id {memberId} does not exist", record.Message);
}
public async Task ShouldNotSubscribeIfAlreadyFollowed()
{
var memberIdToSubscribe = Guid.NewGuid();
var memberId = Guid.NewGuid();
var member = new Member(new(memberId), "member1", 300);
member.Subscribe(new(new(memberIdToSubscribe)));
var memberToSubscribe = new Member(new(memberIdToSubscribe), "member2", 300);
var memberReposiory = new InMemoryMemberRepository(new() { member, memberToSubscribe });
var handler = new SubscribeMemberCommanderHandler(memberReposiory, new InMemoryAuthenticationGateway(true, memberId));
var command = new SubscribeMemberCommand(memberIdToSubscribe);
await handler.Handle(command, default);
Assert.Equal(1, member.Subscriptions.Count);
}
public async Task ShouldAddSubscription()
{
var subscriptionId = Guid.NewGuid();
var memberId = Guid.NewGuid();
var memberToSubscribe = new Member(new(subscriptionId), "member2", 300);
var member = new Member(new(memberId), "member1", 300);
var domainListener = new DomainEventsAccessor();
var memberReposiory = new InMemoryMemberRepository(new() { member, memberToSubscribe }, domainListener);
var handler = new SubscribeMemberCommanderHandler(memberReposiory, new InMemoryAuthenticationGateway(true, memberId));
var command = new SubscribeMemberCommand(subscriptionId);
await handler.Handle(command, default);
Assert.Collection(member.Subscriptions, x =>
{
Assert.Equal(subscriptionId, x.MemberId.Value);
});
Assert.Collection(domainListener.GetDomainEvents(), x =>
{
Assert.IsType <MemberSubscribed>(x);
Assert.Equal(memberId, (x as MemberSubscribed).MemberId);
Assert.Equal(subscriptionId, (x as MemberSubscribed).SubscriptionId);
});
}