public async Task CanStoreActivation()
{
var timeout = new CancellationTokenSource(1000).Token;
var(activator, identity, pid) = await GetActivatedClusterIdentity(timeout);
var activation = await _storage.TryGetExistingActivation(identity, timeout);
activation.Should().NotBeNull();
activation !.MemberId.Should().Be(activator.Id);
activation !.Pid.Should().BeEquivalentTo(pid);
}
public async Task WillNotRemoveCurrentActivationByPrevMember()
{
var timeout = new CancellationTokenSource(1000).Token;
var(originalActivator, identity, origPid) = await GetActivatedClusterIdentity(timeout);
await _storage.RemoveActivation(identity, origPid, timeout);
var(newActivator, _, newPid) = await GetActivatedClusterIdentity(timeout, identity : identity);
await _storage.RemoveMember(originalActivator.Id, timeout);
var activation = await _storage.TryGetExistingActivation(identity, timeout);
activation.Should().NotBeNull();
activation !.MemberId.Should().Be(newActivator.Id);
activation !.Pid.Should().BeEquivalentTo(newPid);
}
public async Task DoesNotRemoveIfIdDoesNotMatch()
{
var timeout = new CancellationTokenSource(1000).Token;
var(activator, identity, pid) = await GetActivatedClusterIdentity(timeout);
var differentPid = Activate(activator, identity);
var activation = await _storage.TryGetExistingActivation(identity, timeout);
await _storage.RemoveActivation(identity, differentPid, timeout);
var afterRemoval = await _storage.TryGetExistingActivation(identity, timeout);
activation.Should().NotBeNull();
activation !.MemberId.Should().Be(activator.Id);
activation !.Pid.Should().BeEquivalentTo(pid);
afterRemoval.Should().NotBeNull("Removal pid did not match id, even if it matched cluster identity");
}
public async Task CannotTakeLockWhenAlreadyActivated()
{
var activator = GetFakeActivator();
var timeout = new CancellationTokenSource(1000).Token;
var identity = new ClusterIdentity {
Kind = "thing", Identity = NextId().ToString()
};
var spawnLock = await _storage.TryAcquireLock(identity, timeout);
var pid = Activate(activator, identity);
await _storage.StoreActivation(activator.Id, spawnLock !, pid, timeout);
var activation = await _storage.TryGetExistingActivation(identity, timeout);
activation.Should().NotBeNull();
activation !.MemberId.Should().Be(activator.Id);
activation !.Pid.Should().BeEquivalentTo(pid);
var noLock = await _storage.TryAcquireLock(identity, timeout);
noLock.Should().BeNull("Since the activation is active, it should not be possible to take the lock");
}
public async Task CanWaitForActivation()
{
var activator = GetFakeActivator();
var timeout = CancellationTokens.WithTimeout(15 * 1000);
var identity = new ClusterIdentity {
Kind = "thing", Identity = NextId().ToString()
};
var spawnLock = await _storage.TryAcquireLock(identity, timeout);
var pid = Activate(activator, identity);
_ = SafeTask.Run(async() => {
await Task.Delay(500, timeout);
await _storage.StoreActivation(activator.Id, spawnLock !, pid, timeout);
}, timeout
);
var activation = await _storage.WaitForActivation(identity, timeout);
activation.Should().NotBeNull();
activation !.MemberId.Should().Be(activator.Id);
activation !.Pid.Should().BeEquivalentTo(pid);
}
