public void CalculateLeasesToTake_OwnLeasesOnly_ReturnsEmpty()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
IEnumerable <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(new[] { this.CreateLease(ownerSelf, "1"), this.CreateLease(ownerSelf, "2") });
Assert.IsTrue(leasesToTake.Count() == 0);
}
public void CalculateLeasesToTake_NoLeases_ReturnsEmpty()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var leasesToTake = strategy.SelectLeasesToTake(Enumerable.Empty <ILease>());
Assert.Empty(leasesToTake);
}
public void CalculateLeasesToTake_NoLeases_ReturnsEmpty()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
IEnumerable <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(Enumerable.Empty <DocumentServiceLease>());
Assert.IsTrue(leasesToTake.Count() == 0);
}
public void CalculateLeasesToTake_OwnLeasesOnly_ReturnsEmpty()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var leasesToTake = strategy.SelectLeasesToTake(new [] { CreateLease(ownerSelf, "1"), CreateLease(ownerSelf, "2") });
Assert.Empty(leasesToTake);
}
public void CalculateLeasesToTake_ExpiredLeasesOnly_ReturnsAll()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new HashSet <ILease> {
CreateExpiredLease(ownerSelf, "1"), CreateExpiredLease(owner1, "2")
};
var leasesToTake = strategy.SelectLeasesToTake(allLeases);
Assert.Equal(allLeases, new HashSet <ILease>(leasesToTake));
}
public void CalculateLeasesToTake_NotOwnedLeasesOnly_ReturnsAll()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
HashSet <DocumentServiceLease> allLeases = new HashSet <DocumentServiceLease> {
CreateLease(ownerNone, "1"), CreateLease(ownerNone, "2")
};
IEnumerable <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases);
CollectionAssert.AreEqual(allLeases.ToList(), (new HashSet <DocumentServiceLease>(leasesToTake)).ToList());
}
public void CalculateLeasesToTake_ExpiredLeasesOnly_ReturnsAll()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
HashSet <DocumentServiceLease> allLeases = new HashSet <DocumentServiceLease> {
this.CreateExpiredLease(ownerSelf, "1"), this.CreateExpiredLease(owner1, "2")
};
IEnumerable <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases);
CollectionAssert.AreEqual(allLeases.ToList(), new HashSet <DocumentServiceLease>(leasesToTake).ToList());
}
public void CalculateLeasesToTake_OtherSingleOwnerTwoLeasesOnly_ReturnsOne()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
HashSet <DocumentServiceLease> allLeases = new HashSet <DocumentServiceLease> {
this.CreateLease(owner1, "1"), this.CreateLease(owner1, "2")
};
List <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.IsTrue(leasesToTake.Count == 1);
CollectionAssert.IsSubsetOf(new HashSet <DocumentServiceLease>(leasesToTake).ToList(), allLeases.ToList());
}
public void CalculateLeasesToTake_NotOwnedLeasesOnly_ReturnsAllWithNoOwnerReason()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new HashSet <ILease> {
CreateLease(ownerNone, "1"), CreateLease(ownerNone, "2")
};
var leasesToTake = strategy.SelectLeasesToTake(allLeases);
Assert.Equal(allLeases, new HashSet <ILease>(leasesToTake));
Assert.All(leasesToTake, l => AssertAcquireReason(l, LeaseAcquireReason.NotOwned));
}
public void CalculateLeasesToTake_AllOtherOwnersEqualTargetCount_ReturnsEmpty()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new List <ILease>();
allLeases.AddRange(Enumerable.Range(1, 4).Select(index => CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 3).Select(index => CreateLease(ownerSelf, "B" + index.ToString())));
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.Empty(leasesToTake);
}
public void CalculateLeasesToTake_OtherSingleOwnerTwoLeasesOnly_ReturnsOne()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new HashSet <ILease> {
CreateLease(owner1, "1"), CreateLease(owner1, "2")
};
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.Single(leasesToTake);
Assert.Subset(allLeases, new HashSet <ILease>(leasesToTake));
}
public void CalculateLeasesToTake_AllOtherOwnersEqualTargetCount_ReturnsEmpty()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
List <DocumentServiceLease> allLeases = new List <DocumentServiceLease>();
allLeases.AddRange(Enumerable.Range(1, 4).Select(index => this.CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 3).Select(index => this.CreateLease(ownerSelf, "B" + index.ToString())));
List <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.IsTrue(leasesToTake.Count == 0);
}
public void CalculateLeasesToTake_MinPartitionsSet_ReturnsMinCountOfPartitions()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy(minPartitionCount: 7);
List <DocumentServiceLease> allLeases1 = new List <DocumentServiceLease>();
allLeases1.Add(this.CreateLease(owner1, "0"));
allLeases1.AddRange(Enumerable.Range(1, 10).Select(index => this.CreateExpiredLease(owner1, index.ToString())));
List <DocumentServiceLease> allLeases = allLeases1;
List <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.AreEqual(7, leasesToTake.Count);
}
public void CalculateLeasesToTake_NeedTwoAndOtherOwnersEqualThanTargetCount_ReturnsLease()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new List <ILease>();
allLeases.AddRange(Enumerable.Range(1, 10).Select(index => CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 10).Select(index => CreateLease(owner2, "B" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 8).Select(index => CreateLease(ownerSelf, "C" + index.ToString())));
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.Single(leasesToTake);
}
public void CalculateLeasesToTake_OtherOwnerGreaterThanTargetCount_ReturnsLease()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new List <ILease>();
allLeases.AddRange(Enumerable.Range(1, 4).Select(index => CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 2).Select(index => CreateLease(ownerSelf, "B" + index.ToString())));
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
ILease stolenLease = Assert.Single(leasesToTake);
Assert.StartsWith("A", stolenLease.PartitionId);
}
public void CalculateLeasesToTake_TwoOwners_ReturnsStolenFromLargerOwner()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new List <ILease>();
allLeases.AddRange(Enumerable.Range(1, 5).Select(index => CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 10).Select(index => CreateLease(owner2, "B" + index.ToString())));
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
ILease stolenLease = Assert.Single(leasesToTake);
Assert.StartsWith("B", stolenLease.PartitionId);
}
public void CalculateLeasesToTake_MaxPartitionsSet_ReturnsMaxCountOfPartitions()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy(maxPartitionCount: 3);
var allLeases1 = new List <ILease>();
allLeases1.Add(CreateLease(owner1, "0"));
allLeases1.AddRange(Enumerable.Range(1, 10).Select(index => CreateExpiredLease(owner1, index.ToString())));
var allLeases = allLeases1;
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.Equal(3, leasesToTake.Count);
}
public void CalculateLeasesToTake_TwoOwners_ReturnsLeaseWithStealReason()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases = new List <ILease>();
allLeases.AddRange(Enumerable.Range(1, 5).Select(index => CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 10).Select(index => CreateLease(owner2, "B" + index.ToString())));
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
ILease stolenLease = Assert.Single(leasesToTake);
AssertAcquireReason(stolenLease, LeaseAcquireReason.Steal);
}
public void CalculateLeasesToTake_TwoOwners_ReturnsStolenFromLargerOwner()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
List <DocumentServiceLease> allLeases = new List <DocumentServiceLease>();
allLeases.AddRange(Enumerable.Range(1, 5).Select(index => this.CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 10).Select(index => this.CreateLease(owner2, "B" + index.ToString())));
List <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.IsTrue(leasesToTake.Count == 1);
Assert.IsTrue(leasesToTake.First().CurrentLeaseToken.StartsWith("B"));
}
public void CalculateLeasesToTake_OtherOwnerGreaterThanTargetCount_ReturnsLease()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
List <DocumentServiceLease> allLeases = new List <DocumentServiceLease>();
allLeases.AddRange(Enumerable.Range(1, 4).Select(index => this.CreateLease(owner1, "A" + index.ToString())));
allLeases.AddRange(Enumerable.Range(1, 2).Select(index => this.CreateLease(ownerSelf, "B" + index.ToString())));
List <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.IsTrue(leasesToTake.Count == 1);
Assert.IsTrue(leasesToTake.First().CurrentLeaseToken.StartsWith("A"));
}
public void CalculateLeasesToTake_ExpiredAndOtherSingleOwner_ReturnsHalfOfExpiredRoundedUp()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
var allLeases1 = new List <ILease>();
allLeases1.Add(CreateLease(owner1, "0"));
allLeases1.AddRange(Enumerable.Range(1, 10).Select(index => CreateExpiredLease(owner1, index.ToString())));
var allLeases = allLeases1;
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.Equal(6, leasesToTake.Count);
}
public void CalculateLeasesToTake_ExpiredAndOtherOwner_ReturnsExpiredOnly()
{
EqualPartitionsBalancingStrategy strategy = this.CreateStrategy();
DocumentServiceLease expiredLease = this.CreateExpiredLease(owner1, "4");
HashSet <DocumentServiceLease> allLeases = new HashSet <DocumentServiceLease>
{
this.CreateLease(owner1, "1"),
this.CreateLease(owner1, "2"),
this.CreateLease(owner1, "3"),
expiredLease
};
List <DocumentServiceLease> leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.IsTrue(leasesToTake.Count == 1);
CollectionAssert.Contains(leasesToTake, expiredLease);
}
public void CalculateLeasesToTake_ExpiredAndOtherOwner_ReturnsExpiredOnly()
{
EqualPartitionsBalancingStrategy strategy = CreateStrategy();
ILease expiredLease = CreateExpiredLease(owner1, "4");
var allLeases = new HashSet <ILease>
{
CreateLease(owner1, "1"),
CreateLease(owner1, "2"),
CreateLease(owner1, "3"),
expiredLease
};
var leasesToTake = strategy.SelectLeasesToTake(allLeases).ToList();
Assert.Single(leasesToTake);
Assert.Contains(expiredLease, leasesToTake);
}