public async Task Should_aquire_on_renew_when_expired()
{
var nowUtc = DateTime.UtcNow;
SqlServerSemaphore sema = new SqlServerSemaphore(ConnectionString, _semaphoreName, 2, 1);
var owner1Res = await sema.TryAcquire(_ownerId1);
owner1Res.ShouldBeTrue();
await Task.Delay(2500);
var semaInfo = await sema.GetSemaphoreInfo();
var owners = sema.Deserialize(semaInfo.OwnersJson);
var owner1 = owners.Owners.Single(x => x.OwnerId == _ownerId1);
owner1.ExpiresAtUtc.ShouldBeLessThan(DateTime.UtcNow);
var renewNow = DateTime.UtcNow;
var owner1RenewRes = await sema.TryRenew(_ownerId1);
owner1RenewRes.ShouldBeTrue();
semaInfo = await sema.GetSemaphoreInfo();
owners = sema.Deserialize(semaInfo.OwnersJson);
owner1 = owners.Owners.Single(x => x.OwnerId == _ownerId1);
owner1.ExpiresAtUtc.ShouldBeGreaterThan(renewNow);
}
public async Task Should_aquire_on_renew_when_not_owner()
{
var nowUtc = DateTime.UtcNow;
SqlServerSemaphore sema = new SqlServerSemaphore(ConnectionString, _semaphoreName, 20, 1);
var owner1Res = await sema.TryRenew(_ownerId1);
owner1Res.ShouldBeTrue();
var semaInfo = await sema.GetSemaphoreInfo();
var owners = sema.Deserialize(semaInfo.OwnersJson);
owners.Owners.Count.ShouldBe(1);
var owner1 = owners.Owners.Single(x => x.OwnerId == _ownerId1);
owner1.ExpiresAtUtc.ShouldBeGreaterThan(DateTime.UtcNow);
}
public async Task Should_renew()
{
SqlServerSemaphore sema = new SqlServerSemaphore(ConnectionString, _semaphoreName, 10, 5);
var owner1Res = await sema.TryAcquire(_ownerId1);
var owner2Res = await sema.TryAcquire(_ownerId2);
var owner3Res = await sema.TryAcquire(_ownerId3);
var owner4Res = await sema.TryAcquire(_ownerId4);
var owner5Res = await sema.TryAcquire(_ownerId5);
var owner6Res = await sema.TryAcquire(_ownerId6);
owner1Res.ShouldBeTrue();
owner2Res.ShouldBeTrue();
owner3Res.ShouldBeTrue();
owner4Res.ShouldBeTrue();
owner5Res.ShouldBeTrue();
owner6Res.ShouldBeFalse();
await Task.Delay(5000);
var nowUtc = DateTime.UtcNow;
var owner1RenewRes = await sema.TryRenew(_ownerId1);
var owner2RenewRes = await sema.TryRenew(_ownerId2);
var owner3RenewRes = await sema.TryRenew(_ownerId3);
var owner4RenewRes = await sema.TryRenew(_ownerId4);
var owner5RenewRes = await sema.TryRenew(_ownerId5);
var owner6RenewRes = await sema.TryRenew(_ownerId6);
owner1RenewRes.ShouldBeTrue();
owner2RenewRes.ShouldBeTrue();
owner3RenewRes.ShouldBeTrue();
owner4RenewRes.ShouldBeTrue();
owner5RenewRes.ShouldBeTrue();
owner6RenewRes.ShouldBeFalse();
var semaInfo = await sema.GetSemaphoreInfo();
var owners = sema.Deserialize(semaInfo.OwnersJson);
owners.Owners.Count().ShouldBe(5);
var owner1 = owners.Owners.Single(x => x.OwnerId == _ownerId1);
owner1.ExpiresAtUtc.ShouldBeInRange(nowUtc.AddSeconds(9), nowUtc.AddSeconds(13));
var owner2 = owners.Owners.Single(x => x.OwnerId == _ownerId2);
owner2.ExpiresAtUtc.ShouldBeInRange(nowUtc.AddSeconds(9), nowUtc.AddSeconds(13));
var owner3 = owners.Owners.Single(x => x.OwnerId == _ownerId3);
owner3.ExpiresAtUtc.ShouldBeInRange(nowUtc.AddSeconds(9), nowUtc.AddSeconds(13));
var owner4 = owners.Owners.Single(x => x.OwnerId == _ownerId4);
owner4.ExpiresAtUtc.ShouldBeInRange(nowUtc.AddSeconds(9), nowUtc.AddSeconds(13));
var owner5 = owners.Owners.Single(x => x.OwnerId == _ownerId5);
owner5.ExpiresAtUtc.ShouldBeInRange(nowUtc.AddSeconds(9), nowUtc.AddSeconds(13));
}