public async Task TestEdgeCase_InsertUpdateDomainRace()
{
var updateSessionTable = new UpdateSessionTable(EmulatorConnectionString, Ttl);
var updateSessionTableStub = ReplaceExecuteTransactionImplementation(updateSessionTable,
async transaction =>
{
Assert.True(await _updateSessionManager.TryStartUpdateSession());
return(await updateSessionTable.TryExecuteTransaction(transaction));
});
var updateSessionManager = new AzureTableUpdateSessionManager(updateSessionTableStub, "superClusterId", "instanceId2", "2");
Assert.False(await updateSessionManager.TryStartUpdateSession());
}
public async Task TestEdgeCase_InstanceEnlists_InsertUpdateDomain_Race()
{
var updateSessionTable = new UpdateSessionTable(EmulatorConnectionString, ttl: TimeSpan.FromMinutes(15));
var updateSessionTableStub = ReplaceExecuteTransactionImplementation(updateSessionTable,
async transaction =>
{
// enlist another instance right before changing the update domain
await _updateSessionManager.TryStartUpdateSession("app1");
return(await updateSessionTable.TryExecuteTransaction(transaction));
});
var updateSessionManager = new AzureTableUpdateSessionManager(updateSessionTableStub, "clusterId", "instanceId2", "2");
Assert.False(await updateSessionManager.TryStartUpdateSession("app1"));
}
public async Task TestEdgeCase_InstanceEnlists_SetUpdateDomain_Race()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession());
await _updateSessionManager.EndUpdateSession();
IUpdateSessionTable updateSessionTable = new UpdateSessionTable(EmulatorConnectionString, Ttl);
var updateSessionTableStub = ReplaceExecuteTransactionImplementation(updateSessionTable,
async transaction =>
{
// enlist another instance right before changing the update domain
await _updateSessionManager.TryStartUpdateSession();
return(await updateSessionTable.TryExecuteTransaction(transaction));
});
var updateSessionManager = new AzureTableUpdateSessionManager(updateSessionTableStub, "superClusterId", "instanceId2", "2");
Assert.False(await updateSessionManager.TryStartUpdateSession());
}
public async Task TestEdgeCase_SetUpdateDomainRace()
{
Assert.True(await _updateSessionManager.TryStartUpdateSession("app1"));
await _updateSessionManager.EndUpdateSession("app1");
var updateSessionTable = new UpdateSessionTable(EmulatorConnectionString, ttl: TimeSpan.FromMinutes(15));
var updateSessionTableStub = ReplaceExecuteTransactionImplementation(updateSessionTable,
async transaction =>
{
// set update domain 3 right before update domain 2 is being set
var updateSession =
new AzureTableUpdateSessionManager(updateSessionTable, "clusterId", "instanceId3", "3");
Assert.True(await updateSession.TryStartUpdateSession("app1"));
return(await updateSessionTable.TryExecuteTransaction(transaction));
});
var updateSessionManager = new AzureTableUpdateSessionManager(updateSessionTableStub, "clusterId", "instanceId2", "2");
Assert.False(await updateSessionManager.TryStartUpdateSession("app1"));
}
private static IUpdateSessionManager CreateUpdateSessionManager(string superClusterId, string instanceId, string updateDomain)
{
var updateSessionTable = new UpdateSessionTable(EmulatorConnectionString, ttl: TimeSpan.FromMinutes(1));
return(new AzureTableUpdateSessionManager(updateSessionTable, superClusterId, instanceId, updateDomain));
}