public void TestRubTaskInNotLeaderState()
{
string lockId = "lockId";
// ReSharper disable once RedundantArgumentDefaultValue
// ReSharper disable once RedundantArgumentNameForLiteralExpression
var lockerMock = new LockerMock(isLeader: false, id: lockId, keeperId: LeaderAwareTaskRunner.GenerateLockKeeperId());
LeaderAwareTaskRunner runner = new LeaderAwareTaskRunner(lockerMock, lockId);
runner.RunTaskOnLeader(() => Assert.True(false));
}
public void TestRubTaskInNotLeaderState()
{
string lockId = "lockId";
// ReSharper disable once RedundantArgumentDefaultValue
// ReSharper disable once RedundantArgumentNameForLiteralExpression
var lockerMock = new LockerMock(isLeader: false, id: lockId, keeperId: LeaderAwareTaskRunner.GenerateLockKeeperId());
LeaderAwareTaskRunner runner = new LeaderAwareTaskRunner(lockerMock, lockId);
runner.RunTaskOnLeader(() => Assert.True(false));
}
public void TestBecameALeader()
{
string lockId = "lockId";
int i = 0;
// ReSharper disable once RedundantArgumentDefaultValue
// ReSharper disable once RedundantArgumentNameForLiteralExpression
var lockerMock = new LockerMock(isLeader: true, id: lockId, keeperId: LeaderAwareTaskRunner.GenerateLockKeeperId());
LeaderAwareTaskRunner runner = new LeaderAwareTaskRunner(lockerMock, lockId, 0);
runner.RunTaskOnLeader(() => i++);
Thread.Sleep(200);
lockerMock.IsLeader = false;
runner.RunTaskOnLeader(() => i++);
Assert.AreEqual(1, i);
Thread.Sleep(200);
lockerMock.IsLeader = true;
runner.RunTaskOnLeader(() => i++);
Assert.AreEqual(2, i);
}
public void TestBecameALeader()
{
string lockId = "lockId";
int i = 0;
// ReSharper disable once RedundantArgumentDefaultValue
// ReSharper disable once RedundantArgumentNameForLiteralExpression
var lockerMock = new LockerMock(isLeader: true, id: lockId, keeperId: LeaderAwareTaskRunner.GenerateLockKeeperId());
LeaderAwareTaskRunner runner = new LeaderAwareTaskRunner(lockerMock, lockId, 0);
runner.RunTaskOnLeader(() => i++);
Thread.Sleep(200);
lockerMock.IsLeader = false;
runner.RunTaskOnLeader(() => i++);
Assert.AreEqual(1, i);
Thread.Sleep(200);
lockerMock.IsLeader = true;
runner.RunTaskOnLeader(() => i++);
Assert.AreEqual(2, i);
}
static void Main(string[] args)
{
string lockId = "task1";
string connectionString = "mongodb://localhost/LeaderElectionTest";
using (var locker = new MongoDbPessimisticLocker(connectionString))
{
var leaderAwareTaskRunner = new LeaderAwareTaskRunner(locker, lockId);
var taskRunner = new TaskRunner(500, () =>
{
leaderAwareTaskRunner.RunTaskOnLeader(() =>
{
Console.WriteLine("task executed on a leader");
});
});
taskRunner.Start();
Console.ReadLine();
taskRunner.Stop();
}
}
