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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
using System;
using System.Reactive;
using System.Threading;
using Microsoft.Reactive.Testing;
using Microsoft.VisualStudio.TestTools.UnitTesting;
namespace ReactiveTests.Tests
{
[TestClass]
public class NotificationTest : ReactiveTest
{
#region ToObservable
[TestMethod]
public void ToObservable_ArgumentChecking()
{
ReactiveAssert.Throws<ArgumentNullException>(() => Notification.CreateOnNext<int>(1).ToObservable(null));
}
[TestMethod]
public void ToObservable_Empty()
{
var scheduler = new TestScheduler();
var res = scheduler.Start(() =>
Notification.CreateOnCompleted<int>().ToObservable(scheduler)
);
res.Messages.AssertEqual(
OnCompleted<int>(201)
);
}
[TestMethod]
public void ToObservable_Return()
{
var scheduler = new TestScheduler();
var res = scheduler.Start(() =>
Notification.CreateOnNext<int>(42).ToObservable(scheduler)
);
res.Messages.AssertEqual(
OnNext<int>(201, 42),
OnCompleted<int>(201)
);
}
[TestMethod]
public void ToObservable_Throw()
{
var ex = new Exception();
var scheduler = new TestScheduler();
var res = scheduler.Start(() =>
Notification.CreateOnError<int>(ex).ToObservable(scheduler)
);
res.Messages.AssertEqual(
OnError<int>(201, ex)
);
}
[TestMethod]
public void ToObservable_CurrentThread()
{
var evt = new ManualResetEvent(false);
Notification.CreateOnCompleted<int>().ToObservable().Subscribe(_ => { }, () =>
{
evt.Set();
});
evt.WaitOne();
}
#endregion
[TestMethod]
public void Notifications_Equality()
{
var n = Notification.CreateOnNext(42);
var e = Notification.CreateOnError<int>(new Exception());
var c = Notification.CreateOnCompleted<int>();
var n1 = n; var n2 = n;
var e1 = e; var e2 = e;
var c1 = c; var c2 = c;
Assert.IsTrue(n1 == n2);
Assert.IsTrue(e1 == e2);
Assert.IsTrue(c1 == c2);
Assert.IsTrue(n1.Equals(n2));
Assert.IsTrue(e1.Equals(e2));
Assert.IsTrue(c1.Equals(c2));
}
[TestMethod]
public void OnNext_CtorAndProps()
{
var n = Notification.CreateOnNext<int>(42);
Assert.AreEqual(NotificationKind.OnNext, n.Kind);
Assert.IsTrue(n.HasValue);
Assert.AreEqual(42, n.Value);
Assert.IsNull(n.Exception);
}
[TestMethod]
public void OnNext_Equality()
{
var n1 = Notification.CreateOnNext<int>(42);
var n2 = Notification.CreateOnNext<int>(42);
var n3 = Notification.CreateOnNext<int>(24);
var n4 = Notification.CreateOnCompleted<int>();
Assert.IsTrue(n1.Equals(n1));
Assert.IsTrue(n1.Equals(n2));
Assert.IsTrue(n2.Equals(n1));
Assert.IsFalse(n1.Equals(null));
Assert.IsFalse(n1.Equals(""));
Assert.IsFalse(n1.Equals(n3));
Assert.IsFalse(n3.Equals(n1));
Assert.IsFalse(n1.Equals(n4));
Assert.IsFalse(n4.Equals(n1));
Assert.IsTrue(n1 == n2);
Assert.IsTrue(n2 == n1);
Assert.IsFalse(n1 == null);
Assert.IsFalse(null == n1);
Assert.IsTrue(!(n1 != n2));
Assert.IsTrue(!(n2 != n1));
Assert.IsFalse(!(n1 != null));
Assert.IsFalse(!(null != n1));
}
[TestMethod]
public void OnNext_GetHashCode()
{
var n1 = Notification.CreateOnNext<int>(42);
var n2 = Notification.CreateOnNext<int>(42);
Assert.AreNotEqual(0, n1.GetHashCode());
Assert.AreEqual(n1.GetHashCode(), n2.GetHashCode());
}
[TestMethod]
public void OnNext_ToString()
{
var n1 = Notification.CreateOnNext<int>(42);
Assert.IsTrue(n1.ToString().Contains("OnNext"));
Assert.IsTrue(n1.ToString().Contains(42.ToString()));
}
[TestMethod]
public void OnNext_AcceptObserver()
{
var con = new CheckOnNextObserver();
var n1 = Notification.CreateOnNext<int>(42);
n1.Accept(con);
Assert.AreEqual(42, con.Value);
}
class CheckOnNextObserver : IObserver<int>
{
public void OnNext(int value)
{
Value = value;
}
public int Value { get; private set; }
public void OnError(Exception exception)
{
throw new NotImplementedException();
}
public void OnCompleted()
{
throw new NotImplementedException();
}
}
[TestMethod]
public void OnNext_AcceptObserverWithResult()
{
var n1 = Notification.CreateOnNext<int>(42);
var res = n1.Accept(new AcceptObserver(x => "OK", _ => { Assert.Fail(); return null; }, () => { Assert.Fail(); return null; }));
Assert.AreEqual("OK", res);
}
[TestMethod]
public void OnNext_AcceptObserverWithResult_Null()
{
var n1 = Notification.CreateOnNext<int>(42);
ReactiveAssert.Throws<ArgumentNullException>(() => n1.Accept(default(IObserver<int, string>)));
}
[TestMethod]
public void OnNext_AcceptAction()
{
var obs = false;
var n1 = Notification.CreateOnNext<int>(42);
n1.Accept(x => { obs = true; }, _ => { Assert.Fail(); }, () => { Assert.Fail(); });
Assert.IsTrue(obs);
}
[TestMethod]
public void OnNext_Accept_ArgumentChecking()
{
var n = Notification.CreateOnNext<int>(42);
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(default(IObserver<int>)));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(default(Action<int>), ex => { }, () => { }));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(x => { }, default(Action<Exception>), () => { }));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(x => { }, ex => { }, default(Action)));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(default(Func<int, string>), ex => "", () => ""));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(x => "", default(Func<Exception, string>), () => ""));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(x => "", ex => "", default(Func<string>)));
}
[TestMethod]
public void OnNext_AcceptActionWithResult()
{
var n1 = Notification.CreateOnNext<int>(42);
var res = n1.Accept(x => "OK", _ => { Assert.Fail(); return null; }, () => { Assert.Fail(); return null; });
Assert.AreEqual("OK", res);
}
[TestMethod, ExpectedException(typeof(ArgumentNullException))]
public void OnError_CtorNull()
{
Notification.CreateOnError<int>(null);
}
[TestMethod]
public void OnError_Accept_ArgumentChecking()
{
var n = Notification.CreateOnError<int>(new Exception());
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(default(IObserver<int>)));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(default(Action<int>), ex => { }, () => { }));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(x => { }, default(Action<Exception>), () => { }));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(x => { }, ex => { }, default(Action)));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(default(Func<int, string>), ex => "", () => ""));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(x => "", default(Func<Exception, string>), () => ""));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(x => "", ex => "", default(Func<string>)));
}
[TestMethod]
public void OnError_CtorAndProps()
{
var e = new Exception();
var n = Notification.CreateOnError<int>(e);
Assert.AreEqual(NotificationKind.OnError, n.Kind);
Assert.IsFalse(n.HasValue);
Assert.AreSame(e, n.Exception);
try
{
var x = n.Value;
Assert.Fail();
}
catch (Exception _e)
{
Assert.AreSame(e, _e);
}
}
[TestMethod]
public void OnError_Equality()
{
var ex1 = new Exception();
var ex2 = new Exception();
var n1 = Notification.CreateOnError<int>(ex1);
var n2 = Notification.CreateOnError<int>(ex1);
var n3 = Notification.CreateOnError<int>(ex2);
var n4 = Notification.CreateOnCompleted<int>();
Assert.IsTrue(n1.Equals(n1));
Assert.IsTrue(n1.Equals(n2));
Assert.IsTrue(n2.Equals(n1));
Assert.IsFalse(n1.Equals(null));
Assert.IsFalse(n1.Equals(""));
Assert.IsFalse(n1.Equals(n3));
Assert.IsFalse(n3.Equals(n1));
Assert.IsFalse(n1.Equals(n4));
Assert.IsFalse(n4.Equals(n1));
Assert.IsTrue(n1 == n2);
Assert.IsTrue(n2 == n1);
Assert.IsFalse(n1 == null);
Assert.IsFalse(null == n1);
Assert.IsTrue(!(n1 != n2));
Assert.IsTrue(!(n2 != n1));
Assert.IsFalse(!(n1 != null));
Assert.IsFalse(!(null != n1));
}
[TestMethod]
public void OnError_GetHashCode()
{
var ex = new Exception();
var n1 = Notification.CreateOnError<int>(ex);
var n2 = Notification.CreateOnError<int>(ex);
Assert.AreNotEqual(0, n1.GetHashCode());
Assert.AreEqual(n1.GetHashCode(), n2.GetHashCode());
}
[TestMethod]
public void OnError_ToString()
{
var ex = new Exception();
var n1 = Notification.CreateOnError<int>(ex);
Assert.IsTrue(n1.ToString().Contains("OnError"));
Assert.IsTrue(n1.ToString().Contains(ex.GetType().Name)); // CHECK, no message?
}
[TestMethod]
public void OnError_AcceptObserver()
{
var ex = new Exception();
var obs = new CheckOnErrorObserver();
var n1 = Notification.CreateOnError<int>(ex);
n1.Accept(obs);
Assert.AreSame(ex, obs.Error);
}
class CheckOnErrorObserver : IObserver<int>
{
public void OnNext(int value)
{
throw new NotImplementedException();
}
public Exception Error { get; private set; }
public void OnError(Exception exception)
{
Error = exception;
}
public void OnCompleted()
{
throw new NotImplementedException();
}
}
[TestMethod]
public void OnError_AcceptObserverWithResult()
{
var ex = new Exception();
var n1 = Notification.CreateOnError<int>(ex);
var res = n1.Accept(new AcceptObserver(x => { Assert.Fail(); return null; }, _ => { Assert.AreSame(ex, _); return "OK"; }, () => { Assert.Fail(); return null; }));
Assert.AreEqual("OK", res);
}
[TestMethod]
public void OnError_AcceptObserverWithResult_Null()
{
var n1 = Notification.CreateOnError<int>(new Exception());
ReactiveAssert.Throws<ArgumentNullException>(() => n1.Accept(default(IObserver<int, string>)));
}
[TestMethod]
public void OnError_AcceptAction()
{
var ex = new Exception();
var obs = false;
var n1 = Notification.CreateOnError<int>(ex);
n1.Accept(x => { Assert.Fail(); }, _ => { obs = true; }, () => { Assert.Fail(); });
Assert.IsTrue(obs);
}
[TestMethod]
public void OnError_AcceptActionWithResult()
{
var ex = new Exception();
var n1 = Notification.CreateOnError<int>(ex);
var res = n1.Accept(x => { Assert.Fail(); return null; }, x => "OK", () => { Assert.Fail(); return null; });
Assert.AreEqual("OK", res);
}
[TestMethod]
public void OnCompleted_CtorAndProps()
{
var n = Notification.CreateOnCompleted<int>();
Assert.AreEqual(NotificationKind.OnCompleted, n.Kind);
Assert.IsFalse(n.HasValue);
Assert.IsNull(n.Exception);
var ok = false;
try
{
var x = n.Value;
Assert.Fail();
}
catch (InvalidOperationException)
{
ok = true;
}
Assert.IsTrue(ok);
}
[TestMethod]
public void OnCompleted_Accept_ArgumentChecking()
{
var n = Notification.CreateOnCompleted<int>();
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(default(IObserver<int>)));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(default(Action<int>), ex => { }, () => { }));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(x => { }, default(Action<Exception>), () => { }));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept(x => { }, ex => { }, default(Action)));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(default(Func<int, string>), ex => "", () => ""));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(x => "", default(Func<Exception, string>), () => ""));
ReactiveAssert.Throws<ArgumentNullException>(() => n.Accept<string>(x => "", ex => "", default(Func<string>)));
}
[TestMethod]
public void OnCompleted_Equality()
{
var n1 = Notification.CreateOnCompleted<int>();
var n2 = Notification.CreateOnCompleted<int>();
var n3 = Notification.CreateOnNext<int>(2);
Assert.IsTrue(n1.Equals(n1));
Assert.IsTrue(n1.Equals(n2));
Assert.IsTrue(n2.Equals(n1));
Assert.IsFalse(n1.Equals(null));
Assert.IsFalse(n1.Equals(""));
Assert.IsFalse(n1.Equals(n3));
Assert.IsFalse(n3.Equals(n1));
Assert.IsTrue(n1 == n2);
Assert.IsTrue(n2 == n1);
Assert.IsFalse(n1 == null);
Assert.IsFalse(null == n1);
Assert.IsTrue(!(n1 != n2));
Assert.IsTrue(!(n2 != n1));
Assert.IsFalse(!(n1 != null));
Assert.IsFalse(!(null != n1));
}
[TestMethod]
public void OnCompleted_GetHashCode()
{
var n1 = Notification.CreateOnCompleted<int>();
var n2 = Notification.CreateOnCompleted<int>();
Assert.AreNotEqual(0, n1.GetHashCode());
Assert.AreEqual(n1.GetHashCode(), n2.GetHashCode());
}
[TestMethod]
public void OnCompleted_ToString()
{
var n1 = Notification.CreateOnCompleted<int>();
Assert.IsTrue(n1.ToString().Contains("OnCompleted"));
}
[TestMethod]
public void OnCompleted_AcceptObserver()
{
var obs = new CheckOnCompletedObserver();
var n1 = Notification.CreateOnCompleted<int>();
n1.Accept(obs);
Assert.IsTrue(obs.Completed);
}
class CheckOnCompletedObserver : IObserver<int>
{
public void OnNext(int value)
{
throw new NotImplementedException();
}
public bool Completed { get; private set; }
public void OnError(Exception exception)
{
throw new NotImplementedException();
}
public void OnCompleted()
{
Completed = true;
}
}
[TestMethod]
public void OnCompleted_AcceptObserverWithResult()
{
var n1 = Notification.CreateOnCompleted<int>();
var res = n1.Accept(new AcceptObserver(x => { Assert.Fail(); return null; }, _ => { Assert.Fail(); return null; }, () => "OK"));
Assert.AreEqual("OK", res);
}
[TestMethod]
public void OnCompleted_AcceptObserverWithResult_Null()
{
var n1 = Notification.CreateOnCompleted<int>();
ReactiveAssert.Throws<ArgumentNullException>(() => n1.Accept(default(IObserver<int, string>)));
}
[TestMethod]
public void OnCompleted_AcceptAction()
{
var obs = false;
var n1 = Notification.CreateOnCompleted<int>();
n1.Accept(x => { Assert.Fail(); }, _ => { Assert.Fail(); }, () => { obs = true; });
Assert.IsTrue(obs);
}
[TestMethod]
public void OnCompleted_AcceptActionWithResult()
{
var n1 = Notification.CreateOnCompleted<int>();
var res = n1.Accept(x => { Assert.Fail(); return null; }, _ => { Assert.Fail(); return null; }, () => "OK");
Assert.AreEqual("OK", res);
}
class AcceptObserver : IObserver<int, string>
{
private Func<int, string> _onNext;
private Func<Exception, string> _onError;
private Func<string> _onCompleted;
public AcceptObserver(Func<int, string> onNext, Func<Exception, string> onError, Func<string> onCompleted)
{
_onNext = onNext;
_onError = onError;
_onCompleted = onCompleted;
}
public string OnNext(int value)
{
return _onNext(value);
}
public string OnError(Exception exception)
{
return _onError(exception);
}
public string OnCompleted()
{
return _onCompleted();
}
}
}
}
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