[Test]
public void RegisterTypeTwice()
{
    resolver.Register(typeof(A));
    resolver.Register(typeof(A));
}

[Test]
public void RegisterTypeTwice()
{
    resolver.Register(typeof(A));
    resolver.Register(typeof(A));
}

[Test]
public void RegisterSingletonTypeTwice()
{
    resolver.RegisterSingleton(typeof(A));
    resolver.RegisterSingleton(typeof(A));
}

[Test]
public void RegisterSingletonTypeTwice()
{
    resolver.RegisterSingleton(typeof(A));
    resolver.RegisterSingleton(typeof(A));
}

[Test]
public void RegisterAfterInitializationThrows()
{
    Assert.IsFalse(resolver.IsInitialized);
    resolver.Register(typeof(A));
    resolver.Resolve<A>();
    Assert.IsTrue(resolver.IsInitialized);
    Assert.Throws<Resolver.UnableToRegisterMoreTypesAppAlreadyStarted>(
        () => resolver.Register(typeof(B)));
    Assert.Throws<Resolver.UnableToRegisterMoreTypesAppAlreadyStarted>(
        () => resolver.RegisterSingleton(typeof(C)));
}

[Test]
public void RegisterAfterInitializationThrows()
{
    Assert.IsFalse(resolver.IsInitialized);
    resolver.Register(typeof(A));
    resolver.Resolve<A>();
    Assert.IsTrue(resolver.IsInitialized);
    Assert.Throws<Resolver.UnableToRegisterMoreTypesAppAlreadyStarted>(
        () => resolver.Register(typeof(B)));
    Assert.Throws<Resolver.UnableToRegisterMoreTypesAppAlreadyStarted>(
        () => resolver.RegisterSingleton(typeof(C)));
}

[Test]
public void TryResolveWithCustomParameter()
{
    resolver.Register(typeof(DummyClassWithString));
    Assert.DoesNotThrow(() => resolver.Resolve(typeof(DummyClassWithString), "Huhu"));
}

[Test]
public void TryResolveWithCustomParameter()
{
    resolver.Register(typeof(DummyClassWithString));
    Assert.DoesNotThrow(() => resolver.Resolve(typeof(DummyClassWithString), "Huhu"));
}

[Test]
public void TryResolveWithInvalidParameter()
{
    resolver.Register(typeof(DummyClassWithString));
    Assert.Throws<DependencyResolutionException>(
        () => resolver.Resolve(typeof(DummyClassWithString)));
}

[Test]
public void TryResolveWithInvalidParameter()
{
    resolver.Register(typeof(DummyClassWithString));
    Assert.Throws<DependencyResolutionException>(
        () => resolver.Resolve(typeof(DummyClassWithString)));
}

[Test]
public void TryResolveWithContentCreationData()
{
    var creationData = new ImageCreationData(new Size(1));
    Assert.IsNotNull(resolver.Resolve(typeof(MockImage), creationData));
}

[Test]
public void TryResolveWithContentCreationData()
{
    var creationData = new ImageCreationData(new Size(1));
    Assert.IsNotNull(resolver.Resolve(typeof(MockImage), creationData));
}

[Test]
public void ResolveSpecialTypes()
{
    Assert.AreEqual(EntitiesRunner.Current, resolver.Resolve<EntitiesRunner>());
    Assert.AreEqual(GlobalTime.Current, resolver.Resolve<GlobalTime>());
    Assert.AreEqual(ScreenSpace.Current, resolver.Resolve<ScreenSpace>());
    Assert.AreEqual(Randomizer.Current, resolver.Resolve<Randomizer>());
}

[Test]
public void ResolveSpecialTypes()
{
    Assert.AreEqual(EntitiesRunner.Current, resolver.Resolve<EntitiesRunner>());
    Assert.AreEqual(GlobalTime.Current, resolver.Resolve<GlobalTime>());
    Assert.AreEqual(ScreenSpace.Current, resolver.Resolve<ScreenSpace>());
    Assert.AreEqual(Randomizer.Current, resolver.Resolve<Randomizer>());
}

        [Test]
        public void RegisterInstanceMultipleTimeLogsToConsole()
        {
            var previousOut = Console.Out;
            var text = new StringBuilder();
            using (StringWriter writer = new StringWriter(text))
            {
                Console.SetOut(writer);
                resolver.RegisterInstance(new A());
                resolver.RegisterInstance(new A());
#if DEBUG
                Assert.AreEqual(
                    "Warning: Type DeltaEngine.Platforms.Tests.ResolverTests+A " +
                        "already exists in alreadyRegisteredTypes" + writer.NewLine, text.ToString());
#else
                Assert.AreEqual(string.Empty, text.ToString()); 
#endif
            }
            Console.SetOut(previousOut);
        }

        [Test]
        public void RegisterInstanceMultipleTimeLogsToConsole()
        {
            var previousOut = Console.Out;
            var text = new StringBuilder();
            using (StringWriter writer = new StringWriter(text))
            {
                Console.SetOut(writer);
                resolver.RegisterInstance(new A());
                resolver.RegisterInstance(new A());
#if DEBUG
                Assert.AreEqual(
                    "Warning: Type DeltaEngine.Platforms.Tests.ResolverTests+A " +
                        "already exists in alreadyRegisteredTypes" + writer.NewLine, text.ToString());
#else
                Assert.AreEqual(string.Empty, text.ToString()); 
#endif
            }
            Console.SetOut(previousOut);
        }