How to use EventContainer class of Telerik.JustMock.Tests package

Best JustMockLite code snippet using Telerik.JustMock.Tests.EventContainer

MiscFixture.cs

Source:MiscFixture.cs Github

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...165		public void ShouldAssertInvocationFromInsideAMockedEvent()166		{167			var @interface = Mock.Create<IInterface>();168			Mock.Arrange(() => @interface.TheFunc()).Returns(true);169			var target = new EventContainer(@interface);170			Mock.Raise(() => @interface.TheEvent += null, EventArgs.Empty);171			Assert.True(target.Result);172		}173		[TestMethod, TestCategory("Lite")]174		public void ShouldAssertRaiseEventAfterAMethodCallFromDifferentMock()175		{176			var @interface = Mock.Create<IInterface>();177			var @extended = Mock.Create<IInterfaceExtended>();178			var target = new EventContainer(@interface);179			Mock.Arrange(() => @interface.TheFunc()).Returns(true);180			Mock.Raise(() => @interface.TheEvent += null, EventArgs.Empty);181			@extended.TheFunc();182			Mock.Raise(() => @interface.TheEvent += null, EventArgs.Empty);183			Assert.True(target.NumberOfTimesCalled == 2);184		}185		[TestMethod, TestCategory("Lite"),]186		public void ShouldBeToSubscribeEventForStrictMock()187		{188			new EventContainer(Mock.Create<IInterface>(Behavior.Strict));189		}190		[TestMethod, TestCategory("Lite")]191		public void ShouldNotThrowExceptionForDecimalTypeThatHasMultipleImplicitMethods()192		{193			var foo = Mock.Create<TestBase>();194			decimal value = 1;195			Mock.Arrange(() => foo.SetValue(value)).MustBeCalled();196			foo.SetValue(value);197			Mock.Assert(foo);198		}199		public abstract class TestBase200		{201			public virtual decimal Value { get; set; }202			public virtual void SetValue(decimal newValue)203			{204				Value = newValue;205			}206		}207		public class EventContainer208		{209			public bool Result = false;210			private IInterface @interface = null;211			public int NumberOfTimesCalled { get; set; }212			public EventContainer(IInterface i)213			{214				this.@interface = i;215				this.@interface.TheEvent += new EventHandler(i_TheEvent);216			}217			void i_TheEvent(object sender, EventArgs e)218			{219				this.Result = this.@interface.TheFunc();220				this.NumberOfTimesCalled++;221			}222		}223		public interface IInterface224		{225			event EventHandler TheEvent;226			bool TheFunc();...

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EventContainer

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Telerik.JustMock;7using Telerik.JustMock.Helpers;8using Telerik.JustMock.Tests;9using Telerik.JustMock.Tests.Model;10using Telerik.JustMock.Tests.NonPublic;11{12    {13        public event EventHandler PublicEvent;14        internal event EventHandler InternalEvent;15        protected event EventHandler ProtectedEvent;16        protected internal event EventHandler ProtectedInternalEvent;17        private event EventHandler PrivateEvent;18    }19}20using System;21using System.Collections.Generic;22using System.Linq;23using System.Text;24using System.Threading.Tasks;25using Telerik.JustMock;26using Telerik.JustMock.Helpers;27using Telerik.JustMock.Tests;28using Telerik.JustMock.Tests.Model;29using Telerik.JustMock.Tests.NonPublic;30{31    {32        public event EventHandler PublicEvent;33        internal event EventHandler InternalEvent;34        protected event EventHandler ProtectedEvent;35        protected internal event EventHandler ProtectedInternalEvent;36        private event EventHandler PrivateEvent;37    }38}39using System;40using System.Collections.Generic;41using System.Linq;42using System.Text;43using System.Threading.Tasks;44using Telerik.JustMock;45using Telerik.JustMock.Helpers;46using Telerik.JustMock.Tests;47using Telerik.JustMock.Tests.Model;48using Telerik.JustMock.Tests.NonPublic;49{50    {51        public event EventHandler PublicEvent;52        internal event EventHandler InternalEvent;53        protected event EventHandler ProtectedEvent;54        protected internal event EventHandler ProtectedInternalEvent;55        private event EventHandler PrivateEvent;56    }57}58using System;59using System.Collections.Generic;60using System.Linq;61using System.Text;62using System.Threading.Tasks;63using Telerik.JustMock;64using Telerik.JustMock.Helpers;65using Telerik.JustMock.Tests;66using Telerik.JustMock.Tests.Model;67using Telerik.JustMock.Tests.NonPublic;68{69    {70        public event EventHandler PublicEvent;

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EventContainer

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Telerik.JustMock;7using Telerik.JustMock.Tests;8using Telerik.JustMock.Tests.Model;9using Telerik.JustMock.Tests.NonPublic;10using Telerik.JustMock.Tests.Public;11using Telerik.JustMock.Tests.Util;12using Telerik.JustMock.Tests.Verification;13using Telerik.JustMock.Tests.Verification.Exceptions;14using Telerik.JustMock.Tests.Verification.Exceptions.Internal;15using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples;16using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other;17using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other;18using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other.Other;19using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other.Other.Other;20using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other.Other.Other.Other;21using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other.Other.Other.Other.Other;22using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other.Other.Other.Other.Other.Other;23using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other.Other.Other.Other.Other.Other.Other;24using Telerik.JustMock.Tests.Verification.Exceptions.Internal.Examples.Other.Other.Other.Other.Other.Other.Other.Other.Other;

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EventContainer

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using Telerik.JustMock;6using Telerik.JustMock.Tests;7using Telerik.JustMock.Tests.Model;8{9    {10        public event EventHandler MyEvent;11        public void RaiseMyEvent()12        {13            var handler = this.MyEvent;14            if (handler != null)15                handler(this, EventArgs.Empty);16        }17    }18}19using System;20using System.Collections.Generic;21using System.Linq;22using System.Text;23using Telerik.JustMock;24using Telerik.JustMock.Tests;25using Telerik.JustMock.Tests.Model;26{27    {28        public event EventHandler MyEvent;29        public void RaiseMyEvent()30        {31            var handler = this.MyEvent;32            if (handler != null)33                handler(this, EventArgs.Empty);34        }35    }36}37using System;38using System.Collections.Generic;39using System.Linq;40using System.Text;41using Telerik.JustMock;42using Telerik.JustMock.Tests;43using Telerik.JustMock.Tests.Model;44{45    {46        public event EventHandler MyEvent;47        public void RaiseMyEvent()48        {49            var handler = this.MyEvent;50            if (handler != null)51                handler(this, EventArgs.Empty);52        }53    }54}55using System;56using System.Collections.Generic;57using System.Linq;58using System.Text;59using Telerik.JustMock;60using Telerik.JustMock.Tests;61using Telerik.JustMock.Tests.Model;62{63    {64        public event EventHandler MyEvent;65        public void RaiseMyEvent()66        {67            var handler = this.MyEvent;68            if (handler != null)69                handler(this, EventArgs.Empty);70        }71    }72}73using System;74using System.Collections.Generic;75using System.Linq;76using System.Text;77using Telerik.JustMock;

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EventContainer

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using Telerik.JustMock;6using Telerik.JustMock.Tests;7using Telerik.JustMock.Tests.Model;8{9    {10        public event EventHandler MyEvent;11        public void RaiseMyEvent()12        {13            var handler = this.MyEvent;14            if (handler != null)15                handler(this, EventArgs.Empty);16        }17    }18}19using System;20using System.Collections.Generic;21using System.Linq;22using System.Text;23using Telerik.JustMock;24using Telerik.JustMock.Tests;25using Telerik.JustMock.Tests.Model;26{27    {28        public event EventHandler MyEvent;29        public void RaiseMyEvent()30        {31            var handler = this.MyEvent;32            if (handler != null)33                handler(this, EventArgs.Empty);34        }35    }36}37using System;38using System.Collections.Generic;39using System.Linq;40using System.Text;41using Telerik.JustMock;42using Telerik.JustMock.Tests;43using Telerik.JustMock.Tests.Model;44{45    {46        public event EventHandler MyEvent;47        public void RaiseMyEvent()48        {49            var handler = this.MyEvent;50            if (handler != null)51                handler(this, EventArgs.Empty);52        }53    }54}55using System;56using System.Collections.Generic;57using System.Linq;58using System.Text;59using Telerik.JustMock;60using Telerik.JustMock.Tests;61using Telerik.JustMock.Tests.Model;62{63    {64        public event EventHandler MyEvent;65        public void RaiseMyEvent()66        {67            var handler = this.MyEvent;68            if (handler != null)69                handler(this, EventArgs.Empty);70        }71    }72}73using System;74using System.Collections.Generic;75using System.Linq;76using System.Text;77using Telerik.JustMock;

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EventContainer

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1using Telerik.JustMock.Tests;2using Telerik.JustMock;3using System;4using System.Collections.Generic;5using System.Linq;6using System.Text;7using System.Threading.Tasks;

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EventContainer

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1using Telerik.JustMock.Tests;2{3    {4        public event EventHandler CustomEvent;5        public event EventHandler CustomEventWithArgs;6        public void RaiseCustomEvent()7        {8            if (this.CustomEvent != null)9            {10                this.CustomEvent(this, EventArgs.Empty);11            }12        }13        public void RaiseCustomEventWithArgs(EventArgs args)14        {15            if (this.CustomEventWithArgs != null)16            {17                this.CustomEventWithArgs(this, args);18            }19        }20    }21}22using Telerik.JustMock.Tests;23{24    {25        public void ShouldRaiseCustomEvent()26        {27            var eventContainer = new EventContainer();28            var eventHandler = Mock.Create<EventHandler>();29            eventContainer.CustomEvent += eventHandler;30            eventContainer.RaiseCustomEvent();31            Mock.Assert(() => eventHandler(eventContainer, EventArgs.Empty), Occurs.Once());32        }33        public void ShouldRaiseCustomEventWithArgs()34        {35            var eventContainer = new EventContainer();36            var eventHandler = Mock.Create<EventHandler>();37            eventContainer.CustomEventWithArgs += eventHandler;38            eventContainer.RaiseCustomEventWithArgs(new EventArgs());39            Mock.Assert(() => eventHandler(eventContainer, new EventArgs()), Occurs.Once());40        }41    }42}43{44    {45        public event EventHandler Event;46        public void RaiseEvent()47        {48            if (Event != null)49            {50                Event(this, EventArgs.Empty);51            }52        }53    }54}55using Telerik.JustMock.Tests;56using Telerik.JustMock;57using System;58using System.Collections.Generic;59using System.Linq;60using System.Text;61using System.Threading.Tasks;62{63    {64        public event EventHandler Event;65        public void RaiseEvent()66        {67            if (Event != null)68            {69                Event(this, EventArgs.Empty);70            }71        }72    }73}74using Telerik.JustMock.Tests;75using Telerik.JustMock;76using System;77using System.Collections.Generic;78using System.Linq;79using System.Text;80using System.Threading.Tasks;81{82    {83        public event EventHandler Event;84        public void RaiseEvent()85        {86            if (Event != null)87            {88                Event(this, EventArgs.Empty);89            }90        }91    }92}93using Telerik.JustMock.Tests;94using Telerik.JustMock;95using System;96using System.Collections.Generic;97using System.Linq;98using System.Text;99using System.Threading.Tasks;100{101    {102        public event EventHandler Event;103        public void RaiseEvent()104        {105            if (Event != null)106            {107                Event(this, EventArgs.Empty);108            }109        }110    }111}112using Telerik.JustMock.Tests;113using Telerik.JustMock;114using System;115using System.Collections.Generic;116using System.Linq;117using System.Text;118using System.Threading.Tasks;119{120    {121        public event EventHandler Event;122        public void RaiseEvent()

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EventContainer

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1using Telerik.JustMock.Tests;2{3    {4        public event EventHandler CustomEvent;5        public event EventHandler CustomEventWithArgs;6        public void RaiseCustomEvent()7        {8            if (this.CustomEvent != null)9            {10                this.CustomEvent(this, EventArgs.Empty);11            }12        }13        public void RaiseCustomEventWithArgs(EventArgs args)14        {15            if (this.CustomEventWithArgs != null)16            {17                this.CustomEventWithArgs(this, args);18            }19        }20    }21}22using Telerik.JustMock.Tests;23{24    {25        public void ShouldRaiseCustomEvent()26        {27            var eventContainer = new EventContainer();28            var eventHandler = Mock.Create<EventHandler>();29            eventContainer.CustomEvent += eventHandler;30            eventContainer.RaiseCustomEvent();31            Mock.Assert(() => eventHandler(eventContainer, EventArgs.Empty), Occurs.Once());32        }33        public void ShouldRaiseCustomEventWithArgs()34        {35            var eventContainer = new EventContainer();36            var eventHandler = Mock.Create<EventHandler>();37            eventContainer.CustomEventWithArgs += eventHandler;38            eventContainer.RaiseCustomEventWithArgs(new EventArgs());39            Mock.Assert(() => eventHandler(eventContainer, new EventArgs()), Occurs.Once());40        }41    }42}

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Telerik.JustMock;7using Telerik.JustMock.Helpers;8using Telerik.JustMock.Tests;9using Telerik.JustMock.Tests.Model;10using Telerik.JustMock.Tests.PublicAPI;11using Telerik.JustMock.Tests.Utilities;12{13    {14        public void MockEvent()15        {16            var mockEvent = Mock.Create<EventContainer>();17            Mock.Arrange(() => mockEvent.Event += null).IgnoreInstance().OccursNever();18            Mock.Arrange(() => mockEvent.Event -= null).IgnoreInstance().OccursNever();19            Mock.Arrange(() => mockEvent.Event += Arg.IsAny<Action>()).IgnoreInstance().OccursOnce();20            Mock.Arrange(() => mockEvent.Event -= Arg.IsAny<Action>()).IgnoreInstance().OccursOnce();21            mockEvent.Event += () => { };22            mockEvent.Event -= () => { };23        }24    }25}26using System;27using System.Collections.Generic;28using System.Linq;29using System.Text;30using System.Threading.Tasks;31using Telerik.JustMock;32using Telerik.JustMock.Helpers;33using Telerik.JustMock.Tests;34using Telerik.JustMock.Tests.Model;35using Telerik.JustMock.Tests.PublicAPI;36using Telerik.JustMock.Tests.Utilities;37{38    {39        public void MockEvent()40        {41            var mockEvent = Mock.Create<EventContainer>();42            Mock.Arrange(() => mockEvent.Event += null).IgnoreInstance().OccursNever();43            Mock.Arrange(() => mockEvent.Event -= null).IgnoreInstance().OccursNever();44            Mock.Arrange(() => mockEvent.Event += Arg.IsAny<Action>()).IgnoreInstance().OccursOnce();45            Mock.Arrange(() => mockEvent.Event -= Arg.IsAny<Action>()).IgnoreInstance().OccursOnce();46            mockEvent.Event += () => { };47            mockEvent.Event -= () => { };48        }49    }50}51using System;52using System.Collections.Generic;53using System.Linq;

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1using Telerik.JustMock.Tests;2{3    {4        public event EventHandler MyEvent;5        public void RaiseEvent()6        {7            MyEvent(this, EventArgs.Empty);8        }9    }10}11csc /r:"C:\Program Files (x86)\Telerik\JustMock\Bin\Telerik.JustMock.dll" /r:"C:\Program Files (x86)\Telerik\JustMock\Bin\Telerik.JustMock.Tests.dll" 1.cs 2.cs 3.cs 4.cs12using System;13{14    {15        public event EventHandler MyEvent;16        public void RaiseEvent()17        {18            MyEvent(this, EventArgs.Empty);19        }20    }21}22using System;23using System.Reflection;24{25    {26        public static void Clear()27        {28        }29    }30}31using System;32using System.Reflection;33{34    {35        public static T Create<T>()36        {37            return default(T);38        }39    }40}41using System;42{43    {44        public event EventHandler MyEvent;45        public void RaiseEvent()46        {47            MyEvent(this, EventArgs.Empty);48        }49    }50}51using System;52{53    {54        public event EventHandler MyEvent;55        public void RaiseEvent()56        {57            MyEvent(this, EventArgs.Empty);58        }59    }60}61using System;62using System.Reflection;63{64    {65        public static void Clear()66        {67        }68    }69}70using System;71using System.Reflection;72{73    {74        public static T Create<T>()75        {76            return default(T);77        }78    }79}

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1{2    public event Action MyEvent;3    public void RaiseEvent()4    {5        MyEvent();6    }7}8{9    public void Test()10    {11        var container = Mock.Create<EventContainer>();12        Mock.Arrange(() => container.MyEvent += null).IgnoreArguments().OccursOnce();13        Mock.Arrange(() => container.MyEvent -= null).IgnoreArguments().OccursOnce();14        container.RaiseEvent();15        Mock.Assert(container);16    }17}18    container.RaiseEvent()19    Mock.Assert(Mock mock)20    EventTests.Test()21The problem is that when you mock the event, you are actually mocking the field of type Action. The += and -= operators are just syntactic sugar for the standard += and -= operators for fields. So, when you mock the event, the Mocking Engine actually mocks the field. And when you try to raise the event, the Mocking Engine will try to match the invocation of the RaiseEvent() method to the expectation of the field. Since the field is not

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