Questions on JustMock Forum

1 answer

240 views

Mocking increment/decrement operator on event handlers

Is there a way to mock the increment/decrement operators?

Example:

MyEventHandler += HandlerToAdd;
MyEventHandler -= HandlerToSubtrack;

It seems the typical property mocking doesn't work here.

General Discussions

answered on 27 Feb 2012

8 answers

3.3K+ views

Tests fail in large runs but pass individually

Hi,

I am having a problem with JustMock where tests pass when run individually but fail when all tests are run. I am not using any static or final mocking.

In the following code, the GetSectionsForAppByAppId_WithAppIdForSingleApp_ReturnsGetSectionsForAppResponse test fails.

   [TestClass]
   public class MobileAppSectionServiceTests
   {
        private const int AppId = 1;
        private const int LocalCultureId = 2;
 
        private IEnumerable<IMobileAppSection> sections;
        private GetSectionsForAppRequest request;
        private MobileAppSection section;
 
        [TestInitialize]
        public void TestInit()
        {
            section = new MobileAppSection();
            section.Id = AppId;
            section.Name = "SectionName";
            section.Summary = "Section Summary";
 
            sections = new List<IMobileAppSection> { section };
            request = new GetSectionsForAppRequest { MobileAppId = AppId, LocalCultureId = LocalCultureId};
        }
 
        [TestMethod]
        public void GetSectionsForAppByAppId_WithAppIdForSingleApp_ReturnsGetSectionsForAppResponse()
        {
            MobileAppSectionService service = new MobileAppSectionService(null);
            Mock.Arrange<IEnumerable<IMobileAppSection>>(() => service.GetSectionDomainEntitiesForAppByCulture(AppId, LocalCultureId)).Returns(sections);
            GetSectionsForAppResponse response = service.GetSectionsForAppByCulture(request);
            
            Assert.IsNotNull(response, "Response is not null");
        }
 
        [TestMethod]
        public void GetSectionsForAppByAppId_WithAppIdForSingleApp_ReturnsResponseWithSections()
        {
            IMobileAppSectionMapper _mobileAppSectionMapper = Mock.Create<IMobileAppSectionMapper>();
            MobileAppSectionService service = new MobileAppSectionService(_mobileAppSectionMapper);
            Mock.Arrange<IEnumerable<IMobileAppSection>>(() => _mobileAppSectionMapper.GetSectionsForMobileApp(AppId, LocalCultureId)).Returns(sections);
            
            GetSectionsForAppResponse response = service.GetSectionsForAppByCulture(request);
            
            Assert.IsTrue(response.MobileAppSections.Any());
        }
    }

The error message is:

Test method MobileAppDelivery.Service.Tests.Unit.MobileAppSectionServiceTests.GetSectionsForAppByAppId_WithAppIdForSingleApp_ReturnsGetSectionsForAppResponse threw exception: 
System.NullReferenceException: Object reference not set to an instance of an object.

The NullReferenceException is thrown the following method of the MobileAppSectionService class.

    public List<IMobileAppSection> GetSectionDomainEntitiesForAppByCulture(int appId, int cultureId)
    {
       List<IMobileAppSection> sections = _mobileAppSectionMapper.GetSectionsForMobileApp(appId, cultureId); 
       return sections;
    }

where _mobileAppSectionMapper is null. Rewriting the test method as the following fixes the problem

        [TestMethod]
        public void GetSectionsForAppByAppId_WithAppIdForSingleApp_ReturnsGetSectionsForAppResponse()
        {
            IMobileAppSectionMapper mapper = Mock.Create<IMobileAppSectionMapper>();
 
            MobileAppSectionService service = new MobileAppSectionService(mapper);
            Mock.Arrange<IEnumerable<IMobileAppSection>>(() => service.GetSectionDomainEntitiesForAppByCulture(AppId, LocalCultureId)).DoNothing().Returns(sections);
            GetSectionsForAppResponse response = service.GetSectionsForAppByCulture(request);
            
            Assert.IsNotNull(response, "Response is not null");
        }

So why does the original test only pass when run individually? 
My instincts tell me that the original test was not written correctly but it still passed. 

Thanks!

General Discussions

answered on 24 Feb 2012

1 answer

85 views

ReturnsCollection not in use in justmock trial version q1 2012

justmock does not use

ReturnsCollection

i can,t find it .. other methods works

General Discussions

answered on 21 Feb 2012

3 answers

100 views

Mocked object not Mocking properly

We are using the Q1 2011 release (at least until Q1 2012) is released. I have a few problems related to objects that should be mocked and arranged not behaving as they are arranged/mocked. We have a base class that we use for all of our testing within a class in the code, and then each method within code has a TestClass associated with it, with the seperate test methods for that method under test defined within.

here is the base class

[TestClass]

public class SPM150ControllerTestBase

{

public IAssetsService AssetsServiceMock { get; set; }

public INavigationService NavigationServiceMock { get; set; }

public ISPM150Service SPM150ServiceMock { get; set; }

public IGlobalData GlobalDataMock { get; set; }

public SPM150Controller Target { get; set; }

[TestInitialize]

public void TestInit()

{

AssetsServiceMock = Mock.Create<IAssetsService>();

SPM150ServiceMock = Mock.Create<ISPM150Service>();

NavigationServiceMock = Mock.Create<INavigationService>();

GlobalDataMock = Mock.Create<IGlobalData>();

Target = Mock.Create<SPM150Controller>(Behavior.CallOriginal, new object[] { AssetsServiceMock, SPM150ServiceMock, NavigationServiceMock, GlobalDataMock, null });

OnInitialize();

}

protected virtual void OnInitialize()

{ }

}

now a class and method that the test is failing on....

[TestClass]

public class UpdateEquipmentTest : SPM150ControllerTestBase

{

public IEquipmentListItem UpdateItemMock { get; set; }

public IEquipmentListItem ExistingItemMock { get; set; }

//[TestInitialize]

//public void OnInit()

//{

// base.TestInit();

//}

protected override void OnInitialize()

{

UpdateItemMock = Mock.Create<IEquipmentListItem>();

ExistingItemMock = Mock.Create<IEquipmentListItem>();

//Mock.Arrange(() => UpdateItemMock.BenchmarkValue).Returns(100);

//Mock.Arrange(() => UpdateItemMock.Classification).Returns("No Class");

//Mock.Arrange(() => UpdateItemMock.DeviceName).Returns("A Device");

//Mock.Arrange(() => UpdateItemMock.IPAddress).Returns("000.000.000.000");

//Mock.Arrange(() => UpdateItemMock.Request).Returns(0);

//Mock.Arrange(() => ExistingItemMock.BenchmarkValue).Returns(100);

//Mock.Arrange(() => ExistingItemMock.Classification).Returns("No Class");

//Mock.Arrange(() => ExistingItemMock.DeviceName).Returns("A Device");

//Mock.Arrange(() => ExistingItemMock.IPAddress).Returns("000.000.000.000");

//Mock.Arrange(() => ExistingItemMock.Request).Returns(0);

UpdateItemMock.BenchmarkValue = 100.0;

UpdateItemMock.Classification = "No Class";

UpdateItemMock.DeviceName = "A Device";

UpdateItemMock.IPAddress = "000.000.000.000";

UpdateItemMock.ModbusUnitId = 100;

UpdateItemMock.Request = 0;

//set with default values can change if needed...

ExistingItemMock.BenchmarkValue = 100.0;

ExistingItemMock.DeviceName = "A Device";

ExistingItemMock.ModbusUnitId = 100;

ExistingItemMock.IPAddress = "000.000.000.000";

ExistingItemMock.Request = 0;

Mock.Arrange(() => Target.LogBenchmarkValueChange(Arg.AnyString, Arg.AnyDouble, Arg.AnyString, Arg.AnyString, Arg.AnyDouble)).DoNothing();

Mock.Arrange(() => Target.LogIPChange(Arg.AnyString, Arg.AnyString, Arg.AnyString, Arg.AnyString, Arg.AnyString)).DoNothing();

Mock.Arrange(() => Target.LogModBusUnitIdChange(Arg.AnyString, Arg.AnyInt, Arg.AnyString, Arg.AnyString, Arg.AnyInt)).DoNothing();

Mock.Arrange(() => Target.LogDeviceNameChange(Arg.AnyString, Arg.AnyString, Arg.AnyString, Arg.AnyString, Arg.AnyString)).DoNothing();

}

[TestMethod]

public void Test0020CheckForSiteAndUserCalledCorrectParametersVersion1()

{

Mock.Arrange(() => Target.CheckForSiteNumberAndUserName(Arg.AnyString, Arg.AnyString)).DoNothing().OccursOnce();

Mock.Arrange(() => SPM150ServiceMock.GetEquipmentDetails(Arg.AnyInt)).Returns(ExistingItemMock);

Target.UpdateEquipment("12345", UpdateItemMock, "Hi Bob!");

//Target.Assert();

//Target.Assert(x => x.CheckForSiteNumberAndUserName("12345", "Hi Bob!"));

Mock.Assert(() => Target.CheckForSiteNumberAndUserName("12345", "Hi Bob!"));

}

with this particular example we have two issues.
1. The Call to CheckForSiteNumberAndUserName executes the original code despite the DoNothing on the arrange.
2. The call to GetEquipmentDetails within the SPM150 Mock, does nothing (as it should) but returns null despite the fact that it is arranged to return the ExistingItemMock (created in the OnInitialize method)

Any help is greatly appreciated.

General Discussions

answered on 17 Feb 2012

1 answer

185 views

Running NUnit test and mocking statics

Hi,

I have just started using the evaluation version of JustMock. I am trying to run my tests through NUnit in an environment that does not have Visual Studio installed (a build server with .NET 4.0 redist installed). It appears to work for all tests that do not require mocking static methods, however when I attempt to run a test with a mocked static method I get the following error:

MyTest.TestConnect:
Telerik.JustMock.MockException : Profiler must be enabled to mock/assert target MyClass.AStaticMethod(Boolean) method.

When I look up your documentation at this link it only gives information on how to configure the advanced features when using Visual Studio.

Do you guys support using NUnit GUI as the test runner?
Is it possible that there is an issue with the fact that I have not installed JustMock on my build server (I'm just copying the Telerik.JustMock.dll at the moment)?
I am currently building in Release mode as the .NET 4.0 debug dlls are not present on my build server - could this be an issue?

If there is no way to get this working I can just wrap the static methods with a dependency injected adaptor interface, but it would be useful for me to be able to avoid introducing the extra class.

Thanks.

General Discussions

answered on 17 Feb 2012

1 answer

234 views

Error Received please help

In a nutshell I am receiving the following error.

Test method SPM150.Test.LogBenchmarkValueChangeTest.Test0020LogTransactionCalledWhenValuesDifferentCorrectParmetersVersion1 threw exception:

Telerik.JustMock.MockException: Profiler must be enabled to mock/assert target SPM150ControllerTestBase.get_AssetsServiceMock() method.

at Telerik.JustMock.Handlers.InterceptorHandler.Create(Object target, MethodInfo methodInfo, Boolean privateMethod)

at Telerik.JustMock.MockContext`1.SetupMock(MockExpression`1 expression)

at Telerik.JustMock.Mock.<>c__DisplayClass13.<Assert>b__12(MockContext`1 x)

at Telerik.JustMock.MockContext.Setup(Instruction instruction, Action`1 action)

at Telerik.JustMock.Mock.Assert(Expression`1 expression, Args args, Occurs occurs)

at Telerik.JustMock.Mock.Assert(Expression`1 expression)

at SPM150.Test.LogBenchmarkValueChangeTest.Test0020LogTransactionCalledWhenValuesDifferentCorrectParmetersVersion1() in SPM150ControllerTest.cs: line 545

I am running my unit test using the Resharper 6.1 Test Runner in Visual Studio 2010. I recently upgraded from the Q1 2011 Free edition to the Q3 2011 Free edition. before the upgrade all of the tests ran without any exception.

I upgraded because I was having an issue where a test was passing despite the fact that I changed a value that should have made it fail, and though by chance it was something that could be fixed by doing an upgrade.

Any help you can provide is greatly appreciated.

Thanks.

JustMock Free Edition

answered on 14 Feb 2012

3 answers

106 views

JustMock And The Telerik ORM

Just looking for some example on how to correctly Mock the ORM entities model.
any help would be great

Thanks

General Discussions

answered on 09 Feb 2012

3 answers

165 views

Mocking abstract class results in AccessViolationException.

Hi all,

I have the following class (simplified)

public abstract class AbstractStateMachine

{

public void DoClose()

{

//do something

close();

}

public abstract void close();

}

I want to test if the close() method is called, so I thought I could do the following:

[TestMethod]

public void TestMethod1()

{

AbstractStateMachine sm = Mock.Create<AbstractStateMachine>(Behavior.CallOriginal);

Mock.Arrange(() => sm.close()).DoNothing().MustBeCalled();

sm.DoClose();

}

As a result, I get a AccessViolationException in the sm.DoClose() method.
What am I doing wrong?

General Discussions

answered on 26 Jan 2012

1 answer

53 views

Mocks with Long and Int are treated as seperate Mocks.

I found an issue with Long's and Int's being treated as different objects in the Mocks.

Here's my test class:

public class MyClass

{

public long AddOne(long number)

{

return number + 1;

}

Here's my test that fails:

[TestMethod]

public void MyClass_AddOne_mock_test_int()

{

// Arrange

int number = 5;

int expectedResult = 42;

var myClass = Mock.Create<MyClass>();

Mock.Arrange(() => myClass.AddOne(number))

.Returns(expectedResult);

// Act

var result = myClass.AddOne(number);

// Assert

Assert.AreEqual(expectedResult, result); // result = 0

}

If I change "number" to a long the test passes.

This also holds true for this:

Mock.Assert(() => myClass.AddOne(number), Occurs.Once());

My expectations were for int and long to produce the same result since they are "equal" and there is no way to actually pass a true int into that method.

[TestMethod]

public void Assert_int_vs_long()

{

int intNumber = 5;

long longNumber = 5;

Assert.AreEqual(intNumber, longNumber);

}

General Discussions

answered on 19 Jan 2012

4 answers

142 views

MSCorLib mocking fails inside Private methods

Ok, this one took me a WHILE to figure out. Not sure exactly how to explain it...

but this scenario will fail to be mocked:

public static bool DirectoryExists(string directory)

{

return DirectoryExists(new DirectoryInfo(directory));

}

private static bool DirectoryExists(DirectoryInfo directory)

{

bool value = Directory.Exists(directory.FullName);

return value;

}

My test calls the first method, which then calls the 2nd method.

The Directory.Exists will NOT be mocked if the method is marked as private. If I change it to public, the mock will take place.

I've included a sample project for your review.

http://dl.dropbox.com/u/1006254/JustMockTestProject4.zip

forgot to mention: I'm using MSTest

General Discussions

answered on 10 Jan 2012