Events not working with CallBase = true depending on order interfaces are inherited. C : IA, IB behaves different than C : IB, IA

[seanhalliday]

public interface IFoo
{
event EventHandler Foo;
}

public interface IBar
{
event EventHandler Bar;
}

// reverse the order of IFoo and IBar will change the results of the test
public class FooBar : IFoo, IBar
{
public event EventHandler Foo;
public event EventHandler Bar;
public void RaiseEvents()
{
if (Foo != null)
Foo(this, EventArgs.Empty);
if (Bar != null)
Bar(this, EventArgs.Empty);
}
}

[TestClass]
public class MoqTest
{
[TestMethod]
public void MultipleInterfacesWithEvents()
{
var mock = new Mock<FooBar>() { CallBase = true };
IFoo foo = mock.Object;
IBar bar = mock.Object;

           bool fooCalled = false;
           bool barCalled = false;
           foo.Foo += (s, e) => fooCalled = true;
           bar.Bar += (s, e) => barCalled = true;

           mock.Object.RaiseEvents();

           Assert.IsTrue(fooCalled);
           Assert.IsTrue(barCalled);
    }

}

[pjquirk]

Possibly related question/analysis on SO.

[kzu]

IIRC, if you manually inherit a class with just virtual events but no
method to raise the event, it's impossible to raise it "from the outside".
The best you can do is what Moq does, calling the invocation list manually.
There is no magic in Moq, if you can do it with custom code, we should be
able to do it with Moq.

On Wed, Dec 16, 2015, 3:55 PM Patrick Quirk notifications@github.com
wrote:

Possibly related question/analysis on SO
http://stackoverflow.com/a/34319714/1698557.

—
Reply to this email directly or view it on GitHub
#228 (comment).

[kzu]

Could you update the issue title and provide a better description then?

Thanks

On Thu, Dec 17, 2015, 12:36 AM seanhalliday notifications@github.com
wrote:

If you read the rest of my comments on the issue, you will see that moq
behaves correctly if we simply reorder the interfaces listed in the
inheritance,so it is definitely a bug in moq.
On Dec 16, 2015 6:08 PM, "Daniel Cazzulino" notifications@github.com
wrote:

IIRC, if you manually inherit a class with just virtual events but no
method to raise the event, it's impossible to raise it "from the
outside".
The best you can do is what Moq does, calling the invocation list
manually.
There is no magic in Moq, if you can do it with custom code, we should be
able to do it with Moq.

On Wed, Dec 16, 2015, 3:55 PM Patrick Quirk notifications@github.com
wrote:

Possibly related question/analysis on SO
http://stackoverflow.com/a/34319714/1698557.

—
Reply to this email directly or view it on GitHub
#228 (comment).

—
Reply to this email directly or view it on GitHub
#228 (comment).

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Reply to this email directly or view it on GitHub
#228 (comment).