Writing unti test case for code coverage of method having events.

Question

private void GridViewColumnHeaderClickedHandler(object sender, RoutedEventArgs e)

{

GridViewColumnHeader headerClicked = e.OriginalSource as GridViewColumnHeader;

ListSortDirection direction;

if (headerClicked != null)

{

if (headerClicked.Role != GridViewColumnHeaderRole.Padding)

{
}
}
}

I want to write a unit test case to cover this code.

Answer 1

Hi Devloper_1234,

Thank you for your post.

According to your description, I understand your issue is about Unit test, so I'm moving your thread to Unit Testing Forum so that you can get a better help.

Thank you for your understanding and support.

Have a nice day.

---

Annabella Luo[MSFT]
MSDN Community Support | Feedback to us

Answer 2

Hi Devloper_1234,

Thank you for posting in the MSDN forum.

Here is a help link about how to create and run a unit test:

http://msdn.microsoft.com/en-us/library/ms182532.aspx

For creating a unit test for a private method, please see here:

http://msdn.microsoft.com/en-us/library/bb385974(v=vs.90).aspx

You wrote “cover this code”, I can’t understand clearly.

If you want to collect code coverage in Visual Studio 2010, the link below may help you:

http://msdn.microsoft.com/en-us/library/dd504821(v=vs.100)

The link below about analyzing code coverage results may help you:

http://msdn.microsoft.com/en-us/library/dd286597(v=vs.100)

If you are using Visual Studio2012 to view code coverage, please see it:

http://msdn.microsoft.com/en-us/library/dd537628.aspx

Note that you can only use code coverage when you run an automated test, and only from the computer that is running the test. Remote collection is not supported.

I hope this will be helpful to you.

Best regards,

---

Amanda Zhu [MSFT]
MSDN Community Support | Feedback to us

Answer 3

Thanks for your reply, I am looking for a test case to cover events.In above method

private void GridViewColumnHeaderClickedHandler(object sender, RoutedEventArgs e)

here if i am sending accessor.GridViewColumnHeaderClickedHandler(null,null) than code coverage will not happen. The problem is how to send parameters for events like RoutedEventArgs.

Answer 4

Hi Devloper_1234,

You are right that the code coverage will not happen when you set two parameters to null in GridViewColumnHeaderClickedHandlerTest() method. You need to initialize instances for Object and RoutedEventArgs class according to the actual situation. Then you can send them into target.GridViewColumnHeaderClickedHandler(sender, e) in unit test method.

I hope this will be helpful to you.

Best regards,

---

Amanda Zhu [MSFT]
MSDN Community Support | Feedback to us