Can clover get code coverage for those classes that get generated dynamically?

Hi,

In our application some JAVA classes are getting generated dynamically. May be this could be a sample http://www.rgagnon.com/javadetails/java-0039.html. In this sample you can see a dynamic method getting executed. Can I get code coverage details for such dynamic method? If yes can you please elaborate ?

Thanks

Shankar KC

1 answer

2 votes

Hi Shankar,

Yes, Clover can measure code coverage for such a dynamically generated class. What you have to do is:

 

1) Generate source code and store it in a file

In an article linked by you it's being done in lines:

File sourceFile   = new File("/temp/Hello.java");
FileWriter writer = new FileWriter(sourceFile);
...
writer.close();

 

2) Call CloverInstr tool in order to add Clover code to it

You can either call it from a command line, for instance:

java -cp /path/to/clover.jar com.atlassian.clover.CloverInstr -i path/to/clover.db -d /temp/clover-instr /temp/Hello.java

 

or directly from code:

import com.atlassian.clover.CloverInstr;

String[] cliArgs =  { 
    "-i", "path/to/clover.db", 
    "-d", "/temp/clover-instr", 
    "/temp/Hello.java" };

int result = CloverInstr.mainImpl(cliArgs);
if (result != 0)    {
    // problem during instrumentation
}

 

3) Call java compiler on an instrumented file

In our example you'd have to run a JavaCompiler task on the /temp/clover-instr/Hello.java.

 

Cheers
Marek

Suggest an answer

Log in or Sign up to answer
Community showcase
Asked Thursday in Jira Ops

I'm John Allspaw, Ask Me Anything about incident analysis and postmortems

I'm John Allspaw, co-founder of   Adaptive Capacity Labs, where we help teams use their incidents to learn and improve. We bring research-driven methods and approaches to drive effective inciden...

5,419 views 21 17
View question

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you