Problem with coverage-statistic
peter_...@web.de
we used Junit to trigger the code-coverage and have a problem with the following construct:
public final double getAntennaDistance(EnumSample cabin) {
switch (cabin) {
case ONE:
return 10.5;// in m
case TWO:
return 129.5;
default:
System.out.println("Cab: " + cabin + " is not valid!");
return -1;
}
}
In the html-output of jacoco "all 3 branches" are covered but the switch statement is marked as yellow. And in the overview EnumSample.new Object() {} there is only a coverage of 89%. Is it possible to get 100% coverage for this case and what must we do?
I extracted a simple example (only 2 classes, and 1 testclass) from our project and zipped it to the following location: https://www.dropbox.com/s/3ijf8b90fn8e42m/coveragetestsample.7z?dl=0
To run the example Apache ANT and JDK must be in the classpath, all aother dependencies are located in the ZIP file: We use Ant version 1.10.2 and JDK 1.8.0_144. We use Powermock (not in this easy example) together with jacoco and have implemented an ant-script for this.
to clean the sample project: open console, go to coveragetestsample and put in the command "ant clean".
to build the project with jacoco coverage put in the comand "ant report".
Best Regards
Peter
Marc Hoffmann
this is a known issue with synthetic classes created by the JDK
compiler. Future versions of JaCoCo might ignore these classes, see
https://github.com/jacoco/jacoco/issues/660
Regards,
-marc