filefilter exclusions still show in Report

[nigel-friend]

I want to filter the unit test code coverage report to only show the coverage of our own code of a specific library.

We have a very structured directory system so I want to use the filefilter to exclude the third party code (its a lot easier to filter by directory rather than class). However when I do the report still shows the classes from the filtered files, their statistics are all 0 (Covered, Uncovered, Coverable, Total and Line Coverage) and the horizontal bar graph is grey but they still take up a line. I don't want to see classes of filtered files in the report at all.

I have found that the behaviour between filtering by file and class are different. If I filter by class then the class is not shown in the report at all. Unfortunately its a lot harder for me to filter by class as the class doesn't include its namespace and I don't want to maintain a class whitelist.

I am using:
Visual Studio 2017
CodeCoverage.exe for coverage.xml generation
ReportGenerator 3.0.2

[danielpalme]

Will have a look at this within the next days.

[danielpalme]

I fixed your problem in the following way:
If all files of a class get removed by filefilters, the whole class is removed from the report.

New release:
https://www.nuget.org/packages/ReportGenerator/3.1.1

[janlavrijsen]

I also want to filter the test coverage to include in the report only source files from a certain path.
We generate (from OpenCover reports) merged XML reports, for further processing.
I tried this with ReportGenerator 4.0.4.0 and the filefilter argument, but it gives a similar problem as posted here by nigel-friend:

• For the covered source files that are included as part of the file-filter, the XML output for the source file is as expected.
• For the covered source files that are NOT included as part of the file-filter, I expect no XML output, but it does generate XML output with empty coverage numbers. Example:

<CoverageReport scope="Common.DataAccess.RebuildProgress">
<Summary>
<Class>Common.DataAccess.RebuildProgress</Class>
<Assembly>CommonTypes</Assembly>
<Files />
<Coveredlines>0</Coveredlines>
<Uncoveredlines>0</Uncoveredlines>
<Coverablelines>0</Coverablelines>
<Totallines>0</Totallines>
<Linecoverage></Linecoverage>
</Summary>
<Files />
</CoverageReport>

My invocation of ReportGenerator looks like:
ReportGenerator.exe "-reports:D:\opencoverreports\*.opencover.xml" "-targetdir:D:\CodeCoverageData\combinedreport" -filefilters:+*ManagedServices* -reporttypes:Xml

My question is how I can get rid of the 'empty' XML's, since they give problems during later processing by third party tools.

Thanks!
Jan

[danielpalme]

I will have a look at the problem and come back to you.

[danielpalme]

Could you please test again with this release:
https://www.nuget.org/packages/ReportGenerator/4.2.4

[janlavrijsen]

Yes, with the 4.2.4 version it works as expected; now I don't get those XML files with 0 coverage.
Thanks for your quick help Daniel!