Why SwiftCov does not work in TravisCI?

[guidomb]

I want to know why SwiftCov does not work in travis and what needs to be done to fix it.

[jpsim]

How are you installing it?

[guidomb]

I uploaded the .pkg to my repo and I installed it using the installer command. The problem is that it fails to generate the coverage files.

— Sent from Mailbox

On Wed, Jul 8, 2015 at 7:58 PM, JP Simard notifications@github.com wrote:

How are you installing it?

Reply to this email directly or view it on GitHub: https://github.com/realm/SwiftCov/issues/56#issuecomment-119754124

[jpsim]

Fails in what way?

[guidomb]

I don't really know is weird. I have this project building in travis. When I run the script/coverage upload script locally it works fine and uploads the coverage report to coveralls.io. The same script when is run in travis uploads a coverage report of 0% which is not true.

Reading the build log (I listed the coverage folder to check that all the .gcov files are generated) you can see the following message: Failed to generate test code coverage files. Which is not true because the coverage folder contains all the .gcov files.

[kishikawakatsumi]

I'm not sure what happened on Travis CI, I also tried many times, but did not succeed. Maybe it seems that LLDB failed to attach to test process. I think it is something different between local environment and Travis CI. It takes time to investigate it. Since there is no way to find other than to see the log.

[guidomb]

I've just printed the coverage.json file generated by coveralls-gcov and the problem is that code coverage could not be calculated somehow. But I have no idea where to look now.

[{"name":"ReactiveArray/Operation.swift","source_digest":"9776ed85b5acfcf37dcb4fb060b95633","coverage":[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null]},{"name":"ReactiveArray/ReactiveArray.swift","source_digest":"7429f76c399275c581e4d151d2adeef1","coverage":[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null]}]}

[kishikawakatsumi]

The results show that executing any function of breakpoints have failed. Therefore, it seems all lines are not running. Perhaps debugger failed to attach the process, but I do not know why fail on Travis CI.

[guidomb]

Yeah is super hard to debug anything in travis. Maybe with ssh access and adding logs to SwiftCov. I may try that.

[jenkinsja]

I run into a very similar issue when running swiftcov from Jenkins. In addition to the Failed to generate test code coverage files error message, I also get a python crash akin to that which was reported in https://github.com/realm/SwiftCov/issues/6. Any information on how to resolve this issue would be greatly appreciated.

[pawurb]

Do you have any plans on adding Travis CI support ? As far as I know it is the only free option for OS projects. Maybe sth changed since 1 year ago ;)