Using the default build template on TFS 2013, we use the Post-test script to collect trx files from protractor tests, in order to include those in the build report summary.
We use vs2015 MsTest:
MSTest.exe
/publishresultsfile:...\TRXTestResult\CHROME-54.0.2840.71-results.trx
/publish:https://.../tfs/defaultcollection
/teamproject:...
/publishbuild:...
/platform:AnyCpu
/flavor:Release
Result:
Waiting to publish...
Publishing results of test run (test name) to https://.../tfs/defaultcollection ...
Publish completed successfully.
However, the published test result wont show up in the build report (only the default from unit test).