Fine code coverage is not visible

[roopahtshree]

I'm using Microsoft Visual Studio Professional 2019 Version 16.11.18 . i have created a simple google test project in c++. in the test explorer 1 test case is getting passed, but fine code coverage summary is showing all as 0

Below is the coverage log
Generating html report Cobertura report generation duration - 00:00:00.8341873
Generating cobertura report Completed coverage for (Sample-Test1) : 00:00:04.9284836
Run OpenCover (Sample-Test1) File synchronization 7 items, duration : 00:00:00.0322093
Starting coverage - full details in FCC Output Pane
Coverage collected when tests finish.
RunInParallel option true for immediate
See option RunMsCodeCoverage for a better (Beta) experience.
View readme. Html report generation duration - 00:00:01.3744892
Generating html report Cobertura report generation duration - 00:00:00.9058176
Generating cobertura report Completed coverage for (Sample-Test1): 00:00:05.0150038
Run OpenCover (Sample-Test1) File synchronization 7 items, duration : 00:00:00.0394546
Starting coverage - full details in FCC Output Pane Coverage collected when tests finish.
RunInParallel option true for immediate
See option RunMsCodeCoverage for a better (Beta) experience. View readme.
Html report generation duration - 00:00:01.7879862
Generating html report Cobertura report generation duration - 00:00:01.0141168
Generating cobertura report Completed coverage for (Sample-Test1) : 00:00:04.3797661
Run OpenCover (Sample-Test1) File synchronization 23 items, duration : 00:00:00.1191535
Starting coverage - full details in FCC Output Pan
e Coverage collected when tests finish. RunInParallel option true for immediate
See option RunMsCodeCoverage for a better (Beta) experience. View readme.

[tonyhallett]

Set RunMsCodeCoverage to Yes.

[roopahtshree]

After setting RunMsCodeCoverage to Yes, i'm getting the below error. Please help to solve that error

Using automatically detected runsettings file(s). To learn more visit https://aka.ms/vs-runsettings.
========== Starting test run ==========
Failed to negotiate protocol, waiting for response timed out after 90 seconds. This may occur due to machine slowness, please set environment variable VSTEST_CONNECTION_TIMEOUT to increase timeout.
Failed to negotiate protocol, waiting for response timed out after 90 seconds. This may occur due to machine slowness, please set environment variable VSTEST_CONNECTION_TIMEOUT to increase timeout.
========== Test run aborted: 0 Tests (0 Passed, 0 Failed, 0 Skipped) run in < 1 ms ==========

[tonyhallett]

Please see #267 (comment)

[tonyhallett]

@roopahtshree
Did you resolve your issue ?

[roopahtshree]

No, i tried setting the environment variable VSTEST_CONNECTION_TIMEOUT to 6000. Still the coverage is not getting generated

[tonyhallett]

Can you post your generated run settings from directoty \Debug\fine-code-coverage\coverage-tool-output

[tonyhallett]

Perhaps you can check this too https://learn.microsoft.com/en-us/visualstudio/test/troubleshooting-code-coverage?view=vs-2022

[roopahtshree]

Can we use fine code coverage to generate a coverage for C project having cunit test framework?

Attached is the runsettings generated
Sample-Test1-fcc-mscodecoverage-generated.txt

[tonyhallett]

Can we use fine code coverage to generate a coverage for C project having cunit test framework?

I believe ms code coverage is C# or C++. Did you mean C++ ?

from https://learn.microsoft.com/en-us/visualstudio/test/writing-unit-tests-for-c-cpp?view=vs-2022
Visual Studio includes these C++ test frameworks with no additional downloads required:

Microsoft Unit Testing Framework for C++
Google Test
Boost.Test
CTest
You can use the installed frameworks, or write your own test adapter for whatever framework you want to use within Visual Studio. A test adapter integrates unit tests with the Test Explorer window. Several third-party adapters are available on the Visual Studio Marketplace. For more information, see Install third-party unit test frameworks.

So cunit would need a test adapter.

[roopahtshree]

Thanks for the information.

Currently i'm using google test framework for which i have attached runsettings earlier.

[tonyhallett]

#219 (comment)

Hello, is it supporting branch coverage for C++, I tested it with VS2022 and the line coverage works well, but the branch coverage always shows 0.

Given that C++ worked for me ( admittedly on a very simple project ) and for the user above - closing as VSTEST_CONNECTION_TIMEOUT is a vstest issue and not FCC related.