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Is it possible to get code coverage done by tests using google test framework?
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To calculate the code coverage percentage, simply use the following formula: Code Coverage Percentage = (Number of lines of code executed by a testing algorithm/Total number of lines of code in a system component) * 100.
With that being said it is generally accepted that 80% coverage is a good goal to aim for. Trying to reach a higher coverage might turn out to be costly, while not necessary producing enough benefit. The first time you run your coverage tool you might find that you have a fairly low percentage of coverage.
Yes, I've successfully used both free (gcov) and commercial (CTC++) tools. No special steps are needed, just follow the documentation.
More details can be found in this blog http://googletesting.blogspot.dk/2014/07/measuring-coverage-at-google.html
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Yes, You can club your Gtest Based application with support of Gcov/lcov. refer the documentation of lcov http://ltp.sourceforge.net/coverage/lcov.php
there is one linux test project utility available which does your job very easy and is very self-interpretative.
lcov - a graphical GCOV front-end
Download from Ubuntu repo:
$ sudo apt-get install lcov
Use following commands in your build directory
$ lcov --directory ./build/ --capture --output-file ./code_coverage.info -rc lcov_branch_coverage=1
Run the Application
Generate HTML Report
$ genhtml code_coverage.info --branch-coverage --output-directory ./code_coverage_report/
This will look something like - http://ltp.sourceforge.net/coverage/lcov/output/index.html
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