Hi Stepan, > Hello Aleksander! I'm a beginner and I would like to see and try your patch. > However, I have never worked with coverage in regression tests for > PostgreSQL. Could you please tell me how it works and help me understand the > process? Thanks!
You are going to need some Linux distribution, GCC stack and lcov 1.16 [1]. (Lcov doesn't work with Clang; We seem to experience some problems with lcov 2.0+, this is being investigated [2]) Apply the patch as usual ( git clone git://git.postgresql.org/git/postgresql.git ; git am ... ) and run: ``` git clean -dfx && meson setup --buildtype debug -DPG_TEST_EXTRA="kerberos ldap ssl" -Db_coverage=true -Dldap=disabled -Dssl=openssl -Dcassert=true -Dtap_tests=enabled -Dprefix=/home/eax/pginstall build && ninja -C build && PG_TEST_EXTRA=1 meson test -C build && ninja -C build coverage-html ``` Note the `-Db_coverage=true` and `ninja -C build coverage-html` parts. Change `prefix` to an appropriate one. This will take longer than usual. Your coverage report will be located in build/meson-logs/coveragereport. You can compare the reports with and without the patch to ensure that the patch improves code coverage. [1]: https://github.com/linux-test-project/lcov/releases/tag/v1.16 [2]: https://postgr.es/m/CAJ7c6TN%2BMCh99EZ8YGhXZAdnqvNQYir6E34B_mmcB5KsxCB00A%40mail.gmail.com -- Best regards, Aleksander Alekseev
