32.5. Test Coverage Examination
The PostgreSQL source code can be compiled with coverage testing instrumentation, so that it becomes possible to examine which parts of the code are covered by the regression tests or any other test suite that is run with the code. This is currently supported when compiling with GCC and requires the
gcov and lcov programs.A typical workflow would look like this:
./configure --enable-coverage ... OTHER OPTIONS ...
make
make check # or other test suite
make coverage-html
Then point your HTML browser to
coverage/index.html. The make commands also work in subdirectories.To reset the execution counts between test runs, run:
make coverage-clean
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