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