How can I get verbose output when running tests?
Step-by-step guide
When you run the tests via CMake (which actually runs ctest), you are only told if it passed or failed. After a failure you want to re-run the test and see all of what the test was doing.
For example you run the tests first:
% ctest
Let's assume you see the test "t_bufr_ls" has failed. Now re-run just that test (not everything) with the verbose option:
% ctest -VV -R t_bufr_ls
The -R option runs tests that match the regular expression.
The -VV switch tells ctest not to suppress its output. Another method is to run all the tests with the "--output-on-failure" option of ctest:
% ctest --output-on-failure
Now anything which was output by a failing test will be printed. This option can also be enabled by setting the environment variable CTEST_OUTPUT_ON_FAILURE