glib/.gitlab-ci/lcovrc
Philip Withnall 8efe28c570 ci: Add lcov configuration to ignore g_return_*if_fail()/g_assert*()
While we can’t add markers to the macro implementations to cause lcov to
ignore them automatically, we can change our lcov configuration to
ignore all calls to them.

See https://github.com/linux-test-project/lcov/issues/44.

This causes all the un-takeable branches and un-reachable assertions to
be ignored by our code coverage, which bumps our statistics:
 • Lines: 74.9% → 74.8%
 • Functions: 82.3% → 82.3%
 • Branches: 53.3% → 64.2%

The rationale is that nobody should be testing programmer error
handling, as g_return_*if_fail() are used to guard against — so it’s not
reasonable to count missed branches like that in code coverage
statistics.

Signed-off-by: Philip Withnall <withnall@endlessm.com>
2018-10-06 00:19:20 +01:00

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# lcov and genhtml configuration
# See http://ltp.sourceforge.net/coverage/lcov/lcovrc.5.php
# Always enable branch coverage
lcov_branch_coverage = 1
# Exclude precondition assertions, as we can never reasonably get full branch
# coverage of them, as they should never normally fail.
# See https://github.com/linux-test-project/lcov/issues/44
lcov_excl_br_line = LCOV_EXCL_BR_LINE|g_return_if_fail|g_return_val_if_fail|g_assert|g_assert_
# Similarly for unreachable assertions.
lcov_excl_line = LCOV_EXCL_LINE|g_return_if_reached|g_return_val_if_reached|g_assert_not_reached