test-lib: don't check prereqs of test cases that won't be run anyway

With './t1234-foo.sh -r 5,6' we can run only specific test cases in a test script, but our test framwork still evaluates all lazy prereqs that the excluded test cases might depend on. This is unnecessary and produces verbose and trace output that can be distracting. This has been an issue ever since the '-r|--run=' options were introduced in 0445e6f0a1 (test-lib: '--run' to run only specific tests, 2014-04-30), because that commit added the check of the list of test cases specified with '-r' after evaluating the prereqs. Avoid this unnecessary prereq evaluation by checking the list of test cases specified with '-r' before looking at the prereqs. Note that GIT_SKIP_TESTS has always been checked before the prereqs, so prereqs necessary for tests skipped that way were not evaluated. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

SZEDER Gábor committed Nov 12, 2019 at 13:24 UTC e0316695ec323d2dde837e32ba16a82a36d828b4
1 file changed +6 -6
t/test-lib.sh
+6 -6
index 30b07e310f..d92bf0f276 100644 --- a/t/test-lib.sh +++ b/t/test-lib.sh @@ -994,6 +994,12 @@ test_skip () { to_skip=t skipped_reason="GIT_SKIP_TESTS" fi + if test -z "$to_skip" && test -n "$run_list" && + ! match_test_selector_list '--run' $test_count "$run_list" + then + to_skip=t + skipped_reason="--run" + fi if test -z "$to_skip" && test -n "$test_prereq" && ! test_have_prereq "$test_prereq" then @@ -1006,12 +1012,6 @@ test_skip () { fi skipped_reason="missing $missing_prereq${of_prereq}" fi - if test -z "$to_skip" && test -n "$run_list" && - ! match_test_selector_list '--run' $test_count "$run_list" - then - to_skip=t - skipped_reason="--run" - fi case "$to_skip" in t)