commit 73a37d1e547d996515e2a0ffea8331bb535d2841 Author: Nick Mathewson nickm@torproject.org Date: Wed Sep 12 08:57:18 2018 -0400
Check waitpid return value and exit status in tinytest.c
It's possible for a unit test to report success via its pipe, but to fail as it tries to clean up and exit. Notably, this happens on a leak sanitizer failure.
Fixes bug 27658; bugfix on 0.2.2.4-alpha when tinytest was introduced. --- changes/bug27658 | 6 ++++++ src/ext/tinytest.c | 12 ++++++++++-- 2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/changes/bug27658 b/changes/bug27658 new file mode 100644 index 000000000..8cc0aa471 --- /dev/null +++ b/changes/bug27658 @@ -0,0 +1,6 @@ + o Minor bugfixes (testing): + - If a unit test running in a subprocess exits abnormally or with a + nonzero status code, treat the test as having failed, even if + the test reported success. Without this fix, memory leaks don't cause + cause the tests to fail, even with LeakSanitizer. Fixes bug 27658; + bugfix on 0.2.2.4-alpha. diff --git a/src/ext/tinytest.c b/src/ext/tinytest.c index 3fb1b39c7..a51cd6011 100644 --- a/src/ext/tinytest.c +++ b/src/ext/tinytest.c @@ -207,12 +207,20 @@ testcase_run_forked_(const struct testgroup_t *group, r = (int)read(outcome_pipe[0], b, 1); if (r == 0) { printf("[Lost connection!] "); - return 0; + return FAIL; } else if (r != 1) { perror("read outcome from pipe"); } - waitpid(pid, &status, 0); + r = waitpid(pid, &status, 0); close(outcome_pipe[0]); + if (r == -1) { + perror("waitpid"); + return FAIL; + } + if (! WIFEXITED(status) || WEXITSTATUS(status) != 0) { + printf("[did not exit cleanly.]"); + return FAIL; + } return b[0]=='Y' ? OK : (b[0]=='S' ? SKIP : FAIL); } #endif