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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.
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o Minor bugfixes (testing):
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- If a unit test running in a subprocess exits abnormally or with a
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nonzero status code, treat the test as having failed, even if
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the test reported success. Without this fix, memory leaks don't cause
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cause the tests to fail, even with LeakSanitizer. Fixes bug 27658;
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bugfix on 0.2.2.4-alpha.
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@ -207,12 +207,20 @@ testcase_run_forked_(const struct testgroup_t *group,
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r = (int)read(outcome_pipe[0], b, 1);
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if (r == 0) {
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printf("[Lost connection!] ");
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return 0;
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return FAIL;
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} else if (r != 1) {
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perror("read outcome from pipe");
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}
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waitpid(pid, &status, 0);
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r = waitpid(pid, &status, 0);
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close(outcome_pipe[0]);
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if (r == -1) {
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perror("waitpid");
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return FAIL;
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}
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if (! WIFEXITED(status) || WEXITSTATUS(status) != 0) {
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printf("[did not exit cleanly.]");
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return FAIL;
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}
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return b[0]=='Y' ? OK : (b[0]=='S' ? SKIP : FAIL);
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}
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#endif
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