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-rw-r--r--src/test/test-signal-util.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/src/test/test-signal-util.c b/src/test/test-signal-util.c
new file mode 100644
index 0000000..e5096a8
--- /dev/null
+++ b/src/test/test-signal-util.c
@@ -0,0 +1,150 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <unistd.h>
+
+#include "log.h"
+#include "macro.h"
+#include "signal-util.h"
+#include "stdio-util.h"
+#include "string-util.h"
+#include "process-util.h"
+
+#define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig)
+
+static void test_rt_signals(void) {
+ info(SIGRTMIN);
+ info(SIGRTMAX);
+
+ /* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */
+ assert(SIGRTMAX - SIGRTMIN >= 24);
+}
+
+static void test_signal_to_string_one(int val) {
+ const char *p;
+
+ assert_se(p = signal_to_string(val));
+
+ assert_se(signal_from_string(p) == val);
+
+ p = strjoina("SIG", p);
+ assert_se(signal_from_string(p) == val);
+}
+
+static void test_signal_from_string_one(const char *s, int val) {
+ const char *p;
+
+ assert_se(signal_from_string(s) == val);
+
+ p = strjoina("SIG", s);
+ assert_se(signal_from_string(p) == val);
+}
+
+static void test_signal_from_string_number(const char *s, int val) {
+ const char *p;
+
+ assert_se(signal_from_string(s) == val);
+
+ p = strjoina("SIG", s);
+ assert_se(signal_from_string(p) == -EINVAL);
+}
+
+static void test_signal_from_string(void) {
+ char buf[STRLEN("RTMIN+") + DECIMAL_STR_MAX(int) + 1];
+
+ test_signal_to_string_one(SIGHUP);
+ test_signal_to_string_one(SIGTERM);
+ test_signal_to_string_one(SIGRTMIN);
+ test_signal_to_string_one(SIGRTMIN+3);
+ test_signal_to_string_one(SIGRTMAX-4);
+
+ test_signal_from_string_one("RTMIN", SIGRTMIN);
+ test_signal_from_string_one("RTMAX", SIGRTMAX);
+
+ xsprintf(buf, "RTMIN+%d", SIGRTMAX-SIGRTMIN);
+ test_signal_from_string_one(buf, SIGRTMAX);
+
+ xsprintf(buf, "RTMIN+%d", INT_MAX);
+ test_signal_from_string_one(buf, -ERANGE);
+
+ xsprintf(buf, "RTMAX-%d", SIGRTMAX-SIGRTMIN);
+ test_signal_from_string_one(buf, SIGRTMIN);
+
+ xsprintf(buf, "RTMAX-%d", INT_MAX);
+ test_signal_from_string_one(buf, -ERANGE);
+
+ test_signal_from_string_one("", -EINVAL);
+ test_signal_from_string_one("hup", -EINVAL);
+ test_signal_from_string_one("HOGEHOGE", -EINVAL);
+
+ test_signal_from_string_one("RTMIN-5", -EINVAL);
+ test_signal_from_string_one("RTMIN- 5", -EINVAL);
+ test_signal_from_string_one("RTMIN -5", -EINVAL);
+ test_signal_from_string_one("RTMIN+ 5", -EINVAL);
+ test_signal_from_string_one("RTMIN +5", -EINVAL);
+ test_signal_from_string_one("RTMIN+100", -ERANGE);
+ test_signal_from_string_one("RTMIN+-3", -EINVAL);
+ test_signal_from_string_one("RTMIN++3", -EINVAL);
+ test_signal_from_string_one("RTMIN+HUP", -EINVAL);
+ test_signal_from_string_one("RTMIN3", -EINVAL);
+
+ test_signal_from_string_one("RTMAX+5", -EINVAL);
+ test_signal_from_string_one("RTMAX+ 5", -EINVAL);
+ test_signal_from_string_one("RTMAX +5", -EINVAL);
+ test_signal_from_string_one("RTMAX- 5", -EINVAL);
+ test_signal_from_string_one("RTMAX -5", -EINVAL);
+ test_signal_from_string_one("RTMAX-100", -ERANGE);
+ test_signal_from_string_one("RTMAX-+3", -EINVAL);
+ test_signal_from_string_one("RTMAX--3", -EINVAL);
+ test_signal_from_string_one("RTMAX-HUP", -EINVAL);
+
+ test_signal_from_string_number("3", 3);
+ test_signal_from_string_number("+5", 5);
+ test_signal_from_string_number(" +5", 5);
+ test_signal_from_string_number("10000", -ERANGE);
+ test_signal_from_string_number("-2", -ERANGE);
+}
+
+static void test_block_signals(void) {
+ sigset_t ss;
+
+ assert_se(sigprocmask(0, NULL, &ss) >= 0);
+
+ assert_se(sigismember(&ss, SIGUSR1) == 0);
+ assert_se(sigismember(&ss, SIGALRM) == 0);
+ assert_se(sigismember(&ss, SIGVTALRM) == 0);
+
+ {
+ BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
+
+ assert_se(sigprocmask(0, NULL, &ss) >= 0);
+ assert_se(sigismember(&ss, SIGUSR1) == 1);
+ assert_se(sigismember(&ss, SIGALRM) == 0);
+ assert_se(sigismember(&ss, SIGVTALRM) == 1);
+
+ }
+
+ assert_se(sigprocmask(0, NULL, &ss) >= 0);
+ assert_se(sigismember(&ss, SIGUSR1) == 0);
+ assert_se(sigismember(&ss, SIGALRM) == 0);
+ assert_se(sigismember(&ss, SIGVTALRM) == 0);
+}
+
+static void test_ignore_signals(void) {
+ assert_se(ignore_signals(SIGINT, -1) >= 0);
+ assert_se(kill(getpid_cached(), SIGINT) >= 0);
+ assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
+ assert_se(kill(getpid_cached(), SIGUSR1) >= 0);
+ assert_se(kill(getpid_cached(), SIGUSR2) >= 0);
+ assert_se(kill(getpid_cached(), SIGTERM) >= 0);
+ assert_se(kill(getpid_cached(), SIGPIPE) >= 0);
+ assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
+}
+
+int main(int argc, char *argv[]) {
+ test_rt_signals();
+ test_signal_from_string();
+ test_block_signals();
+ test_ignore_signals();
+
+ return 0;
+}