test-execute: update test for SystemCallErrorNumber=

src/test/test-execute.c

@@ -270,8 +270,10 @@ static void test_exec_systemcallfilter(Manager *m) {
 
 static void test_exec_systemcallerrornumber(Manager *m) {
 #if HAVE_SECCOMP
-        if (is_seccomp_available())
-                test(m, "exec-systemcallerrornumber.service", 1, CLD_EXITED);
+        if (!is_seccomp_available())
+                return;
+        test(m, "exec-systemcallerrornumber-name.service", errno_from_name("EACCES"), CLD_EXITED);
+        test(m, "exec-systemcallerrornumber-number.service", 255, CLD_EXITED);
 #endif
 }
 

test/meson.build

@@ -100,7 +100,8 @@ test_data_files = '''
         test-execute/exec-supplementarygroups-single-group-user.service
         test-execute/exec-supplementarygroups-single-group.service
         test-execute/exec-supplementarygroups.service
-        test-execute/exec-systemcallerrornumber.service
+        test-execute/exec-systemcallerrornumber-name.service
+        test-execute/exec-systemcallerrornumber-number.service
         test-execute/exec-systemcallfilter-failing.service
         test-execute/exec-systemcallfilter-failing2.service
         test-execute/exec-systemcallfilter-not-failing.service

test/test-execute/exec-systemcallerrornumber-name.service

@@ -2,7 +2,7 @@
 Description=Test for SystemCallErrorNumber
 
 [Service]
-ExecStart=/bin/sh -x -c 'uname -a'
+ExecStart=/bin/python3 -c 'import os\ntry: os.uname()\nexcept Exception as e: exit(e.errno)'
 Type=oneshot
 SystemCallFilter=~uname
 SystemCallErrorNumber=EACCES

test/test-execute/exec-systemcallerrornumber-number.service

@@ -0,0 +1,8 @@
+[Unit]
+Description=Test for SystemCallErrorNumber
+
+[Service]
+ExecStart=/bin/python3 -c 'import os\ntry: os.uname()\nexcept Exception as e: exit(e.errno)'
+Type=oneshot
+SystemCallFilter=~uname
+SystemCallErrorNumber=255