test: execute g_test_run when tests are skipped

Sometimes a test's main() function recognizes that the environment
does not support the test, and therefore exits.  In this case, we
still should run g_test_run() so that a TAP harness will print the
test plan ("1..0") and the test will be marked as skipped.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Message-Id: <1543513531-1151-2-git-send-email-pbonzini@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

tests/cdrom-test.c

@@ -169,7 +169,7 @@ int main(int argc, char **argv)
 
     if (exec_genisoimg(genisocheck)) {
         /* genisoimage not available - so can't run tests */
-        return 0;
+        return g_test_run();
     }
 
     ret = prepare_image(arch, isoimage);

tests/ivshmem-test.c

@@ -492,7 +492,7 @@ int main(int argc, char **argv)
     /* shm */
     tmpshm = mktempshm(TMPSHMSIZE, &fd);
     if (!tmpshm) {
-        return 0;
+        goto out;
     }
     tmpshmem = mmap(0, TMPSHMSIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
     g_assert(tmpshmem != MAP_FAILED);
@@ -514,9 +514,8 @@ int main(int argc, char **argv)
         }
     }
 
+out:
     ret = g_test_run();
-
     cleanup();
-
     return ret;
 }

tests/migration-test.c

@@ -789,7 +789,7 @@ int main(int argc, char **argv)
     g_test_init(&argc, &argv, NULL);
 
     if (!ufd_version_check()) {
-        return 0;
+        return g_test_run();
     }
 
     /*
@@ -800,7 +800,7 @@ int main(int argc, char **argv)
     if (g_str_equal(qtest_get_arch(), "ppc64") &&
         access("/sys/module/kvm_hv", F_OK)) {
         g_test_message("Skipping test: kvm_hv not available");
-        return 0;
+        return g_test_run();
     }
 
     /*
@@ -811,11 +811,11 @@ int main(int argc, char **argv)
 #if defined(HOST_S390X)
         if (access("/dev/kvm", R_OK | W_OK)) {
             g_test_message("Skipping test: kvm not available");
-            return 0;
+            return g_test_run();
         }
 #else
         g_test_message("Skipping test: Need s390x host to work properly");
-        return 0;
+        return g_test_run();
 #endif
     }
 

tests/test-crypto-pbkdf.c

@@ -440,6 +440,7 @@ int main(int argc, char **argv)
 #else
 int main(int argc, char **argv)
 {
-    return 0;
+    g_test_init(&argc, &argv, NULL);
+    return g_test_run();
 }
 #endif