test-bus-error: add tests for setting error == 0

diff --git a/src/libsystemd/sd-bus/test-bus-error.c b/src/libsystemd/sd-bus/test-bus-error.c
index 786b6d5..407fd14 100644 (file)
--- a/src/libsystemd/sd-bus/test-bus-error.c
+++ b/src/libsystemd/sd-bus/test-bus-error.c
@@ -44,7 +44,15 @@ static void test_error(void) {
         assert_se(sd_bus_error_is_set(&error));
         sd_bus_error_free(&error);
 
+        /* Check with no error */
         assert_se(!sd_bus_error_is_set(&error));
+        assert_se(sd_bus_error_setf(&error, NULL, "yyy %i", -1) == 0);
+        assert_se(error.name == NULL);
+        assert_se(error.message == NULL);
+        assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
+        assert_se(sd_bus_error_get_errno(&error) == 0);
+        assert_se(!sd_bus_error_is_set(&error));
+
         assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
         assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
         assert_se(streq(error.message, "yyy -1"));
@@ -112,6 +120,16 @@ static void test_error(void) {
         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
         assert_se(sd_bus_error_get_errno(&error) == EIO);
         assert_se(sd_bus_error_is_set(&error));
+        sd_bus_error_free(&error);
+
+        /* Check with no error */
+        assert_se(!sd_bus_error_is_set(&error));
+        assert_se(sd_bus_error_set_errnof(&error, 0, "Waldi %c", 'X') == 0);
+        assert_se(error.name == NULL);
+        assert_se(error.message == NULL);
+        assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
+        assert_se(sd_bus_error_get_errno(&error) == 0);
+        assert_se(!sd_bus_error_is_set(&error));
 }
 
 extern const sd_bus_error_map __start_BUS_ERROR_MAP[];