1 files changed, 113 insertions, 0 deletions
diff --git a/tests/gsup/gsup_test.c b/tests/gsup/gsup_test.c
new file mode 100644
index 0000000..1a7bb76
--- /dev/null
+++ b/tests/gsup/gsup_test.c
@@ -0,0 +1,113 @@
+/* (C) 2018 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <string.h>
+
+#include <osmocom/core/logging.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/application.h>
+#include <osmocom/gsupclient/gsup_req.h>
+
+void *ctx = NULL;
+
+static void test_gsup_make_response(void)
+{
+	char *source_name = "incoming-source-name";
+	char *destination_name = "preset-destination-name";
+	uint8_t sm_rp_mr = 23;
+	uint8_t other_sm_rp_mr = 17;
+	struct osmo_gsup_message rx = {
+		.message_type = OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST,
+		.imsi = "1234567",
+		.message_class = OSMO_GSUP_MESSAGE_CLASS_SUBSCRIBER_MANAGEMENT,
+		.source_name = (uint8_t*)source_name,
+		.source_name_len = strlen(source_name) + 1,
+		.sm_rp_mr = &sm_rp_mr,
+		.session_id = 42,
+		.session_state = OSMO_GSUP_SESSION_STATE_BEGIN,
+	};
+	struct osmo_gsup_message nonempty = {
+		.message_type = OSMO_GSUP_MSGT_ROUTING_ERROR,
+		.imsi = "987654321",
+		.message_class = OSMO_GSUP_MESSAGE_CLASS_INTER_MSC,
+		.destination_name = (uint8_t*)destination_name,
+		.destination_name_len = strlen(destination_name) + 1,
+		.sm_rp_mr = &other_sm_rp_mr,
+		.session_id = 11,
+		.session_state = OSMO_GSUP_SESSION_STATE_END,
+	};
+	void *name_ctx = talloc_named_const(ctx, 0, __func__);
+	int error;
+	int final;
+	char *nonempty_str;
+	int rc;
+
+	printf("\n%s()\n", __func__);
+	printf("rx = %s\n", osmo_gsup_message_to_str_c(name_ctx, &rx));
+
+	printf("\nwriting to an empty struct osmo_gsup_message should populate values as needed:\n");
+	for (error = 0; error <= 1; error++) {
+		for (final = 0; final <= 1; final++) {
+			struct osmo_gsup_message target = {};
+			printf("- args (error=%d, final=%d)\n", error, final);
+			rc = osmo_gsup_make_response(&target, &rx, error, final);
+			printf("  %s\n", osmo_gsup_message_to_str_c(name_ctx, &target));
+			printf("  rc = %d\n", rc);
+		}
+	}
+
+	printf("\nwriting to an already populated struct osmo_gsup_message, should have no effect:\n");
+	nonempty_str = osmo_gsup_message_to_str_c(name_ctx, &nonempty);
+	for (error = 0; error <= 1; error++) {
+		for (final = 0; final <= 1; final++) {
+			struct osmo_gsup_message target = nonempty;
+			char *result;
+			printf("- args (error=%d, final=%d)\n", error, final);
+			rc = osmo_gsup_make_response(&target, &rx, error, final);
+			result = osmo_gsup_message_to_str_c(name_ctx, &target);
+			printf("  %s\n", result);
+			if (strcmp(result, nonempty_str))
+				printf("  ERROR: expected: %s\n", nonempty_str);
+			printf("  rc = %d\n", rc);
+		}
+	}
+}
+
+const struct log_info_cat default_categories[] = {
+};
+
+static struct log_info info = {
+	.cat = default_categories,
+	.num_cat = ARRAY_SIZE(default_categories),
+};
+
+int main(int argc, char **argv)
+{
+	ctx = talloc_named_const(NULL, 0, "gsup_test");
+	osmo_init_logging2(ctx, &info);
+	log_set_print_filename(osmo_stderr_target, 0);
+	log_set_print_timestamp(osmo_stderr_target, 0);
+	log_set_use_color(osmo_stderr_target, 0);
+	log_set_print_category(osmo_stderr_target, 1);
+
+	test_gsup_make_response();
+
+	printf("Done.\n");
+	return EXIT_SUCCESS;
+}