Add a small set of unit tests for session handling.

Makefile.am

@@ -378,6 +378,7 @@ tests_check_main_SOURCES = \
 	tests/check_input_all.c \
 	tests/check_input_binary.c \
 	tests/check_output_all.c \
+	tests/check_session.c \
 	tests/check_strutil.c \
 	tests/check_version.c \
 	tests/check_driver_all.c

tests/check_main.c

@@ -38,6 +38,7 @@ int main(void)
 	srunner_add_suite(srunner, suite_input_all());
 	srunner_add_suite(srunner, suite_input_binary());
 	srunner_add_suite(srunner, suite_output_all());
+	srunner_add_suite(srunner, suite_session());
 	srunner_add_suite(srunner, suite_strutil());
 	srunner_add_suite(srunner, suite_version());
 

tests/check_session.c

@@ -0,0 +1,156 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2014 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <check.h>
+#include "../include/libsigrok/libsigrok.h"
+#include "lib.h"
+
+static struct sr_context *sr_ctx;
+
+static void setup(void)
+{
+	int ret;
+
+	ret = sr_init(&sr_ctx);
+	fail_unless(ret == SR_OK, "sr_init() failed: %d.", ret);
+}
+
+static void teardown(void)
+{
+	int ret;
+
+	ret = sr_exit(sr_ctx);
+	fail_unless(ret == SR_OK, "sr_exit() failed: %d.", ret);
+}
+
+/*
+ * Check whether sr_session_new() works.
+ * If it returns != SR_OK (or segfaults) this test will fail.
+ */
+START_TEST(test_session_new)
+{
+	int ret;
+	struct sr_session *sess;
+
+	ret = sr_session_new(&sess);
+	fail_unless(ret == SR_OK, "sr_session_new() failed: %d.", ret);
+	sr_session_destroy(sess);
+}
+END_TEST
+
+/*
+ * Check whether sr_session_new() fails for bogus parameters.
+ * If it returns SR_OK (or segfaults) this test will fail.
+ */
+START_TEST(test_session_new_bogus)
+{
+	int ret;
+
+	ret = sr_session_new(NULL);
+	fail_unless(ret != SR_OK, "sr_session_new(NULL) worked.");
+}
+END_TEST
+
+/*
+ * Check whether multiple sr_session_new() calls work.
+ * If any call returns != SR_OK (or segfaults) this test will fail.
+ */
+START_TEST(test_session_new_multiple)
+{
+	int ret;
+	struct sr_session *sess1, *sess2, *sess3;
+
+	sess1 = sess2 = sess3 = NULL;
+
+	/* Multiple sr_session_new() calls must work. */
+	ret = sr_session_new(&sess1);
+	fail_unless(ret == SR_OK, "sr_session_new() 1 failed: %d.", ret);
+	ret = sr_session_new(&sess2);
+	fail_unless(ret == SR_OK, "sr_session_new() 2 failed: %d.", ret);
+	ret = sr_session_new(&sess3);
+	fail_unless(ret == SR_OK, "sr_session_new() 3 failed: %d.", ret);
+
+	/* The returned session pointers must all be non-NULL. */
+	fail_unless(sess1 != NULL);
+	fail_unless(sess2 != NULL);
+	fail_unless(sess3 != NULL);
+
+	/* The returned session pointers must not be the same. */
+	fail_unless(sess1 != sess2);
+	fail_unless(sess1 != sess3);
+	fail_unless(sess2 != sess3);
+
+	/* Destroying any of the sessions must work. */
+	ret = sr_session_destroy(sess1);
+	fail_unless(ret == SR_OK, "sr_session_destroy() 1 failed: %d.", ret);
+	ret = sr_session_destroy(sess2);
+	fail_unless(ret == SR_OK, "sr_session_destroy() 2 failed: %d.", ret);
+	ret = sr_session_destroy(sess3);
+	fail_unless(ret == SR_OK, "sr_session_destroy() 3 failed: %d.", ret);
+}
+END_TEST
+
+/*
+ * Check whether sr_session_destroy() works.
+ * If it returns != SR_OK (or segfaults) this test will fail.
+ */
+START_TEST(test_session_destroy)
+{
+	int ret;
+	struct sr_session *sess;
+
+	sr_session_new(&sess);
+	ret = sr_session_destroy(sess);
+	fail_unless(ret == SR_OK, "sr_session_destroy() failed: %d.", ret);
+}
+END_TEST
+
+/*
+ * Check whether sr_session_destroy() fails for bogus sessions.
+ * If it returns SR_OK (or segfaults) this test will fail.
+ */
+START_TEST(test_session_destroy_bogus)
+{
+	int ret;
+
+	ret = sr_session_destroy(NULL);
+	fail_unless(ret != SR_OK, "sr_session_destroy() worked.");
+}
+END_TEST
+
+Suite *suite_session(void)
+{
+	Suite *s;
+	TCase *tc;
+
+	s = suite_create("session");
+
+	tc = tcase_create("new_destroy");
+	tcase_add_checked_fixture(tc, setup, teardown);
+	tcase_add_test(tc, test_session_new);
+	tcase_add_test(tc, test_session_new_bogus);
+	tcase_add_test(tc, test_session_new_multiple);
+	tcase_add_test(tc, test_session_destroy);
+	tcase_add_test(tc, test_session_destroy_bogus);
+	suite_add_tcase(s, tc);
+
+	return s;
+}

tests/lib.h

@@ -45,6 +45,7 @@ Suite *suite_driver_all(void);
 Suite *suite_input_all(void);
 Suite *suite_input_binary(void);
 Suite *suite_output_all(void);
+Suite *suite_session(void);
 Suite *suite_strutil(void);
 Suite *suite_version(void);