tests FEATURE basic external plugins tests
diff --git a/tests/utests/basic/test_plugins.c b/tests/utests/basic/test_plugins.c
new file mode 100644
index 0000000..015d4b0
--- /dev/null
+++ b/tests/utests/basic/test_plugins.c
@@ -0,0 +1,95 @@
+/*
+ * @file set.c
+ * @author: Radek Krejci <rkrejci@cesnet.cz>
+ * @brief unit tests for functions from set.c
+ *
+ * Copyright (c) 2018 CESNET, z.s.p.o.
+ *
+ * This source code is licensed under BSD 3-Clause License (the "License").
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ */
+#define _UTEST_MAIN_
+#include "utests.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "config.h"
+#include "plugins.h"
+#include "plugins_internal.h"
+
+const char *simple = "module libyang-plugins-simple {"
+ " namespace urn:libyang:tests:plugins:simple;"
+ " prefix s;"
+ " typedef note { type string; }"
+ " extension hint { argument value; }"
+ " leaf test {"
+ " type s:note {length 255;}"
+ " s:hint \"some hint here\";"
+ " }"
+ "}";
+
+static void
+test_add_invalid(void **state)
+{
+ assert_int_equal(LY_ESYS, lyplg_add(TESTS_BIN "/plugins/plugin_does_not_exist" LYPLG_SUFFIX));
+
+#ifdef __APPLE__
+ CHECK_LOG("Loading \""TESTS_BIN "/plugins/plugin_does_not_exist" LYPLG_SUFFIX "\" as a plugin failed "
+ "(dlopen("TESTS_BIN "/plugins/plugin_does_not_exist" LYPLG_SUFFIX ", 2): image not found).", NULL);
+#else
+ CHECK_LOG("Loading \""TESTS_BIN "/plugins/plugin_does_not_exist" LYPLG_SUFFIX "\" as a plugin failed "
+ "("TESTS_BIN "/plugins/plugin_does_not_exist" LYPLG_SUFFIX ": cannot open shared object file: "
+ "No such file or directory).", NULL);
+#endif
+
+ assert_int_equal(LY_EINVAL, lyplg_add(TESTS_BIN "/plugins/plugin_invalid" LYPLG_SUFFIX));
+#ifndef __APPLE__
+ /* OS X prints address of the symbol being searched and cmocka doesn't support wildcards in string checking assert */
+ CHECK_LOG("Processing user type plugin \""TESTS_BIN "/plugins/plugin_invalid"LYPLG_SUFFIX "\" failed, "
+ "missing type plugins information ("TESTS_BIN "/plugins/plugin_invalid"LYPLG_SUFFIX ": "
+ "undefined symbol: plugins_types__).", NULL);
+#endif
+}
+
+static void
+test_add_simple(void **state)
+{
+ const struct lys_module *mod;
+ struct lysc_node_leaf *leaf;
+ struct lyplg_ext *plugin_e;
+ struct lyplg_type *plugin_t;
+
+ assert_int_equal(LY_SUCCESS, lyplg_add(TESTS_BIN "/plugins/plugin_simple" LYPLG_SUFFIX));
+
+ UTEST_ADD_MODULE(simple, LYS_IN_YANG, NULL, &mod);
+
+ leaf = (struct lysc_node_leaf *)mod->compiled->data;
+ assert_int_equal(LYS_LEAF, leaf->nodetype);
+
+ assert_non_null(plugin_t = lyplg_find(LYPLG_TYPE, "libyang-plugins-simple", NULL, "note"));
+ assert_string_equal("libyang 2 - simple test, version 1", plugin_t->id);
+ assert_ptr_equal(leaf->type->plugin, plugin_t);
+
+ assert_int_equal(1, LY_ARRAY_COUNT(leaf->exts));
+ assert_non_null(plugin_e = lyplg_find(LYPLG_EXTENSION, "libyang-plugins-simple", NULL, "hint"));
+ assert_string_equal("libyang 2 - simple test, version 1", plugin_e->id);
+ assert_ptr_equal(leaf->exts[0].def->plugin, plugin_e);
+
+ /* the second loading of the same plugin - still success */
+ assert_int_equal(LY_SUCCESS, lyplg_add(TESTS_BIN "/plugins/plugin_simple" LYPLG_SUFFIX));
+}
+
+int
+main(void)
+{
+ const struct CMUnitTest tests[] = {
+ UTEST(test_add_invalid),
+ UTEST(test_add_simple),
+ };
+
+ return cmocka_run_group_tests(tests, NULL, NULL);
+}