Add loadSOSafelyThrowIfRelativePath test (#14311)

src/inference/tests/functional/ov_shared_object_test.cpp

@@ -60,3 +60,9 @@ TEST_F(SharedObjectOVTests, canCallExistedMethod) {
     std::shared_ptr<InferenceEngine::IInferencePlugin> ptr;
     EXPECT_NO_THROW(factory(ptr));
 }
+
+TEST_F(SharedObjectOVTests, loadSOSafelyThrowIfOnlyLibName) {
+    std::string libraryName = FileUtils::makePluginLibraryName<char>({}, std::string("mock_engine") + IE_BUILD_POSTFIX);
+
+    EXPECT_THROW(ov::util::load_shared_object_safely(libraryName.c_str()), std::runtime_error);
+}