Add test for simox::random::choice()

SimoxUtility/tests/CMakeLists.txt

@@ -45,6 +45,7 @@ ADD_SUBDIRECTORY(filesystem)
 ADD_SUBDIRECTORY(json)
 ADD_SUBDIRECTORY(math)
 ADD_SUBDIRECTORY(meta)
+ADD_SUBDIRECTORY(random)
 ADD_SUBDIRECTORY(shapes)
 ADD_SUBDIRECTORY(simox)
 ADD_SUBDIRECTORY(backport)

SimoxUtility/tests/random/CMakeLists.txt

+
+ADD_SU_TEST( Choice )
+

SimoxUtility/tests/random/Choice.cpp

+/*
+ * This file is part of ArmarX.
+ *
+ * ArmarX is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * ArmarX 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, see <http://www.gnu.org/licenses/>.
+ *
+ * @package    RobotAPI::ArmarXObjects::FrameTracking
+ * @author     Adrian Knobloch ( adrian dot knobloch at student dot kit dot edu )
+ * @date       2019
+ * @copyright  http://www.gnu.org/licenses/gpl-2.0.txt
+ *             GNU General Public License
+ */
+
+#define BOOST_TEST_MODULE SimoxUtility/color/ColorMap
+
+#include <boost/test/included/unit_test.hpp>
+
+#include <SimoxUtility/random/choice.h>
+
+#include <iostream>
+
+
+namespace ChoiceTest
+{
+
+struct Fixture
+{
+    Fixture()
+    {
+    }
+    ~Fixture()
+    {
+    }
+};
+
+}
+
+
+BOOST_FIXTURE_TEST_SUITE(ChoiceTest, ChoiceTest::Fixture)
+
+
+BOOST_AUTO_TEST_CASE(test_choice)
+{
+    std::vector<std::string> items { "a", "b", "c" };
+
+    for (int i = 0; i < 100; ++i)
+    {
+        std::string chosen = simox::random::choice(items);
+        BOOST_CHECK(std::find(items.begin(), items.end(), chosen) != items.end());
+    }
+}
+
+
+BOOST_AUTO_TEST_CASE(test_choice_empty)
+{
+    std::vector<std::string> items;
+    BOOST_CHECK_THROW(simox::random::choice(items), simox::error::SimoxError);
+}
+
+
+BOOST_AUTO_TEST_SUITE_END()