--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/libserver/id/main.cpp	Tue Mar 22 18:26:05 2016 +0100
@@ -0,0 +1,171 @@
+/*
+ * main.cpp -- test Id
+ *
+ * Copyright (c) 2013-2016 Malikania Authors
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <cstdint>
+#include <thread>
+
+#include <gtest/gtest.h>
+
+#include <malikania/Id.h>
+
+using namespace malikania;
+
+/* --------------------------------------------------------
+ * Basic use case
+ * -------------------------------------------------------- */
+
+class TestId : public testing::Test {
+protected:
+	IdGen<unsigned> m_idgen;
+
+public:
+	~TestId()
+	{
+		m_idgen.reset();
+	}
+};
+
+TEST_F(TestId, simple)
+{
+	ASSERT_EQ(0U, m_idgen.next());
+	ASSERT_EQ(1U, m_idgen.next());
+	ASSERT_EQ(2U, m_idgen.next());
+	ASSERT_EQ(3U, m_idgen.next());
+	ASSERT_EQ(4U, m_idgen.next());
+}
+
+TEST_F(TestId, reset)
+{
+	m_idgen.next();
+	m_idgen.next();
+	m_idgen.next();
+
+	m_idgen.reset();
+
+	ASSERT_EQ(0U, m_idgen.next());
+}
+
+TEST_F(TestId, release1)
+{
+	m_idgen.next();	// 0
+	m_idgen.next();	// 1
+	m_idgen.next();	// 2
+	m_idgen.release(1);
+
+	/*
+	 * 0 and 2 are currently in use.
+	 *
+	 * The next id must be 1 and then 3.
+	 */
+	ASSERT_EQ(1U, m_idgen.next());
+	ASSERT_EQ(3U, m_idgen.next());
+}
+
+TEST_F(TestId, release2)
+{
+	m_idgen.next();	// 0
+	m_idgen.next();	// 1
+	m_idgen.next();	// 2
+	m_idgen.release(1);
+	m_idgen.release(0);
+
+	/*
+	 * Only 2 is in use, next id must be:
+	 *
+	 * - 1
+	 * - 0
+	 * - 3
+	 */
+	ASSERT_EQ(1U, m_idgen.next());
+	ASSERT_EQ(0U, m_idgen.next());
+	ASSERT_EQ(3U, m_idgen.next());
+}
+
+/* --------------------------------------------------------
+ * Id RAII class
+ * -------------------------------------------------------- */
+
+TEST(IdLocker, basic)
+{
+	IdGen<int8_t> gen;
+	Id<int8_t> id(gen);
+
+	ASSERT_EQ(0, id);
+}
+
+TEST(IdLocker, two)
+{
+	IdGen<int8_t> gen;
+	Id<int8_t> id(gen);
+	Id<int8_t> id2(gen);
+
+	ASSERT_EQ(0, id);
+	ASSERT_EQ(1, id2);
+}
+
+TEST(IdLocker, already)
+{
+	IdGen<int8_t> gen;
+	Id<int8_t> id(gen, gen.next());
+
+	ASSERT_EQ(0, id);
+}
+
+/* --------------------------------------------------------
+ * Limit test
+ * -------------------------------------------------------- */
+
+TEST(Limits, max)
+{
+	IdGen<int8_t> idgen;
+	int8_t last;
+
+	try {
+		for (int i = 0; i < 127; ++i) {
+			last = idgen.next();
+		}
+	} catch (const std::exception &ex) {
+		FAIL() << ex.what();
+	}
+
+	ASSERT_EQ(126, last);
+}
+
+TEST(Limits, fail)
+{
+	IdGen<int8_t> idgen;
+	int8_t last;
+
+	try {
+		for (int i = 0; i < 200; ++i) {
+			last = idgen.next();
+		}
+
+		FAIL() << "Exception expected";
+	} catch (const std::exception &ex) {
+	}
+
+	ASSERT_EQ(126, last);
+}
+
+int main(int argc, char **argv)
+{
+	testing::InitGoogleTest(&argc, argv);
+
+	return RUN_ALL_TESTS();
+}