[v2,2/8] tests: Add uuid tests

diff --git a/tests/Makefile.include b/tests/Makefile.include
index ebecfa4..d46f3a5 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -111,6 +111,7 @@  check-unit-y += tests/test-crypto-xts$(EXESUF)
 check-unit-y += tests/test-crypto-block$(EXESUF)
 gcov-files-test-logging-y = tests/test-logging.c
 check-unit-y += tests/test-logging$(EXESUF)
+check-unit-y += tests/test-uuid$(EXESUF)
 
 check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
 
@@ -629,6 +630,7 @@  tests/test-filter-mirror$(EXESUF): tests/test-filter-mirror.o $(qtest-obj-y)
 tests/test-filter-redirector$(EXESUF): tests/test-filter-redirector.o $(qtest-obj-y)
 tests/ivshmem-test$(EXESUF): tests/ivshmem-test.o contrib/ivshmem-server/ivshmem-server.o $(libqos-pc-obj-y)
 tests/vhost-user-bridge$(EXESUF): tests/vhost-user-bridge.o
+tests/test-uuid$(EXESUF): tests/test-uuid.o $(test-util-obj-y)
 
 tests/migration/stress$(EXESUF): tests/migration/stress.o
 	$(call quiet-command, $(LINKPROG) -static -O3 $(PTHREAD_LIB) -o $@ $< ,"  LINK  $(TARGET_DIR)$@")
diff --git a/tests/test-uuid.c b/tests/test-uuid.c
new file mode 100644
index 0000000..05a40fd
--- /dev/null
+++ b/tests/test-uuid.c
@@ -0,0 +1,110 @@ 
+/*
+ * QEMU UUID Library
+ *
+ * Copyright (c) 2016 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/uuid.h"
+
+struct { const char *uuidstr; QemuUUID uuid; } uuid_test_data[] = {
+    {
+        "586ece27-7f09-41e0-9e74-e901317e9d42",
+        {0x58, 0x6e, 0xce, 0x27, 0x7f, 0x09, 0x41, 0xe0,
+         0x9e, 0x74, 0xe9, 0x01, 0x31, 0x7e, 0x9d, 0x42},
+    }, {
+        "0cc6c752-3961-4028-a286-c05cc616d396",
+        {0x0c, 0xc6, 0xc7, 0x52, 0x39, 0x61, 0x40, 0x28,
+         0xa2, 0x86, 0xc0, 0x5c, 0xc6, 0x16, 0xd3, 0x96}
+    }, {
+        "00000000-0000-0000-0000-000000000000",
+        { 0 },
+    }
+};
+
+static inline bool uuid_is_valid(QemuUUID uuid)
+{
+    return qemu_uuid_is_null(uuid) ||
+            ((uuid[6] & 0xf0) == 0x40 && (uuid[8] & 0xc0) == 0x80);
+}
+
+static void test_uuid_generate(void)
+{
+    QemuUUID uuid;
+    int i;
+
+    for (i = 0; i < 100; ++i) {
+        qemu_uuid_generate(uuid);
+        g_assert(uuid_is_valid(uuid));
+    }
+}
+
+static void test_uuid_parse(void)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(uuid_test_data); i++) {
+        QemuUUID uuid;
+
+        qemu_uuid_parse(uuid_test_data[i].uuidstr, uuid);
+        g_assert_cmpmem(uuid_test_data[i].uuid, sizeof(uuid),
+                        uuid, sizeof(uuid));
+        g_assert(uuid_is_valid(uuid));
+    }
+}
+
+static void test_uuid_unparse(void)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(uuid_test_data); i++) {
+        char out[strlen(UUID_FMT)];
+
+        qemu_uuid_unparse(uuid_test_data[i].uuid, out);
+        g_assert_cmpmem(uuid_test_data[i].uuidstr, UUID_FMT_LEN,
+                        out, UUID_FMT_LEN);
+    }
+}
+
+static void test_uuid_is_null(void)
+{
+    QemuUUID uuid_null = { 0 };
+    QemuUUID uuid_not_null = {
+        0x58, 0x6e, 0xce, 0x27, 0x7f, 0x09, 0x41, 0xe0,
+        0x9e, 0x74, 0xe9, 0x01, 0x31, 0x7e, 0x9d, 0x42
+    };
+    QemuUUID uuid_not_null_2 = { 1 };
+
+    g_assert(qemu_uuid_is_null(uuid_null));
+    g_assert_false(qemu_uuid_is_null(uuid_not_null));
+    g_assert_false(qemu_uuid_is_null(uuid_not_null_2));
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+    g_test_add_func("/uuid/generate",
+                    test_uuid_generate);
+    g_test_add_func("/uuid/is_null",
+                    test_uuid_is_null);
+    g_test_add_func("/uuid/parse",
+                    test_uuid_parse);
+    g_test_add_func("/uuid/unparse",
+                    test_uuid_unparse);
+
+    return g_test_run();
+}