Fixed Windows get_time_since_epoch() typo and added test

src/get_time.cpp

@@ -32,7 +32,7 @@ uint64_t get_time_since_epoch() {
   _FILETIME ft;
   GetSystemTimeAsFileTime(&ft);
   uint64_t ns100 = (static_cast<uint64_t>(ft.dwHighDateTime) << 32 |
-                    static_cast<uint64_t>(ft.dwHighDateTime)) -
+                    static_cast<uint64_t>(ft.dwLowDateTime)) -
                    116444736000000000LL; // 100 nanosecond increments between
                                          // Jan. 1, 1601 - Jan. 1, 1970
   return ns100 / 10000;                  // 100 nanoseconds to milliseconds

test/integration_tests/src/uuids.cpp

@@ -0,0 +1,50 @@
+/*
+  Copyright (c) 2014 DataStax
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#define BOOST_TEST_DYN_LINK
+#ifdef STAND_ALONE
+#   define BOOST_TEST_MODULE cassandra
+#endif
+
+#include "cassandra.h"
+
+#include <boost/chrono.hpp>
+#include <boost/test/unit_test.hpp>
+#include <boost/thread.hpp>
+
+BOOST_AUTO_TEST_SUITE(uuids)
+
+BOOST_AUTO_TEST_CASE(v1)
+{
+  CassUuid uuid;
+  cass_uuid_generate_time(uuid);
+  BOOST_CHECK(cass_uuid_version(uuid) == 1);
+
+  cass_uint64_t last_ts = cass_uuid_timestamp(uuid);
+
+  for (int i = 0; i < 10; ++i) {
+    boost::this_thread::sleep_for(boost::chrono::milliseconds(1));
+    cass_uuid_generate_time(uuid);
+
+    cass_uint64_t ts = cass_uuid_timestamp(uuid);
+
+    BOOST_CHECK(cass_uuid_version(uuid) == 1);
+    BOOST_CHECK(ts > last_ts);
+    last_ts = ts;
+  }
+}
+
+BOOST_AUTO_TEST_SUITE_END()