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diff --git a/src/ceph/src/test/common/test_iso_8601.cc b/src/ceph/src/test/common/test_iso_8601.cc
new file mode 100644
index 0000000..dbb3aa2
--- /dev/null
+++ b/src/ceph/src/test/common/test_iso_8601.cc
@@ -0,0 +1,60 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2017 Red Hat <contact@redhat.com>
+ *
+ * LGPL2.1 (see COPYING-LGPL2.1) or later
+ */
+
+#include <chrono>
+
+#include <gtest/gtest.h>
+
+#include "common/ceph_time.h"
+#include "common/iso_8601.h"
+
+using std::chrono::minutes;
+using std::chrono::seconds;
+using std::chrono::time_point_cast;
+
+using ceph::from_iso_8601;
+using ceph::iso_8601_format;
+using ceph::real_clock;
+using ceph::real_time;
+using ceph::to_iso_8601;
+
+TEST(iso_8601, epoch) {
+  const auto epoch = real_clock::from_time_t(0);
+
+  ASSERT_EQ("1970", to_iso_8601(epoch, iso_8601_format::Y));
+  ASSERT_EQ("1970-01", to_iso_8601(epoch, iso_8601_format::YM));
+  ASSERT_EQ("1970-01-01", to_iso_8601(epoch, iso_8601_format::YMD));
+  ASSERT_EQ("1970-01-01T00Z", to_iso_8601(epoch, iso_8601_format::YMDh));
+  ASSERT_EQ("1970-01-01T00:00Z", to_iso_8601(epoch, iso_8601_format::YMDhm));
+  ASSERT_EQ("1970-01-01T00:00:00Z",
+	    to_iso_8601(epoch, iso_8601_format::YMDhms));
+  ASSERT_EQ("1970-01-01T00:00:00.000000000Z",
+	    to_iso_8601(epoch, iso_8601_format::YMDhmsn));
+
+  ASSERT_EQ(epoch, *from_iso_8601("1970"));
+  ASSERT_EQ(epoch, *from_iso_8601("1970-01"));
+  ASSERT_EQ(epoch, *from_iso_8601("1970-01-01"));
+  ASSERT_EQ(epoch, *from_iso_8601("1970-01-01T00:00Z"));
+  ASSERT_EQ(epoch, *from_iso_8601("1970-01-01T00:00:00Z"));
+  ASSERT_EQ(epoch, *from_iso_8601("1970-01-01T00:00:00.000000000Z"));
+}
+
+TEST(iso_8601, now) {
+  const auto now = real_clock::now();
+
+  ASSERT_EQ(real_time(time_point_cast<minutes>(now)),
+	    *from_iso_8601(to_iso_8601(now, iso_8601_format::YMDhm)));
+  ASSERT_EQ(real_time(time_point_cast<seconds>(now)),
+	    *from_iso_8601(
+	      to_iso_8601(now, iso_8601_format::YMDhms)));
+  ASSERT_EQ(now,
+	    *from_iso_8601(
+	      to_iso_8601(now, iso_8601_format::YMDhmsn)));
+}