summaryrefslogtreecommitdiffstats
path: root/src/test/osd/TestECBackend.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/osd/TestECBackend.cc')
-rw-r--r--src/test/osd/TestECBackend.cc60
1 files changed, 60 insertions, 0 deletions
diff --git a/src/test/osd/TestECBackend.cc b/src/test/osd/TestECBackend.cc
new file mode 100644
index 00000000..affff369
--- /dev/null
+++ b/src/test/osd/TestECBackend.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) 2013 Inktank Storage, Inc.
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include <iostream>
+#include <sstream>
+#include <errno.h>
+#include <signal.h>
+#include "osd/ECBackend.h"
+#include "gtest/gtest.h"
+
+TEST(ECUtil, stripe_info_t)
+{
+ const uint64_t swidth = 4096;
+ const uint64_t ssize = 4;
+
+ ECUtil::stripe_info_t s(ssize, swidth);
+ ASSERT_EQ(s.get_stripe_width(), swidth);
+
+ ASSERT_EQ(s.logical_to_next_chunk_offset(0), 0u);
+ ASSERT_EQ(s.logical_to_next_chunk_offset(1), s.get_chunk_size());
+ ASSERT_EQ(s.logical_to_next_chunk_offset(swidth - 1),
+ s.get_chunk_size());
+
+ ASSERT_EQ(s.logical_to_prev_chunk_offset(0), 0u);
+ ASSERT_EQ(s.logical_to_prev_chunk_offset(swidth), s.get_chunk_size());
+ ASSERT_EQ(s.logical_to_prev_chunk_offset((swidth * 2) - 1),
+ s.get_chunk_size());
+
+ ASSERT_EQ(s.logical_to_next_stripe_offset(0), 0u);
+ ASSERT_EQ(s.logical_to_next_stripe_offset(swidth - 1),
+ s.get_stripe_width());
+
+ ASSERT_EQ(s.logical_to_prev_stripe_offset(swidth), s.get_stripe_width());
+ ASSERT_EQ(s.logical_to_prev_stripe_offset(swidth), s.get_stripe_width());
+ ASSERT_EQ(s.logical_to_prev_stripe_offset((swidth * 2) - 1),
+ s.get_stripe_width());
+
+ ASSERT_EQ(s.aligned_logical_offset_to_chunk_offset(2*swidth),
+ 2*s.get_chunk_size());
+ ASSERT_EQ(s.aligned_chunk_offset_to_logical_offset(2*s.get_chunk_size()),
+ 2*s.get_stripe_width());
+
+ ASSERT_EQ(s.aligned_offset_len_to_chunk(make_pair(swidth, 10*swidth)),
+ make_pair(s.get_chunk_size(), 10*s.get_chunk_size()));
+
+ ASSERT_EQ(s.offset_len_to_stripe_bounds(make_pair(swidth-10, (uint64_t)20)),
+ make_pair((uint64_t)0, 2*swidth));
+}
+