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diff --git a/src/ceph/src/test/test_striper.cc b/src/ceph/src/test/test_striper.cc
new file mode 100644
index 0000000..200c227
--- /dev/null
+++ b/src/ceph/src/test/test_striper.cc
@@ -0,0 +1,72 @@
+#include "gtest/gtest.h"
+#include "global/global_context.h"
+
+#include "osdc/Striper.h"
+
+TEST(Striper, Stripe1)
+{
+  file_layout_t l;
+
+  l.object_size = 262144;
+  l.stripe_unit = 4096;
+  l.stripe_count = 3;
+
+  vector<ObjectExtent> ex;
+  Striper::file_to_extents(g_ceph_context, 1, &l, 5006035, 46419, 5006035, ex);
+
+  cout << "result " << ex << std::endl;
+
+  ASSERT_EQ(3u, ex.size());
+  ASSERT_EQ(98304u, ex[0].truncate_size);
+  ASSERT_EQ(ex[1].offset, ex[1].truncate_size);
+  ASSERT_EQ(94208u, ex[2].truncate_size);
+}
+
+TEST(Striper, EmptyPartialResult)
+{
+  file_layout_t l;
+
+  l.object_size = 4194304;
+  l.stripe_unit = 4194304;
+  l.stripe_count = 1;
+
+  vector<ObjectExtent> ex;
+  Striper::file_to_extents(g_ceph_context, 1, &l, 725549056, 131072, 72554905600, ex);
+  cout << "ex " << ex << std::endl;
+  ASSERT_EQ(2u, ex.size());
+
+  Striper::StripedReadResult r;
+
+  bufferlist bl;
+  r.add_partial_result(g_ceph_context, bl, ex[1].buffer_extents);
+
+  bufferptr bp(65536);
+  bp.zero();
+  bl.append(bp);
+
+  r.add_partial_result(g_ceph_context, bl, ex[0].buffer_extents);
+
+  bufferlist outbl;
+  r.assemble_result(g_ceph_context, outbl, false);
+
+  ASSERT_EQ(65536u, outbl.length());
+}
+
+TEST(Striper, GetNumObj)
+{
+  file_layout_t l;
+
+  l.object_size = 262144;
+  l.stripe_unit = 4096;
+  l.stripe_count = 3;
+  uint64_t size,numobjs;
+  size = 6999;
+  numobjs = Striper::get_num_objects(l, size);
+  ASSERT_EQ(2u, numobjs);
+  size = 793320;
+  numobjs = Striper::get_num_objects(l, size);
+  ASSERT_EQ(5u, numobjs);
+  size = 805608;
+  numobjs = Striper::get_num_objects(l, size);
+  ASSERT_EQ(6u, numobjs);
+}