From 4ece5b70d2de4a771b090eb20682e532fb59c09d Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Fri, 23 Sep 2016 16:59:35 -0400
Subject: [PATCH] ceph_test_objectstore: add a test

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/test/objectstore/store_test.cc | 49 ++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/src/test/objectstore/store_test.cc b/src/test/objectstore/store_test.cc
index 54ece21aefb3..d906ecb1c043 100644
--- a/src/test/objectstore/store_test.cc
+++ b/src/test/objectstore/store_test.cc
@@ -3951,6 +3951,55 @@ TEST_P(StoreTest, SyntheticMatrixSharding) {
   do_matrix(m, store);
 }
 
+TEST_P(StoreTest, ZipperPatternSharded) {
+  if(string(GetParam()) != "bluestore")
+    return;
+  g_conf->set_val("bluestore_min_alloc_size", "4096");
+  g_ceph_context->_conf->apply_changes(NULL);
+  int r = store->umount();
+  ASSERT_EQ(r, 0);
+  r = store->mount(); //to force min_alloc_size update
+  ASSERT_EQ(r, 0);
+
+  ObjectStore::Sequencer osr("test");
+  coll_t cid;
+  ghobject_t a(hobject_t(sobject_t("Object 1", CEPH_NOSNAP)));
+  {
+    ObjectStore::Transaction t;
+    t.create_collection(cid, 0);
+    cerr << "Creating collection " << cid << std::endl;
+    r = apply_transaction(store, &osr, std::move(t));
+    ASSERT_EQ(r, 0);
+  }
+  bufferlist bl;
+  int len = 4096;
+  bufferptr bp(len);
+  bp.zero();
+  bl.append(bp);
+  for (int i=0; i<1000; ++i) {
+    ObjectStore::Transaction t;
+    t.write(cid, a, i*2*len, len, bl, 0);
+    r = apply_transaction(store, &osr, std::move(t));
+    ASSERT_EQ(r, 0);
+  }
+  for (int i=0; i<1000; ++i) {
+    ObjectStore::Transaction t;
+    t.write(cid, a, i*2*len + 1, len, bl, 0);
+    r = apply_transaction(store, &osr, std::move(t));
+    ASSERT_EQ(r, 0);
+  }
+  {
+    ObjectStore::Transaction t;
+    t.remove(cid, a);
+    t.remove_collection(cid);
+    cerr << "Cleaning" << std::endl;
+    r = apply_transaction(store, &osr, std::move(t));
+    ASSERT_EQ(r, 0);
+  }
+  g_conf->set_val("bluestore_min_alloc_size", "0");
+  g_ceph_context->_conf->apply_changes(NULL);
+}
+
 TEST_P(StoreTest, SyntheticMatrixCsumAlgorithm) {
   if (string(GetParam()) != "bluestore")
     return;
-- 
2.47.3