src/test: add ManifestEvictPromote unit test

To verify that the manifest object works correctly when
read is called after tier_evict is done, ManifestEvictPromote is added

Signed-off-by: Myoungwon Oh <myoungwon.oh@samsung.com>

diff --git a/src/test/librados/tier_cxx.cc b/src/test/librados/tier_cxx.cc
index fd342e5c3380c9f8aeac78dd5292108b1a6dbfc2..d4a2a1b503bb01768d1d588c647e93da969e0b31 100644 (file)
--- a/src/test/librados/tier_cxx.cc
+++ b/src/test/librados/tier_cxx.cc
@@ -4627,6 +4627,101 @@ TEST_F(LibRadosTwoPoolsPP, ManifestEvict) {
 
 }
 
+TEST_F(LibRadosTwoPoolsPP, ManifestEvictPromote) {
+  // skip test if not yet octopus
+  if (_get_required_osd_release(cluster) < "octopus") {
+    cout << "cluster is not yet octopus, skipping test" << std::endl;
+    return;
+  }
+
+  // create object
+  {
+    bufferlist bl;
+    bl.append("there hiHI");
+    ObjectWriteOperation op;
+    op.write_full(bl);
+    ASSERT_EQ(0, ioctx.operate("foo", &op));
+  }
+  {
+    bufferlist bl;
+    bl.append("EREHT hiHI");
+    ObjectWriteOperation op;
+    op.write_full(bl);
+    ASSERT_EQ(0, cache_ioctx.operate("chunk1", &op));
+  }
+  {
+    bufferlist bl;
+    bl.append("there hiHI");
+    ObjectWriteOperation op;
+    op.write_full(bl);
+    ASSERT_EQ(0, cache_ioctx.operate("chunk2", &op));
+  }
+  {
+    bufferlist bl;
+    bl.append("THERE HIHI");
+    ObjectWriteOperation op;
+    op.write_full(bl);
+    ASSERT_EQ(0, cache_ioctx.operate("chunk3", &op));
+  }
+
+  // wait for maps to settle
+  cluster.wait_for_latest_osdmap();
+
+  // create a snapshot, clone
+  vector<uint64_t> my_snaps(1);
+  ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+  ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+       my_snaps));
+
+  {
+    bufferlist bl;
+    bl.append("there");
+    ASSERT_EQ(0, ioctx.write("foo", bl, bl.length(), 0));
+  }
+
+  // set-chunk 
+  manifest_set_chunk(cluster, cache_ioctx, ioctx, 0, 2, "chunk1", "foo");
+  manifest_set_chunk(cluster, cache_ioctx, ioctx, 8, 2, "chunk2", "foo");
+  // foo snap[0]:  
+  // foo head   :  [chunk1]                           [chunk2]
+
+  ioctx.snap_set_read(my_snaps[0]);
+  // set-chunk 
+  manifest_set_chunk(cluster, cache_ioctx, ioctx, 0, 10, "chunk3", "foo");
+  // foo snap[0]: [                  chunk3                   ] 
+  // foo head   : [chunk1]                             [chunk2]
+ 
+
+  {
+    ObjectReadOperation op, stat_op;
+    uint64_t size;
+    op.tier_evict();
+    librados::AioCompletion *completion = cluster.aio_create_completion();
+    ASSERT_EQ(0, ioctx.aio_operate(
+       "foo", completion, &op,
+       librados::OPERATION_IGNORE_OVERLAY, NULL));
+    completion->wait_for_complete();
+    ASSERT_EQ(0, completion->get_return_value());
+
+    stat_op.stat(&size, NULL, NULL);
+    ASSERT_EQ(0, ioctx.operate("foo", &stat_op, NULL));
+    ASSERT_EQ(10, size);
+    
+  }
+  {
+    bufferlist bl;
+    ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+    ASSERT_EQ('T', bl[0]);
+  }
+
+  ioctx.snap_set_read(librados::SNAP_HEAD);
+  {
+    bufferlist bl;
+    ASSERT_EQ(10, ioctx.read("foo", bl, 10, 0));
+    ASSERT_EQ('H', bl[8]);
+  }
+}
+
 
 TEST_F(LibRadosTwoPoolsPP, ManifestSnapSizeMismatch) {
   // skip test if not yet octopus