AU: when cutting a cycle, add proper dependencies.

delta_diff_generator_unittest.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <set>
 #include <string>
@@ skipping 266 matching lines @@
   EXPECT_EQ(1, graph[0].op.src_extents(1).num_blocks());
   EXPECT_EQ(7, graph[0].op.src_extents(2).start_block());
   EXPECT_EQ(1, graph[0].op.src_extents(2).num_blocks());
 
   // And that the old dst extents haven't changed
   EXPECT_EQ(2, graph[0].op.dst_extents_size());
   EXPECT_EQ(1, graph[0].op.dst_extents(0).start_block());
   EXPECT_EQ(2, graph[0].op.dst_extents(0).num_blocks());
   EXPECT_EQ(4, graph[0].op.dst_extents(1).start_block());
   EXPECT_EQ(1, graph[0].op.dst_extents(1).num_blocks());
-  
-  // Ensure it only depends on the next node
-  EXPECT_EQ(1, graph[0].out_edges.size());
+
+  // Ensure it only depends on the next node and the new temp node
+  EXPECT_EQ(2, graph[0].out_edges.size());
   EXPECT_TRUE(graph[0].out_edges.end() != graph[0].out_edges.find(1));
-  
+  EXPECT_TRUE(graph[0].out_edges.end() != graph[0].out_edges.find(graph.size() -
+                                                                  1));
+
   // Check second node has unchanged extents
   EXPECT_EQ(2, graph[1].op.src_extents_size());
   EXPECT_EQ(1, graph[1].op.src_extents(0).start_block());
   EXPECT_EQ(2, graph[1].op.src_extents(0).num_blocks());
   EXPECT_EQ(4, graph[1].op.src_extents(1).start_block());
   EXPECT_EQ(1, graph[1].op.src_extents(1).num_blocks());
 
   EXPECT_EQ(2, graph[1].op.dst_extents_size());
   EXPECT_EQ(3, graph[1].op.dst_extents(0).start_block());
   EXPECT_EQ(1, graph[1].op.dst_extents(0).num_blocks());
@@ skipping 38 matching lines @@
   EXPECT_EQ(0, manifest.install_operations(0).data_offset());
   EXPECT_EQ(3, manifest.install_operations(0).data_length());
   EXPECT_EQ(3, manifest.install_operations(1).data_offset());
   EXPECT_EQ(1, manifest.install_operations(1).data_length());
   
   unlink(orig_blobs.c_str());
   unlink(new_blobs.c_str());
 }
 
 }  // namespace chromeos_update_engine