AU: Support signed payload verification through the delta generator.

delta_performer_unittest.cc

 // Copyright (c) 2009 The Chromium OS 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/mount.h>
 #include <inttypes.h>
 
 #include <algorithm>
 #include <string>
 #include <vector>
@@ skipping 220 matching lines @@
     ASSERT_TRUE(PayloadSigner::HashPayloadForSigning(delta_path,
                                                      signature_size,
                                                      &hash));
     vector<char> signature;
     ASSERT_TRUE(PayloadSigner::SignHash(hash,
                                         kUnittestPrivateKeyPath,
                                         &signature));
     ASSERT_TRUE(PayloadSigner::AddSignatureToPayload(delta_path,
                                                      signature,
                                                      delta_path));
+    EXPECT_TRUE(PayloadSigner::VerifySignedPayload(delta_path,
+                                                   kUnittestPublicKeyPath));
   }
 
   // Read delta into memory.
   vector<char> delta;
   EXPECT_TRUE(utils::ReadFile(delta_path, &delta));
 
   uint64_t manifest_metadata_size;
 
   // Check the metadata.
   {
@@ skipping 169 matching lines @@
   op.clear_src_extents();
   *(op.add_src_extents()) = ExtentForRange(5, 3);
   EXPECT_TRUE(DeltaPerformer::IsIdempotentOperation(op));
   *(op.add_dst_extents()) = ExtentForRange(20, 6);
   EXPECT_TRUE(DeltaPerformer::IsIdempotentOperation(op));
   *(op.add_src_extents()) = ExtentForRange(19, 2);
   EXPECT_FALSE(DeltaPerformer::IsIdempotentOperation(op));
 }
 
 }  // namespace chromeos_update_engine