AU: Verify delta payload signature and signed hash.

omaha_hash_calculator_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 <math.h>
 #include <unistd.h>
+
+#include <vector>
+
 #include <glib.h>
 #include <gtest/gtest.h>
+
 #include "update_engine/libcurl_http_fetcher.h"
 #include "update_engine/omaha_hash_calculator.h"
 
+using std::vector;
+
 namespace chromeos_update_engine {
 
 class OmahaHashCalculatorTest : public ::testing::Test { };
 
+// Generated by running this on a linux shell:
+// $ echo -n hi | openssl dgst -sha256 -binary | openssl base64
+static const char kExpectedHash[] =
+    "j0NDRmSPa5bfid2pAcUXaxCm2Dlh3TwayItZstwyeqQ=";
+static const char kExpectedRawHash[] = {
+  0x8f, 0x43, 0x43, 0x46, 0x64, 0x8f, 0x6b, 0x96,
+  0xdf, 0x89, 0xdd, 0xa9, 0x01, 0xc5, 0x17, 0x6b,
+  0x10, 0xa6, 0xd8, 0x39, 0x61, 0xdd, 0x3c, 0x1a,
+  0xc8, 0x8b, 0x59, 0xb2, 0xdc, 0x32, 0x7a, 0xa4
+};
+
 TEST(OmahaHashCalculatorTest, SimpleTest) {
   OmahaHashCalculator calc;
   calc.Update("hi", 2);
   calc.Finalize();
-  // Generated by running this on a linux shell:
-  // $ echo -n hi | openssl dgst -sha256 -binary | openssl base64
-  EXPECT_EQ("j0NDRmSPa5bfid2pAcUXaxCm2Dlh3TwayItZstwyeqQ=", calc.hash());
+  EXPECT_EQ(kExpectedHash, calc.hash());
+  vector<char> raw_hash(kExpectedRawHash,
+                        kExpectedRawHash + arraysize(kExpectedRawHash));
+  EXPECT_TRUE(raw_hash == calc.raw_hash());
 }
 
 TEST(OmahaHashCalculatorTest, MultiUpdateTest) {
   OmahaHashCalculator calc;
   calc.Update("h", 1);
   calc.Update("i", 1);
   calc.Finalize();
-  // Generated by running this on a linux shell:
-  // $ echo -n hi | openssl dgst -sha256 -binary | openssl base64
-  EXPECT_EQ("j0NDRmSPa5bfid2pAcUXaxCm2Dlh3TwayItZstwyeqQ=", calc.hash());
+  EXPECT_EQ(kExpectedHash, calc.hash());
+  vector<char> raw_hash(kExpectedRawHash,
+                        kExpectedRawHash + arraysize(kExpectedRawHash));
+  EXPECT_TRUE(raw_hash == calc.raw_hash());
 }
 
 TEST(OmahaHashCalculatorTest, BigTest) {
   OmahaHashCalculator calc;
 
   for (int i = 0; i < 1000000; i++) {
     char buf[8];
     ASSERT_EQ(0 == i ? 1 : static_cast<int>(floorf(logf(i) / logf(10))) + 1,
               snprintf(buf, sizeof(buf), "%d", i)) << " i = " << i;
     calc.Update(buf, strlen(buf));
@@ skipping 14 matching lines @@
   {
     OmahaHashCalculator calc;
   }
   {
     OmahaHashCalculator calc;
     calc.Update("h", 1);
   }
 }
 
 }  // namespace chromeos_update_engine