test hash of quick brown fox for known hash value

BUG=none
TESTED=out\release\libyuv_unittest --gtest_filter=libyuvTest.Djb2_Test
R=johannkoenig@google.com

Review URL: https://webrtc-codereview.appspot.com/1527004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@699 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 698
+Version: 699
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 698
+#define LIBYUV_VERSION 699
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

unit_test/compare_test.cc

@@ -35,6 +35,13 @@ TEST_F(libyuvTest, Djb2_Test) {
   align_buffer_64(src_a, kMaxTest)
   align_buffer_64(src_b, kMaxTest)
 
+  const char* fox = "The quick brown fox jumps over the lazy dog"
+      " and feels as if he were in the seventh heaven of typography"
+      " together with Hermann Zapf";
+  uint32 foxhash = HashDjb2(reinterpret_cast<const uint8*>(fox), 131, 5381);
+  const uint32 kExpectedFoxHash = 2611006483;
+  EXPECT_EQ(kExpectedFoxHash, foxhash);
+
   for (int i = 0; i < kMaxTest; ++i) {
     src_a[i] = (random() & 0xff);
     src_b[i] = (random() & 0xff);