More PrefixSet diagnostics.

chrome/browser/safe_browsing/prefix_set_unittest.cc

 // Copyright (c) 2011 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 "chrome/browser/safe_browsing/prefix_set.h"
 
 #include <algorithm>
 
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 414 matching lines @@
   // Add some junk to the trunk.
   file_util::ScopedFILE file(file_util::OpenFile(filename, "ab"));
   const char buf[] = "im in ur base, killing ur d00dz.";
   ASSERT_EQ(strlen(buf), fwrite(buf, 1, strlen(buf), file.get()));
   file.reset();
   scoped_ptr<safe_browsing::PrefixSet>
       prefix_set(safe_browsing::PrefixSet::LoadFile(filename));
   ASSERT_FALSE(prefix_set.get());
 }
 
+// TODO(shess): Remove once the problem is debugged.  But, until then,
+// make sure the accessors work!
+TEST_F(PrefixSetTest, DebuggingAccessors) {
+  std::vector<SBPrefix> prefixes;
+  std::unique_copy(shared_prefixes_.begin(), shared_prefixes_.end(),
+                   std::back_inserter(prefixes));
+  safe_browsing::PrefixSet prefix_set(prefixes);
+
+  EXPECT_EQ(prefixes.size(), prefix_set.GetSize());
+  EXPECT_FALSE(prefix_set.IsDeltaAt(0));
+  for (size_t i = 1; i < prefixes.size(); ++i) {
+    const int delta = prefixes[i] - prefixes[i - 1];
+    if (delta > 0xFFFF) {
+      EXPECT_FALSE(prefix_set.IsDeltaAt(i));
+    } else {
+      ASSERT_TRUE(prefix_set.IsDeltaAt(i));
+      EXPECT_EQ(delta, prefix_set.DeltaAt(i));
+    }
+  }
+}
+
 }  // namespace