[Extensions] Extension Port Ids and Initialization 2.0

base/unguessable_token_unittest.cc

 // Copyright (c) 2016 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 "base/unguessable_token.h"
 
 #include <sstream>
 #include <type_traits>
 
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 98 matching lines @@
                              token.GetLowForSerialization()),
             UnguessableTokenHash()(token));
 }
 
 TEST(UnguessableTokenTest, VerifyBasicUniqueness) {
   EXPECT_NE(UnguessableToken::Create(), UnguessableToken::Create());
 
   UnguessableToken token = UnguessableToken::Create();
   EXPECT_NE(token.GetHighForSerialization(), token.GetLowForSerialization());
 }
+
+TEST(UnguessableTokenTest, UberUniqueness) {
+  std::set<UnguessableToken> tokens;
+  for (int i = 0; i < 1000000; ++i)
+    ASSERT_TRUE(tokens.insert(UnguessableToken::Create()).second);

[dcheng, 2016/12/03 00:50:56]

How long does this take to run? Honestly, this feels kind of like overkill to me
=)

[Devlin, 2016/12/03 01:46:12]

Whoops!  This wasn't actually supposed to be included - it was just for my own
sanity check.  Ran this with --gtest_repeat=20.

Removed.

 }

[dcheng, 2016/12/03 00:50:56]

Nit: newline after this

+}