base/containers/adapters_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/containers/adapters.h"
   6
   7 #include <vector>
   8
   9 #include "testing/gtest/include/gtest/gtest.h"
  10
  11 namespace {
  12
  13 TEST(AdaptersTest, Reversed) {
  14   std::vector<int> v;
  15   v.push_back(3);
  16   v.push_back(2);
  17   v.push_back(1);
  18   int j = 0;
  19   for (int& i : base::Reversed(v)) {
  20     EXPECT_EQ(++j, i);
  21     i += 100;
  22   }
  23   EXPECT_EQ(103, v[0]);
  24   EXPECT_EQ(102, v[1]);
  25   EXPECT_EQ(101, v[2]);
  26 }
  27
  28 TEST(AdaptersTest, ConstReversed) {
  29   std::vector<int> v;
  30   v.push_back(3);
  31   v.push_back(2);
  32   v.push_back(1);
  33   const std::vector<int>& cv = v;
  34   int j = 0;
  35   for (int i : base::Reversed(cv)) {
  36     EXPECT_EQ(++j, i);
  37   }
  38 }
  39
  40 }  // namespace