content/browser/storage_partition_impl_map_unittest.cc

   1 // Copyright (c) 2012 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 "content/browser/storage_partition_impl_map.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7
   8 namespace content {
   9
  10 class StoragePartitionConfigTest : public testing::Test {
  11 };
  12
  13 // Test that the Less comparison function is implemented properly to uniquely
  14 // identify storage partitions used as keys in a std::map.
  15 TEST_F(StoragePartitionConfigTest, OperatorLess) {
  16   StoragePartitionImplMap::StoragePartitionConfig c1(
  17       std::string(), std::string(), false);
  18   StoragePartitionImplMap::StoragePartitionConfig c2(
  19       std::string(), std::string(), false);
  20   StoragePartitionImplMap::StoragePartitionConfig c3(
  21       std::string(), std::string(), true);
  22   StoragePartitionImplMap::StoragePartitionConfig c4("a", std::string(), true);
  23   StoragePartitionImplMap::StoragePartitionConfig c5("b", std::string(), true);
  24   StoragePartitionImplMap::StoragePartitionConfig c6(
  25       std::string(), "abc", false);
  26   StoragePartitionImplMap::StoragePartitionConfig c7(
  27       std::string(), "abc", true);
  28   StoragePartitionImplMap::StoragePartitionConfig c8("a", "abc", false);
  29   StoragePartitionImplMap::StoragePartitionConfig c9("a", "abc", true);
  30
  31   StoragePartitionImplMap::StoragePartitionConfigLess less;
  32
  33   // Let's ensure basic comparison works.
  34   EXPECT_TRUE(less(c1, c3));
  35   EXPECT_TRUE(less(c1, c4));
  36   EXPECT_TRUE(less(c3, c4));
  37   EXPECT_TRUE(less(c4, c5));
  38   EXPECT_TRUE(less(c4, c8));
  39   EXPECT_TRUE(less(c6, c4));
  40   EXPECT_TRUE(less(c6, c7));
  41   EXPECT_TRUE(less(c8, c9));
  42
  43   // Now, ensure antisymmetry for each pair we've tested.
  44   EXPECT_FALSE(less(c3, c1));
  45   EXPECT_FALSE(less(c4, c1));
  46   EXPECT_FALSE(less(c4, c3));
  47   EXPECT_FALSE(less(c5, c4));
  48   EXPECT_FALSE(less(c8, c4));
  49   EXPECT_FALSE(less(c4, c6));
  50   EXPECT_FALSE(less(c7, c6));
  51   EXPECT_FALSE(less(c9, c8));
  52
  53   // Check for irreflexivity.
  54   EXPECT_FALSE(less(c1, c1));
  55
  56   // Check for transitivity.
  57   EXPECT_TRUE(less(c1, c4));
  58
  59   // Let's enforce that two identical elements obey strict weak ordering.
  60   EXPECT_TRUE(!less(c1, c2) && !less(c2, c1));
  61 }
  62
  63 }  // namespace content