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annotate unittests/ADT/SparseSetTest.cpp @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 1172e4bd9c6f
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1 //===------ ADT/SparseSetTest.cpp - SparseSet unit tests - -----*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #include "llvm/ADT/SparseSet.h"
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11 #include "gtest/gtest.h"
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12
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13 using namespace llvm;
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14
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15 namespace {
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16
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17 typedef SparseSet<unsigned> USet;
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18
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19 // Empty set tests.
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20 TEST(SparseSetTest, EmptySet) {
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21 USet Set;
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22 EXPECT_TRUE(Set.empty());
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23 EXPECT_TRUE(Set.begin() == Set.end());
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24 EXPECT_EQ(0u, Set.size());
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25
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26 Set.setUniverse(10);
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27
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28 // Lookups on empty set.
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29 EXPECT_TRUE(Set.find(0) == Set.end());
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30 EXPECT_TRUE(Set.find(9) == Set.end());
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31
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32 // Same thing on a const reference.
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33 const USet &CSet = Set;
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34 EXPECT_TRUE(CSet.empty());
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35 EXPECT_TRUE(CSet.begin() == CSet.end());
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36 EXPECT_EQ(0u, CSet.size());
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37 EXPECT_TRUE(CSet.find(0) == CSet.end());
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38 USet::const_iterator I = CSet.find(5);
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39 EXPECT_TRUE(I == CSet.end());
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40 }
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41
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42 // Single entry set tests.
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43 TEST(SparseSetTest, SingleEntrySet) {
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44 USet Set;
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45 Set.setUniverse(10);
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46 std::pair<USet::iterator, bool> IP = Set.insert(5);
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47 EXPECT_TRUE(IP.second);
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48 EXPECT_TRUE(IP.first == Set.begin());
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49
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50 EXPECT_FALSE(Set.empty());
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51 EXPECT_FALSE(Set.begin() == Set.end());
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52 EXPECT_TRUE(Set.begin() + 1 == Set.end());
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53 EXPECT_EQ(1u, Set.size());
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54
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55 EXPECT_TRUE(Set.find(0) == Set.end());
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56 EXPECT_TRUE(Set.find(9) == Set.end());
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57
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58 EXPECT_FALSE(Set.count(0));
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59 EXPECT_TRUE(Set.count(5));
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60
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61 // Redundant insert.
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62 IP = Set.insert(5);
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63 EXPECT_FALSE(IP.second);
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64 EXPECT_TRUE(IP.first == Set.begin());
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65
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66 // Erase non-existent element.
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67 EXPECT_FALSE(Set.erase(1));
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68 EXPECT_EQ(1u, Set.size());
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69 EXPECT_EQ(5u, *Set.begin());
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70
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71 // Erase iterator.
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72 USet::iterator I = Set.find(5);
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73 EXPECT_TRUE(I == Set.begin());
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74 I = Set.erase(I);
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75 EXPECT_TRUE(I == Set.end());
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76 EXPECT_TRUE(Set.empty());
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77 }
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78
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79 // Multiple entry set tests.
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80 TEST(SparseSetTest, MultipleEntrySet) {
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81 USet Set;
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82 Set.setUniverse(10);
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83
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84 Set.insert(5);
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85 Set.insert(3);
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86 Set.insert(2);
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87 Set.insert(1);
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88 Set.insert(4);
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89 EXPECT_EQ(5u, Set.size());
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90
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91 // Without deletions, iteration order == insertion order.
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92 USet::const_iterator I = Set.begin();
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93 EXPECT_EQ(5u, *I);
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94 ++I;
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95 EXPECT_EQ(3u, *I);
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96 ++I;
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97 EXPECT_EQ(2u, *I);
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98 ++I;
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99 EXPECT_EQ(1u, *I);
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100 ++I;
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101 EXPECT_EQ(4u, *I);
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102 ++I;
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103 EXPECT_TRUE(I == Set.end());
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104
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105 // Redundant insert.
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106 std::pair<USet::iterator, bool> IP = Set.insert(3);
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107 EXPECT_FALSE(IP.second);
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108 EXPECT_TRUE(IP.first == Set.begin() + 1);
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109
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110 // Erase last element by key.
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111 EXPECT_TRUE(Set.erase(4));
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112 EXPECT_EQ(4u, Set.size());
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113 EXPECT_FALSE(Set.count(4));
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114 EXPECT_FALSE(Set.erase(4));
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115 EXPECT_EQ(4u, Set.size());
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116 EXPECT_FALSE(Set.count(4));
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117
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118 // Erase first element by key.
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119 EXPECT_TRUE(Set.count(5));
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120 EXPECT_TRUE(Set.find(5) == Set.begin());
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121 EXPECT_TRUE(Set.erase(5));
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122 EXPECT_EQ(3u, Set.size());
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123 EXPECT_FALSE(Set.count(5));
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124 EXPECT_FALSE(Set.erase(5));
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125 EXPECT_EQ(3u, Set.size());
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126 EXPECT_FALSE(Set.count(5));
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127
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128 Set.insert(6);
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129 Set.insert(7);
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130 EXPECT_EQ(5u, Set.size());
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131
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132 // Erase last element by iterator.
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133 I = Set.erase(Set.end() - 1);
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134 EXPECT_TRUE(I == Set.end());
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135 EXPECT_EQ(4u, Set.size());
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136
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137 // Erase second element by iterator.
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138 I = Set.erase(Set.begin() + 1);
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139 EXPECT_TRUE(I == Set.begin() + 1);
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140
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141 // Clear and resize the universe.
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142 Set.clear();
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143 EXPECT_FALSE(Set.count(5));
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144 Set.setUniverse(1000);
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145
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146 // Add more than 256 elements.
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147 for (unsigned i = 100; i != 800; ++i)
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148 Set.insert(i);
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149
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150 for (unsigned i = 0; i != 10; ++i)
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151 Set.erase(i);
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152
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153 for (unsigned i = 100; i != 800; ++i)
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154 EXPECT_TRUE(Set.count(i));
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155
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156 EXPECT_FALSE(Set.count(99));
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157 EXPECT_FALSE(Set.count(800));
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158 EXPECT_EQ(700u, Set.size());
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159 }
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160
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161 struct Alt {
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162 unsigned Value;
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163 explicit Alt(unsigned x) : Value(x) {}
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164 unsigned getSparseSetIndex() const { return Value - 1000; }
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165 };
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166
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167 TEST(SparseSetTest, AltStructSet) {
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168 typedef SparseSet<Alt> ASet;
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169 ASet Set;
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170 Set.setUniverse(10);
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171 Set.insert(Alt(1005));
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172
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173 ASet::iterator I = Set.find(5);
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174 ASSERT_TRUE(I == Set.begin());
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175 EXPECT_EQ(1005u, I->Value);
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176
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177 Set.insert(Alt(1006));
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178 Set.insert(Alt(1006));
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179 I = Set.erase(Set.begin());
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180 ASSERT_TRUE(I == Set.begin());
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181 EXPECT_EQ(1006u, I->Value);
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182
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183 EXPECT_FALSE(Set.erase(5));
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184 EXPECT_TRUE(Set.erase(6));
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185 }
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186 } // namespace