1 //===- llvm/unittest/ADT/StringMapMap.cpp - StringMap unit tests ----------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "gtest/gtest.h" 11 #include "llvm/ADT/StringMap.h" 12 using namespace llvm; 13 14 namespace { 15 16 // Test fixture 17 class StringMapTest : public testing::Test { 18 protected: 19 StringMap<uint32_t> testMap; 20 21 static const char testKey[]; 22 static const uint32_t testValue; 23 static const char* testKeyFirst; 24 static const char* testKeyLast; 25 static const std::string testKeyStr; 26 27 void assertEmptyMap() { 28 // Size tests 29 EXPECT_EQ(0u, testMap.size()); 30 EXPECT_TRUE(testMap.empty()); 31 32 // Iterator tests 33 EXPECT_TRUE(testMap.begin() == testMap.end()); 34 35 // Lookup tests 36 EXPECT_EQ(0u, testMap.count(testKey)); 37 EXPECT_EQ(0u, testMap.count(testKeyFirst, testKeyLast)); 38 EXPECT_EQ(0u, testMap.count(testKeyStr)); 39 EXPECT_TRUE(testMap.find(testKey) == testMap.end()); 40 EXPECT_TRUE(testMap.find(testKeyFirst, testKeyLast) == testMap.end()); 41 EXPECT_TRUE(testMap.find(testKeyStr) == testMap.end()); 42 } 43 44 void assertSingleItemMap() { 45 // Size tests 46 EXPECT_EQ(1u, testMap.size()); 47 EXPECT_FALSE(testMap.begin() == testMap.end()); 48 EXPECT_FALSE(testMap.empty()); 49 50 // Iterator tests 51 StringMap<uint32_t>::iterator it = testMap.begin(); 52 EXPECT_STREQ(testKey, it->first()); 53 EXPECT_EQ(testValue, it->second); 54 ++it; 55 EXPECT_TRUE(it == testMap.end()); 56 57 // Lookup tests 58 EXPECT_EQ(1u, testMap.count(testKey)); 59 EXPECT_EQ(1u, testMap.count(testKeyFirst, testKeyLast)); 60 EXPECT_EQ(1u, testMap.count(testKeyStr)); 61 EXPECT_TRUE(testMap.find(testKey) == testMap.begin()); 62 EXPECT_TRUE(testMap.find(testKeyFirst, testKeyLast) == testMap.begin()); 63 EXPECT_TRUE(testMap.find(testKeyStr) == testMap.begin()); 64 } 65 }; 66 67 const char StringMapTest::testKey[] = "key"; 68 const uint32_t StringMapTest::testValue = 1u; 69 const char* StringMapTest::testKeyFirst = testKey; 70 const char* StringMapTest::testKeyLast = testKey + sizeof(testKey) - 1; 71 const std::string StringMapTest::testKeyStr(testKey); 72 73 // Empty map tests. 74 TEST_F(StringMapTest, EmptyMapTest) { 75 SCOPED_TRACE("EmptyMapTest"); 76 assertEmptyMap(); 77 } 78 79 // Constant map tests. 80 TEST_F(StringMapTest, ConstEmptyMapTest) { 81 const StringMap<uint32_t>& constTestMap = testMap; 82 83 // Size tests 84 EXPECT_EQ(0u, constTestMap.size()); 85 EXPECT_TRUE(constTestMap.empty()); 86 87 // Iterator tests 88 EXPECT_TRUE(constTestMap.begin() == constTestMap.end()); 89 90 // Lookup tests 91 EXPECT_EQ(0u, constTestMap.count(testKey)); 92 EXPECT_EQ(0u, constTestMap.count(testKeyFirst, testKeyLast)); 93 EXPECT_EQ(0u, constTestMap.count(testKeyStr)); 94 EXPECT_TRUE(constTestMap.find(testKey) == constTestMap.end()); 95 EXPECT_TRUE(constTestMap.find(testKeyFirst, testKeyLast) == 96 constTestMap.end()); 97 EXPECT_TRUE(constTestMap.find(testKeyStr) == constTestMap.end()); 98 } 99 100 // A map with a single entry. 101 TEST_F(StringMapTest, SingleEntryMapTest) { 102 SCOPED_TRACE("SingleEntryMapTest"); 103 testMap[testKey] = testValue; 104 assertSingleItemMap(); 105 } 106 107 // Test clear() method. 108 TEST_F(StringMapTest, ClearTest) { 109 SCOPED_TRACE("ClearTest"); 110 testMap[testKey] = testValue; 111 testMap.clear(); 112 assertEmptyMap(); 113 } 114 115 // Test erase(iterator) method. 116 TEST_F(StringMapTest, EraseIteratorTest) { 117 SCOPED_TRACE("EraseIteratorTest"); 118 testMap[testKey] = testValue; 119 testMap.erase(testMap.begin()); 120 assertEmptyMap(); 121 } 122 123 // Test erase(value) method. 124 TEST_F(StringMapTest, EraseValueTest) { 125 SCOPED_TRACE("EraseValueTest"); 126 testMap[testKey] = testValue; 127 testMap.erase(testKey); 128 assertEmptyMap(); 129 } 130 131 // Test inserting two values and erasing one. 132 TEST_F(StringMapTest, InsertAndEraseTest) { 133 SCOPED_TRACE("InsertAndEraseTest"); 134 testMap[testKey] = testValue; 135 testMap["otherKey"] = 2; 136 testMap.erase("otherKey"); 137 assertSingleItemMap(); 138 } 139 140 // A more complex iteration test. 141 TEST_F(StringMapTest, IterationTest) { 142 bool visited[100]; 143 144 // Insert 100 numbers into the map 145 for (int i = 0; i < 100; ++i) { 146 std::stringstream ss; 147 ss << "key_" << i; 148 testMap[ss.str()] = i; 149 visited[i] = false; 150 } 151 152 // Iterate over all numbers and mark each one found. 153 for (StringMap<uint32_t>::iterator it = testMap.begin(); 154 it != testMap.end(); ++it) { 155 std::stringstream ss; 156 ss << "key_" << it->second; 157 ASSERT_STREQ(ss.str().c_str(), it->first()); 158 visited[it->second] = true; 159 } 160 161 // Ensure every number was visited. 162 for (int i = 0; i < 100; ++i) { 163 ASSERT_TRUE(visited[i]) << "Entry #" << i << " was never visited"; 164 } 165 } 166 167 } // end anonymous namespace 168 169 namespace llvm { 170 171 template <> 172 class StringMapEntryInitializer<uint32_t> { 173 public: 174 template <typename InitTy> 175 static void Initialize(StringMapEntry<uint32_t> &T, InitTy InitVal) { 176 T.second = InitVal; 177 } 178 }; 179 180 } // end llvm namespace 181 182 namespace { 183 184 // Test StringMapEntry::Create() method. 185 TEST_F(StringMapTest, StringMapEntryTest) { 186 StringMap<uint32_t>::value_type* entry = 187 StringMap<uint32_t>::value_type::Create( 188 testKeyFirst, testKeyLast, 1u); 189 EXPECT_STREQ(testKey, entry->first()); 190 EXPECT_EQ(1u, entry->second); 191 } 192 193 // Test insert() method. 194 TEST_F(StringMapTest, InsertTest) { 195 SCOPED_TRACE("InsertTest"); 196 testMap.insert( 197 StringMap<uint32_t>::value_type::Create( 198 testKeyFirst, testKeyLast, testMap.getAllocator(), 1u)); 199 assertSingleItemMap(); 200 } 201 202 } // end anonymous namespace 203