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 #include "llvm/Support/DataTypes.h" 13 using namespace llvm; 14 15 namespace { 16 17 // Test fixture 18 class StringMapTest : public testing::Test { 19 protected: 20 StringMap<uint32_t> testMap; 21 22 static const char testKey[]; 23 static const uint32_t testValue; 24 static const char* testKeyFirst; 25 static size_t testKeyLength; 26 static const std::string testKeyStr; 27 28 void assertEmptyMap() { 29 // Size tests 30 EXPECT_EQ(0u, testMap.size()); 31 EXPECT_TRUE(testMap.empty()); 32 33 // Iterator tests 34 EXPECT_TRUE(testMap.begin() == testMap.end()); 35 36 // Lookup tests 37 EXPECT_EQ(0u, testMap.count(testKey)); 38 EXPECT_EQ(0u, testMap.count(StringRef(testKeyFirst, testKeyLength))); 39 EXPECT_EQ(0u, testMap.count(testKeyStr)); 40 EXPECT_TRUE(testMap.find(testKey) == testMap.end()); 41 EXPECT_TRUE(testMap.find(StringRef(testKeyFirst, testKeyLength)) == 42 testMap.end()); 43 EXPECT_TRUE(testMap.find(testKeyStr) == testMap.end()); 44 } 45 46 void assertSingleItemMap() { 47 // Size tests 48 EXPECT_EQ(1u, testMap.size()); 49 EXPECT_FALSE(testMap.begin() == testMap.end()); 50 EXPECT_FALSE(testMap.empty()); 51 52 // Iterator tests 53 StringMap<uint32_t>::iterator it = testMap.begin(); 54 EXPECT_STREQ(testKey, it->first().data()); 55 EXPECT_EQ(testValue, it->second); 56 ++it; 57 EXPECT_TRUE(it == testMap.end()); 58 59 // Lookup tests 60 EXPECT_EQ(1u, testMap.count(testKey)); 61 EXPECT_EQ(1u, testMap.count(StringRef(testKeyFirst, testKeyLength))); 62 EXPECT_EQ(1u, testMap.count(testKeyStr)); 63 EXPECT_TRUE(testMap.find(testKey) == testMap.begin()); 64 EXPECT_TRUE(testMap.find(StringRef(testKeyFirst, testKeyLength)) == 65 testMap.begin()); 66 EXPECT_TRUE(testMap.find(testKeyStr) == testMap.begin()); 67 } 68 }; 69 70 const char StringMapTest::testKey[] = "key"; 71 const uint32_t StringMapTest::testValue = 1u; 72 const char* StringMapTest::testKeyFirst = testKey; 73 size_t StringMapTest::testKeyLength = sizeof(testKey) - 1; 74 const std::string StringMapTest::testKeyStr(testKey); 75 76 // Empty map tests. 77 TEST_F(StringMapTest, EmptyMapTest) { 78 SCOPED_TRACE("EmptyMapTest"); 79 assertEmptyMap(); 80 } 81 82 // Constant map tests. 83 TEST_F(StringMapTest, ConstEmptyMapTest) { 84 const StringMap<uint32_t>& constTestMap = testMap; 85 86 // Size tests 87 EXPECT_EQ(0u, constTestMap.size()); 88 EXPECT_TRUE(constTestMap.empty()); 89 90 // Iterator tests 91 EXPECT_TRUE(constTestMap.begin() == constTestMap.end()); 92 93 // Lookup tests 94 EXPECT_EQ(0u, constTestMap.count(testKey)); 95 EXPECT_EQ(0u, constTestMap.count(StringRef(testKeyFirst, testKeyLength))); 96 EXPECT_EQ(0u, constTestMap.count(testKeyStr)); 97 EXPECT_TRUE(constTestMap.find(testKey) == constTestMap.end()); 98 EXPECT_TRUE(constTestMap.find(StringRef(testKeyFirst, testKeyLength)) == 99 constTestMap.end()); 100 EXPECT_TRUE(constTestMap.find(testKeyStr) == constTestMap.end()); 101 } 102 103 // A map with a single entry. 104 TEST_F(StringMapTest, SingleEntryMapTest) { 105 SCOPED_TRACE("SingleEntryMapTest"); 106 testMap[testKey] = testValue; 107 assertSingleItemMap(); 108 } 109 110 // Test clear() method. 111 TEST_F(StringMapTest, ClearTest) { 112 SCOPED_TRACE("ClearTest"); 113 testMap[testKey] = testValue; 114 testMap.clear(); 115 assertEmptyMap(); 116 } 117 118 // Test erase(iterator) method. 119 TEST_F(StringMapTest, EraseIteratorTest) { 120 SCOPED_TRACE("EraseIteratorTest"); 121 testMap[testKey] = testValue; 122 testMap.erase(testMap.begin()); 123 assertEmptyMap(); 124 } 125 126 // Test erase(value) method. 127 TEST_F(StringMapTest, EraseValueTest) { 128 SCOPED_TRACE("EraseValueTest"); 129 testMap[testKey] = testValue; 130 testMap.erase(testKey); 131 assertEmptyMap(); 132 } 133 134 // Test inserting two values and erasing one. 135 TEST_F(StringMapTest, InsertAndEraseTest) { 136 SCOPED_TRACE("InsertAndEraseTest"); 137 testMap[testKey] = testValue; 138 testMap["otherKey"] = 2; 139 testMap.erase("otherKey"); 140 assertSingleItemMap(); 141 } 142 143 // A more complex iteration test. 144 TEST_F(StringMapTest, IterationTest) { 145 bool visited[100]; 146 147 // Insert 100 numbers into the map 148 for (int i = 0; i < 100; ++i) { 149 std::stringstream ss; 150 ss << "key_" << i; 151 testMap[ss.str()] = i; 152 visited[i] = false; 153 } 154 155 // Iterate over all numbers and mark each one found. 156 for (StringMap<uint32_t>::iterator it = testMap.begin(); 157 it != testMap.end(); ++it) { 158 std::stringstream ss; 159 ss << "key_" << it->second; 160 ASSERT_STREQ(ss.str().c_str(), it->first().data()); 161 visited[it->second] = true; 162 } 163 164 // Ensure every number was visited. 165 for (int i = 0; i < 100; ++i) { 166 ASSERT_TRUE(visited[i]) << "Entry #" << i << " was never visited"; 167 } 168 } 169 170 } // end anonymous namespace 171 172 namespace llvm { 173 174 template <> 175 class StringMapEntryInitializer<uint32_t> { 176 public: 177 template <typename InitTy> 178 static void Initialize(StringMapEntry<uint32_t> &T, InitTy InitVal) { 179 T.second = InitVal; 180 } 181 }; 182 183 } // end llvm namespace 184 185 namespace { 186 187 // Test StringMapEntry::Create() method. 188 TEST_F(StringMapTest, StringMapEntryTest) { 189 StringMap<uint32_t>::value_type* entry = 190 StringMap<uint32_t>::value_type::Create( 191 testKeyFirst, testKeyFirst + testKeyLength, 1u); 192 EXPECT_STREQ(testKey, entry->first().data()); 193 EXPECT_EQ(1u, entry->second); 194 free(entry); 195 } 196 197 // Test insert() method. 198 TEST_F(StringMapTest, InsertTest) { 199 SCOPED_TRACE("InsertTest"); 200 testMap.insert( 201 StringMap<uint32_t>::value_type::Create( 202 testKeyFirst, testKeyFirst + testKeyLength, 203 testMap.getAllocator(), 1u)); 204 assertSingleItemMap(); 205 } 206 207 } // end anonymous namespace 208
