1 //===- llvm/unittest/ADT/SmallStringTest.cpp ------------------------------===// 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 // SmallString unit tests. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/ADT/SmallString.h" 15 #include "gtest/gtest.h" 16 #include <climits> 17 #include <cstring> 18 #include <stdarg.h> 19 20 using namespace llvm; 21 22 namespace { 23 24 // Test fixture class 25 class SmallStringTest : public testing::Test { 26 protected: 27 typedef SmallString<40> StringType; 28 29 StringType theString; 30 31 void assertEmpty(StringType & v) { 32 // Size tests 33 EXPECT_EQ(0u, v.size()); 34 EXPECT_TRUE(v.empty()); 35 // Iterator tests 36 EXPECT_TRUE(v.begin() == v.end()); 37 } 38 }; 39 40 // New string test. 41 TEST_F(SmallStringTest, EmptyStringTest) { 42 SCOPED_TRACE("EmptyStringTest"); 43 assertEmpty(theString); 44 EXPECT_TRUE(theString.rbegin() == theString.rend()); 45 } 46 47 TEST_F(SmallStringTest, AssignRepeated) { 48 theString.assign(3, 'a'); 49 EXPECT_EQ(3u, theString.size()); 50 EXPECT_STREQ("aaa", theString.c_str()); 51 } 52 53 TEST_F(SmallStringTest, AssignIterPair) { 54 StringRef abc = "abc"; 55 theString.assign(abc.begin(), abc.end()); 56 EXPECT_EQ(3u, theString.size()); 57 EXPECT_STREQ("abc", theString.c_str()); 58 } 59 60 TEST_F(SmallStringTest, AssignStringRef) { 61 StringRef abc = "abc"; 62 theString.assign(abc); 63 EXPECT_EQ(3u, theString.size()); 64 EXPECT_STREQ("abc", theString.c_str()); 65 } 66 67 TEST_F(SmallStringTest, AssignSmallVector) { 68 StringRef abc = "abc"; 69 SmallVector<char, 10> abcVec(abc.begin(), abc.end()); 70 theString.assign(abcVec); 71 EXPECT_EQ(3u, theString.size()); 72 EXPECT_STREQ("abc", theString.c_str()); 73 } 74 75 TEST_F(SmallStringTest, AppendIterPair) { 76 StringRef abc = "abc"; 77 theString.append(abc.begin(), abc.end()); 78 theString.append(abc.begin(), abc.end()); 79 EXPECT_EQ(6u, theString.size()); 80 EXPECT_STREQ("abcabc", theString.c_str()); 81 } 82 83 TEST_F(SmallStringTest, AppendStringRef) { 84 StringRef abc = "abc"; 85 theString.append(abc); 86 theString.append(abc); 87 EXPECT_EQ(6u, theString.size()); 88 EXPECT_STREQ("abcabc", theString.c_str()); 89 } 90 91 TEST_F(SmallStringTest, AppendSmallVector) { 92 StringRef abc = "abc"; 93 SmallVector<char, 10> abcVec(abc.begin(), abc.end()); 94 theString.append(abcVec); 95 theString.append(abcVec); 96 EXPECT_EQ(6u, theString.size()); 97 EXPECT_STREQ("abcabc", theString.c_str()); 98 } 99 100 TEST_F(SmallStringTest, Substr) { 101 theString = "hello"; 102 EXPECT_EQ("lo", theString.substr(3)); 103 EXPECT_EQ("", theString.substr(100)); 104 EXPECT_EQ("hello", theString.substr(0, 100)); 105 EXPECT_EQ("o", theString.substr(4, 10)); 106 } 107 108 TEST_F(SmallStringTest, Slice) { 109 theString = "hello"; 110 EXPECT_EQ("l", theString.slice(2, 3)); 111 EXPECT_EQ("ell", theString.slice(1, 4)); 112 EXPECT_EQ("llo", theString.slice(2, 100)); 113 EXPECT_EQ("", theString.slice(2, 1)); 114 EXPECT_EQ("", theString.slice(10, 20)); 115 } 116 117 TEST_F(SmallStringTest, Find) { 118 theString = "hello"; 119 EXPECT_EQ(2U, theString.find('l')); 120 EXPECT_EQ(StringRef::npos, theString.find('z')); 121 EXPECT_EQ(StringRef::npos, theString.find("helloworld")); 122 EXPECT_EQ(0U, theString.find("hello")); 123 EXPECT_EQ(1U, theString.find("ello")); 124 EXPECT_EQ(StringRef::npos, theString.find("zz")); 125 EXPECT_EQ(2U, theString.find("ll", 2)); 126 EXPECT_EQ(StringRef::npos, theString.find("ll", 3)); 127 EXPECT_EQ(0U, theString.find("")); 128 129 EXPECT_EQ(3U, theString.rfind('l')); 130 EXPECT_EQ(StringRef::npos, theString.rfind('z')); 131 EXPECT_EQ(StringRef::npos, theString.rfind("helloworld")); 132 EXPECT_EQ(0U, theString.rfind("hello")); 133 EXPECT_EQ(1U, theString.rfind("ello")); 134 EXPECT_EQ(StringRef::npos, theString.rfind("zz")); 135 136 EXPECT_EQ(2U, theString.find_first_of('l')); 137 EXPECT_EQ(1U, theString.find_first_of("el")); 138 EXPECT_EQ(StringRef::npos, theString.find_first_of("xyz")); 139 140 EXPECT_EQ(1U, theString.find_first_not_of('h')); 141 EXPECT_EQ(4U, theString.find_first_not_of("hel")); 142 EXPECT_EQ(StringRef::npos, theString.find_first_not_of("hello")); 143 144 theString = "hellx xello hell ello world foo bar hello"; 145 EXPECT_EQ(36U, theString.find("hello")); 146 EXPECT_EQ(28U, theString.find("foo")); 147 EXPECT_EQ(12U, theString.find("hell", 2)); 148 EXPECT_EQ(0U, theString.find("")); 149 } 150 151 TEST_F(SmallStringTest, Count) { 152 theString = "hello"; 153 EXPECT_EQ(2U, theString.count('l')); 154 EXPECT_EQ(1U, theString.count('o')); 155 EXPECT_EQ(0U, theString.count('z')); 156 EXPECT_EQ(0U, theString.count("helloworld")); 157 EXPECT_EQ(1U, theString.count("hello")); 158 EXPECT_EQ(1U, theString.count("ello")); 159 EXPECT_EQ(0U, theString.count("zz")); 160 } 161 162 TEST_F(SmallStringTest, Realloc) { 163 theString = "abcd"; 164 theString.reserve(100); 165 EXPECT_EQ("abcd", theString); 166 unsigned const N = 100000; 167 theString.reserve(N); 168 for (unsigned i = 0; i < N - 4; ++i) 169 theString.push_back('y'); 170 EXPECT_EQ("abcdyyy", theString.slice(0, 7)); 171 } 172 173 TEST(StringRefTest, Comparisons) { 174 EXPECT_EQ(-1, SmallString<10>("aab").compare("aad")); 175 EXPECT_EQ( 0, SmallString<10>("aab").compare("aab")); 176 EXPECT_EQ( 1, SmallString<10>("aab").compare("aaa")); 177 EXPECT_EQ(-1, SmallString<10>("aab").compare("aabb")); 178 EXPECT_EQ( 1, SmallString<10>("aab").compare("aa")); 179 EXPECT_EQ( 1, SmallString<10>("\xFF").compare("\1")); 180 181 EXPECT_EQ(-1, SmallString<10>("AaB").compare_lower("aAd")); 182 EXPECT_EQ( 0, SmallString<10>("AaB").compare_lower("aab")); 183 EXPECT_EQ( 1, SmallString<10>("AaB").compare_lower("AAA")); 184 EXPECT_EQ(-1, SmallString<10>("AaB").compare_lower("aaBb")); 185 EXPECT_EQ( 1, SmallString<10>("AaB").compare_lower("aA")); 186 EXPECT_EQ( 1, SmallString<10>("\xFF").compare_lower("\1")); 187 188 EXPECT_EQ(-1, SmallString<10>("aab").compare_numeric("aad")); 189 EXPECT_EQ( 0, SmallString<10>("aab").compare_numeric("aab")); 190 EXPECT_EQ( 1, SmallString<10>("aab").compare_numeric("aaa")); 191 EXPECT_EQ(-1, SmallString<10>("aab").compare_numeric("aabb")); 192 EXPECT_EQ( 1, SmallString<10>("aab").compare_numeric("aa")); 193 EXPECT_EQ(-1, SmallString<10>("1").compare_numeric("10")); 194 EXPECT_EQ( 0, SmallString<10>("10").compare_numeric("10")); 195 EXPECT_EQ( 0, SmallString<10>("10a").compare_numeric("10a")); 196 EXPECT_EQ( 1, SmallString<10>("2").compare_numeric("1")); 197 EXPECT_EQ( 0, SmallString<10>("llvm_v1i64_ty").compare_numeric("llvm_v1i64_ty")); 198 EXPECT_EQ( 1, SmallString<10>("\xFF").compare_numeric("\1")); 199 EXPECT_EQ( 1, SmallString<10>("V16").compare_numeric("V1_q0")); 200 EXPECT_EQ(-1, SmallString<10>("V1_q0").compare_numeric("V16")); 201 EXPECT_EQ(-1, SmallString<10>("V8_q0").compare_numeric("V16")); 202 EXPECT_EQ( 1, SmallString<10>("V16").compare_numeric("V8_q0")); 203 EXPECT_EQ(-1, SmallString<10>("V1_q0").compare_numeric("V8_q0")); 204 EXPECT_EQ( 1, SmallString<10>("V8_q0").compare_numeric("V1_q0")); 205 } 206 207 } 208
