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| 1 // Copyright 2016 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 "wtf/text/StringView.h" |
| 6 |
| 7 #include "testing/gtest/include/gtest/gtest.h" |
| 8 #include "wtf/text/AtomicString.h" |
| 9 #include "wtf/text/StringImpl.h" |
| 10 #include "wtf/text/WTFString.h" |
| 11 |
| 12 namespace WTF { |
| 13 |
| 14 const char* kChars = "12345"; |
| 15 const LChar* kChars8 = reinterpret_cast<const LChar*>(kChars); |
| 16 const UChar* kChars16 = reinterpret_cast<const UChar*>(u"12345"); |
| 17 |
| 18 TEST(StringViewTest, ConstructionStringImpl8) |
| 19 { |
| 20 RefPtr<StringImpl> impl8Bit = StringImpl::create(kChars8, 5); |
| 21 |
| 22 // StringView(StringImpl*); |
| 23 ASSERT_TRUE(StringView(impl8Bit.get()).is8Bit()); |
| 24 EXPECT_FALSE(StringView(impl8Bit.get()).isNull()); |
| 25 EXPECT_EQ(impl8Bit->characters8(), StringView(impl8Bit.get()).characters8())
; |
| 26 EXPECT_EQ(impl8Bit->length(), StringView(impl8Bit.get()).length()); |
| 27 EXPECT_STREQ(kChars, StringView(impl8Bit.get()).toString().utf8().data()); |
| 28 |
| 29 // StringView(StringImpl*, unsigned offset); |
| 30 ASSERT_TRUE(StringView(impl8Bit.get(), 2).is8Bit()); |
| 31 EXPECT_FALSE(StringView(impl8Bit.get(), 2).isNull()); |
| 32 EXPECT_EQ(impl8Bit->characters8() + 2, StringView(impl8Bit.get(), 2).charact
ers8()); |
| 33 EXPECT_EQ(3u, StringView(impl8Bit.get(), 2).length()); |
| 34 EXPECT_EQ(StringView("345"), StringView(impl8Bit.get(), 2).characters8()); |
| 35 EXPECT_STREQ("345", StringView(impl8Bit.get(), 2).toString().utf8().data()); |
| 36 |
| 37 // StringView(StringImpl*, unsigned offset, unsigned length); |
| 38 ASSERT_TRUE(StringView(impl8Bit.get(), 2, 1).is8Bit()); |
| 39 EXPECT_FALSE(StringView(impl8Bit.get(), 2, 1).isNull()); |
| 40 EXPECT_EQ(impl8Bit->characters8() + 2, StringView(impl8Bit.get(), 2, 1).char
acters8()); |
| 41 EXPECT_EQ(1u, StringView(impl8Bit.get(), 2, 1).length()); |
| 42 EXPECT_EQ(StringView("3"), StringView(impl8Bit.get(), 2, 1)); |
| 43 EXPECT_STREQ("3", StringView(impl8Bit.get(), 2, 1).toString().utf8().data())
; |
| 44 } |
| 45 |
| 46 TEST(StringViewTest, ConstructionStringImpl16) |
| 47 { |
| 48 RefPtr<StringImpl> impl16Bit = StringImpl::create(kChars16, 5); |
| 49 |
| 50 // StringView(StringImpl*); |
| 51 ASSERT_FALSE(StringView(impl16Bit.get()).is8Bit()); |
| 52 EXPECT_FALSE(StringView(impl16Bit.get()).isNull()); |
| 53 EXPECT_EQ(impl16Bit->characters16(), StringView(impl16Bit.get()).characters1
6()); |
| 54 EXPECT_EQ(impl16Bit->length(), StringView(impl16Bit.get()).length()); |
| 55 EXPECT_STREQ(kChars, StringView(impl16Bit.get()).toString().utf8().data()); |
| 56 |
| 57 // StringView(StringImpl*, unsigned offset); |
| 58 ASSERT_FALSE(StringView(impl16Bit.get(), 2).is8Bit()); |
| 59 EXPECT_FALSE(StringView(impl16Bit.get(), 2).isNull()); |
| 60 EXPECT_EQ(impl16Bit->characters16() + 2, StringView(impl16Bit.get(), 2).char
acters16()); |
| 61 EXPECT_EQ(3u, StringView(impl16Bit.get(), 2).length()); |
| 62 EXPECT_EQ(StringView("345"), StringView(impl16Bit.get(), 2).characters16()); |
| 63 EXPECT_STREQ("345", StringView(impl16Bit.get(), 2).toString().utf8().data())
; |
| 64 |
| 65 // StringView(StringImpl*, unsigned offset, unsigned length); |
| 66 ASSERT_FALSE(StringView(impl16Bit.get(), 2, 1).is8Bit()); |
| 67 EXPECT_FALSE(StringView(impl16Bit.get(), 2, 1).isNull()); |
| 68 EXPECT_EQ(impl16Bit->characters16() + 2, StringView(impl16Bit.get(), 2, 1).c
haracters16()); |
| 69 EXPECT_EQ(1u, StringView(impl16Bit.get(), 2, 1).length()); |
| 70 EXPECT_EQ(StringView("3"), StringView(impl16Bit.get(), 2, 1)); |
| 71 EXPECT_STREQ("3", StringView(impl16Bit.get(), 2, 1).toString().utf8().data()
); |
| 72 } |
| 73 |
| 74 TEST(StringViewTest, ConstructionString8) |
| 75 { |
| 76 String string8Bit = String(StringImpl::create(kChars8, 5)); |
| 77 |
| 78 // StringView(const String&); |
| 79 ASSERT_TRUE(StringView(string8Bit).is8Bit()); |
| 80 EXPECT_FALSE(StringView(string8Bit).isNull()); |
| 81 EXPECT_EQ(string8Bit.characters8(), StringView(string8Bit).characters8()); |
| 82 EXPECT_EQ(string8Bit.length(), StringView(string8Bit).length()); |
| 83 EXPECT_STREQ(kChars, StringView(string8Bit).toString().utf8().data()); |
| 84 |
| 85 // StringView(const String&, unsigned offset); |
| 86 ASSERT_TRUE(StringView(string8Bit, 2).is8Bit()); |
| 87 EXPECT_FALSE(StringView(string8Bit, 2).isNull()); |
| 88 EXPECT_EQ(string8Bit.characters8() + 2, StringView(string8Bit, 2).characters
8()); |
| 89 EXPECT_EQ(3u, StringView(string8Bit, 2).length()); |
| 90 EXPECT_EQ(StringView("345"), StringView(string8Bit, 2).characters8()); |
| 91 EXPECT_STREQ("345", StringView(string8Bit, 2).toString().utf8().data()); |
| 92 |
| 93 // StringView(const String&, unsigned offset, unsigned length); |
| 94 ASSERT_TRUE(StringView(string8Bit, 2, 1).is8Bit()); |
| 95 EXPECT_FALSE(StringView(string8Bit, 2, 1).isNull()); |
| 96 EXPECT_EQ(string8Bit.characters8() + 2, StringView(string8Bit, 2, 1).charact
ers8()); |
| 97 EXPECT_EQ(1u, StringView(string8Bit, 2, 1).length()); |
| 98 EXPECT_EQ(StringView("3"), StringView(string8Bit, 2, 1)); |
| 99 EXPECT_STREQ("3", StringView(string8Bit, 2, 1).toString().utf8().data()); |
| 100 } |
| 101 |
| 102 TEST(StringViewTest, ConstructionString16) |
| 103 { |
| 104 String string16Bit = String(StringImpl::create(kChars16, 5)); |
| 105 |
| 106 // StringView(const String&); |
| 107 ASSERT_FALSE(StringView(string16Bit).is8Bit()); |
| 108 EXPECT_FALSE(StringView(string16Bit).isNull()); |
| 109 EXPECT_EQ(string16Bit.characters16(), StringView(string16Bit).characters16()
); |
| 110 EXPECT_EQ(string16Bit.length(), StringView(string16Bit).length()); |
| 111 EXPECT_STREQ(kChars, StringView(string16Bit).toString().utf8().data()); |
| 112 |
| 113 // StringView(const String&, unsigned offset); |
| 114 ASSERT_FALSE(StringView(string16Bit, 2).is8Bit()); |
| 115 EXPECT_FALSE(StringView(string16Bit, 2).isNull()); |
| 116 EXPECT_EQ(string16Bit.characters16() + 2, StringView(string16Bit, 2).charact
ers16()); |
| 117 EXPECT_EQ(3u, StringView(string16Bit, 2).length()); |
| 118 EXPECT_EQ(StringView("345"), StringView(string16Bit, 2).characters16()); |
| 119 EXPECT_STREQ("345", StringView(string16Bit, 2).toString().utf8().data()); |
| 120 |
| 121 // StringView(const String&, unsigned offset, unsigned length); |
| 122 ASSERT_FALSE(StringView(string16Bit, 2, 1).is8Bit()); |
| 123 EXPECT_FALSE(StringView(string16Bit, 2, 1).isNull()); |
| 124 EXPECT_EQ(string16Bit.characters16() + 2, StringView(string16Bit, 2, 1).char
acters16()); |
| 125 EXPECT_EQ(1u, StringView(string16Bit, 2, 1).length()); |
| 126 EXPECT_EQ(StringView("3"), StringView(string16Bit, 2, 1)); |
| 127 EXPECT_STREQ("3", StringView(string16Bit, 2, 1).toString().utf8().data()); |
| 128 } |
| 129 |
| 130 TEST(StringViewTest, ConstructionAtomicString8) |
| 131 { |
| 132 AtomicString atom8Bit = AtomicString(StringImpl::create(kChars8, 5)); |
| 133 |
| 134 // StringView(const AtomicString&); |
| 135 ASSERT_TRUE(StringView(atom8Bit).is8Bit()); |
| 136 EXPECT_FALSE(StringView(atom8Bit).isNull()); |
| 137 EXPECT_EQ(atom8Bit.characters8(), StringView(atom8Bit).characters8()); |
| 138 EXPECT_EQ(atom8Bit.length(), StringView(atom8Bit).length()); |
| 139 EXPECT_STREQ(kChars, StringView(atom8Bit).toString().utf8().data()); |
| 140 |
| 141 // StringView(const AtomicString&, unsigned offset); |
| 142 ASSERT_TRUE(StringView(atom8Bit, 2).is8Bit()); |
| 143 EXPECT_FALSE(StringView(atom8Bit, 2).isNull()); |
| 144 EXPECT_EQ(atom8Bit.characters8() + 2, StringView(atom8Bit, 2).characters8())
; |
| 145 EXPECT_EQ(3u, StringView(atom8Bit, 2).length()); |
| 146 EXPECT_EQ(StringView("345"), StringView(atom8Bit, 2).characters8()); |
| 147 EXPECT_STREQ("345", StringView(atom8Bit, 2).toString().utf8().data()); |
| 148 |
| 149 // StringView(const AtomicString&, unsigned offset, unsigned length); |
| 150 ASSERT_TRUE(StringView(atom8Bit, 2, 1).is8Bit()); |
| 151 EXPECT_FALSE(StringView(atom8Bit, 2, 1).isNull()); |
| 152 EXPECT_EQ(atom8Bit.characters8() + 2, StringView(atom8Bit, 2, 1).characters8
()); |
| 153 EXPECT_EQ(1u, StringView(atom8Bit, 2, 1).length()); |
| 154 EXPECT_EQ(StringView("3"), StringView(atom8Bit, 2, 1)); |
| 155 EXPECT_STREQ("3", StringView(atom8Bit, 2, 1).toString().utf8().data()); |
| 156 } |
| 157 |
| 158 TEST(StringViewTest, ConstructionAtomicString16) |
| 159 { |
| 160 AtomicString atom16Bit = AtomicString(StringImpl::create(kChars16, 5)); |
| 161 |
| 162 // StringView(const AtomicString&); |
| 163 ASSERT_FALSE(StringView(atom16Bit).is8Bit()); |
| 164 EXPECT_FALSE(StringView(atom16Bit).isNull()); |
| 165 EXPECT_EQ(atom16Bit.characters16(), StringView(atom16Bit).characters16()); |
| 166 EXPECT_EQ(atom16Bit.length(), StringView(atom16Bit).length()); |
| 167 EXPECT_STREQ(kChars, StringView(atom16Bit).toString().utf8().data()); |
| 168 |
| 169 // StringView(const AtomicString&, unsigned offset); |
| 170 ASSERT_FALSE(StringView(atom16Bit, 2).is8Bit()); |
| 171 EXPECT_FALSE(StringView(atom16Bit, 2).isNull()); |
| 172 EXPECT_EQ(atom16Bit.characters16() + 2, StringView(atom16Bit, 2).characters1
6()); |
| 173 EXPECT_EQ(3u, StringView(atom16Bit, 2).length()); |
| 174 EXPECT_EQ(StringView("345"), StringView(atom16Bit, 2).characters16()); |
| 175 EXPECT_STREQ("345", StringView(atom16Bit, 2).toString().utf8().data()); |
| 176 |
| 177 // StringView(const AtomicString&, unsigned offset, unsigned length); |
| 178 ASSERT_FALSE(StringView(atom16Bit, 2, 1).is8Bit()); |
| 179 EXPECT_FALSE(StringView(atom16Bit, 2, 1).isNull()); |
| 180 EXPECT_EQ(atom16Bit.characters16() + 2, StringView(atom16Bit, 2, 1).characte
rs16()); |
| 181 EXPECT_EQ(1u, StringView(atom16Bit, 2, 1).length()); |
| 182 EXPECT_EQ(StringView("3"), StringView(atom16Bit, 2, 1)); |
| 183 EXPECT_STREQ("3", StringView(atom16Bit, 2, 1).toString().utf8().data()); |
| 184 } |
| 185 |
| 186 TEST(StringViewTest, ConstructionStringView8) |
| 187 { |
| 188 StringView view8Bit = StringView(kChars8, 5); |
| 189 |
| 190 // StringView(StringView&); |
| 191 ASSERT_TRUE(StringView(view8Bit).is8Bit()); |
| 192 EXPECT_FALSE(StringView(view8Bit).isNull()); |
| 193 EXPECT_EQ(view8Bit.characters8(), StringView(view8Bit).characters8()); |
| 194 EXPECT_EQ(view8Bit.length(), StringView(view8Bit).length()); |
| 195 EXPECT_STREQ(kChars, StringView(view8Bit).toString().utf8().data()); |
| 196 |
| 197 // StringView(const StringView&, unsigned offset); |
| 198 ASSERT_TRUE(StringView(view8Bit, 2).is8Bit()); |
| 199 EXPECT_FALSE(StringView(view8Bit, 2).isNull()); |
| 200 EXPECT_EQ(view8Bit.characters8() + 2, StringView(view8Bit, 2).characters8())
; |
| 201 EXPECT_EQ(3u, StringView(view8Bit, 2).length()); |
| 202 EXPECT_EQ(StringView("345"), StringView(view8Bit, 2).characters8()); |
| 203 EXPECT_STREQ("345", StringView(view8Bit, 2).toString().utf8().data()); |
| 204 |
| 205 // StringView(const StringView&, unsigned offset, unsigned length); |
| 206 ASSERT_TRUE(StringView(view8Bit, 2, 1).is8Bit()); |
| 207 EXPECT_FALSE(StringView(view8Bit, 2, 1).isNull()); |
| 208 EXPECT_EQ(view8Bit.characters8() + 2, StringView(view8Bit, 2, 1).characters8
()); |
| 209 EXPECT_EQ(1u, StringView(view8Bit, 2, 1).length()); |
| 210 EXPECT_EQ(StringView("3"), StringView(view8Bit, 2, 1)); |
| 211 EXPECT_STREQ("3", StringView(view8Bit, 2, 1).toString().utf8().data()); |
| 212 } |
| 213 |
| 214 TEST(StringViewTest, ConstructionStringView16) |
| 215 { |
| 216 StringView view16Bit = StringView(kChars16, 5); |
| 217 |
| 218 // StringView(StringView&); |
| 219 ASSERT_FALSE(StringView(view16Bit).is8Bit()); |
| 220 EXPECT_FALSE(StringView(view16Bit).isNull()); |
| 221 EXPECT_EQ(view16Bit.characters16(), StringView(view16Bit).characters16()); |
| 222 EXPECT_EQ(view16Bit.length(), StringView(view16Bit).length()); |
| 223 EXPECT_EQ(kChars, StringView(view16Bit).toString()); |
| 224 |
| 225 // StringView(const StringView&, unsigned offset); |
| 226 ASSERT_FALSE(StringView(view16Bit, 2).is8Bit()); |
| 227 EXPECT_FALSE(StringView(view16Bit, 2).isNull()); |
| 228 EXPECT_EQ(view16Bit.characters16() + 2, StringView(view16Bit, 2).characters1
6()); |
| 229 EXPECT_EQ(3u, StringView(view16Bit, 2).length()); |
| 230 EXPECT_EQ(StringView("345"), StringView(view16Bit, 2).characters16()); |
| 231 EXPECT_STREQ("345", StringView(view16Bit, 2).toString().utf8().data()); |
| 232 |
| 233 // StringView(const StringView&, unsigned offset, unsigned length); |
| 234 ASSERT_FALSE(StringView(view16Bit, 2, 1).is8Bit()); |
| 235 EXPECT_FALSE(StringView(view16Bit, 2, 1).isNull()); |
| 236 EXPECT_EQ(view16Bit.characters16() + 2, StringView(view16Bit, 2, 1).characte
rs16()); |
| 237 EXPECT_EQ(1u, StringView(view16Bit, 2, 1).length()); |
| 238 EXPECT_EQ(StringView("3"), StringView(view16Bit, 2, 1)); |
| 239 EXPECT_STREQ("3", StringView(view16Bit, 2, 1).toString().utf8().data()); |
| 240 } |
| 241 |
| 242 TEST(StringViewTest, ConstructionLiteral8) |
| 243 { |
| 244 // StringView(const LChar* chars); |
| 245 ASSERT_TRUE(StringView(kChars8).is8Bit()); |
| 246 EXPECT_FALSE(StringView(kChars8).isNull()); |
| 247 EXPECT_EQ(kChars8, StringView(kChars8).characters8()); |
| 248 EXPECT_EQ(5u, StringView(kChars8).length()); |
| 249 EXPECT_STREQ(kChars, StringView(kChars8).toString().utf8().data()); |
| 250 |
| 251 // StringView(const char* chars); |
| 252 ASSERT_TRUE(StringView(kChars).is8Bit()); |
| 253 EXPECT_FALSE(StringView(kChars).isNull()); |
| 254 EXPECT_EQ(kChars8, StringView(kChars).characters8()); |
| 255 EXPECT_EQ(5u, StringView(kChars).length()); |
| 256 EXPECT_STREQ(kChars, StringView(kChars).toString().utf8().data()); |
| 257 |
| 258 // StringView(const LChar* chars, unsigned length); |
| 259 ASSERT_TRUE(StringView(kChars8, 2).is8Bit()); |
| 260 EXPECT_FALSE(StringView(kChars8, 2).isNull()); |
| 261 EXPECT_EQ(2u, StringView(kChars8, 2).length()); |
| 262 EXPECT_EQ(StringView("12"), StringView(kChars8, 2)); |
| 263 EXPECT_STREQ("12", StringView(kChars8, 2).toString().utf8().data()); |
| 264 |
| 265 // StringView(const char* chars, unsigned length); |
| 266 ASSERT_TRUE(StringView(kChars, 2).is8Bit()); |
| 267 EXPECT_FALSE(StringView(kChars, 2).isNull()); |
| 268 EXPECT_EQ(2u, StringView(kChars, 2).length()); |
| 269 EXPECT_EQ(StringView("12"), StringView(kChars, 2)); |
| 270 EXPECT_STREQ("12", StringView(kChars, 2).toString().utf8().data()); |
| 271 } |
| 272 |
| 273 TEST(StringViewTest, ConstructionLiteral16) |
| 274 { |
| 275 // StringView(const UChar* chars); |
| 276 ASSERT_FALSE(StringView(kChars16).is8Bit()); |
| 277 EXPECT_FALSE(StringView(kChars16).isNull()); |
| 278 EXPECT_EQ(kChars16, StringView(kChars16).characters16()); |
| 279 EXPECT_EQ(5u, StringView(kChars16).length()); |
| 280 EXPECT_EQ(String(kChars16), StringView(kChars16).toString().utf8().data()); |
| 281 |
| 282 // StringView(const UChar* chars, unsigned length); |
| 283 ASSERT_FALSE(StringView(kChars16, 2).is8Bit()); |
| 284 EXPECT_FALSE(StringView(kChars16, 2).isNull()); |
| 285 EXPECT_EQ(kChars16, StringView(kChars16, 2).characters16()); |
| 286 EXPECT_EQ(StringView("12"), StringView(kChars16, 2)); |
| 287 EXPECT_EQ(StringView(reinterpret_cast<const UChar*>(u"12")), StringView(kCha
rs16, 2)); |
| 288 EXPECT_EQ(2u, StringView(kChars16, 2).length()); |
| 289 EXPECT_EQ(String("12"), StringView(kChars16, 2).toString()); |
| 290 } |
| 291 |
| 292 TEST(StringViewTest, IsEmpty) |
| 293 { |
| 294 EXPECT_FALSE(StringView(kChars).isEmpty()); |
| 295 EXPECT_TRUE(StringView(kChars, 0).isEmpty()); |
| 296 EXPECT_FALSE(StringView(String(kChars)).isEmpty()); |
| 297 EXPECT_TRUE(StringView(String(kChars), 5).isEmpty()); |
| 298 EXPECT_TRUE(StringView(String(kChars), 4, 0).isEmpty()); |
| 299 EXPECT_TRUE(StringView().isEmpty()); |
| 300 EXPECT_TRUE(StringView("").isEmpty()); |
| 301 EXPECT_TRUE(StringView(reinterpret_cast<const UChar*>(u"")).isEmpty()); |
| 302 EXPECT_FALSE(StringView(kChars16).isEmpty()); |
| 303 } |
| 304 |
| 305 TEST(StringViewTest, ToString) |
| 306 { |
| 307 // Empty string optimization. |
| 308 EXPECT_EQ(emptyString().impl(), StringView("").toString().impl()); |
| 309 // NOTE: All the construction tests also check toString(). |
| 310 } |
| 311 |
| 312 TEST(StringViewTest, NullString) |
| 313 { |
| 314 EXPECT_TRUE(StringView().isNull()); |
| 315 EXPECT_TRUE(StringView(String()).isNull()); |
| 316 EXPECT_TRUE(StringView(AtomicString()).isNull()); |
| 317 EXPECT_TRUE(StringView(static_cast<const char*>(nullptr)).isNull()); |
| 318 StringView view(kChars); |
| 319 EXPECT_FALSE(view.isNull()); |
| 320 view.clear(); |
| 321 EXPECT_TRUE(view.isNull()); |
| 322 EXPECT_EQ(String(), StringView()); |
| 323 EXPECT_TRUE(StringView().toString().isNull()); |
| 324 } |
| 325 |
| 326 } // namespace WTF |
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