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Issue 2595063002: debuggng for PR31361
Patch Set: Created 4 years ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/strings/string_number_conversions.h" 5 #include "base/strings/string_number_conversions.h"
6 6
7 #include <errno.h> 7 #include <errno.h>
8 #include <limits.h> 8 #include <limits.h>
9 #include <stddef.h> 9 #include <stddef.h>
10 #include <stdint.h> 10 #include <stdint.h>
11 #include <stdio.h> 11 #include <stdio.h>
12 12
13 #include <cmath> 13 #include <cmath>
14 #include <limits> 14 #include <limits>
15 15
16 #include "base/bit_cast.h" 16 #include "base/bit_cast.h"
17 #include "base/format_macros.h" 17 #include "base/format_macros.h"
18 #include "base/macros.h" 18 #include "base/macros.h"
19 #include "base/strings/stringprintf.h" 19 #include "base/strings/stringprintf.h"
20 #include "base/strings/utf_string_conversions.h" 20 #include "base/strings/utf_string_conversions.h"
21 #include "testing/gtest/include/gtest/gtest.h" 21 #include "testing/gtest/include/gtest/gtest.h"
22 22
23 namespace base { 23 namespace base {
24 24
25 namespace {
26
27 template <typename INT>
28 struct IntToStringTest {
29 INT num;
30 const char* sexpected;
31 const char* uexpected;
32 };
33
34 } // namespace
35
36 TEST(StringNumberConversionsTest, IntToString) {
37 static const IntToStringTest<int> int_tests[] = {
38 { 0, "0", "0" },
39 { -1, "-1", "4294967295" },
40 { std::numeric_limits<int>::max(), "2147483647", "2147483647" },
41 { std::numeric_limits<int>::min(), "-2147483648", "2147483648" },
42 };
43 static const IntToStringTest<int64_t> int64_tests[] = {
44 {0, "0", "0"},
45 {-1, "-1", "18446744073709551615"},
46 {
47 std::numeric_limits<int64_t>::max(), "9223372036854775807",
48 "9223372036854775807",
49 },
50 {std::numeric_limits<int64_t>::min(), "-9223372036854775808",
51 "9223372036854775808"},
52 };
53
54 for (size_t i = 0; i < arraysize(int_tests); ++i) {
55 const IntToStringTest<int>* test = &int_tests[i];
56 EXPECT_EQ(IntToString(test->num), test->sexpected);
57 EXPECT_EQ(IntToString16(test->num), UTF8ToUTF16(test->sexpected));
58 EXPECT_EQ(UintToString(test->num), test->uexpected);
59 EXPECT_EQ(UintToString16(test->num), UTF8ToUTF16(test->uexpected));
60 }
61 for (size_t i = 0; i < arraysize(int64_tests); ++i) {
62 const IntToStringTest<int64_t>* test = &int64_tests[i];
63 EXPECT_EQ(Int64ToString(test->num), test->sexpected);
64 EXPECT_EQ(Int64ToString16(test->num), UTF8ToUTF16(test->sexpected));
65 EXPECT_EQ(Uint64ToString(test->num), test->uexpected);
66 EXPECT_EQ(Uint64ToString16(test->num), UTF8ToUTF16(test->uexpected));
67 }
68 }
69
70 TEST(StringNumberConversionsTest, Uint64ToString) {
71 static const struct {
72 uint64_t input;
73 std::string output;
74 } cases[] = {
75 {0, "0"},
76 {42, "42"},
77 {INT_MAX, "2147483647"},
78 {std::numeric_limits<uint64_t>::max(), "18446744073709551615"},
79 };
80
81 for (size_t i = 0; i < arraysize(cases); ++i)
82 EXPECT_EQ(cases[i].output, Uint64ToString(cases[i].input));
83 }
84
85 TEST(StringNumberConversionsTest, SizeTToString) {
86 size_t size_t_max = std::numeric_limits<size_t>::max();
87 std::string size_t_max_string = StringPrintf("%" PRIuS, size_t_max);
88
89 static const struct {
90 size_t input;
91 std::string output;
92 } cases[] = {
93 {0, "0"},
94 {9, "9"},
95 {42, "42"},
96 {INT_MAX, "2147483647"},
97 {2147483648U, "2147483648"},
98 #if SIZE_MAX > 4294967295U
99 {99999999999U, "99999999999"},
100 #endif
101 {size_t_max, size_t_max_string},
102 };
103
104 for (size_t i = 0; i < arraysize(cases); ++i)
105 EXPECT_EQ(cases[i].output, Uint64ToString(cases[i].input));
106 }
107
108 TEST(StringNumberConversionsTest, StringToInt) {
109 static const struct {
110 std::string input;
111 int output;
112 bool success;
113 } cases[] = {
114 {"0", 0, true},
115 {"42", 42, true},
116 {"42\x99", 42, false},
117 {"\x99" "42\x99", 0, false},
118 {"-2147483648", INT_MIN, true},
119 {"2147483647", INT_MAX, true},
120 {"", 0, false},
121 {" 42", 42, false},
122 {"42 ", 42, false},
123 {"\t\n\v\f\r 42", 42, false},
124 {"blah42", 0, false},
125 {"42blah", 42, false},
126 {"blah42blah", 0, false},
127 {"-273.15", -273, false},
128 {"+98.6", 98, false},
129 {"--123", 0, false},
130 {"++123", 0, false},
131 {"-+123", 0, false},
132 {"+-123", 0, false},
133 {"-", 0, false},
134 {"-2147483649", INT_MIN, false},
135 {"-99999999999", INT_MIN, false},
136 {"2147483648", INT_MAX, false},
137 {"99999999999", INT_MAX, false},
138 };
139
140 for (size_t i = 0; i < arraysize(cases); ++i) {
141 int output = cases[i].output ^ 1; // Ensure StringToInt wrote something.
142 EXPECT_EQ(cases[i].success, StringToInt(cases[i].input, &output));
143 EXPECT_EQ(cases[i].output, output);
144
145 string16 utf16_input = UTF8ToUTF16(cases[i].input);
146 output = cases[i].output ^ 1; // Ensure StringToInt wrote something.
147 EXPECT_EQ(cases[i].success, StringToInt(utf16_input, &output));
148 EXPECT_EQ(cases[i].output, output);
149 }
150
151 // One additional test to verify that conversion of numbers in strings with
152 // embedded NUL characters. The NUL and extra data after it should be
153 // interpreted as junk after the number.
154 const char input[] = "6\06";
155 std::string input_string(input, arraysize(input) - 1);
156 int output;
157 EXPECT_FALSE(StringToInt(input_string, &output));
158 EXPECT_EQ(6, output);
159
160 string16 utf16_input = UTF8ToUTF16(input_string);
161 output = 0;
162 EXPECT_FALSE(StringToInt(utf16_input, &output));
163 EXPECT_EQ(6, output);
164
165 output = 0;
166 const char16 negative_wide_input[] = { 0xFF4D, '4', '2', 0};
167 EXPECT_FALSE(StringToInt(string16(negative_wide_input), &output));
168 EXPECT_EQ(0, output);
169 }
170
171 TEST(StringNumberConversionsTest, StringToUint) {
172 static const struct {
173 std::string input;
174 unsigned output;
175 bool success;
176 } cases[] = {
177 {"0", 0, true},
178 {"42", 42, true},
179 {"42\x99", 42, false},
180 {"\x99" "42\x99", 0, false},
181 {"-2147483648", 0, false},
182 {"2147483647", INT_MAX, true},
183 {"", 0, false},
184 {" 42", 42, false},
185 {"42 ", 42, false},
186 {"\t\n\v\f\r 42", 42, false},
187 {"blah42", 0, false},
188 {"42blah", 42, false},
189 {"blah42blah", 0, false},
190 {"-273.15", 0, false},
191 {"+98.6", 98, false},
192 {"--123", 0, false},
193 {"++123", 0, false},
194 {"-+123", 0, false},
195 {"+-123", 0, false},
196 {"-", 0, false},
197 {"-2147483649", 0, false},
198 {"-99999999999", 0, false},
199 {"4294967295", UINT_MAX, true},
200 {"4294967296", UINT_MAX, false},
201 {"99999999999", UINT_MAX, false},
202 };
203
204 for (size_t i = 0; i < arraysize(cases); ++i) {
205 unsigned output =
206 cases[i].output ^ 1; // Ensure StringToUint wrote something.
207 EXPECT_EQ(cases[i].success, StringToUint(cases[i].input, &output));
208 EXPECT_EQ(cases[i].output, output);
209
210 string16 utf16_input = UTF8ToUTF16(cases[i].input);
211 output = cases[i].output ^ 1; // Ensure StringToUint wrote something.
212 EXPECT_EQ(cases[i].success, StringToUint(utf16_input, &output));
213 EXPECT_EQ(cases[i].output, output);
214 }
215
216 // One additional test to verify that conversion of numbers in strings with
217 // embedded NUL characters. The NUL and extra data after it should be
218 // interpreted as junk after the number.
219 const char input[] = "6\06";
220 std::string input_string(input, arraysize(input) - 1);
221 unsigned output;
222 EXPECT_FALSE(StringToUint(input_string, &output));
223 EXPECT_EQ(6U, output);
224
225 string16 utf16_input = UTF8ToUTF16(input_string);
226 output = 0;
227 EXPECT_FALSE(StringToUint(utf16_input, &output));
228 EXPECT_EQ(6U, output);
229
230 output = 0;
231 const char16 negative_wide_input[] = { 0xFF4D, '4', '2', 0};
232 EXPECT_FALSE(StringToUint(string16(negative_wide_input), &output));
233 EXPECT_EQ(0U, output);
234 }
235
236 TEST(StringNumberConversionsTest, StringToInt64) {
237 static const struct {
238 std::string input;
239 int64_t output;
240 bool success;
241 } cases[] = {
242 {"0", 0, true},
243 {"42", 42, true},
244 {"-2147483648", INT_MIN, true},
245 {"2147483647", INT_MAX, true},
246 {"-2147483649", INT64_C(-2147483649), true},
247 {"-99999999999", INT64_C(-99999999999), true},
248 {"2147483648", INT64_C(2147483648), true},
249 {"99999999999", INT64_C(99999999999), true},
250 {"9223372036854775807", std::numeric_limits<int64_t>::max(), true},
251 {"-9223372036854775808", std::numeric_limits<int64_t>::min(), true},
252 {"09", 9, true},
253 {"-09", -9, true},
254 {"", 0, false},
255 {" 42", 42, false},
256 {"42 ", 42, false},
257 {"0x42", 0, false},
258 {"\t\n\v\f\r 42", 42, false},
259 {"blah42", 0, false},
260 {"42blah", 42, false},
261 {"blah42blah", 0, false},
262 {"-273.15", -273, false},
263 {"+98.6", 98, false},
264 {"--123", 0, false},
265 {"++123", 0, false},
266 {"-+123", 0, false},
267 {"+-123", 0, false},
268 {"-", 0, false},
269 {"-9223372036854775809", std::numeric_limits<int64_t>::min(), false},
270 {"-99999999999999999999", std::numeric_limits<int64_t>::min(), false},
271 {"9223372036854775808", std::numeric_limits<int64_t>::max(), false},
272 {"99999999999999999999", std::numeric_limits<int64_t>::max(), false},
273 };
274
275 for (size_t i = 0; i < arraysize(cases); ++i) {
276 int64_t output = 0;
277 EXPECT_EQ(cases[i].success, StringToInt64(cases[i].input, &output));
278 EXPECT_EQ(cases[i].output, output);
279
280 string16 utf16_input = UTF8ToUTF16(cases[i].input);
281 output = 0;
282 EXPECT_EQ(cases[i].success, StringToInt64(utf16_input, &output));
283 EXPECT_EQ(cases[i].output, output);
284 }
285
286 // One additional test to verify that conversion of numbers in strings with
287 // embedded NUL characters. The NUL and extra data after it should be
288 // interpreted as junk after the number.
289 const char input[] = "6\06";
290 std::string input_string(input, arraysize(input) - 1);
291 int64_t output;
292 EXPECT_FALSE(StringToInt64(input_string, &output));
293 EXPECT_EQ(6, output);
294
295 string16 utf16_input = UTF8ToUTF16(input_string);
296 output = 0;
297 EXPECT_FALSE(StringToInt64(utf16_input, &output));
298 EXPECT_EQ(6, output);
299 }
300
301 TEST(StringNumberConversionsTest, StringToUint64) {
302 static const struct {
303 std::string input;
304 uint64_t output;
305 bool success;
306 } cases[] = {
307 {"0", 0, true},
308 {"42", 42, true},
309 {"-2147483648", 0, false},
310 {"2147483647", INT_MAX, true},
311 {"-2147483649", 0, false},
312 {"-99999999999", 0, false},
313 {"2147483648", UINT64_C(2147483648), true},
314 {"99999999999", UINT64_C(99999999999), true},
315 {"9223372036854775807", std::numeric_limits<int64_t>::max(), true},
316 {"-9223372036854775808", 0, false},
317 {"09", 9, true},
318 {"-09", 0, false},
319 {"", 0, false},
320 {" 42", 42, false},
321 {"42 ", 42, false},
322 {"0x42", 0, false},
323 {"\t\n\v\f\r 42", 42, false},
324 {"blah42", 0, false},
325 {"42blah", 42, false},
326 {"blah42blah", 0, false},
327 {"-273.15", 0, false},
328 {"+98.6", 98, false},
329 {"--123", 0, false},
330 {"++123", 0, false},
331 {"-+123", 0, false},
332 {"+-123", 0, false},
333 {"-", 0, false},
334 {"-9223372036854775809", 0, false},
335 {"-99999999999999999999", 0, false},
336 {"9223372036854775808", UINT64_C(9223372036854775808), true},
337 {"99999999999999999999", std::numeric_limits<uint64_t>::max(), false},
338 {"18446744073709551615", std::numeric_limits<uint64_t>::max(), true},
339 {"18446744073709551616", std::numeric_limits<uint64_t>::max(), false},
340 };
341
342 for (size_t i = 0; i < arraysize(cases); ++i) {
343 uint64_t output = 0;
344 EXPECT_EQ(cases[i].success, StringToUint64(cases[i].input, &output));
345 EXPECT_EQ(cases[i].output, output);
346
347 string16 utf16_input = UTF8ToUTF16(cases[i].input);
348 output = 0;
349 EXPECT_EQ(cases[i].success, StringToUint64(utf16_input, &output));
350 EXPECT_EQ(cases[i].output, output);
351 }
352
353 // One additional test to verify that conversion of numbers in strings with
354 // embedded NUL characters. The NUL and extra data after it should be
355 // interpreted as junk after the number.
356 const char input[] = "6\06";
357 std::string input_string(input, arraysize(input) - 1);
358 uint64_t output;
359 EXPECT_FALSE(StringToUint64(input_string, &output));
360 EXPECT_EQ(6U, output);
361
362 string16 utf16_input = UTF8ToUTF16(input_string);
363 output = 0;
364 EXPECT_FALSE(StringToUint64(utf16_input, &output));
365 EXPECT_EQ(6U, output);
366 }
367
368 TEST(StringNumberConversionsTest, StringToSizeT) {
369 size_t size_t_max = std::numeric_limits<size_t>::max();
370 std::string size_t_max_string = StringPrintf("%" PRIuS, size_t_max);
371
372 static const struct {
373 std::string input;
374 size_t output;
375 bool success;
376 } cases[] = {
377 {"0", 0, true},
378 {"42", 42, true},
379 {"-2147483648", 0, false},
380 {"2147483647", INT_MAX, true},
381 {"-2147483649", 0, false},
382 {"-99999999999", 0, false},
383 {"2147483648", 2147483648U, true},
384 #if SIZE_MAX > 4294967295U
385 {"99999999999", 99999999999U, true},
386 #endif
387 {"-9223372036854775808", 0, false},
388 {"09", 9, true},
389 {"-09", 0, false},
390 {"", 0, false},
391 {" 42", 42, false},
392 {"42 ", 42, false},
393 {"0x42", 0, false},
394 {"\t\n\v\f\r 42", 42, false},
395 {"blah42", 0, false},
396 {"42blah", 42, false},
397 {"blah42blah", 0, false},
398 {"-273.15", 0, false},
399 {"+98.6", 98, false},
400 {"--123", 0, false},
401 {"++123", 0, false},
402 {"-+123", 0, false},
403 {"+-123", 0, false},
404 {"-", 0, false},
405 {"-9223372036854775809", 0, false},
406 {"-99999999999999999999", 0, false},
407 {"999999999999999999999999", size_t_max, false},
408 {size_t_max_string, size_t_max, true},
409 };
410
411 for (size_t i = 0; i < arraysize(cases); ++i) {
412 size_t output = 0;
413 EXPECT_EQ(cases[i].success, StringToSizeT(cases[i].input, &output));
414 EXPECT_EQ(cases[i].output, output);
415
416 string16 utf16_input = UTF8ToUTF16(cases[i].input);
417 output = 0;
418 EXPECT_EQ(cases[i].success, StringToSizeT(utf16_input, &output));
419 EXPECT_EQ(cases[i].output, output);
420 }
421
422 // One additional test to verify that conversion of numbers in strings with
423 // embedded NUL characters. The NUL and extra data after it should be
424 // interpreted as junk after the number.
425 const char input[] = "6\06";
426 std::string input_string(input, arraysize(input) - 1);
427 size_t output;
428 EXPECT_FALSE(StringToSizeT(input_string, &output));
429 EXPECT_EQ(6U, output);
430
431 string16 utf16_input = UTF8ToUTF16(input_string);
432 output = 0;
433 EXPECT_FALSE(StringToSizeT(utf16_input, &output));
434 EXPECT_EQ(6U, output);
435 }
436
437 TEST(StringNumberConversionsTest, HexStringToInt) {
438 static const struct {
439 std::string input;
440 int64_t output;
441 bool success;
442 } cases[] = {
443 {"0", 0, true},
444 {"42", 66, true},
445 {"-42", -66, true},
446 {"+42", 66, true},
447 {"7fffffff", INT_MAX, true},
448 {"-80000000", INT_MIN, true},
449 {"80000000", INT_MAX, false}, // Overflow test.
450 {"-80000001", INT_MIN, false}, // Underflow test.
451 {"0x42", 66, true},
452 {"-0x42", -66, true},
453 {"+0x42", 66, true},
454 {"0x7fffffff", INT_MAX, true},
455 {"-0x80000000", INT_MIN, true},
456 {"-80000000", INT_MIN, true},
457 {"80000000", INT_MAX, false}, // Overflow test.
458 {"-80000001", INT_MIN, false}, // Underflow test.
459 {"0x0f", 15, true},
460 {"0f", 15, true},
461 {" 45", 0x45, false},
462 {"\t\n\v\f\r 0x45", 0x45, false},
463 {" 45", 0x45, false},
464 {"45 ", 0x45, false},
465 {"45:", 0x45, false},
466 {"efgh", 0xef, false},
467 {"0xefgh", 0xef, false},
468 {"hgfe", 0, false},
469 {"-", 0, false},
470 {"", 0, false},
471 {"0x", 0, false},
472 };
473
474 for (size_t i = 0; i < arraysize(cases); ++i) {
475 int output = 0;
476 EXPECT_EQ(cases[i].success, HexStringToInt(cases[i].input, &output));
477 EXPECT_EQ(cases[i].output, output);
478 }
479 // One additional test to verify that conversion of numbers in strings with
480 // embedded NUL characters. The NUL and extra data after it should be
481 // interpreted as junk after the number.
482 const char input[] = "0xc0ffee\0" "9";
483 std::string input_string(input, arraysize(input) - 1);
484 int output;
485 EXPECT_FALSE(HexStringToInt(input_string, &output));
486 EXPECT_EQ(0xc0ffee, output);
487 }
488
489 TEST(StringNumberConversionsTest, HexStringToUInt) {
490 static const struct {
491 std::string input;
492 uint32_t output;
493 bool success;
494 } cases[] = {
495 {"0", 0, true},
496 {"42", 0x42, true},
497 {"-42", 0, false},
498 {"+42", 0x42, true},
499 {"7fffffff", INT_MAX, true},
500 {"-80000000", 0, false},
501 {"ffffffff", 0xffffffff, true},
502 {"DeadBeef", 0xdeadbeef, true},
503 {"0x42", 0x42, true},
504 {"-0x42", 0, false},
505 {"+0x42", 0x42, true},
506 {"0x7fffffff", INT_MAX, true},
507 {"-0x80000000", 0, false},
508 {"0xffffffff", std::numeric_limits<uint32_t>::max(), true},
509 {"0XDeadBeef", 0xdeadbeef, true},
510 {"0x7fffffffffffffff", std::numeric_limits<uint32_t>::max(),
511 false}, // Overflow test.
512 {"-0x8000000000000000", 0, false},
513 {"0x8000000000000000", std::numeric_limits<uint32_t>::max(),
514 false}, // Overflow test.
515 {"-0x8000000000000001", 0, false},
516 {"0xFFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(),
517 false}, // Overflow test.
518 {"FFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(),
519 false}, // Overflow test.
520 {"0x0000000000000000", 0, true},
521 {"0000000000000000", 0, true},
522 {"1FFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(),
523 false}, // Overflow test.
524 {"0x0f", 0x0f, true},
525 {"0f", 0x0f, true},
526 {" 45", 0x45, false},
527 {"\t\n\v\f\r 0x45", 0x45, false},
528 {" 45", 0x45, false},
529 {"45 ", 0x45, false},
530 {"45:", 0x45, false},
531 {"efgh", 0xef, false},
532 {"0xefgh", 0xef, false},
533 {"hgfe", 0, false},
534 {"-", 0, false},
535 {"", 0, false},
536 {"0x", 0, false},
537 };
538
539 for (size_t i = 0; i < arraysize(cases); ++i) {
540 uint32_t output = 0;
541 EXPECT_EQ(cases[i].success, HexStringToUInt(cases[i].input, &output));
542 EXPECT_EQ(cases[i].output, output);
543 }
544 // One additional test to verify that conversion of numbers in strings with
545 // embedded NUL characters. The NUL and extra data after it should be
546 // interpreted as junk after the number.
547 const char input[] = "0xc0ffee\0" "9";
548 std::string input_string(input, arraysize(input) - 1);
549 uint32_t output;
550 EXPECT_FALSE(HexStringToUInt(input_string, &output));
551 EXPECT_EQ(0xc0ffeeU, output);
552 }
553
554 TEST(StringNumberConversionsTest, HexStringToInt64) {
555 static const struct {
556 std::string input;
557 int64_t output;
558 bool success;
559 } cases[] = {
560 {"0", 0, true},
561 {"42", 66, true},
562 {"-42", -66, true},
563 {"+42", 66, true},
564 {"40acd88557b", INT64_C(4444444448123), true},
565 {"7fffffff", INT_MAX, true},
566 {"-80000000", INT_MIN, true},
567 {"ffffffff", 0xffffffff, true},
568 {"DeadBeef", 0xdeadbeef, true},
569 {"0x42", 66, true},
570 {"-0x42", -66, true},
571 {"+0x42", 66, true},
572 {"0x40acd88557b", INT64_C(4444444448123), true},
573 {"0x7fffffff", INT_MAX, true},
574 {"-0x80000000", INT_MIN, true},
575 {"0xffffffff", 0xffffffff, true},
576 {"0XDeadBeef", 0xdeadbeef, true},
577 {"0x7fffffffffffffff", std::numeric_limits<int64_t>::max(), true},
578 {"-0x8000000000000000", std::numeric_limits<int64_t>::min(), true},
579 {"0x8000000000000000", std::numeric_limits<int64_t>::max(),
580 false}, // Overflow test.
581 {"-0x8000000000000001", std::numeric_limits<int64_t>::min(),
582 false}, // Underflow test.
583 {"0x0f", 15, true},
584 {"0f", 15, true},
585 {" 45", 0x45, false},
586 {"\t\n\v\f\r 0x45", 0x45, false},
587 {" 45", 0x45, false},
588 {"45 ", 0x45, false},
589 {"45:", 0x45, false},
590 {"efgh", 0xef, false},
591 {"0xefgh", 0xef, false},
592 {"hgfe", 0, false},
593 {"-", 0, false},
594 {"", 0, false},
595 {"0x", 0, false},
596 };
597
598 for (size_t i = 0; i < arraysize(cases); ++i) {
599 int64_t output = 0;
600 EXPECT_EQ(cases[i].success, HexStringToInt64(cases[i].input, &output));
601 EXPECT_EQ(cases[i].output, output);
602 }
603 // One additional test to verify that conversion of numbers in strings with
604 // embedded NUL characters. The NUL and extra data after it should be
605 // interpreted as junk after the number.
606 const char input[] = "0xc0ffee\0" "9";
607 std::string input_string(input, arraysize(input) - 1);
608 int64_t output;
609 EXPECT_FALSE(HexStringToInt64(input_string, &output));
610 EXPECT_EQ(0xc0ffee, output);
611 }
612
613 TEST(StringNumberConversionsTest, HexStringToUInt64) {
614 static const struct {
615 std::string input;
616 uint64_t output;
617 bool success;
618 } cases[] = {
619 {"0", 0, true},
620 {"42", 66, true},
621 {"-42", 0, false},
622 {"+42", 66, true},
623 {"40acd88557b", INT64_C(4444444448123), true},
624 {"7fffffff", INT_MAX, true},
625 {"-80000000", 0, false},
626 {"ffffffff", 0xffffffff, true},
627 {"DeadBeef", 0xdeadbeef, true},
628 {"0x42", 66, true},
629 {"-0x42", 0, false},
630 {"+0x42", 66, true},
631 {"0x40acd88557b", INT64_C(4444444448123), true},
632 {"0x7fffffff", INT_MAX, true},
633 {"-0x80000000", 0, false},
634 {"0xffffffff", 0xffffffff, true},
635 {"0XDeadBeef", 0xdeadbeef, true},
636 {"0x7fffffffffffffff", std::numeric_limits<int64_t>::max(), true},
637 {"-0x8000000000000000", 0, false},
638 {"0x8000000000000000", UINT64_C(0x8000000000000000), true},
639 {"-0x8000000000000001", 0, false},
640 {"0xFFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(), true},
641 {"FFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(), true},
642 {"0x0000000000000000", 0, true},
643 {"0000000000000000", 0, true},
644 {"1FFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(),
645 false}, // Overflow test.
646 {"0x0f", 15, true},
647 {"0f", 15, true},
648 {" 45", 0x45, false},
649 {"\t\n\v\f\r 0x45", 0x45, false},
650 {" 45", 0x45, false},
651 {"45 ", 0x45, false},
652 {"45:", 0x45, false},
653 {"efgh", 0xef, false},
654 {"0xefgh", 0xef, false},
655 {"hgfe", 0, false},
656 {"-", 0, false},
657 {"", 0, false},
658 {"0x", 0, false},
659 };
660
661 for (size_t i = 0; i < arraysize(cases); ++i) {
662 uint64_t output = 0;
663 EXPECT_EQ(cases[i].success, HexStringToUInt64(cases[i].input, &output));
664 EXPECT_EQ(cases[i].output, output);
665 }
666 // One additional test to verify that conversion of numbers in strings with
667 // embedded NUL characters. The NUL and extra data after it should be
668 // interpreted as junk after the number.
669 const char input[] = "0xc0ffee\0" "9";
670 std::string input_string(input, arraysize(input) - 1);
671 uint64_t output;
672 EXPECT_FALSE(HexStringToUInt64(input_string, &output));
673 EXPECT_EQ(0xc0ffeeU, output);
674 }
675
676 TEST(StringNumberConversionsTest, HexStringToBytes) { 25 TEST(StringNumberConversionsTest, HexStringToBytes) {
677 static const struct { 26 static const struct {
678 const std::string input; 27 const std::string input;
679 const char* output; 28 const char* output;
680 size_t output_len; 29 size_t output_len;
681 bool success; 30 bool success;
682 } cases[] = { 31 } cases[] = {
683 {"0", "", 0, false}, // odd number of characters fails 32 {"0", "", 0, false}, // odd number of characters fails
684 {"00", "\0", 1, true}, 33 {"00", "\0", 1, true},
685 {"42", "\x42", 1, true}, 34 {"42", "\x42", 1, true},
(...skipping 17 matching lines...) Expand all
703 for (size_t i = 0; i < arraysize(cases); ++i) { 52 for (size_t i = 0; i < arraysize(cases); ++i) {
704 std::vector<uint8_t> output; 53 std::vector<uint8_t> output;
705 std::vector<uint8_t> compare; 54 std::vector<uint8_t> compare;
706 EXPECT_EQ(cases[i].success, HexStringToBytes(cases[i].input, &output)) << 55 EXPECT_EQ(cases[i].success, HexStringToBytes(cases[i].input, &output)) <<
707 i << ": " << cases[i].input; 56 i << ": " << cases[i].input;
708 for (size_t j = 0; j < cases[i].output_len; ++j) 57 for (size_t j = 0; j < cases[i].output_len; ++j)
709 compare.push_back(static_cast<uint8_t>(cases[i].output[j])); 58 compare.push_back(static_cast<uint8_t>(cases[i].output[j]));
710 ASSERT_EQ(output.size(), compare.size()) << i << ": " << cases[i].input; 59 ASSERT_EQ(output.size(), compare.size()) << i << ": " << cases[i].input;
711 EXPECT_TRUE(std::equal(output.begin(), output.end(), compare.begin())) << 60 EXPECT_TRUE(std::equal(output.begin(), output.end(), compare.begin())) <<
712 i << ": " << cases[i].input; 61 i << ": " << cases[i].input;
62 for (size_t i = 0; i < compare.size(); ++i ) {
63 fprintf(stderr, "%x=%x ", output[i], compare[i]);
64 }
65 fprintf(stderr, "\n");
713 } 66 }
714 } 67 }
715 68
716 TEST(StringNumberConversionsTest, StringToDouble) {
717 static const struct {
718 std::string input;
719 double output;
720 bool success;
721 } cases[] = {
722 // Test different forms of zero.
723 {"0", 0.0, true},
724 {"+0", 0.0, true},
725 {"-0", 0.0, true},
726 {"0.0", 0.0, true},
727 {"000000000000000000000000000000.0", 0.0, true},
728 {"0.000000000000000000000000000", 0.0, true},
729
730 // Test the answer.
731 {"42", 42.0, true},
732 {"-42", -42.0, true},
733
734 // Test variances of an ordinary number.
735 {"123.45", 123.45, true},
736 {"-123.45", -123.45, true},
737 {"+123.45", 123.45, true},
738
739 // Test different forms of representation.
740 {"2.99792458e8", 299792458.0, true},
741 {"149597870.691E+3", 149597870691.0, true},
742 {"6.", 6.0, true},
743
744 // Test around the largest/smallest value that a double can represent.
745 {"9e307", 9e307, true},
746 {"1.7976e308", 1.7976e308, true},
747 {"1.7977e308", HUGE_VAL, false},
748 {"1.797693134862315807e+308", HUGE_VAL, true},
749 {"1.797693134862315808e+308", HUGE_VAL, false},
750 {"9e308", HUGE_VAL, false},
751 {"9e309", HUGE_VAL, false},
752 {"9e999", HUGE_VAL, false},
753 {"9e1999", HUGE_VAL, false},
754 {"9e19999", HUGE_VAL, false},
755 {"9e99999999999999999999", HUGE_VAL, false},
756 {"-9e307", -9e307, true},
757 {"-1.7976e308", -1.7976e308, true},
758 {"-1.7977e308", -HUGE_VAL, false},
759 {"-1.797693134862315807e+308", -HUGE_VAL, true},
760 {"-1.797693134862315808e+308", -HUGE_VAL, false},
761 {"-9e308", -HUGE_VAL, false},
762 {"-9e309", -HUGE_VAL, false},
763 {"-9e999", -HUGE_VAL, false},
764 {"-9e1999", -HUGE_VAL, false},
765 {"-9e19999", -HUGE_VAL, false},
766 {"-9e99999999999999999999", -HUGE_VAL, false},
767
768 // Test more exponents.
769 {"1e-2", 0.01, true},
770 {"42 ", 42.0, false},
771 {" 1e-2", 0.01, false},
772 {"1e-2 ", 0.01, false},
773 {"-1E-7", -0.0000001, true},
774 {"01e02", 100, true},
775 {"2.3e15", 2.3e15, true},
776 {"100e-309", 100e-309, true},
777
778 // Test some invalid cases.
779 {"\t\n\v\f\r -123.45e2", -12345.0, false},
780 {"+123 e4", 123.0, false},
781 {"123e ", 123.0, false},
782 {"123e", 123.0, false},
783 {" 2.99", 2.99, false},
784 {"1e3.4", 1000.0, false},
785 {"nothing", 0.0, false},
786 {"-", 0.0, false},
787 {"+", 0.0, false},
788 {"", 0.0, false},
789
790 // crbug.org/588726
791 {"-0.0010000000000000000000000000000000000000001e-256",
792 -1.0000000000000001e-259, true},
793 };
794
795 for (size_t i = 0; i < arraysize(cases); ++i) {
796 double output;
797 errno = 1;
798 EXPECT_EQ(cases[i].success, StringToDouble(cases[i].input, &output));
799 if (cases[i].success)
800 EXPECT_EQ(1, errno) << i; // confirm that errno is unchanged.
801 EXPECT_DOUBLE_EQ(cases[i].output, output);
802 }
803
804 // One additional test to verify that conversion of numbers in strings with
805 // embedded NUL characters. The NUL and extra data after it should be
806 // interpreted as junk after the number.
807 const char input[] = "3.14\0" "159";
808 std::string input_string(input, arraysize(input) - 1);
809 double output;
810 EXPECT_FALSE(StringToDouble(input_string, &output));
811 EXPECT_DOUBLE_EQ(3.14, output);
812 }
813
814 TEST(StringNumberConversionsTest, DoubleToString) {
815 static const struct {
816 double input;
817 const char* expected;
818 } cases[] = {
819 {0.0, "0"},
820 {1.25, "1.25"},
821 {1.33518e+012, "1.33518e+12"},
822 {1.33489e+012, "1.33489e+12"},
823 {1.33505e+012, "1.33505e+12"},
824 {1.33545e+009, "1335450000"},
825 {1.33503e+009, "1335030000"},
826 };
827
828 for (size_t i = 0; i < arraysize(cases); ++i) {
829 EXPECT_EQ(cases[i].expected, DoubleToString(cases[i].input));
830 }
831
832 // The following two values were seen in crashes in the wild.
833 const char input_bytes[8] = {0, 0, 0, 0, '\xee', '\x6d', '\x73', '\x42'};
834 double input = 0;
835 memcpy(&input, input_bytes, arraysize(input_bytes));
836 EXPECT_EQ("1335179083776", DoubleToString(input));
837 const char input_bytes2[8] =
838 {0, 0, 0, '\xa0', '\xda', '\x6c', '\x73', '\x42'};
839 input = 0;
840 memcpy(&input, input_bytes2, arraysize(input_bytes2));
841 EXPECT_EQ("1334890332160", DoubleToString(input));
842 }
843
844 TEST(StringNumberConversionsTest, HexEncode) {
845 std::string hex(HexEncode(NULL, 0));
846 EXPECT_EQ(hex.length(), 0U);
847 unsigned char bytes[] = {0x01, 0xff, 0x02, 0xfe, 0x03, 0x80, 0x81};
848 hex = HexEncode(bytes, sizeof(bytes));
849 EXPECT_EQ(hex.compare("01FF02FE038081"), 0);
850 }
851
852 // Test cases of known-bad strtod conversions that motivated the use of dmg_fp.
853 // See https://bugs.chromium.org/p/chromium/issues/detail?id=593512.
854 TEST(StringNumberConversionsTest, StrtodFailures) {
855 static const struct {
856 const char* input;
857 uint64_t expected;
858 } cases[] = {
859 // http://www.exploringbinary.com/incorrectly-rounded-conversions-in-visua l-c-plus-plus/
860 {"9214843084008499", 0x43405e6cec57761aULL},
861 {"0.500000000000000166533453693773481063544750213623046875",
862 0x3fe0000000000002ULL},
863 {"30078505129381147446200", 0x44997a3c7271b021ULL},
864 {"1777820000000000000001", 0x4458180d5bad2e3eULL},
865 {"0.500000000000000166547006220929549868969843373633921146392822265625",
866 0x3fe0000000000002ULL},
867 {"0.50000000000000016656055874808561867439493653364479541778564453125",
868 0x3fe0000000000002ULL},
869 {"0.3932922657273", 0x3fd92bb352c4623aULL},
870
871 // http://www.exploringbinary.com/incorrectly-rounded-conversions-in-gcc-a nd-glibc/
872 {"0.500000000000000166533453693773481063544750213623046875",
873 0x3fe0000000000002ULL},
874 {"3.518437208883201171875e13", 0x42c0000000000002ULL},
875 {"62.5364939768271845828", 0x404f44abd5aa7ca4ULL},
876 {"8.10109172351e-10", 0x3e0bd5cbaef0fd0cULL},
877 {"1.50000000000000011102230246251565404236316680908203125",
878 0x3ff8000000000000ULL},
879 {"9007199254740991.4999999999999999999999999999999995",
880 0x433fffffffffffffULL},
881
882 // http://www.exploringbinary.com/incorrect-decimal-to-floating-point-conv ersion-in-sqlite/
883 {"1e-23", 0x3b282db34012b251ULL},
884 {"8.533e+68", 0x4e3fa69165a8eea2ULL},
885 {"4.1006e-184", 0x19dbe0d1c7ea60c9ULL},
886 {"9.998e+307", 0x7fe1cc0a350ca87bULL},
887 {"9.9538452227e-280", 0x0602117ae45cde43ULL},
888 {"6.47660115e-260", 0x0a1fdd9e333badadULL},
889 {"7.4e+47", 0x49e033d7eca0adefULL},
890 {"5.92e+48", 0x4a1033d7eca0adefULL},
891 {"7.35e+66", 0x4dd172b70eababa9ULL},
892 {"8.32116e+55", 0x4b8b2628393e02cdULL},
893 };
894
895 for (const auto& test : cases) {
896 double output;
897 EXPECT_TRUE(StringToDouble(test.input, &output));
898 EXPECT_EQ(bit_cast<uint64_t>(output), test.expected);
899 }
900 }
901
902 } // namespace base 69 } // namespace base
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