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29 //
30 // Author: wan@google.com (Zhanyong Wan)
31
32 // Google Test - The Google C++ Testing Framework
33 //
34 // This file tests the universal value printer.
35
36 #include "gtest/gtest-printers.h"
37
38 #include <ctype.h>
39 #include <limits.h>
40 #include <string.h>
41 #include <algorithm>
42 #include <deque>
43 #include <list>
44 #include <map>
45 #include <set>
46 #include <sstream>
47 #include <string>
48 #include <utility>
49 #include <vector>
50
51 #include "gtest/gtest.h"
52
53 // hash_map and hash_set are available under Visual C++, or on Linux.
54 #if GTEST_HAS_UNORDERED_MAP_
55 # include <unordered_map> // NOLINT
56 #elif GTEST_HAS_HASH_MAP_
57 # include <hash_map> // NOLINT
58 #endif // GTEST_HAS_HASH_MAP_
59
60 #if GTEST_HAS_UNORDERED_SET_
61 # include <unordered_set> // NOLINT
62 #elif GTEST_HAS_HASH_SET_
63 # include <hash_set> // NOLINT
64 #endif // GTEST_HAS_HASH_SET_
65
66 #if GTEST_HAS_STD_FORWARD_LIST_
67 # include <forward_list> // NOLINT
68 #endif // GTEST_HAS_STD_FORWARD_LIST_
69
70 // Some user-defined types for testing the universal value printer.
71
72 // An anonymous enum type.
73 enum AnonymousEnum {
74 kAE1 = -1,
75 kAE2 = 1
76 };
77
78 // An enum without a user-defined printer.
79 enum EnumWithoutPrinter {
80 kEWP1 = -2,
81 kEWP2 = 42
82 };
83
84 // An enum with a << operator.
85 enum EnumWithStreaming {
86 kEWS1 = 10
87 };
88
operator <<(std::ostream & os,EnumWithStreaming e)89 std::ostream& operator<<(std::ostream& os, EnumWithStreaming e) {
90 return os << (e == kEWS1 ? "kEWS1" : "invalid");
91 }
92
93 // An enum with a PrintTo() function.
94 enum EnumWithPrintTo {
95 kEWPT1 = 1
96 };
97
PrintTo(EnumWithPrintTo e,std::ostream * os)98 void PrintTo(EnumWithPrintTo e, std::ostream* os) {
99 *os << (e == kEWPT1 ? "kEWPT1" : "invalid");
100 }
101
102 // A class implicitly convertible to BiggestInt.
103 class BiggestIntConvertible {
104 public:
operator ::testing::internal::BiggestInt() const105 operator ::testing::internal::BiggestInt() const { return 42; }
106 };
107
108 // A user-defined unprintable class template in the global namespace.
109 template <typename T>
110 class UnprintableTemplateInGlobal {
111 public:
UnprintableTemplateInGlobal()112 UnprintableTemplateInGlobal() : value_() {}
113 private:
114 T value_;
115 };
116
117 // A user-defined streamable type in the global namespace.
118 class StreamableInGlobal {
119 public:
~StreamableInGlobal()120 virtual ~StreamableInGlobal() {}
121 };
122
operator <<(::std::ostream & os,const StreamableInGlobal &)123 inline void operator<<(::std::ostream& os, const StreamableInGlobal& /* x */) {
124 os << "StreamableInGlobal";
125 }
126
operator <<(::std::ostream & os,const StreamableInGlobal *)127 void operator<<(::std::ostream& os, const StreamableInGlobal* /* x */) {
128 os << "StreamableInGlobal*";
129 }
130
131 namespace foo {
132
133 // A user-defined unprintable type in a user namespace.
134 class UnprintableInFoo {
135 public:
UnprintableInFoo()136 UnprintableInFoo() : z_(0) { memcpy(xy_, "\xEF\x12\x0\x0\x34\xAB\x0\x0", 8); }
z() const137 double z() const { return z_; }
138 private:
139 char xy_[8];
140 double z_;
141 };
142
143 // A user-defined printable type in a user-chosen namespace.
144 struct PrintableViaPrintTo {
PrintableViaPrintTofoo::PrintableViaPrintTo145 PrintableViaPrintTo() : value() {}
146 int value;
147 };
148
PrintTo(const PrintableViaPrintTo & x,::std::ostream * os)149 void PrintTo(const PrintableViaPrintTo& x, ::std::ostream* os) {
150 *os << "PrintableViaPrintTo: " << x.value;
151 }
152
153 // A type with a user-defined << for printing its pointer.
154 struct PointerPrintable {
155 };
156
operator <<(::std::ostream & os,const PointerPrintable *)157 ::std::ostream& operator<<(::std::ostream& os,
158 const PointerPrintable* /* x */) {
159 return os << "PointerPrintable*";
160 }
161
162 // A user-defined printable class template in a user-chosen namespace.
163 template <typename T>
164 class PrintableViaPrintToTemplate {
165 public:
PrintableViaPrintToTemplate(const T & a_value)166 explicit PrintableViaPrintToTemplate(const T& a_value) : value_(a_value) {}
167
value() const168 const T& value() const { return value_; }
169 private:
170 T value_;
171 };
172
173 template <typename T>
PrintTo(const PrintableViaPrintToTemplate<T> & x,::std::ostream * os)174 void PrintTo(const PrintableViaPrintToTemplate<T>& x, ::std::ostream* os) {
175 *os << "PrintableViaPrintToTemplate: " << x.value();
176 }
177
178 // A user-defined streamable class template in a user namespace.
179 template <typename T>
180 class StreamableTemplateInFoo {
181 public:
StreamableTemplateInFoo()182 StreamableTemplateInFoo() : value_() {}
183
value() const184 const T& value() const { return value_; }
185 private:
186 T value_;
187 };
188
189 template <typename T>
operator <<(::std::ostream & os,const StreamableTemplateInFoo<T> & x)190 inline ::std::ostream& operator<<(::std::ostream& os,
191 const StreamableTemplateInFoo<T>& x) {
192 return os << "StreamableTemplateInFoo: " << x.value();
193 }
194
195 // A user-defined streamable but recursivly-defined container type in
196 // a user namespace, it mimics therefore std::filesystem::path or
197 // boost::filesystem::path.
198 class PathLike {
199 public:
200 struct iterator
201 {
202 typedef PathLike value_type;
203 };
204 typedef iterator const_iterator;
205
PathLike()206 PathLike() {}
207
begin() const208 iterator begin() const { return iterator(); }
end() const209 iterator end() const { return iterator(); }
210
211 friend
operator <<(::std::ostream & os,const PathLike &)212 ::std::ostream& operator<<(::std::ostream& os, const PathLike&)
213 {
214 return os << "Streamable-PathLike";
215 }
216 };
217
218 } // namespace foo
219
220 namespace testing {
221 namespace gtest_printers_test {
222
223 using ::std::deque;
224 using ::std::list;
225 using ::std::make_pair;
226 using ::std::map;
227 using ::std::multimap;
228 using ::std::multiset;
229 using ::std::pair;
230 using ::std::set;
231 using ::std::vector;
232 using ::testing::PrintToString;
233 using ::testing::internal::FormatForComparisonFailureMessage;
234 using ::testing::internal::ImplicitCast_;
235 using ::testing::internal::NativeArray;
236 using ::testing::internal::RE;
237 using ::testing::internal::RelationToSourceReference;
238 using ::testing::internal::Strings;
239 using ::testing::internal::UniversalPrint;
240 using ::testing::internal::UniversalPrinter;
241 using ::testing::internal::UniversalTersePrint;
242 #if GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
243 using ::testing::internal::UniversalTersePrintTupleFieldsToStrings;
244 #endif
245 using ::testing::internal::string;
246
247 // The hash_* classes are not part of the C++ standard. STLport
248 // defines them in namespace std. MSVC defines them in ::stdext. GCC
249 // defines them in ::.
250 #if GTEST_HAS_UNORDERED_MAP_
251
252 #define GTEST_HAS_HASH_MAP_ 1
253 template<class Key, class T>
254 using hash_map = ::std::unordered_map<Key, T>;
255 template<class Key, class T>
256 using hash_multimap = ::std::unordered_multimap<Key, T>;
257
258 #elif GTEST_HAS_HASH_MAP_
259
260 #ifdef _STLP_HASH_MAP // We got <hash_map> from STLport.
261 using ::std::hash_map;
262 using ::std::hash_multimap;
263 #elif _MSC_VER
264 using ::stdext::hash_map;
265 using ::stdext::hash_multimap;
266 #endif
267
268 #endif
269
270 #if GTEST_HAS_UNORDERED_SET_
271
272 #define GTEST_HAS_HASH_SET_ 1
273 template<class Key>
274 using hash_set = ::std::unordered_set<Key>;
275 template<class Key>
276 using hash_multiset = ::std::unordered_multiset<Key>;
277
278 #elif GTEST_HAS_HASH_SET_
279
280 #ifdef _STLP_HASH_MAP // We got <hash_map> from STLport.
281 using ::std::hash_set;
282 using ::std::hash_multiset;
283 #elif _MSC_VER
284 using ::stdext::hash_set;
285 using ::stdext::hash_multiset;
286 #endif
287
288 #endif
289
290 // Prints a value to a string using the universal value printer. This
291 // is a helper for testing UniversalPrinter<T>::Print() for various types.
292 template <typename T>
Print(const T & value)293 std::string Print(const T& value) {
294 ::std::stringstream ss;
295 UniversalPrinter<T>::Print(value, &ss);
296 return ss.str();
297 }
298
299 // Prints a value passed by reference to a string, using the universal
300 // value printer. This is a helper for testing
301 // UniversalPrinter<T&>::Print() for various types.
302 template <typename T>
PrintByRef(const T & value)303 std::string PrintByRef(const T& value) {
304 ::std::stringstream ss;
305 UniversalPrinter<T&>::Print(value, &ss);
306 return ss.str();
307 }
308
309 // Tests printing various enum types.
310
TEST(PrintEnumTest,AnonymousEnum)311 TEST(PrintEnumTest, AnonymousEnum) {
312 EXPECT_EQ("-1", Print(kAE1));
313 EXPECT_EQ("1", Print(kAE2));
314 }
315
TEST(PrintEnumTest,EnumWithoutPrinter)316 TEST(PrintEnumTest, EnumWithoutPrinter) {
317 EXPECT_EQ("-2", Print(kEWP1));
318 EXPECT_EQ("42", Print(kEWP2));
319 }
320
TEST(PrintEnumTest,EnumWithStreaming)321 TEST(PrintEnumTest, EnumWithStreaming) {
322 EXPECT_EQ("kEWS1", Print(kEWS1));
323 EXPECT_EQ("invalid", Print(static_cast<EnumWithStreaming>(0)));
324 }
325
TEST(PrintEnumTest,EnumWithPrintTo)326 TEST(PrintEnumTest, EnumWithPrintTo) {
327 EXPECT_EQ("kEWPT1", Print(kEWPT1));
328 EXPECT_EQ("invalid", Print(static_cast<EnumWithPrintTo>(0)));
329 }
330
331 // Tests printing a class implicitly convertible to BiggestInt.
332
TEST(PrintClassTest,BiggestIntConvertible)333 TEST(PrintClassTest, BiggestIntConvertible) {
334 EXPECT_EQ("42", Print(BiggestIntConvertible()));
335 }
336
337 // Tests printing various char types.
338
339 // char.
TEST(PrintCharTest,PlainChar)340 TEST(PrintCharTest, PlainChar) {
341 EXPECT_EQ("'\\0'", Print('\0'));
342 EXPECT_EQ("'\\'' (39, 0x27)", Print('\''));
343 EXPECT_EQ("'\"' (34, 0x22)", Print('"'));
344 EXPECT_EQ("'?' (63, 0x3F)", Print('?'));
345 EXPECT_EQ("'\\\\' (92, 0x5C)", Print('\\'));
346 EXPECT_EQ("'\\a' (7)", Print('\a'));
347 EXPECT_EQ("'\\b' (8)", Print('\b'));
348 EXPECT_EQ("'\\f' (12, 0xC)", Print('\f'));
349 EXPECT_EQ("'\\n' (10, 0xA)", Print('\n'));
350 EXPECT_EQ("'\\r' (13, 0xD)", Print('\r'));
351 EXPECT_EQ("'\\t' (9)", Print('\t'));
352 EXPECT_EQ("'\\v' (11, 0xB)", Print('\v'));
353 EXPECT_EQ("'\\x7F' (127)", Print('\x7F'));
354 EXPECT_EQ("'\\xFF' (255)", Print('\xFF'));
355 EXPECT_EQ("' ' (32, 0x20)", Print(' '));
356 EXPECT_EQ("'a' (97, 0x61)", Print('a'));
357 }
358
359 // signed char.
TEST(PrintCharTest,SignedChar)360 TEST(PrintCharTest, SignedChar) {
361 EXPECT_EQ("'\\0'", Print(static_cast<signed char>('\0')));
362 EXPECT_EQ("'\\xCE' (-50)",
363 Print(static_cast<signed char>(-50)));
364 }
365
366 // unsigned char.
TEST(PrintCharTest,UnsignedChar)367 TEST(PrintCharTest, UnsignedChar) {
368 EXPECT_EQ("'\\0'", Print(static_cast<unsigned char>('\0')));
369 EXPECT_EQ("'b' (98, 0x62)",
370 Print(static_cast<unsigned char>('b')));
371 }
372
373 // Tests printing other simple, built-in types.
374
375 // bool.
TEST(PrintBuiltInTypeTest,Bool)376 TEST(PrintBuiltInTypeTest, Bool) {
377 EXPECT_EQ("false", Print(false));
378 EXPECT_EQ("true", Print(true));
379 }
380
381 // wchar_t.
TEST(PrintBuiltInTypeTest,Wchar_t)382 TEST(PrintBuiltInTypeTest, Wchar_t) {
383 EXPECT_EQ("L'\\0'", Print(L'\0'));
384 EXPECT_EQ("L'\\'' (39, 0x27)", Print(L'\''));
385 EXPECT_EQ("L'\"' (34, 0x22)", Print(L'"'));
386 EXPECT_EQ("L'?' (63, 0x3F)", Print(L'?'));
387 EXPECT_EQ("L'\\\\' (92, 0x5C)", Print(L'\\'));
388 EXPECT_EQ("L'\\a' (7)", Print(L'\a'));
389 EXPECT_EQ("L'\\b' (8)", Print(L'\b'));
390 EXPECT_EQ("L'\\f' (12, 0xC)", Print(L'\f'));
391 EXPECT_EQ("L'\\n' (10, 0xA)", Print(L'\n'));
392 EXPECT_EQ("L'\\r' (13, 0xD)", Print(L'\r'));
393 EXPECT_EQ("L'\\t' (9)", Print(L'\t'));
394 EXPECT_EQ("L'\\v' (11, 0xB)", Print(L'\v'));
395 EXPECT_EQ("L'\\x7F' (127)", Print(L'\x7F'));
396 EXPECT_EQ("L'\\xFF' (255)", Print(L'\xFF'));
397 EXPECT_EQ("L' ' (32, 0x20)", Print(L' '));
398 EXPECT_EQ("L'a' (97, 0x61)", Print(L'a'));
399 EXPECT_EQ("L'\\x576' (1398)", Print(static_cast<wchar_t>(0x576)));
400 EXPECT_EQ("L'\\xC74D' (51021)", Print(static_cast<wchar_t>(0xC74D)));
401 }
402
403 // Test that Int64 provides more storage than wchar_t.
TEST(PrintTypeSizeTest,Wchar_t)404 TEST(PrintTypeSizeTest, Wchar_t) {
405 EXPECT_LT(sizeof(wchar_t), sizeof(testing::internal::Int64));
406 }
407
408 // Various integer types.
TEST(PrintBuiltInTypeTest,Integer)409 TEST(PrintBuiltInTypeTest, Integer) {
410 EXPECT_EQ("'\\xFF' (255)", Print(static_cast<unsigned char>(255))); // uint8
411 EXPECT_EQ("'\\x80' (-128)", Print(static_cast<signed char>(-128))); // int8
412 EXPECT_EQ("65535", Print(USHRT_MAX)); // uint16
413 EXPECT_EQ("-32768", Print(SHRT_MIN)); // int16
414 EXPECT_EQ("4294967295", Print(UINT_MAX)); // uint32
415 EXPECT_EQ("-2147483648", Print(INT_MIN)); // int32
416 EXPECT_EQ("18446744073709551615",
417 Print(static_cast<testing::internal::UInt64>(-1))); // uint64
418 EXPECT_EQ("-9223372036854775808",
419 Print(static_cast<testing::internal::Int64>(1) << 63)); // int64
420 }
421
422 // Size types.
TEST(PrintBuiltInTypeTest,Size_t)423 TEST(PrintBuiltInTypeTest, Size_t) {
424 EXPECT_EQ("1", Print(sizeof('a'))); // size_t.
425 #if !GTEST_OS_WINDOWS
426 // Windows has no ssize_t type.
427 EXPECT_EQ("-2", Print(static_cast<ssize_t>(-2))); // ssize_t.
428 #endif // !GTEST_OS_WINDOWS
429 }
430
431 // Floating-points.
TEST(PrintBuiltInTypeTest,FloatingPoints)432 TEST(PrintBuiltInTypeTest, FloatingPoints) {
433 EXPECT_EQ("1.5", Print(1.5f)); // float
434 EXPECT_EQ("-2.5", Print(-2.5)); // double
435 }
436
437 // Since ::std::stringstream::operator<<(const void *) formats the pointer
438 // output differently with different compilers, we have to create the expected
439 // output first and use it as our expectation.
PrintPointer(const void * p)440 static std::string PrintPointer(const void* p) {
441 ::std::stringstream expected_result_stream;
442 expected_result_stream << p;
443 return expected_result_stream.str();
444 }
445
446 // Tests printing C strings.
447
448 // const char*.
TEST(PrintCStringTest,Const)449 TEST(PrintCStringTest, Const) {
450 const char* p = "World";
451 EXPECT_EQ(PrintPointer(p) + " pointing to \"World\"", Print(p));
452 }
453
454 // char*.
TEST(PrintCStringTest,NonConst)455 TEST(PrintCStringTest, NonConst) {
456 char p[] = "Hi";
457 EXPECT_EQ(PrintPointer(p) + " pointing to \"Hi\"",
458 Print(static_cast<char*>(p)));
459 }
460
461 // NULL C string.
TEST(PrintCStringTest,Null)462 TEST(PrintCStringTest, Null) {
463 const char* p = NULL;
464 EXPECT_EQ("NULL", Print(p));
465 }
466
467 // Tests that C strings are escaped properly.
TEST(PrintCStringTest,EscapesProperly)468 TEST(PrintCStringTest, EscapesProperly) {
469 const char* p = "'\"?\\\a\b\f\n\r\t\v\x7F\xFF a";
470 EXPECT_EQ(PrintPointer(p) + " pointing to \"'\\\"?\\\\\\a\\b\\f"
471 "\\n\\r\\t\\v\\x7F\\xFF a\"",
472 Print(p));
473 }
474
475 // MSVC compiler can be configured to define whar_t as a typedef
476 // of unsigned short. Defining an overload for const wchar_t* in that case
477 // would cause pointers to unsigned shorts be printed as wide strings,
478 // possibly accessing more memory than intended and causing invalid
479 // memory accesses. MSVC defines _NATIVE_WCHAR_T_DEFINED symbol when
480 // wchar_t is implemented as a native type.
481 #if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
482
483 // const wchar_t*.
TEST(PrintWideCStringTest,Const)484 TEST(PrintWideCStringTest, Const) {
485 const wchar_t* p = L"World";
486 EXPECT_EQ(PrintPointer(p) + " pointing to L\"World\"", Print(p));
487 }
488
489 // wchar_t*.
TEST(PrintWideCStringTest,NonConst)490 TEST(PrintWideCStringTest, NonConst) {
491 wchar_t p[] = L"Hi";
492 EXPECT_EQ(PrintPointer(p) + " pointing to L\"Hi\"",
493 Print(static_cast<wchar_t*>(p)));
494 }
495
496 // NULL wide C string.
TEST(PrintWideCStringTest,Null)497 TEST(PrintWideCStringTest, Null) {
498 const wchar_t* p = NULL;
499 EXPECT_EQ("NULL", Print(p));
500 }
501
502 // Tests that wide C strings are escaped properly.
TEST(PrintWideCStringTest,EscapesProperly)503 TEST(PrintWideCStringTest, EscapesProperly) {
504 const wchar_t s[] = {'\'', '"', '?', '\\', '\a', '\b', '\f', '\n', '\r',
505 '\t', '\v', 0xD3, 0x576, 0x8D3, 0xC74D, ' ', 'a', '\0'};
506 EXPECT_EQ(PrintPointer(s) + " pointing to L\"'\\\"?\\\\\\a\\b\\f"
507 "\\n\\r\\t\\v\\xD3\\x576\\x8D3\\xC74D a\"",
508 Print(static_cast<const wchar_t*>(s)));
509 }
510 #endif // native wchar_t
511
512 // Tests printing pointers to other char types.
513
514 // signed char*.
TEST(PrintCharPointerTest,SignedChar)515 TEST(PrintCharPointerTest, SignedChar) {
516 signed char* p = reinterpret_cast<signed char*>(0x1234);
517 EXPECT_EQ(PrintPointer(p), Print(p));
518 p = NULL;
519 EXPECT_EQ("NULL", Print(p));
520 }
521
522 // const signed char*.
TEST(PrintCharPointerTest,ConstSignedChar)523 TEST(PrintCharPointerTest, ConstSignedChar) {
524 signed char* p = reinterpret_cast<signed char*>(0x1234);
525 EXPECT_EQ(PrintPointer(p), Print(p));
526 p = NULL;
527 EXPECT_EQ("NULL", Print(p));
528 }
529
530 // unsigned char*.
TEST(PrintCharPointerTest,UnsignedChar)531 TEST(PrintCharPointerTest, UnsignedChar) {
532 unsigned char* p = reinterpret_cast<unsigned char*>(0x1234);
533 EXPECT_EQ(PrintPointer(p), Print(p));
534 p = NULL;
535 EXPECT_EQ("NULL", Print(p));
536 }
537
538 // const unsigned char*.
TEST(PrintCharPointerTest,ConstUnsignedChar)539 TEST(PrintCharPointerTest, ConstUnsignedChar) {
540 const unsigned char* p = reinterpret_cast<const unsigned char*>(0x1234);
541 EXPECT_EQ(PrintPointer(p), Print(p));
542 p = NULL;
543 EXPECT_EQ("NULL", Print(p));
544 }
545
546 // Tests printing pointers to simple, built-in types.
547
548 // bool*.
TEST(PrintPointerToBuiltInTypeTest,Bool)549 TEST(PrintPointerToBuiltInTypeTest, Bool) {
550 bool* p = reinterpret_cast<bool*>(0xABCD);
551 EXPECT_EQ(PrintPointer(p), Print(p));
552 p = NULL;
553 EXPECT_EQ("NULL", Print(p));
554 }
555
556 // void*.
TEST(PrintPointerToBuiltInTypeTest,Void)557 TEST(PrintPointerToBuiltInTypeTest, Void) {
558 void* p = reinterpret_cast<void*>(0xABCD);
559 EXPECT_EQ(PrintPointer(p), Print(p));
560 p = NULL;
561 EXPECT_EQ("NULL", Print(p));
562 }
563
564 // const void*.
TEST(PrintPointerToBuiltInTypeTest,ConstVoid)565 TEST(PrintPointerToBuiltInTypeTest, ConstVoid) {
566 const void* p = reinterpret_cast<const void*>(0xABCD);
567 EXPECT_EQ(PrintPointer(p), Print(p));
568 p = NULL;
569 EXPECT_EQ("NULL", Print(p));
570 }
571
572 // Tests printing pointers to pointers.
TEST(PrintPointerToPointerTest,IntPointerPointer)573 TEST(PrintPointerToPointerTest, IntPointerPointer) {
574 int** p = reinterpret_cast<int**>(0xABCD);
575 EXPECT_EQ(PrintPointer(p), Print(p));
576 p = NULL;
577 EXPECT_EQ("NULL", Print(p));
578 }
579
580 // Tests printing (non-member) function pointers.
581
MyFunction(int)582 void MyFunction(int /* n */) {}
583
TEST(PrintPointerTest,NonMemberFunctionPointer)584 TEST(PrintPointerTest, NonMemberFunctionPointer) {
585 // We cannot directly cast &MyFunction to const void* because the
586 // standard disallows casting between pointers to functions and
587 // pointers to objects, and some compilers (e.g. GCC 3.4) enforce
588 // this limitation.
589 EXPECT_EQ(
590 PrintPointer(reinterpret_cast<const void*>(
591 reinterpret_cast<internal::BiggestInt>(&MyFunction))),
592 Print(&MyFunction));
593 int (*p)(bool) = NULL; // NOLINT
594 EXPECT_EQ("NULL", Print(p));
595 }
596
597 // An assertion predicate determining whether a one string is a prefix for
598 // another.
599 template <typename StringType>
HasPrefix(const StringType & str,const StringType & prefix)600 AssertionResult HasPrefix(const StringType& str, const StringType& prefix) {
601 if (str.find(prefix, 0) == 0)
602 return AssertionSuccess();
603
604 const bool is_wide_string = sizeof(prefix[0]) > 1;
605 const char* const begin_string_quote = is_wide_string ? "L\"" : "\"";
606 return AssertionFailure()
607 << begin_string_quote << prefix << "\" is not a prefix of "
608 << begin_string_quote << str << "\"\n";
609 }
610
611 // Tests printing member variable pointers. Although they are called
612 // pointers, they don't point to a location in the address space.
613 // Their representation is implementation-defined. Thus they will be
614 // printed as raw bytes.
615
616 struct Foo {
617 public:
~Footesting::gtest_printers_test::Foo618 virtual ~Foo() {}
MyMethodtesting::gtest_printers_test::Foo619 int MyMethod(char x) { return x + 1; }
MyVirtualMethodtesting::gtest_printers_test::Foo620 virtual char MyVirtualMethod(int /* n */) { return 'a'; }
621
622 int value;
623 };
624
TEST(PrintPointerTest,MemberVariablePointer)625 TEST(PrintPointerTest, MemberVariablePointer) {
626 EXPECT_TRUE(HasPrefix(Print(&Foo::value),
627 Print(sizeof(&Foo::value)) + "-byte object "));
628 int (Foo::*p) = NULL; // NOLINT
629 EXPECT_TRUE(HasPrefix(Print(p),
630 Print(sizeof(p)) + "-byte object "));
631 }
632
633 // Tests printing member function pointers. Although they are called
634 // pointers, they don't point to a location in the address space.
635 // Their representation is implementation-defined. Thus they will be
636 // printed as raw bytes.
TEST(PrintPointerTest,MemberFunctionPointer)637 TEST(PrintPointerTest, MemberFunctionPointer) {
638 EXPECT_TRUE(HasPrefix(Print(&Foo::MyMethod),
639 Print(sizeof(&Foo::MyMethod)) + "-byte object "));
640 EXPECT_TRUE(
641 HasPrefix(Print(&Foo::MyVirtualMethod),
642 Print(sizeof((&Foo::MyVirtualMethod))) + "-byte object "));
643 int (Foo::*p)(char) = NULL; // NOLINT
644 EXPECT_TRUE(HasPrefix(Print(p),
645 Print(sizeof(p)) + "-byte object "));
646 }
647
648 // Tests printing C arrays.
649
650 // The difference between this and Print() is that it ensures that the
651 // argument is a reference to an array.
652 template <typename T, size_t N>
PrintArrayHelper(T (& a)[N])653 std::string PrintArrayHelper(T (&a)[N]) {
654 return Print(a);
655 }
656
657 // One-dimensional array.
TEST(PrintArrayTest,OneDimensionalArray)658 TEST(PrintArrayTest, OneDimensionalArray) {
659 int a[5] = { 1, 2, 3, 4, 5 };
660 EXPECT_EQ("{ 1, 2, 3, 4, 5 }", PrintArrayHelper(a));
661 }
662
663 // Two-dimensional array.
TEST(PrintArrayTest,TwoDimensionalArray)664 TEST(PrintArrayTest, TwoDimensionalArray) {
665 int a[2][5] = {
666 { 1, 2, 3, 4, 5 },
667 { 6, 7, 8, 9, 0 }
668 };
669 EXPECT_EQ("{ { 1, 2, 3, 4, 5 }, { 6, 7, 8, 9, 0 } }", PrintArrayHelper(a));
670 }
671
672 // Array of const elements.
TEST(PrintArrayTest,ConstArray)673 TEST(PrintArrayTest, ConstArray) {
674 const bool a[1] = { false };
675 EXPECT_EQ("{ false }", PrintArrayHelper(a));
676 }
677
678 // char array without terminating NUL.
TEST(PrintArrayTest,CharArrayWithNoTerminatingNul)679 TEST(PrintArrayTest, CharArrayWithNoTerminatingNul) {
680 // Array a contains '\0' in the middle and doesn't end with '\0'.
681 char a[] = { 'H', '\0', 'i' };
682 EXPECT_EQ("\"H\\0i\" (no terminating NUL)", PrintArrayHelper(a));
683 }
684
685 // const char array with terminating NUL.
TEST(PrintArrayTest,ConstCharArrayWithTerminatingNul)686 TEST(PrintArrayTest, ConstCharArrayWithTerminatingNul) {
687 const char a[] = "\0Hi";
688 EXPECT_EQ("\"\\0Hi\"", PrintArrayHelper(a));
689 }
690
691 // const wchar_t array without terminating NUL.
TEST(PrintArrayTest,WCharArrayWithNoTerminatingNul)692 TEST(PrintArrayTest, WCharArrayWithNoTerminatingNul) {
693 // Array a contains '\0' in the middle and doesn't end with '\0'.
694 const wchar_t a[] = { L'H', L'\0', L'i' };
695 EXPECT_EQ("L\"H\\0i\" (no terminating NUL)", PrintArrayHelper(a));
696 }
697
698 // wchar_t array with terminating NUL.
TEST(PrintArrayTest,WConstCharArrayWithTerminatingNul)699 TEST(PrintArrayTest, WConstCharArrayWithTerminatingNul) {
700 const wchar_t a[] = L"\0Hi";
701 EXPECT_EQ("L\"\\0Hi\"", PrintArrayHelper(a));
702 }
703
704 // Array of objects.
TEST(PrintArrayTest,ObjectArray)705 TEST(PrintArrayTest, ObjectArray) {
706 std::string a[3] = {"Hi", "Hello", "Ni hao"};
707 EXPECT_EQ("{ \"Hi\", \"Hello\", \"Ni hao\" }", PrintArrayHelper(a));
708 }
709
710 // Array with many elements.
TEST(PrintArrayTest,BigArray)711 TEST(PrintArrayTest, BigArray) {
712 int a[100] = { 1, 2, 3 };
713 EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, ..., 0, 0, 0, 0, 0, 0, 0, 0 }",
714 PrintArrayHelper(a));
715 }
716
717 // Tests printing ::string and ::std::string.
718
719 #if GTEST_HAS_GLOBAL_STRING
720 // ::string.
TEST(PrintStringTest,StringInGlobalNamespace)721 TEST(PrintStringTest, StringInGlobalNamespace) {
722 const char s[] = "'\"?\\\a\b\f\n\0\r\t\v\x7F\xFF a";
723 const ::string str(s, sizeof(s));
724 EXPECT_EQ("\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v\\x7F\\xFF a\\0\"",
725 Print(str));
726 }
727 #endif // GTEST_HAS_GLOBAL_STRING
728
729 // ::std::string.
TEST(PrintStringTest,StringInStdNamespace)730 TEST(PrintStringTest, StringInStdNamespace) {
731 const char s[] = "'\"?\\\a\b\f\n\0\r\t\v\x7F\xFF a";
732 const ::std::string str(s, sizeof(s));
733 EXPECT_EQ("\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v\\x7F\\xFF a\\0\"",
734 Print(str));
735 }
736
TEST(PrintStringTest,StringAmbiguousHex)737 TEST(PrintStringTest, StringAmbiguousHex) {
738 // "\x6BANANA" is ambiguous, it can be interpreted as starting with either of:
739 // '\x6', '\x6B', or '\x6BA'.
740
741 // a hex escaping sequence following by a decimal digit
742 EXPECT_EQ("\"0\\x12\" \"3\"", Print(::std::string("0\x12" "3")));
743 // a hex escaping sequence following by a hex digit (lower-case)
744 EXPECT_EQ("\"mm\\x6\" \"bananas\"", Print(::std::string("mm\x6" "bananas")));
745 // a hex escaping sequence following by a hex digit (upper-case)
746 EXPECT_EQ("\"NOM\\x6\" \"BANANA\"", Print(::std::string("NOM\x6" "BANANA")));
747 // a hex escaping sequence following by a non-xdigit
748 EXPECT_EQ("\"!\\x5-!\"", Print(::std::string("!\x5-!")));
749 }
750
751 // Tests printing ::wstring and ::std::wstring.
752
753 #if GTEST_HAS_GLOBAL_WSTRING
754 // ::wstring.
TEST(PrintWideStringTest,StringInGlobalNamespace)755 TEST(PrintWideStringTest, StringInGlobalNamespace) {
756 const wchar_t s[] = L"'\"?\\\a\b\f\n\0\r\t\v\xD3\x576\x8D3\xC74D a";
757 const ::wstring str(s, sizeof(s)/sizeof(wchar_t));
758 EXPECT_EQ("L\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v"
759 "\\xD3\\x576\\x8D3\\xC74D a\\0\"",
760 Print(str));
761 }
762 #endif // GTEST_HAS_GLOBAL_WSTRING
763
764 #if GTEST_HAS_STD_WSTRING
765 // ::std::wstring.
TEST(PrintWideStringTest,StringInStdNamespace)766 TEST(PrintWideStringTest, StringInStdNamespace) {
767 const wchar_t s[] = L"'\"?\\\a\b\f\n\0\r\t\v\xD3\x576\x8D3\xC74D a";
768 const ::std::wstring str(s, sizeof(s)/sizeof(wchar_t));
769 EXPECT_EQ("L\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v"
770 "\\xD3\\x576\\x8D3\\xC74D a\\0\"",
771 Print(str));
772 }
773
TEST(PrintWideStringTest,StringAmbiguousHex)774 TEST(PrintWideStringTest, StringAmbiguousHex) {
775 // same for wide strings.
776 EXPECT_EQ("L\"0\\x12\" L\"3\"", Print(::std::wstring(L"0\x12" L"3")));
777 EXPECT_EQ("L\"mm\\x6\" L\"bananas\"",
778 Print(::std::wstring(L"mm\x6" L"bananas")));
779 EXPECT_EQ("L\"NOM\\x6\" L\"BANANA\"",
780 Print(::std::wstring(L"NOM\x6" L"BANANA")));
781 EXPECT_EQ("L\"!\\x5-!\"", Print(::std::wstring(L"!\x5-!")));
782 }
783 #endif // GTEST_HAS_STD_WSTRING
784
785 // Tests printing types that support generic streaming (i.e. streaming
786 // to std::basic_ostream<Char, CharTraits> for any valid Char and
787 // CharTraits types).
788
789 // Tests printing a non-template type that supports generic streaming.
790
791 class AllowsGenericStreaming {};
792
793 template <typename Char, typename CharTraits>
operator <<(std::basic_ostream<Char,CharTraits> & os,const AllowsGenericStreaming &)794 std::basic_ostream<Char, CharTraits>& operator<<(
795 std::basic_ostream<Char, CharTraits>& os,
796 const AllowsGenericStreaming& /* a */) {
797 return os << "AllowsGenericStreaming";
798 }
799
TEST(PrintTypeWithGenericStreamingTest,NonTemplateType)800 TEST(PrintTypeWithGenericStreamingTest, NonTemplateType) {
801 AllowsGenericStreaming a;
802 EXPECT_EQ("AllowsGenericStreaming", Print(a));
803 }
804
805 // Tests printing a template type that supports generic streaming.
806
807 template <typename T>
808 class AllowsGenericStreamingTemplate {};
809
810 template <typename Char, typename CharTraits, typename T>
operator <<(std::basic_ostream<Char,CharTraits> & os,const AllowsGenericStreamingTemplate<T> &)811 std::basic_ostream<Char, CharTraits>& operator<<(
812 std::basic_ostream<Char, CharTraits>& os,
813 const AllowsGenericStreamingTemplate<T>& /* a */) {
814 return os << "AllowsGenericStreamingTemplate";
815 }
816
TEST(PrintTypeWithGenericStreamingTest,TemplateType)817 TEST(PrintTypeWithGenericStreamingTest, TemplateType) {
818 AllowsGenericStreamingTemplate<int> a;
819 EXPECT_EQ("AllowsGenericStreamingTemplate", Print(a));
820 }
821
822 // Tests printing a type that supports generic streaming and can be
823 // implicitly converted to another printable type.
824
825 template <typename T>
826 class AllowsGenericStreamingAndImplicitConversionTemplate {
827 public:
operator bool() const828 operator bool() const { return false; }
829 };
830
831 template <typename Char, typename CharTraits, typename T>
operator <<(std::basic_ostream<Char,CharTraits> & os,const AllowsGenericStreamingAndImplicitConversionTemplate<T> &)832 std::basic_ostream<Char, CharTraits>& operator<<(
833 std::basic_ostream<Char, CharTraits>& os,
834 const AllowsGenericStreamingAndImplicitConversionTemplate<T>& /* a */) {
835 return os << "AllowsGenericStreamingAndImplicitConversionTemplate";
836 }
837
TEST(PrintTypeWithGenericStreamingTest,TypeImplicitlyConvertible)838 TEST(PrintTypeWithGenericStreamingTest, TypeImplicitlyConvertible) {
839 AllowsGenericStreamingAndImplicitConversionTemplate<int> a;
840 EXPECT_EQ("AllowsGenericStreamingAndImplicitConversionTemplate", Print(a));
841 }
842
843 #if GTEST_HAS_STRING_PIECE_
844
845 // Tests printing StringPiece.
846
TEST(PrintStringPieceTest,SimpleStringPiece)847 TEST(PrintStringPieceTest, SimpleStringPiece) {
848 const StringPiece sp = "Hello";
849 EXPECT_EQ("\"Hello\"", Print(sp));
850 }
851
TEST(PrintStringPieceTest,UnprintableCharacters)852 TEST(PrintStringPieceTest, UnprintableCharacters) {
853 const char str[] = "NUL (\0) and \r\t";
854 const StringPiece sp(str, sizeof(str) - 1);
855 EXPECT_EQ("\"NUL (\\0) and \\r\\t\"", Print(sp));
856 }
857
858 #endif // GTEST_HAS_STRING_PIECE_
859
860 // Tests printing STL containers.
861
TEST(PrintStlContainerTest,EmptyDeque)862 TEST(PrintStlContainerTest, EmptyDeque) {
863 deque<char> empty;
864 EXPECT_EQ("{}", Print(empty));
865 }
866
TEST(PrintStlContainerTest,NonEmptyDeque)867 TEST(PrintStlContainerTest, NonEmptyDeque) {
868 deque<int> non_empty;
869 non_empty.push_back(1);
870 non_empty.push_back(3);
871 EXPECT_EQ("{ 1, 3 }", Print(non_empty));
872 }
873
874 #if GTEST_HAS_HASH_MAP_
875
TEST(PrintStlContainerTest,OneElementHashMap)876 TEST(PrintStlContainerTest, OneElementHashMap) {
877 hash_map<int, char> map1;
878 map1[1] = 'a';
879 EXPECT_EQ("{ (1, 'a' (97, 0x61)) }", Print(map1));
880 }
881
TEST(PrintStlContainerTest,HashMultiMap)882 TEST(PrintStlContainerTest, HashMultiMap) {
883 hash_multimap<int, bool> map1;
884 map1.insert(make_pair(5, true));
885 map1.insert(make_pair(5, false));
886
887 // Elements of hash_multimap can be printed in any order.
888 const std::string result = Print(map1);
889 EXPECT_TRUE(result == "{ (5, true), (5, false) }" ||
890 result == "{ (5, false), (5, true) }")
891 << " where Print(map1) returns \"" << result << "\".";
892 }
893
894 #endif // GTEST_HAS_HASH_MAP_
895
896 #if GTEST_HAS_HASH_SET_
897
TEST(PrintStlContainerTest,HashSet)898 TEST(PrintStlContainerTest, HashSet) {
899 hash_set<int> set1;
900 set1.insert(1);
901 EXPECT_EQ("{ 1 }", Print(set1));
902 }
903
TEST(PrintStlContainerTest,HashMultiSet)904 TEST(PrintStlContainerTest, HashMultiSet) {
905 const int kSize = 5;
906 int a[kSize] = { 1, 1, 2, 5, 1 };
907 hash_multiset<int> set1(a, a + kSize);
908
909 // Elements of hash_multiset can be printed in any order.
910 const std::string result = Print(set1);
911 const std::string expected_pattern = "{ d, d, d, d, d }"; // d means a digit.
912
913 // Verifies the result matches the expected pattern; also extracts
914 // the numbers in the result.
915 ASSERT_EQ(expected_pattern.length(), result.length());
916 std::vector<int> numbers;
917 for (size_t i = 0; i != result.length(); i++) {
918 if (expected_pattern[i] == 'd') {
919 ASSERT_NE(isdigit(static_cast<unsigned char>(result[i])), 0);
920 numbers.push_back(result[i] - '0');
921 } else {
922 EXPECT_EQ(expected_pattern[i], result[i]) << " where result is "
923 << result;
924 }
925 }
926
927 // Makes sure the result contains the right numbers.
928 std::sort(numbers.begin(), numbers.end());
929 std::sort(a, a + kSize);
930 EXPECT_TRUE(std::equal(a, a + kSize, numbers.begin()));
931 }
932
933 #endif // GTEST_HAS_HASH_SET_
934
TEST(PrintStlContainerTest,List)935 TEST(PrintStlContainerTest, List) {
936 const std::string a[] = {"hello", "world"};
937 const list<std::string> strings(a, a + 2);
938 EXPECT_EQ("{ \"hello\", \"world\" }", Print(strings));
939 }
940
TEST(PrintStlContainerTest,Map)941 TEST(PrintStlContainerTest, Map) {
942 map<int, bool> map1;
943 map1[1] = true;
944 map1[5] = false;
945 map1[3] = true;
946 EXPECT_EQ("{ (1, true), (3, true), (5, false) }", Print(map1));
947 }
948
TEST(PrintStlContainerTest,MultiMap)949 TEST(PrintStlContainerTest, MultiMap) {
950 multimap<bool, int> map1;
951 // The make_pair template function would deduce the type as
952 // pair<bool, int> here, and since the key part in a multimap has to
953 // be constant, without a templated ctor in the pair class (as in
954 // libCstd on Solaris), make_pair call would fail to compile as no
955 // implicit conversion is found. Thus explicit typename is used
956 // here instead.
957 map1.insert(pair<const bool, int>(true, 0));
958 map1.insert(pair<const bool, int>(true, 1));
959 map1.insert(pair<const bool, int>(false, 2));
960 EXPECT_EQ("{ (false, 2), (true, 0), (true, 1) }", Print(map1));
961 }
962
TEST(PrintStlContainerTest,Set)963 TEST(PrintStlContainerTest, Set) {
964 const unsigned int a[] = { 3, 0, 5 };
965 set<unsigned int> set1(a, a + 3);
966 EXPECT_EQ("{ 0, 3, 5 }", Print(set1));
967 }
968
TEST(PrintStlContainerTest,MultiSet)969 TEST(PrintStlContainerTest, MultiSet) {
970 const int a[] = { 1, 1, 2, 5, 1 };
971 multiset<int> set1(a, a + 5);
972 EXPECT_EQ("{ 1, 1, 1, 2, 5 }", Print(set1));
973 }
974
975 #if GTEST_HAS_STD_FORWARD_LIST_
976 // <slist> is available on Linux in the google3 mode, but not on
977 // Windows or Mac OS X.
978
TEST(PrintStlContainerTest,SinglyLinkedList)979 TEST(PrintStlContainerTest, SinglyLinkedList) {
980 int a[] = { 9, 2, 8 };
981 const std::forward_list<int> ints(a, a + 3);
982 EXPECT_EQ("{ 9, 2, 8 }", Print(ints));
983 }
984 #endif // GTEST_HAS_STD_FORWARD_LIST_
985
TEST(PrintStlContainerTest,Pair)986 TEST(PrintStlContainerTest, Pair) {
987 pair<const bool, int> p(true, 5);
988 EXPECT_EQ("(true, 5)", Print(p));
989 }
990
TEST(PrintStlContainerTest,Vector)991 TEST(PrintStlContainerTest, Vector) {
992 vector<int> v;
993 v.push_back(1);
994 v.push_back(2);
995 EXPECT_EQ("{ 1, 2 }", Print(v));
996 }
997
TEST(PrintStlContainerTest,LongSequence)998 TEST(PrintStlContainerTest, LongSequence) {
999 const int a[100] = { 1, 2, 3 };
1000 const vector<int> v(a, a + 100);
1001 EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "
1002 "0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ... }", Print(v));
1003 }
1004
TEST(PrintStlContainerTest,NestedContainer)1005 TEST(PrintStlContainerTest, NestedContainer) {
1006 const int a1[] = { 1, 2 };
1007 const int a2[] = { 3, 4, 5 };
1008 const list<int> l1(a1, a1 + 2);
1009 const list<int> l2(a2, a2 + 3);
1010
1011 vector<list<int> > v;
1012 v.push_back(l1);
1013 v.push_back(l2);
1014 EXPECT_EQ("{ { 1, 2 }, { 3, 4, 5 } }", Print(v));
1015 }
1016
TEST(PrintStlContainerTest,OneDimensionalNativeArray)1017 TEST(PrintStlContainerTest, OneDimensionalNativeArray) {
1018 const int a[3] = { 1, 2, 3 };
1019 NativeArray<int> b(a, 3, RelationToSourceReference());
1020 EXPECT_EQ("{ 1, 2, 3 }", Print(b));
1021 }
1022
TEST(PrintStlContainerTest,TwoDimensionalNativeArray)1023 TEST(PrintStlContainerTest, TwoDimensionalNativeArray) {
1024 const int a[2][3] = { { 1, 2, 3 }, { 4, 5, 6 } };
1025 NativeArray<int[3]> b(a, 2, RelationToSourceReference());
1026 EXPECT_EQ("{ { 1, 2, 3 }, { 4, 5, 6 } }", Print(b));
1027 }
1028
1029 // Tests that a class named iterator isn't treated as a container.
1030
1031 struct iterator {
1032 char x;
1033 };
1034
TEST(PrintStlContainerTest,Iterator)1035 TEST(PrintStlContainerTest, Iterator) {
1036 iterator it = {};
1037 EXPECT_EQ("1-byte object <00>", Print(it));
1038 }
1039
1040 // Tests that a class named const_iterator isn't treated as a container.
1041
1042 struct const_iterator {
1043 char x;
1044 };
1045
TEST(PrintStlContainerTest,ConstIterator)1046 TEST(PrintStlContainerTest, ConstIterator) {
1047 const_iterator it = {};
1048 EXPECT_EQ("1-byte object <00>", Print(it));
1049 }
1050
1051 #if GTEST_HAS_TR1_TUPLE
1052 // Tests printing ::std::tr1::tuples.
1053
1054 // Tuples of various arities.
TEST(PrintTr1TupleTest,VariousSizes)1055 TEST(PrintTr1TupleTest, VariousSizes) {
1056 ::std::tr1::tuple<> t0;
1057 EXPECT_EQ("()", Print(t0));
1058
1059 ::std::tr1::tuple<int> t1(5);
1060 EXPECT_EQ("(5)", Print(t1));
1061
1062 ::std::tr1::tuple<char, bool> t2('a', true);
1063 EXPECT_EQ("('a' (97, 0x61), true)", Print(t2));
1064
1065 ::std::tr1::tuple<bool, int, int> t3(false, 2, 3);
1066 EXPECT_EQ("(false, 2, 3)", Print(t3));
1067
1068 ::std::tr1::tuple<bool, int, int, int> t4(false, 2, 3, 4);
1069 EXPECT_EQ("(false, 2, 3, 4)", Print(t4));
1070
1071 ::std::tr1::tuple<bool, int, int, int, bool> t5(false, 2, 3, 4, true);
1072 EXPECT_EQ("(false, 2, 3, 4, true)", Print(t5));
1073
1074 ::std::tr1::tuple<bool, int, int, int, bool, int> t6(false, 2, 3, 4, true, 6);
1075 EXPECT_EQ("(false, 2, 3, 4, true, 6)", Print(t6));
1076
1077 ::std::tr1::tuple<bool, int, int, int, bool, int, int> t7(
1078 false, 2, 3, 4, true, 6, 7);
1079 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7)", Print(t7));
1080
1081 ::std::tr1::tuple<bool, int, int, int, bool, int, int, bool> t8(
1082 false, 2, 3, 4, true, 6, 7, true);
1083 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true)", Print(t8));
1084
1085 ::std::tr1::tuple<bool, int, int, int, bool, int, int, bool, int> t9(
1086 false, 2, 3, 4, true, 6, 7, true, 9);
1087 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true, 9)", Print(t9));
1088
1089 const char* const str = "8";
1090 // VC++ 2010's implementation of tuple of C++0x is deficient, requiring
1091 // an explicit type cast of NULL to be used.
1092 ::std::tr1::tuple<bool, char, short, testing::internal::Int32, // NOLINT
1093 testing::internal::Int64, float, double, const char*, void*,
1094 std::string>
1095 t10(false, 'a', static_cast<short>(3), 4, 5, 1.5F, -2.5, str,
1096 ImplicitCast_<void*>(NULL), "10");
1097 EXPECT_EQ("(false, 'a' (97, 0x61), 3, 4, 5, 1.5, -2.5, " + PrintPointer(str) +
1098 " pointing to \"8\", NULL, \"10\")",
1099 Print(t10));
1100 }
1101
1102 // Nested tuples.
TEST(PrintTr1TupleTest,NestedTuple)1103 TEST(PrintTr1TupleTest, NestedTuple) {
1104 ::std::tr1::tuple< ::std::tr1::tuple<int, bool>, char> nested(
1105 ::std::tr1::make_tuple(5, true), 'a');
1106 EXPECT_EQ("((5, true), 'a' (97, 0x61))", Print(nested));
1107 }
1108
1109 #endif // GTEST_HAS_TR1_TUPLE
1110
1111 #if GTEST_HAS_STD_TUPLE_
1112 // Tests printing ::std::tuples.
1113
1114 // Tuples of various arities.
TEST(PrintStdTupleTest,VariousSizes)1115 TEST(PrintStdTupleTest, VariousSizes) {
1116 ::std::tuple<> t0;
1117 EXPECT_EQ("()", Print(t0));
1118
1119 ::std::tuple<int> t1(5);
1120 EXPECT_EQ("(5)", Print(t1));
1121
1122 ::std::tuple<char, bool> t2('a', true);
1123 EXPECT_EQ("('a' (97, 0x61), true)", Print(t2));
1124
1125 ::std::tuple<bool, int, int> t3(false, 2, 3);
1126 EXPECT_EQ("(false, 2, 3)", Print(t3));
1127
1128 ::std::tuple<bool, int, int, int> t4(false, 2, 3, 4);
1129 EXPECT_EQ("(false, 2, 3, 4)", Print(t4));
1130
1131 ::std::tuple<bool, int, int, int, bool> t5(false, 2, 3, 4, true);
1132 EXPECT_EQ("(false, 2, 3, 4, true)", Print(t5));
1133
1134 ::std::tuple<bool, int, int, int, bool, int> t6(false, 2, 3, 4, true, 6);
1135 EXPECT_EQ("(false, 2, 3, 4, true, 6)", Print(t6));
1136
1137 ::std::tuple<bool, int, int, int, bool, int, int> t7(
1138 false, 2, 3, 4, true, 6, 7);
1139 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7)", Print(t7));
1140
1141 ::std::tuple<bool, int, int, int, bool, int, int, bool> t8(
1142 false, 2, 3, 4, true, 6, 7, true);
1143 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true)", Print(t8));
1144
1145 ::std::tuple<bool, int, int, int, bool, int, int, bool, int> t9(
1146 false, 2, 3, 4, true, 6, 7, true, 9);
1147 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true, 9)", Print(t9));
1148
1149 const char* const str = "8";
1150 // VC++ 2010's implementation of tuple of C++0x is deficient, requiring
1151 // an explicit type cast of NULL to be used.
1152 ::std::tuple<bool, char, short, testing::internal::Int32, // NOLINT
1153 testing::internal::Int64, float, double, const char*, void*,
1154 std::string>
1155 t10(false, 'a', static_cast<short>(3), 4, 5, 1.5F, -2.5, str,
1156 ImplicitCast_<void*>(NULL), "10");
1157 EXPECT_EQ("(false, 'a' (97, 0x61), 3, 4, 5, 1.5, -2.5, " + PrintPointer(str) +
1158 " pointing to \"8\", NULL, \"10\")",
1159 Print(t10));
1160 }
1161
1162 // Nested tuples.
TEST(PrintStdTupleTest,NestedTuple)1163 TEST(PrintStdTupleTest, NestedTuple) {
1164 ::std::tuple< ::std::tuple<int, bool>, char> nested(
1165 ::std::make_tuple(5, true), 'a');
1166 EXPECT_EQ("((5, true), 'a' (97, 0x61))", Print(nested));
1167 }
1168
1169 #endif // GTEST_LANG_CXX11
1170
1171 // Tests printing user-defined unprintable types.
1172
1173 // Unprintable types in the global namespace.
TEST(PrintUnprintableTypeTest,InGlobalNamespace)1174 TEST(PrintUnprintableTypeTest, InGlobalNamespace) {
1175 EXPECT_EQ("1-byte object <00>",
1176 Print(UnprintableTemplateInGlobal<char>()));
1177 }
1178
1179 // Unprintable types in a user namespace.
TEST(PrintUnprintableTypeTest,InUserNamespace)1180 TEST(PrintUnprintableTypeTest, InUserNamespace) {
1181 EXPECT_EQ("16-byte object <EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
1182 Print(::foo::UnprintableInFoo()));
1183 }
1184
1185 // Unprintable types are that too big to be printed completely.
1186
1187 struct Big {
Bigtesting::gtest_printers_test::Big1188 Big() { memset(array, 0, sizeof(array)); }
1189 char array[257];
1190 };
1191
TEST(PrintUnpritableTypeTest,BigObject)1192 TEST(PrintUnpritableTypeTest, BigObject) {
1193 EXPECT_EQ("257-byte object <00-00 00-00 00-00 00-00 00-00 00-00 "
1194 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1195 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1196 "00-00 00-00 00-00 00-00 00-00 00-00 ... 00-00 00-00 00-00 "
1197 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1198 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1199 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00>",
1200 Print(Big()));
1201 }
1202
1203 // Tests printing user-defined streamable types.
1204
1205 // Streamable types in the global namespace.
TEST(PrintStreamableTypeTest,InGlobalNamespace)1206 TEST(PrintStreamableTypeTest, InGlobalNamespace) {
1207 StreamableInGlobal x;
1208 EXPECT_EQ("StreamableInGlobal", Print(x));
1209 EXPECT_EQ("StreamableInGlobal*", Print(&x));
1210 }
1211
1212 // Printable template types in a user namespace.
TEST(PrintStreamableTypeTest,TemplateTypeInUserNamespace)1213 TEST(PrintStreamableTypeTest, TemplateTypeInUserNamespace) {
1214 EXPECT_EQ("StreamableTemplateInFoo: 0",
1215 Print(::foo::StreamableTemplateInFoo<int>()));
1216 }
1217
1218 // Tests printing a user-defined recursive container type that has a <<
1219 // operator.
TEST(PrintStreamableTypeTest,PathLikeInUserNamespace)1220 TEST(PrintStreamableTypeTest, PathLikeInUserNamespace) {
1221 ::foo::PathLike x;
1222 EXPECT_EQ("Streamable-PathLike", Print(x));
1223 const ::foo::PathLike cx;
1224 EXPECT_EQ("Streamable-PathLike", Print(cx));
1225 }
1226
1227 // Tests printing user-defined types that have a PrintTo() function.
TEST(PrintPrintableTypeTest,InUserNamespace)1228 TEST(PrintPrintableTypeTest, InUserNamespace) {
1229 EXPECT_EQ("PrintableViaPrintTo: 0",
1230 Print(::foo::PrintableViaPrintTo()));
1231 }
1232
1233 // Tests printing a pointer to a user-defined type that has a <<
1234 // operator for its pointer.
TEST(PrintPrintableTypeTest,PointerInUserNamespace)1235 TEST(PrintPrintableTypeTest, PointerInUserNamespace) {
1236 ::foo::PointerPrintable x;
1237 EXPECT_EQ("PointerPrintable*", Print(&x));
1238 }
1239
1240 // Tests printing user-defined class template that have a PrintTo() function.
TEST(PrintPrintableTypeTest,TemplateInUserNamespace)1241 TEST(PrintPrintableTypeTest, TemplateInUserNamespace) {
1242 EXPECT_EQ("PrintableViaPrintToTemplate: 5",
1243 Print(::foo::PrintableViaPrintToTemplate<int>(5)));
1244 }
1245
1246 // Tests that the universal printer prints both the address and the
1247 // value of a reference.
TEST(PrintReferenceTest,PrintsAddressAndValue)1248 TEST(PrintReferenceTest, PrintsAddressAndValue) {
1249 int n = 5;
1250 EXPECT_EQ("@" + PrintPointer(&n) + " 5", PrintByRef(n));
1251
1252 int a[2][3] = {
1253 { 0, 1, 2 },
1254 { 3, 4, 5 }
1255 };
1256 EXPECT_EQ("@" + PrintPointer(a) + " { { 0, 1, 2 }, { 3, 4, 5 } }",
1257 PrintByRef(a));
1258
1259 const ::foo::UnprintableInFoo x;
1260 EXPECT_EQ("@" + PrintPointer(&x) + " 16-byte object "
1261 "<EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
1262 PrintByRef(x));
1263 }
1264
1265 // Tests that the universal printer prints a function pointer passed by
1266 // reference.
TEST(PrintReferenceTest,HandlesFunctionPointer)1267 TEST(PrintReferenceTest, HandlesFunctionPointer) {
1268 void (*fp)(int n) = &MyFunction;
1269 const std::string fp_pointer_string =
1270 PrintPointer(reinterpret_cast<const void*>(&fp));
1271 // We cannot directly cast &MyFunction to const void* because the
1272 // standard disallows casting between pointers to functions and
1273 // pointers to objects, and some compilers (e.g. GCC 3.4) enforce
1274 // this limitation.
1275 const std::string fp_string = PrintPointer(reinterpret_cast<const void*>(
1276 reinterpret_cast<internal::BiggestInt>(fp)));
1277 EXPECT_EQ("@" + fp_pointer_string + " " + fp_string,
1278 PrintByRef(fp));
1279 }
1280
1281 // Tests that the universal printer prints a member function pointer
1282 // passed by reference.
TEST(PrintReferenceTest,HandlesMemberFunctionPointer)1283 TEST(PrintReferenceTest, HandlesMemberFunctionPointer) {
1284 int (Foo::*p)(char ch) = &Foo::MyMethod;
1285 EXPECT_TRUE(HasPrefix(
1286 PrintByRef(p),
1287 "@" + PrintPointer(reinterpret_cast<const void*>(&p)) + " " +
1288 Print(sizeof(p)) + "-byte object "));
1289
1290 char (Foo::*p2)(int n) = &Foo::MyVirtualMethod;
1291 EXPECT_TRUE(HasPrefix(
1292 PrintByRef(p2),
1293 "@" + PrintPointer(reinterpret_cast<const void*>(&p2)) + " " +
1294 Print(sizeof(p2)) + "-byte object "));
1295 }
1296
1297 // Tests that the universal printer prints a member variable pointer
1298 // passed by reference.
TEST(PrintReferenceTest,HandlesMemberVariablePointer)1299 TEST(PrintReferenceTest, HandlesMemberVariablePointer) {
1300 int (Foo::*p) = &Foo::value; // NOLINT
1301 EXPECT_TRUE(HasPrefix(
1302 PrintByRef(p),
1303 "@" + PrintPointer(&p) + " " + Print(sizeof(p)) + "-byte object "));
1304 }
1305
1306 // Tests that FormatForComparisonFailureMessage(), which is used to print
1307 // an operand in a comparison assertion (e.g. ASSERT_EQ) when the assertion
1308 // fails, formats the operand in the desired way.
1309
1310 // scalar
TEST(FormatForComparisonFailureMessageTest,WorksForScalar)1311 TEST(FormatForComparisonFailureMessageTest, WorksForScalar) {
1312 EXPECT_STREQ("123",
1313 FormatForComparisonFailureMessage(123, 124).c_str());
1314 }
1315
1316 // non-char pointer
TEST(FormatForComparisonFailureMessageTest,WorksForNonCharPointer)1317 TEST(FormatForComparisonFailureMessageTest, WorksForNonCharPointer) {
1318 int n = 0;
1319 EXPECT_EQ(PrintPointer(&n),
1320 FormatForComparisonFailureMessage(&n, &n).c_str());
1321 }
1322
1323 // non-char array
TEST(FormatForComparisonFailureMessageTest,FormatsNonCharArrayAsPointer)1324 TEST(FormatForComparisonFailureMessageTest, FormatsNonCharArrayAsPointer) {
1325 // In expression 'array == x', 'array' is compared by pointer.
1326 // Therefore we want to print an array operand as a pointer.
1327 int n[] = { 1, 2, 3 };
1328 EXPECT_EQ(PrintPointer(n),
1329 FormatForComparisonFailureMessage(n, n).c_str());
1330 }
1331
1332 // Tests formatting a char pointer when it's compared with another pointer.
1333 // In this case we want to print it as a raw pointer, as the comparision is by
1334 // pointer.
1335
1336 // char pointer vs pointer
TEST(FormatForComparisonFailureMessageTest,WorksForCharPointerVsPointer)1337 TEST(FormatForComparisonFailureMessageTest, WorksForCharPointerVsPointer) {
1338 // In expression 'p == x', where 'p' and 'x' are (const or not) char
1339 // pointers, the operands are compared by pointer. Therefore we
1340 // want to print 'p' as a pointer instead of a C string (we don't
1341 // even know if it's supposed to point to a valid C string).
1342
1343 // const char*
1344 const char* s = "hello";
1345 EXPECT_EQ(PrintPointer(s),
1346 FormatForComparisonFailureMessage(s, s).c_str());
1347
1348 // char*
1349 char ch = 'a';
1350 EXPECT_EQ(PrintPointer(&ch),
1351 FormatForComparisonFailureMessage(&ch, &ch).c_str());
1352 }
1353
1354 // wchar_t pointer vs pointer
TEST(FormatForComparisonFailureMessageTest,WorksForWCharPointerVsPointer)1355 TEST(FormatForComparisonFailureMessageTest, WorksForWCharPointerVsPointer) {
1356 // In expression 'p == x', where 'p' and 'x' are (const or not) char
1357 // pointers, the operands are compared by pointer. Therefore we
1358 // want to print 'p' as a pointer instead of a wide C string (we don't
1359 // even know if it's supposed to point to a valid wide C string).
1360
1361 // const wchar_t*
1362 const wchar_t* s = L"hello";
1363 EXPECT_EQ(PrintPointer(s),
1364 FormatForComparisonFailureMessage(s, s).c_str());
1365
1366 // wchar_t*
1367 wchar_t ch = L'a';
1368 EXPECT_EQ(PrintPointer(&ch),
1369 FormatForComparisonFailureMessage(&ch, &ch).c_str());
1370 }
1371
1372 // Tests formatting a char pointer when it's compared to a string object.
1373 // In this case we want to print the char pointer as a C string.
1374
1375 #if GTEST_HAS_GLOBAL_STRING
1376 // char pointer vs ::string
TEST(FormatForComparisonFailureMessageTest,WorksForCharPointerVsString)1377 TEST(FormatForComparisonFailureMessageTest, WorksForCharPointerVsString) {
1378 const char* s = "hello \"world";
1379 EXPECT_STREQ("\"hello \\\"world\"", // The string content should be escaped.
1380 FormatForComparisonFailureMessage(s, ::string()).c_str());
1381
1382 // char*
1383 char str[] = "hi\1";
1384 char* p = str;
1385 EXPECT_STREQ("\"hi\\x1\"", // The string content should be escaped.
1386 FormatForComparisonFailureMessage(p, ::string()).c_str());
1387 }
1388 #endif
1389
1390 // char pointer vs std::string
TEST(FormatForComparisonFailureMessageTest,WorksForCharPointerVsStdString)1391 TEST(FormatForComparisonFailureMessageTest, WorksForCharPointerVsStdString) {
1392 const char* s = "hello \"world";
1393 EXPECT_STREQ("\"hello \\\"world\"", // The string content should be escaped.
1394 FormatForComparisonFailureMessage(s, ::std::string()).c_str());
1395
1396 // char*
1397 char str[] = "hi\1";
1398 char* p = str;
1399 EXPECT_STREQ("\"hi\\x1\"", // The string content should be escaped.
1400 FormatForComparisonFailureMessage(p, ::std::string()).c_str());
1401 }
1402
1403 #if GTEST_HAS_GLOBAL_WSTRING
1404 // wchar_t pointer vs ::wstring
TEST(FormatForComparisonFailureMessageTest,WorksForWCharPointerVsWString)1405 TEST(FormatForComparisonFailureMessageTest, WorksForWCharPointerVsWString) {
1406 const wchar_t* s = L"hi \"world";
1407 EXPECT_STREQ("L\"hi \\\"world\"", // The string content should be escaped.
1408 FormatForComparisonFailureMessage(s, ::wstring()).c_str());
1409
1410 // wchar_t*
1411 wchar_t str[] = L"hi\1";
1412 wchar_t* p = str;
1413 EXPECT_STREQ("L\"hi\\x1\"", // The string content should be escaped.
1414 FormatForComparisonFailureMessage(p, ::wstring()).c_str());
1415 }
1416 #endif
1417
1418 #if GTEST_HAS_STD_WSTRING
1419 // wchar_t pointer vs std::wstring
TEST(FormatForComparisonFailureMessageTest,WorksForWCharPointerVsStdWString)1420 TEST(FormatForComparisonFailureMessageTest, WorksForWCharPointerVsStdWString) {
1421 const wchar_t* s = L"hi \"world";
1422 EXPECT_STREQ("L\"hi \\\"world\"", // The string content should be escaped.
1423 FormatForComparisonFailureMessage(s, ::std::wstring()).c_str());
1424
1425 // wchar_t*
1426 wchar_t str[] = L"hi\1";
1427 wchar_t* p = str;
1428 EXPECT_STREQ("L\"hi\\x1\"", // The string content should be escaped.
1429 FormatForComparisonFailureMessage(p, ::std::wstring()).c_str());
1430 }
1431 #endif
1432
1433 // Tests formatting a char array when it's compared with a pointer or array.
1434 // In this case we want to print the array as a row pointer, as the comparison
1435 // is by pointer.
1436
1437 // char array vs pointer
TEST(FormatForComparisonFailureMessageTest,WorksForCharArrayVsPointer)1438 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsPointer) {
1439 char str[] = "hi \"world\"";
1440 char* p = NULL;
1441 EXPECT_EQ(PrintPointer(str),
1442 FormatForComparisonFailureMessage(str, p).c_str());
1443 }
1444
1445 // char array vs char array
TEST(FormatForComparisonFailureMessageTest,WorksForCharArrayVsCharArray)1446 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsCharArray) {
1447 const char str[] = "hi \"world\"";
1448 EXPECT_EQ(PrintPointer(str),
1449 FormatForComparisonFailureMessage(str, str).c_str());
1450 }
1451
1452 // wchar_t array vs pointer
TEST(FormatForComparisonFailureMessageTest,WorksForWCharArrayVsPointer)1453 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsPointer) {
1454 wchar_t str[] = L"hi \"world\"";
1455 wchar_t* p = NULL;
1456 EXPECT_EQ(PrintPointer(str),
1457 FormatForComparisonFailureMessage(str, p).c_str());
1458 }
1459
1460 // wchar_t array vs wchar_t array
TEST(FormatForComparisonFailureMessageTest,WorksForWCharArrayVsWCharArray)1461 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsWCharArray) {
1462 const wchar_t str[] = L"hi \"world\"";
1463 EXPECT_EQ(PrintPointer(str),
1464 FormatForComparisonFailureMessage(str, str).c_str());
1465 }
1466
1467 // Tests formatting a char array when it's compared with a string object.
1468 // In this case we want to print the array as a C string.
1469
1470 #if GTEST_HAS_GLOBAL_STRING
1471 // char array vs string
TEST(FormatForComparisonFailureMessageTest,WorksForCharArrayVsString)1472 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsString) {
1473 const char str[] = "hi \"w\0rld\"";
1474 EXPECT_STREQ("\"hi \\\"w\"", // The content should be escaped.
1475 // Embedded NUL terminates the string.
1476 FormatForComparisonFailureMessage(str, ::string()).c_str());
1477 }
1478 #endif
1479
1480 // char array vs std::string
TEST(FormatForComparisonFailureMessageTest,WorksForCharArrayVsStdString)1481 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsStdString) {
1482 const char str[] = "hi \"world\"";
1483 EXPECT_STREQ("\"hi \\\"world\\\"\"", // The content should be escaped.
1484 FormatForComparisonFailureMessage(str, ::std::string()).c_str());
1485 }
1486
1487 #if GTEST_HAS_GLOBAL_WSTRING
1488 // wchar_t array vs wstring
TEST(FormatForComparisonFailureMessageTest,WorksForWCharArrayVsWString)1489 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsWString) {
1490 const wchar_t str[] = L"hi \"world\"";
1491 EXPECT_STREQ("L\"hi \\\"world\\\"\"", // The content should be escaped.
1492 FormatForComparisonFailureMessage(str, ::wstring()).c_str());
1493 }
1494 #endif
1495
1496 #if GTEST_HAS_STD_WSTRING
1497 // wchar_t array vs std::wstring
TEST(FormatForComparisonFailureMessageTest,WorksForWCharArrayVsStdWString)1498 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsStdWString) {
1499 const wchar_t str[] = L"hi \"w\0rld\"";
1500 EXPECT_STREQ(
1501 "L\"hi \\\"w\"", // The content should be escaped.
1502 // Embedded NUL terminates the string.
1503 FormatForComparisonFailureMessage(str, ::std::wstring()).c_str());
1504 }
1505 #endif
1506
1507 // Useful for testing PrintToString(). We cannot use EXPECT_EQ()
1508 // there as its implementation uses PrintToString(). The caller must
1509 // ensure that 'value' has no side effect.
1510 #define EXPECT_PRINT_TO_STRING_(value, expected_string) \
1511 EXPECT_TRUE(PrintToString(value) == (expected_string)) \
1512 << " where " #value " prints as " << (PrintToString(value))
1513
TEST(PrintToStringTest,WorksForScalar)1514 TEST(PrintToStringTest, WorksForScalar) {
1515 EXPECT_PRINT_TO_STRING_(123, "123");
1516 }
1517
TEST(PrintToStringTest,WorksForPointerToConstChar)1518 TEST(PrintToStringTest, WorksForPointerToConstChar) {
1519 const char* p = "hello";
1520 EXPECT_PRINT_TO_STRING_(p, "\"hello\"");
1521 }
1522
TEST(PrintToStringTest,WorksForPointerToNonConstChar)1523 TEST(PrintToStringTest, WorksForPointerToNonConstChar) {
1524 char s[] = "hello";
1525 char* p = s;
1526 EXPECT_PRINT_TO_STRING_(p, "\"hello\"");
1527 }
1528
TEST(PrintToStringTest,EscapesForPointerToConstChar)1529 TEST(PrintToStringTest, EscapesForPointerToConstChar) {
1530 const char* p = "hello\n";
1531 EXPECT_PRINT_TO_STRING_(p, "\"hello\\n\"");
1532 }
1533
TEST(PrintToStringTest,EscapesForPointerToNonConstChar)1534 TEST(PrintToStringTest, EscapesForPointerToNonConstChar) {
1535 char s[] = "hello\1";
1536 char* p = s;
1537 EXPECT_PRINT_TO_STRING_(p, "\"hello\\x1\"");
1538 }
1539
TEST(PrintToStringTest,WorksForArray)1540 TEST(PrintToStringTest, WorksForArray) {
1541 int n[3] = { 1, 2, 3 };
1542 EXPECT_PRINT_TO_STRING_(n, "{ 1, 2, 3 }");
1543 }
1544
TEST(PrintToStringTest,WorksForCharArray)1545 TEST(PrintToStringTest, WorksForCharArray) {
1546 char s[] = "hello";
1547 EXPECT_PRINT_TO_STRING_(s, "\"hello\"");
1548 }
1549
TEST(PrintToStringTest,WorksForCharArrayWithEmbeddedNul)1550 TEST(PrintToStringTest, WorksForCharArrayWithEmbeddedNul) {
1551 const char str_with_nul[] = "hello\0 world";
1552 EXPECT_PRINT_TO_STRING_(str_with_nul, "\"hello\\0 world\"");
1553
1554 char mutable_str_with_nul[] = "hello\0 world";
1555 EXPECT_PRINT_TO_STRING_(mutable_str_with_nul, "\"hello\\0 world\"");
1556 }
1557
1558 #undef EXPECT_PRINT_TO_STRING_
1559
TEST(UniversalTersePrintTest,WorksForNonReference)1560 TEST(UniversalTersePrintTest, WorksForNonReference) {
1561 ::std::stringstream ss;
1562 UniversalTersePrint(123, &ss);
1563 EXPECT_EQ("123", ss.str());
1564 }
1565
TEST(UniversalTersePrintTest,WorksForReference)1566 TEST(UniversalTersePrintTest, WorksForReference) {
1567 const int& n = 123;
1568 ::std::stringstream ss;
1569 UniversalTersePrint(n, &ss);
1570 EXPECT_EQ("123", ss.str());
1571 }
1572
TEST(UniversalTersePrintTest,WorksForCString)1573 TEST(UniversalTersePrintTest, WorksForCString) {
1574 const char* s1 = "abc";
1575 ::std::stringstream ss1;
1576 UniversalTersePrint(s1, &ss1);
1577 EXPECT_EQ("\"abc\"", ss1.str());
1578
1579 char* s2 = const_cast<char*>(s1);
1580 ::std::stringstream ss2;
1581 UniversalTersePrint(s2, &ss2);
1582 EXPECT_EQ("\"abc\"", ss2.str());
1583
1584 const char* s3 = NULL;
1585 ::std::stringstream ss3;
1586 UniversalTersePrint(s3, &ss3);
1587 EXPECT_EQ("NULL", ss3.str());
1588 }
1589
TEST(UniversalPrintTest,WorksForNonReference)1590 TEST(UniversalPrintTest, WorksForNonReference) {
1591 ::std::stringstream ss;
1592 UniversalPrint(123, &ss);
1593 EXPECT_EQ("123", ss.str());
1594 }
1595
TEST(UniversalPrintTest,WorksForReference)1596 TEST(UniversalPrintTest, WorksForReference) {
1597 const int& n = 123;
1598 ::std::stringstream ss;
1599 UniversalPrint(n, &ss);
1600 EXPECT_EQ("123", ss.str());
1601 }
1602
TEST(UniversalPrintTest,WorksForCString)1603 TEST(UniversalPrintTest, WorksForCString) {
1604 const char* s1 = "abc";
1605 ::std::stringstream ss1;
1606 UniversalPrint(s1, &ss1);
1607 EXPECT_EQ(PrintPointer(s1) + " pointing to \"abc\"", std::string(ss1.str()));
1608
1609 char* s2 = const_cast<char*>(s1);
1610 ::std::stringstream ss2;
1611 UniversalPrint(s2, &ss2);
1612 EXPECT_EQ(PrintPointer(s2) + " pointing to \"abc\"", std::string(ss2.str()));
1613
1614 const char* s3 = NULL;
1615 ::std::stringstream ss3;
1616 UniversalPrint(s3, &ss3);
1617 EXPECT_EQ("NULL", ss3.str());
1618 }
1619
TEST(UniversalPrintTest,WorksForCharArray)1620 TEST(UniversalPrintTest, WorksForCharArray) {
1621 const char str[] = "\"Line\0 1\"\nLine 2";
1622 ::std::stringstream ss1;
1623 UniversalPrint(str, &ss1);
1624 EXPECT_EQ("\"\\\"Line\\0 1\\\"\\nLine 2\"", ss1.str());
1625
1626 const char mutable_str[] = "\"Line\0 1\"\nLine 2";
1627 ::std::stringstream ss2;
1628 UniversalPrint(mutable_str, &ss2);
1629 EXPECT_EQ("\"\\\"Line\\0 1\\\"\\nLine 2\"", ss2.str());
1630 }
1631
1632 #if GTEST_HAS_TR1_TUPLE
1633
TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1,PrintsEmptyTuple)1634 TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1, PrintsEmptyTuple) {
1635 Strings result = UniversalTersePrintTupleFieldsToStrings(
1636 ::std::tr1::make_tuple());
1637 EXPECT_EQ(0u, result.size());
1638 }
1639
TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1,PrintsOneTuple)1640 TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1, PrintsOneTuple) {
1641 Strings result = UniversalTersePrintTupleFieldsToStrings(
1642 ::std::tr1::make_tuple(1));
1643 ASSERT_EQ(1u, result.size());
1644 EXPECT_EQ("1", result[0]);
1645 }
1646
TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1,PrintsTwoTuple)1647 TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1, PrintsTwoTuple) {
1648 Strings result = UniversalTersePrintTupleFieldsToStrings(
1649 ::std::tr1::make_tuple(1, 'a'));
1650 ASSERT_EQ(2u, result.size());
1651 EXPECT_EQ("1", result[0]);
1652 EXPECT_EQ("'a' (97, 0x61)", result[1]);
1653 }
1654
TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1,PrintsTersely)1655 TEST(UniversalTersePrintTupleFieldsToStringsTestWithTr1, PrintsTersely) {
1656 const int n = 1;
1657 Strings result = UniversalTersePrintTupleFieldsToStrings(
1658 ::std::tr1::tuple<const int&, const char*>(n, "a"));
1659 ASSERT_EQ(2u, result.size());
1660 EXPECT_EQ("1", result[0]);
1661 EXPECT_EQ("\"a\"", result[1]);
1662 }
1663
1664 #endif // GTEST_HAS_TR1_TUPLE
1665
1666 #if GTEST_HAS_STD_TUPLE_
1667
TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd,PrintsEmptyTuple)1668 TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsEmptyTuple) {
1669 Strings result = UniversalTersePrintTupleFieldsToStrings(::std::make_tuple());
1670 EXPECT_EQ(0u, result.size());
1671 }
1672
TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd,PrintsOneTuple)1673 TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsOneTuple) {
1674 Strings result = UniversalTersePrintTupleFieldsToStrings(
1675 ::std::make_tuple(1));
1676 ASSERT_EQ(1u, result.size());
1677 EXPECT_EQ("1", result[0]);
1678 }
1679
TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd,PrintsTwoTuple)1680 TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsTwoTuple) {
1681 Strings result = UniversalTersePrintTupleFieldsToStrings(
1682 ::std::make_tuple(1, 'a'));
1683 ASSERT_EQ(2u, result.size());
1684 EXPECT_EQ("1", result[0]);
1685 EXPECT_EQ("'a' (97, 0x61)", result[1]);
1686 }
1687
TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd,PrintsTersely)1688 TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsTersely) {
1689 const int n = 1;
1690 Strings result = UniversalTersePrintTupleFieldsToStrings(
1691 ::std::tuple<const int&, const char*>(n, "a"));
1692 ASSERT_EQ(2u, result.size());
1693 EXPECT_EQ("1", result[0]);
1694 EXPECT_EQ("\"a\"", result[1]);
1695 }
1696
1697 #endif // GTEST_HAS_STD_TUPLE_
1698
1699 } // namespace gtest_printers_test
1700 } // namespace testing
1701