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30 // Author: wan@google.com (Zhanyong Wan)
32 // Google Test - The Google C++ Testing Framework
34 // This file tests the universal value printer.
36 #include "gtest/gtest-printers.h"
51 #include "gtest/gtest.h"
53 // hash_map and hash_set are available under Visual C++.
55 # define GTEST_HAS_HASH_MAP_ 1 // Indicates that hash_map is available.
56 # include <hash_map> // NOLINT
57 # define GTEST_HAS_HASH_SET_ 1 // Indicates that hash_set is available.
58 # include <hash_set> // NOLINT
59 #endif // GTEST_OS_WINDOWS
61 // Some user-defined types for testing the universal value printer.
63 // An anonymous enum type.
69 // An enum without a user-defined printer.
70 enum EnumWithoutPrinter {
75 // An enum with a << operator.
76 enum EnumWithStreaming {
80 std::ostream& operator<<(std::ostream& os, EnumWithStreaming e) {
81 return os << (e == kEWS1 ? "kEWS1" : "invalid");
84 // An enum with a PrintTo() function.
85 enum EnumWithPrintTo {
89 void PrintTo(EnumWithPrintTo e, std::ostream* os) {
90 *os << (e == kEWPT1 ? "kEWPT1" : "invalid");
93 // A class implicitly convertible to BiggestInt.
94 class BiggestIntConvertible {
96 operator ::testing::internal::BiggestInt() const { return 42; }
99 // A user-defined unprintable class template in the global namespace.
100 template <typename T>
101 class UnprintableTemplateInGlobal {
103 UnprintableTemplateInGlobal() : value_() {}
108 // A user-defined streamable type in the global namespace.
109 class StreamableInGlobal {
111 virtual ~StreamableInGlobal() {}
114 inline void operator<<(::std::ostream& os, const StreamableInGlobal& /* x */) {
115 os << "StreamableInGlobal";
118 void operator<<(::std::ostream& os, const StreamableInGlobal* /* x */) {
119 os << "StreamableInGlobal*";
124 // A user-defined unprintable type in a user namespace.
125 class UnprintableInFoo {
127 UnprintableInFoo() : z_(0) { memcpy(xy_, "\xEF\x12\x0\x0\x34\xAB\x0\x0", 8); }
133 // A user-defined printable type in a user-chosen namespace.
134 struct PrintableViaPrintTo {
135 PrintableViaPrintTo() : value() {}
139 void PrintTo(const PrintableViaPrintTo& x, ::std::ostream* os) {
140 *os << "PrintableViaPrintTo: " << x.value;
143 // A type with a user-defined << for printing its pointer.
144 struct PointerPrintable {
147 ::std::ostream& operator<<(::std::ostream& os,
148 const PointerPrintable* /* x */) {
149 return os << "PointerPrintable*";
152 // A user-defined printable class template in a user-chosen namespace.
153 template <typename T>
154 class PrintableViaPrintToTemplate {
156 explicit PrintableViaPrintToTemplate(const T& a_value) : value_(a_value) {}
158 const T& value() const { return value_; }
163 template <typename T>
164 void PrintTo(const PrintableViaPrintToTemplate<T>& x, ::std::ostream* os) {
165 *os << "PrintableViaPrintToTemplate: " << x.value();
168 // A user-defined streamable class template in a user namespace.
169 template <typename T>
170 class StreamableTemplateInFoo {
172 StreamableTemplateInFoo() : value_() {}
174 const T& value() const { return value_; }
179 template <typename T>
180 inline ::std::ostream& operator<<(::std::ostream& os,
181 const StreamableTemplateInFoo<T>& x) {
182 return os << "StreamableTemplateInFoo: " << x.value();
188 namespace gtest_printers_test {
192 using ::std::make_pair;
194 using ::std::multimap;
195 using ::std::multiset;
199 using ::testing::PrintToString;
200 using ::testing::internal::FormatForComparisonFailureMessage;
201 using ::testing::internal::ImplicitCast_;
202 using ::testing::internal::NativeArray;
203 using ::testing::internal::RE;
204 using ::testing::internal::Strings;
205 using ::testing::internal::UniversalPrint;
206 using ::testing::internal::UniversalPrinter;
207 using ::testing::internal::UniversalTersePrint;
208 using ::testing::internal::UniversalTersePrintTupleFieldsToStrings;
209 using ::testing::internal::kReference;
210 using ::testing::internal::string;
212 #if GTEST_HAS_TR1_TUPLE
213 using ::std::tr1::make_tuple;
214 using ::std::tr1::tuple;
218 // MSVC defines the following classes in the ::stdext namespace while
219 // gcc defines them in the :: namespace. Note that they are not part
220 // of the C++ standard.
221 using ::stdext::hash_map;
222 using ::stdext::hash_set;
223 using ::stdext::hash_multimap;
224 using ::stdext::hash_multiset;
227 // Prints a value to a string using the universal value printer. This
228 // is a helper for testing UniversalPrinter<T>::Print() for various types.
229 template <typename T>
230 string Print(const T& value) {
231 ::std::stringstream ss;
232 UniversalPrinter<T>::Print(value, &ss);
236 // Prints a value passed by reference to a string, using the universal
237 // value printer. This is a helper for testing
238 // UniversalPrinter<T&>::Print() for various types.
239 template <typename T>
240 string PrintByRef(const T& value) {
241 ::std::stringstream ss;
242 UniversalPrinter<T&>::Print(value, &ss);
246 // Tests printing various enum types.
248 TEST(PrintEnumTest, AnonymousEnum) {
249 EXPECT_EQ("-1", Print(kAE1));
250 EXPECT_EQ("1", Print(kAE2));
253 TEST(PrintEnumTest, EnumWithoutPrinter) {
254 EXPECT_EQ("-2", Print(kEWP1));
255 EXPECT_EQ("42", Print(kEWP2));
258 TEST(PrintEnumTest, EnumWithStreaming) {
259 EXPECT_EQ("kEWS1", Print(kEWS1));
260 EXPECT_EQ("invalid", Print(static_cast<EnumWithStreaming>(0)));
263 TEST(PrintEnumTest, EnumWithPrintTo) {
264 EXPECT_EQ("kEWPT1", Print(kEWPT1));
265 EXPECT_EQ("invalid", Print(static_cast<EnumWithPrintTo>(0)));
268 // Tests printing a class implicitly convertible to BiggestInt.
270 TEST(PrintClassTest, BiggestIntConvertible) {
271 EXPECT_EQ("42", Print(BiggestIntConvertible()));
274 // Tests printing various char types.
277 TEST(PrintCharTest, PlainChar) {
278 EXPECT_EQ("'\\0'", Print('\0'));
279 EXPECT_EQ("'\\'' (39, 0x27)", Print('\''));
280 EXPECT_EQ("'\"' (34, 0x22)", Print('"'));
281 EXPECT_EQ("'?' (63, 0x3F)", Print('?'));
282 EXPECT_EQ("'\\\\' (92, 0x5C)", Print('\\'));
283 EXPECT_EQ("'\\a' (7)", Print('\a'));
284 EXPECT_EQ("'\\b' (8)", Print('\b'));
285 EXPECT_EQ("'\\f' (12, 0xC)", Print('\f'));
286 EXPECT_EQ("'\\n' (10, 0xA)", Print('\n'));
287 EXPECT_EQ("'\\r' (13, 0xD)", Print('\r'));
288 EXPECT_EQ("'\\t' (9)", Print('\t'));
289 EXPECT_EQ("'\\v' (11, 0xB)", Print('\v'));
290 EXPECT_EQ("'\\x7F' (127)", Print('\x7F'));
291 EXPECT_EQ("'\\xFF' (255)", Print('\xFF'));
292 EXPECT_EQ("' ' (32, 0x20)", Print(' '));
293 EXPECT_EQ("'a' (97, 0x61)", Print('a'));
297 TEST(PrintCharTest, SignedChar) {
298 EXPECT_EQ("'\\0'", Print(static_cast<signed char>('\0')));
299 EXPECT_EQ("'\\xCE' (-50)",
300 Print(static_cast<signed char>(-50)));
304 TEST(PrintCharTest, UnsignedChar) {
305 EXPECT_EQ("'\\0'", Print(static_cast<unsigned char>('\0')));
306 EXPECT_EQ("'b' (98, 0x62)",
307 Print(static_cast<unsigned char>('b')));
310 // Tests printing other simple, built-in types.
313 TEST(PrintBuiltInTypeTest, Bool) {
314 EXPECT_EQ("false", Print(false));
315 EXPECT_EQ("true", Print(true));
319 TEST(PrintBuiltInTypeTest, Wchar_t) {
320 EXPECT_EQ("L'\\0'", Print(L'\0'));
321 EXPECT_EQ("L'\\'' (39, 0x27)", Print(L'\''));
322 EXPECT_EQ("L'\"' (34, 0x22)", Print(L'"'));
323 EXPECT_EQ("L'?' (63, 0x3F)", Print(L'?'));
324 EXPECT_EQ("L'\\\\' (92, 0x5C)", Print(L'\\'));
325 EXPECT_EQ("L'\\a' (7)", Print(L'\a'));
326 EXPECT_EQ("L'\\b' (8)", Print(L'\b'));
327 EXPECT_EQ("L'\\f' (12, 0xC)", Print(L'\f'));
328 EXPECT_EQ("L'\\n' (10, 0xA)", Print(L'\n'));
329 EXPECT_EQ("L'\\r' (13, 0xD)", Print(L'\r'));
330 EXPECT_EQ("L'\\t' (9)", Print(L'\t'));
331 EXPECT_EQ("L'\\v' (11, 0xB)", Print(L'\v'));
332 EXPECT_EQ("L'\\x7F' (127)", Print(L'\x7F'));
333 EXPECT_EQ("L'\\xFF' (255)", Print(L'\xFF'));
334 EXPECT_EQ("L' ' (32, 0x20)", Print(L' '));
335 EXPECT_EQ("L'a' (97, 0x61)", Print(L'a'));
336 EXPECT_EQ("L'\\x576' (1398)", Print(static_cast<wchar_t>(0x576)));
337 EXPECT_EQ("L'\\xC74D' (51021)", Print(static_cast<wchar_t>(0xC74D)));
340 // Test that Int64 provides more storage than wchar_t.
341 TEST(PrintTypeSizeTest, Wchar_t) {
342 EXPECT_LT(sizeof(wchar_t), sizeof(testing::internal::Int64));
345 // Various integer types.
346 TEST(PrintBuiltInTypeTest, Integer) {
347 EXPECT_EQ("'\\xFF' (255)", Print(static_cast<unsigned char>(255))); // uint8
348 EXPECT_EQ("'\\x80' (-128)", Print(static_cast<signed char>(-128))); // int8
349 EXPECT_EQ("65535", Print(USHRT_MAX)); // uint16
350 EXPECT_EQ("-32768", Print(SHRT_MIN)); // int16
351 EXPECT_EQ("4294967295", Print(UINT_MAX)); // uint32
352 EXPECT_EQ("-2147483648", Print(INT_MIN)); // int32
353 EXPECT_EQ("18446744073709551615",
354 Print(static_cast<testing::internal::UInt64>(-1))); // uint64
355 EXPECT_EQ("-9223372036854775808",
356 Print(static_cast<testing::internal::Int64>(1) << 63)); // int64
360 TEST(PrintBuiltInTypeTest, Size_t) {
361 EXPECT_EQ("1", Print(sizeof('a'))); // size_t.
362 #if !GTEST_OS_WINDOWS
363 // Windows has no ssize_t type.
364 EXPECT_EQ("-2", Print(static_cast<ssize_t>(-2))); // ssize_t.
365 #endif // !GTEST_OS_WINDOWS
369 TEST(PrintBuiltInTypeTest, FloatingPoints) {
370 EXPECT_EQ("1.5", Print(1.5f)); // float
371 EXPECT_EQ("-2.5", Print(-2.5)); // double
374 // Since ::std::stringstream::operator<<(const void *) formats the pointer
375 // output differently with different compilers, we have to create the expected
376 // output first and use it as our expectation.
377 static string PrintPointer(const void *p) {
378 ::std::stringstream expected_result_stream;
379 expected_result_stream << p;
380 return expected_result_stream.str();
383 // Tests printing C strings.
386 TEST(PrintCStringTest, Const) {
387 const char* p = "World";
388 EXPECT_EQ(PrintPointer(p) + " pointing to \"World\"", Print(p));
392 TEST(PrintCStringTest, NonConst) {
394 EXPECT_EQ(PrintPointer(p) + " pointing to \"Hi\"",
395 Print(static_cast<char*>(p)));
399 TEST(PrintCStringTest, Null) {
400 const char* p = NULL;
401 EXPECT_EQ("NULL", Print(p));
404 // Tests that C strings are escaped properly.
405 TEST(PrintCStringTest, EscapesProperly) {
406 const char* p = "'\"?\\\a\b\f\n\r\t\v\x7F\xFF a";
407 EXPECT_EQ(PrintPointer(p) + " pointing to \"'\\\"?\\\\\\a\\b\\f"
408 "\\n\\r\\t\\v\\x7F\\xFF a\"",
414 // MSVC compiler can be configured to define whar_t as a typedef
415 // of unsigned short. Defining an overload for const wchar_t* in that case
416 // would cause pointers to unsigned shorts be printed as wide strings,
417 // possibly accessing more memory than intended and causing invalid
418 // memory accesses. MSVC defines _NATIVE_WCHAR_T_DEFINED symbol when
419 // wchar_t is implemented as a native type.
420 #if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
423 TEST(PrintWideCStringTest, Const) {
424 const wchar_t* p = L"World";
425 EXPECT_EQ(PrintPointer(p) + " pointing to L\"World\"", Print(p));
429 TEST(PrintWideCStringTest, NonConst) {
431 EXPECT_EQ(PrintPointer(p) + " pointing to L\"Hi\"",
432 Print(static_cast<wchar_t*>(p)));
435 // NULL wide C string.
436 TEST(PrintWideCStringTest, Null) {
437 const wchar_t* p = NULL;
438 EXPECT_EQ("NULL", Print(p));
441 // Tests that wide C strings are escaped properly.
442 TEST(PrintWideCStringTest, EscapesProperly) {
443 const wchar_t s[] = {'\'', '"', '?', '\\', '\a', '\b', '\f', '\n', '\r',
444 '\t', '\v', 0xD3, 0x576, 0x8D3, 0xC74D, ' ', 'a', '\0'};
445 EXPECT_EQ(PrintPointer(s) + " pointing to L\"'\\\"?\\\\\\a\\b\\f"
446 "\\n\\r\\t\\v\\xD3\\x576\\x8D3\\xC74D a\"",
447 Print(static_cast<const wchar_t*>(s)));
449 #endif // native wchar_t
451 // Tests printing pointers to other char types.
454 TEST(PrintCharPointerTest, SignedChar) {
455 signed char* p = reinterpret_cast<signed char*>(0x1234);
456 EXPECT_EQ(PrintPointer(p), Print(p));
458 EXPECT_EQ("NULL", Print(p));
461 // const signed char*.
462 TEST(PrintCharPointerTest, ConstSignedChar) {
463 signed char* p = reinterpret_cast<signed char*>(0x1234);
464 EXPECT_EQ(PrintPointer(p), Print(p));
466 EXPECT_EQ("NULL", Print(p));
470 TEST(PrintCharPointerTest, UnsignedChar) {
471 unsigned char* p = reinterpret_cast<unsigned char*>(0x1234);
472 EXPECT_EQ(PrintPointer(p), Print(p));
474 EXPECT_EQ("NULL", Print(p));
477 // const unsigned char*.
478 TEST(PrintCharPointerTest, ConstUnsignedChar) {
479 const unsigned char* p = reinterpret_cast<const unsigned char*>(0x1234);
480 EXPECT_EQ(PrintPointer(p), Print(p));
482 EXPECT_EQ("NULL", Print(p));
485 // Tests printing pointers to simple, built-in types.
488 TEST(PrintPointerToBuiltInTypeTest, Bool) {
489 bool* p = reinterpret_cast<bool*>(0xABCD);
490 EXPECT_EQ(PrintPointer(p), Print(p));
492 EXPECT_EQ("NULL", Print(p));
496 TEST(PrintPointerToBuiltInTypeTest, Void) {
497 void* p = reinterpret_cast<void*>(0xABCD);
498 EXPECT_EQ(PrintPointer(p), Print(p));
500 EXPECT_EQ("NULL", Print(p));
504 TEST(PrintPointerToBuiltInTypeTest, ConstVoid) {
505 const void* p = reinterpret_cast<const void*>(0xABCD);
506 EXPECT_EQ(PrintPointer(p), Print(p));
508 EXPECT_EQ("NULL", Print(p));
511 // Tests printing pointers to pointers.
512 TEST(PrintPointerToPointerTest, IntPointerPointer) {
513 int** p = reinterpret_cast<int**>(0xABCD);
514 EXPECT_EQ(PrintPointer(p), Print(p));
516 EXPECT_EQ("NULL", Print(p));
519 // Tests printing (non-member) function pointers.
521 void MyFunction(int /* n */) {}
523 TEST(PrintPointerTest, NonMemberFunctionPointer) {
524 // We cannot directly cast &MyFunction to const void* because the
525 // standard disallows casting between pointers to functions and
526 // pointers to objects, and some compilers (e.g. GCC 3.4) enforce
529 PrintPointer(reinterpret_cast<const void*>(
530 reinterpret_cast<internal::BiggestInt>(&MyFunction))),
532 int (*p)(bool) = NULL; // NOLINT
533 EXPECT_EQ("NULL", Print(p));
536 // An assertion predicate determining whether a one string is a prefix for
538 template <typename StringType>
539 AssertionResult HasPrefix(const StringType& str, const StringType& prefix) {
540 if (str.find(prefix, 0) == 0)
541 return AssertionSuccess();
543 const bool is_wide_string = sizeof(prefix[0]) > 1;
544 const char* const begin_string_quote = is_wide_string ? "L\"" : "\"";
545 return AssertionFailure()
546 << begin_string_quote << prefix << "\" is not a prefix of "
547 << begin_string_quote << str << "\"\n";
550 // Tests printing member variable pointers. Although they are called
551 // pointers, they don't point to a location in the address space.
552 // Their representation is implementation-defined. Thus they will be
553 // printed as raw bytes.
558 int MyMethod(char x) { return x + 1; }
559 virtual char MyVirtualMethod(int /* n */) { return 'a'; }
564 TEST(PrintPointerTest, MemberVariablePointer) {
565 EXPECT_TRUE(HasPrefix(Print(&Foo::value),
566 Print(sizeof(&Foo::value)) + "-byte object "));
567 int (Foo::*p) = NULL; // NOLINT
568 EXPECT_TRUE(HasPrefix(Print(p),
569 Print(sizeof(p)) + "-byte object "));
572 // Tests printing member function pointers. Although they are called
573 // pointers, they don't point to a location in the address space.
574 // Their representation is implementation-defined. Thus they will be
575 // printed as raw bytes.
576 TEST(PrintPointerTest, MemberFunctionPointer) {
577 EXPECT_TRUE(HasPrefix(Print(&Foo::MyMethod),
578 Print(sizeof(&Foo::MyMethod)) + "-byte object "));
580 HasPrefix(Print(&Foo::MyVirtualMethod),
581 Print(sizeof((&Foo::MyVirtualMethod))) + "-byte object "));
582 int (Foo::*p)(char) = NULL; // NOLINT
583 EXPECT_TRUE(HasPrefix(Print(p),
584 Print(sizeof(p)) + "-byte object "));
587 // Tests printing C arrays.
589 // The difference between this and Print() is that it ensures that the
590 // argument is a reference to an array.
591 template <typename T, size_t N>
592 string PrintArrayHelper(T (&a)[N]) {
596 // One-dimensional array.
597 TEST(PrintArrayTest, OneDimensionalArray) {
598 int a[5] = { 1, 2, 3, 4, 5 };
599 EXPECT_EQ("{ 1, 2, 3, 4, 5 }", PrintArrayHelper(a));
602 // Two-dimensional array.
603 TEST(PrintArrayTest, TwoDimensionalArray) {
608 EXPECT_EQ("{ { 1, 2, 3, 4, 5 }, { 6, 7, 8, 9, 0 } }", PrintArrayHelper(a));
611 // Array of const elements.
612 TEST(PrintArrayTest, ConstArray) {
613 const bool a[1] = { false };
614 EXPECT_EQ("{ false }", PrintArrayHelper(a));
617 // char array without terminating NUL.
618 TEST(PrintArrayTest, CharArrayWithNoTerminatingNul) {
619 // Array a contains '\0' in the middle and doesn't end with '\0'.
620 char a[] = { 'H', '\0', 'i' };
621 EXPECT_EQ("\"H\\0i\" (no terminating NUL)", PrintArrayHelper(a));
624 // const char array with terminating NUL.
625 TEST(PrintArrayTest, ConstCharArrayWithTerminatingNul) {
626 const char a[] = "\0Hi";
627 EXPECT_EQ("\"\\0Hi\"", PrintArrayHelper(a));
630 // const wchar_t array without terminating NUL.
631 TEST(PrintArrayTest, WCharArrayWithNoTerminatingNul) {
632 // Array a contains '\0' in the middle and doesn't end with '\0'.
633 const wchar_t a[] = { L'H', L'\0', L'i' };
634 EXPECT_EQ("L\"H\\0i\" (no terminating NUL)", PrintArrayHelper(a));
637 // wchar_t array with terminating NUL.
638 TEST(PrintArrayTest, WConstCharArrayWithTerminatingNul) {
639 const wchar_t a[] = L"\0Hi";
640 EXPECT_EQ("L\"\\0Hi\"", PrintArrayHelper(a));
644 TEST(PrintArrayTest, ObjectArray) {
645 string a[3] = { "Hi", "Hello", "Ni hao" };
646 EXPECT_EQ("{ \"Hi\", \"Hello\", \"Ni hao\" }", PrintArrayHelper(a));
649 // Array with many elements.
650 TEST(PrintArrayTest, BigArray) {
651 int a[100] = { 1, 2, 3 };
652 EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, ..., 0, 0, 0, 0, 0, 0, 0, 0 }",
653 PrintArrayHelper(a));
656 // Tests printing ::string and ::std::string.
658 #if GTEST_HAS_GLOBAL_STRING
660 TEST(PrintStringTest, StringInGlobalNamespace) {
661 const char s[] = "'\"?\\\a\b\f\n\0\r\t\v\x7F\xFF a";
662 const ::string str(s, sizeof(s));
663 EXPECT_EQ("\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v\\x7F\\xFF a\\0\"",
666 #endif // GTEST_HAS_GLOBAL_STRING
669 TEST(PrintStringTest, StringInStdNamespace) {
670 const char s[] = "'\"?\\\a\b\f\n\0\r\t\v\x7F\xFF a";
671 const ::std::string str(s, sizeof(s));
672 EXPECT_EQ("\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v\\x7F\\xFF a\\0\"",
676 TEST(PrintStringTest, StringAmbiguousHex) {
677 // "\x6BANANA" is ambiguous, it can be interpreted as starting with either of:
678 // '\x6', '\x6B', or '\x6BA'.
680 // a hex escaping sequence following by a decimal digit
681 EXPECT_EQ("\"0\\x12\" \"3\"", Print(::std::string("0\x12" "3")));
682 // a hex escaping sequence following by a hex digit (lower-case)
683 EXPECT_EQ("\"mm\\x6\" \"bananas\"", Print(::std::string("mm\x6" "bananas")));
684 // a hex escaping sequence following by a hex digit (upper-case)
685 EXPECT_EQ("\"NOM\\x6\" \"BANANA\"", Print(::std::string("NOM\x6" "BANANA")));
686 // a hex escaping sequence following by a non-xdigit
687 EXPECT_EQ("\"!\\x5-!\"", Print(::std::string("!\x5-!")));
690 // Tests printing ::wstring and ::std::wstring.
692 #if GTEST_HAS_GLOBAL_WSTRING
694 TEST(PrintWideStringTest, StringInGlobalNamespace) {
695 const wchar_t s[] = L"'\"?\\\a\b\f\n\0\r\t\v\xD3\x576\x8D3\xC74D a";
696 const ::wstring str(s, sizeof(s)/sizeof(wchar_t));
697 EXPECT_EQ("L\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v"
698 "\\xD3\\x576\\x8D3\\xC74D a\\0\"",
701 #endif // GTEST_HAS_GLOBAL_WSTRING
703 #if GTEST_HAS_STD_WSTRING
705 TEST(PrintWideStringTest, StringInStdNamespace) {
706 const wchar_t s[] = L"'\"?\\\a\b\f\n\0\r\t\v\xD3\x576\x8D3\xC74D a";
707 const ::std::wstring str(s, sizeof(s)/sizeof(wchar_t));
708 EXPECT_EQ("L\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v"
709 "\\xD3\\x576\\x8D3\\xC74D a\\0\"",
713 TEST(PrintWideStringTest, StringAmbiguousHex) {
714 // same for wide strings.
715 EXPECT_EQ("L\"0\\x12\" L\"3\"", Print(::std::wstring(L"0\x12" L"3")));
716 EXPECT_EQ("L\"mm\\x6\" L\"bananas\"",
717 Print(::std::wstring(L"mm\x6" L"bananas")));
718 EXPECT_EQ("L\"NOM\\x6\" L\"BANANA\"",
719 Print(::std::wstring(L"NOM\x6" L"BANANA")));
720 EXPECT_EQ("L\"!\\x5-!\"", Print(::std::wstring(L"!\x5-!")));
722 #endif // GTEST_HAS_STD_WSTRING
724 // Tests printing types that support generic streaming (i.e. streaming
725 // to std::basic_ostream<Char, CharTraits> for any valid Char and
726 // CharTraits types).
728 // Tests printing a non-template type that supports generic streaming.
730 class AllowsGenericStreaming {};
732 template <typename Char, typename CharTraits>
733 std::basic_ostream<Char, CharTraits>& operator<<(
734 std::basic_ostream<Char, CharTraits>& os,
735 const AllowsGenericStreaming& /* a */) {
736 return os << "AllowsGenericStreaming";
739 TEST(PrintTypeWithGenericStreamingTest, NonTemplateType) {
740 AllowsGenericStreaming a;
741 EXPECT_EQ("AllowsGenericStreaming", Print(a));
744 // Tests printing a template type that supports generic streaming.
746 template <typename T>
747 class AllowsGenericStreamingTemplate {};
749 template <typename Char, typename CharTraits, typename T>
750 std::basic_ostream<Char, CharTraits>& operator<<(
751 std::basic_ostream<Char, CharTraits>& os,
752 const AllowsGenericStreamingTemplate<T>& /* a */) {
753 return os << "AllowsGenericStreamingTemplate";
756 TEST(PrintTypeWithGenericStreamingTest, TemplateType) {
757 AllowsGenericStreamingTemplate<int> a;
758 EXPECT_EQ("AllowsGenericStreamingTemplate", Print(a));
761 // Tests printing a type that supports generic streaming and can be
762 // implicitly converted to another printable type.
764 template <typename T>
765 class AllowsGenericStreamingAndImplicitConversionTemplate {
767 operator bool() const { return false; }
770 template <typename Char, typename CharTraits, typename T>
771 std::basic_ostream<Char, CharTraits>& operator<<(
772 std::basic_ostream<Char, CharTraits>& os,
773 const AllowsGenericStreamingAndImplicitConversionTemplate<T>& /* a */) {
774 return os << "AllowsGenericStreamingAndImplicitConversionTemplate";
777 TEST(PrintTypeWithGenericStreamingTest, TypeImplicitlyConvertible) {
778 AllowsGenericStreamingAndImplicitConversionTemplate<int> a;
779 EXPECT_EQ("AllowsGenericStreamingAndImplicitConversionTemplate", Print(a));
782 #if GTEST_HAS_STRING_PIECE_
784 // Tests printing StringPiece.
786 TEST(PrintStringPieceTest, SimpleStringPiece) {
787 const StringPiece sp = "Hello";
788 EXPECT_EQ("\"Hello\"", Print(sp));
791 TEST(PrintStringPieceTest, UnprintableCharacters) {
792 const char str[] = "NUL (\0) and \r\t";
793 const StringPiece sp(str, sizeof(str) - 1);
794 EXPECT_EQ("\"NUL (\\0) and \\r\\t\"", Print(sp));
797 #endif // GTEST_HAS_STRING_PIECE_
799 // Tests printing STL containers.
801 TEST(PrintStlContainerTest, EmptyDeque) {
803 EXPECT_EQ("{}", Print(empty));
806 TEST(PrintStlContainerTest, NonEmptyDeque) {
807 deque<int> non_empty;
808 non_empty.push_back(1);
809 non_empty.push_back(3);
810 EXPECT_EQ("{ 1, 3 }", Print(non_empty));
813 #if GTEST_HAS_HASH_MAP_
815 TEST(PrintStlContainerTest, OneElementHashMap) {
816 hash_map<int, char> map1;
818 EXPECT_EQ("{ (1, 'a' (97, 0x61)) }", Print(map1));
821 TEST(PrintStlContainerTest, HashMultiMap) {
822 hash_multimap<int, bool> map1;
823 map1.insert(make_pair(5, true));
824 map1.insert(make_pair(5, false));
826 // Elements of hash_multimap can be printed in any order.
827 const string result = Print(map1);
828 EXPECT_TRUE(result == "{ (5, true), (5, false) }" ||
829 result == "{ (5, false), (5, true) }")
830 << " where Print(map1) returns \"" << result << "\".";
833 #endif // GTEST_HAS_HASH_MAP_
835 #if GTEST_HAS_HASH_SET_
837 TEST(PrintStlContainerTest, HashSet) {
838 hash_set<string> set1;
839 set1.insert("hello");
840 EXPECT_EQ("{ \"hello\" }", Print(set1));
843 TEST(PrintStlContainerTest, HashMultiSet) {
845 int a[kSize] = { 1, 1, 2, 5, 1 };
846 hash_multiset<int> set1(a, a + kSize);
848 // Elements of hash_multiset can be printed in any order.
849 const string result = Print(set1);
850 const string expected_pattern = "{ d, d, d, d, d }"; // d means a digit.
852 // Verifies the result matches the expected pattern; also extracts
853 // the numbers in the result.
854 ASSERT_EQ(expected_pattern.length(), result.length());
855 std::vector<int> numbers;
856 for (size_t i = 0; i != result.length(); i++) {
857 if (expected_pattern[i] == 'd') {
858 ASSERT_NE(isdigit(static_cast<unsigned char>(result[i])), 0);
859 numbers.push_back(result[i] - '0');
861 EXPECT_EQ(expected_pattern[i], result[i]) << " where result is "
866 // Makes sure the result contains the right numbers.
867 std::sort(numbers.begin(), numbers.end());
868 std::sort(a, a + kSize);
869 EXPECT_TRUE(std::equal(a, a + kSize, numbers.begin()));
872 #endif // GTEST_HAS_HASH_SET_
874 TEST(PrintStlContainerTest, List) {
879 const list<string> strings(a, a + 2);
880 EXPECT_EQ("{ \"hello\", \"world\" }", Print(strings));
883 TEST(PrintStlContainerTest, Map) {
888 EXPECT_EQ("{ (1, true), (3, true), (5, false) }", Print(map1));
891 TEST(PrintStlContainerTest, MultiMap) {
892 multimap<bool, int> map1;
893 // The make_pair template function would deduce the type as
894 // pair<bool, int> here, and since the key part in a multimap has to
895 // be constant, without a templated ctor in the pair class (as in
896 // libCstd on Solaris), make_pair call would fail to compile as no
897 // implicit conversion is found. Thus explicit typename is used
899 map1.insert(pair<const bool, int>(true, 0));
900 map1.insert(pair<const bool, int>(true, 1));
901 map1.insert(pair<const bool, int>(false, 2));
902 EXPECT_EQ("{ (false, 2), (true, 0), (true, 1) }", Print(map1));
905 TEST(PrintStlContainerTest, Set) {
906 const unsigned int a[] = { 3, 0, 5 };
907 set<unsigned int> set1(a, a + 3);
908 EXPECT_EQ("{ 0, 3, 5 }", Print(set1));
911 TEST(PrintStlContainerTest, MultiSet) {
912 const int a[] = { 1, 1, 2, 5, 1 };
913 multiset<int> set1(a, a + 5);
914 EXPECT_EQ("{ 1, 1, 1, 2, 5 }", Print(set1));
917 TEST(PrintStlContainerTest, Pair) {
918 pair<const bool, int> p(true, 5);
919 EXPECT_EQ("(true, 5)", Print(p));
922 TEST(PrintStlContainerTest, Vector) {
926 EXPECT_EQ("{ 1, 2 }", Print(v));
929 TEST(PrintStlContainerTest, LongSequence) {
930 const int a[100] = { 1, 2, 3 };
931 const vector<int> v(a, a + 100);
932 EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "
933 "0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ... }", Print(v));
936 TEST(PrintStlContainerTest, NestedContainer) {
937 const int a1[] = { 1, 2 };
938 const int a2[] = { 3, 4, 5 };
939 const list<int> l1(a1, a1 + 2);
940 const list<int> l2(a2, a2 + 3);
942 vector<list<int> > v;
945 EXPECT_EQ("{ { 1, 2 }, { 3, 4, 5 } }", Print(v));
948 TEST(PrintStlContainerTest, OneDimensionalNativeArray) {
949 const int a[3] = { 1, 2, 3 };
950 NativeArray<int> b(a, 3, kReference);
951 EXPECT_EQ("{ 1, 2, 3 }", Print(b));
954 TEST(PrintStlContainerTest, TwoDimensionalNativeArray) {
955 const int a[2][3] = { { 1, 2, 3 }, { 4, 5, 6 } };
956 NativeArray<int[3]> b(a, 2, kReference);
957 EXPECT_EQ("{ { 1, 2, 3 }, { 4, 5, 6 } }", Print(b));
960 // Tests that a class named iterator isn't treated as a container.
966 TEST(PrintStlContainerTest, Iterator) {
968 EXPECT_EQ("1-byte object <00>", Print(it));
971 // Tests that a class named const_iterator isn't treated as a container.
973 struct const_iterator {
977 TEST(PrintStlContainerTest, ConstIterator) {
978 const_iterator it = {};
979 EXPECT_EQ("1-byte object <00>", Print(it));
982 #if GTEST_HAS_TR1_TUPLE
983 // Tests printing tuples.
985 // Tuples of various arities.
986 TEST(PrintTupleTest, VariousSizes) {
988 EXPECT_EQ("()", Print(t0));
991 EXPECT_EQ("(5)", Print(t1));
993 tuple<char, bool> t2('a', true);
994 EXPECT_EQ("('a' (97, 0x61), true)", Print(t2));
996 tuple<bool, int, int> t3(false, 2, 3);
997 EXPECT_EQ("(false, 2, 3)", Print(t3));
999 tuple<bool, int, int, int> t4(false, 2, 3, 4);
1000 EXPECT_EQ("(false, 2, 3, 4)", Print(t4));
1002 tuple<bool, int, int, int, bool> t5(false, 2, 3, 4, true);
1003 EXPECT_EQ("(false, 2, 3, 4, true)", Print(t5));
1005 tuple<bool, int, int, int, bool, int> t6(false, 2, 3, 4, true, 6);
1006 EXPECT_EQ("(false, 2, 3, 4, true, 6)", Print(t6));
1008 tuple<bool, int, int, int, bool, int, int> t7(false, 2, 3, 4, true, 6, 7);
1009 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7)", Print(t7));
1011 tuple<bool, int, int, int, bool, int, int, bool> t8(
1012 false, 2, 3, 4, true, 6, 7, true);
1013 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true)", Print(t8));
1015 tuple<bool, int, int, int, bool, int, int, bool, int> t9(
1016 false, 2, 3, 4, true, 6, 7, true, 9);
1017 EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true, 9)", Print(t9));
1019 const char* const str = "8";
1020 // VC++ 2010's implementation of tuple of C++0x is deficient, requiring
1021 // an explicit type cast of NULL to be used.
1022 tuple<bool, char, short, testing::internal::Int32, // NOLINT
1023 testing::internal::Int64, float, double, const char*, void*, string>
1024 t10(false, 'a', 3, 4, 5, 1.5F, -2.5, str,
1025 ImplicitCast_<void*>(NULL), "10");
1026 EXPECT_EQ("(false, 'a' (97, 0x61), 3, 4, 5, 1.5, -2.5, " + PrintPointer(str) +
1027 " pointing to \"8\", NULL, \"10\")",
1032 TEST(PrintTupleTest, NestedTuple) {
1033 tuple<tuple<int, bool>, char> nested(make_tuple(5, true), 'a');
1034 EXPECT_EQ("((5, true), 'a' (97, 0x61))", Print(nested));
1037 #endif // GTEST_HAS_TR1_TUPLE
1039 // Tests printing user-defined unprintable types.
1041 // Unprintable types in the global namespace.
1042 TEST(PrintUnprintableTypeTest, InGlobalNamespace) {
1043 EXPECT_EQ("1-byte object <00>",
1044 Print(UnprintableTemplateInGlobal<char>()));
1047 // Unprintable types in a user namespace.
1048 TEST(PrintUnprintableTypeTest, InUserNamespace) {
1049 EXPECT_EQ("16-byte object <EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
1050 Print(::foo::UnprintableInFoo()));
1053 // Unprintable types are that too big to be printed completely.
1056 Big() { memset(array, 0, sizeof(array)); }
1060 TEST(PrintUnpritableTypeTest, BigObject) {
1061 EXPECT_EQ("257-byte object <00-00 00-00 00-00 00-00 00-00 00-00 "
1062 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1063 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1064 "00-00 00-00 00-00 00-00 00-00 00-00 ... 00-00 00-00 00-00 "
1065 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1066 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 "
1067 "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00>",
1071 // Tests printing user-defined streamable types.
1073 // Streamable types in the global namespace.
1074 TEST(PrintStreamableTypeTest, InGlobalNamespace) {
1075 StreamableInGlobal x;
1076 EXPECT_EQ("StreamableInGlobal", Print(x));
1077 EXPECT_EQ("StreamableInGlobal*", Print(&x));
1080 // Printable template types in a user namespace.
1081 TEST(PrintStreamableTypeTest, TemplateTypeInUserNamespace) {
1082 EXPECT_EQ("StreamableTemplateInFoo: 0",
1083 Print(::foo::StreamableTemplateInFoo<int>()));
1086 // Tests printing user-defined types that have a PrintTo() function.
1087 TEST(PrintPrintableTypeTest, InUserNamespace) {
1088 EXPECT_EQ("PrintableViaPrintTo: 0",
1089 Print(::foo::PrintableViaPrintTo()));
1092 // Tests printing a pointer to a user-defined type that has a <<
1093 // operator for its pointer.
1094 TEST(PrintPrintableTypeTest, PointerInUserNamespace) {
1095 ::foo::PointerPrintable x;
1096 EXPECT_EQ("PointerPrintable*", Print(&x));
1099 // Tests printing user-defined class template that have a PrintTo() function.
1100 TEST(PrintPrintableTypeTest, TemplateInUserNamespace) {
1101 EXPECT_EQ("PrintableViaPrintToTemplate: 5",
1102 Print(::foo::PrintableViaPrintToTemplate<int>(5)));
1105 #if GTEST_HAS_PROTOBUF_
1107 // Tests printing a protocol message.
1108 TEST(PrintProtocolMessageTest, PrintsShortDebugString) {
1109 testing::internal::TestMessage msg;
1110 msg.set_member("yes");
1111 EXPECT_EQ("<member:\"yes\">", Print(msg));
1114 // Tests printing a short proto2 message.
1115 TEST(PrintProto2MessageTest, PrintsShortDebugStringWhenItIsShort) {
1116 testing::internal::FooMessage msg;
1117 msg.set_int_field(2);
1118 msg.set_string_field("hello");
1119 EXPECT_PRED2(RE::FullMatch, Print(msg),
1120 "<int_field:\\s*2\\s+string_field:\\s*\"hello\">");
1123 // Tests printing a long proto2 message.
1124 TEST(PrintProto2MessageTest, PrintsDebugStringWhenItIsLong) {
1125 testing::internal::FooMessage msg;
1126 msg.set_int_field(2);
1127 msg.set_string_field("hello");
1128 msg.add_names("peter");
1129 msg.add_names("paul");
1130 msg.add_names("mary");
1131 EXPECT_PRED2(RE::FullMatch, Print(msg),
1134 "string_field:\\s*\"hello\"\n"
1135 "names:\\s*\"peter\"\n"
1136 "names:\\s*\"paul\"\n"
1137 "names:\\s*\"mary\"\n"
1141 #endif // GTEST_HAS_PROTOBUF_
1143 // Tests that the universal printer prints both the address and the
1144 // value of a reference.
1145 TEST(PrintReferenceTest, PrintsAddressAndValue) {
1147 EXPECT_EQ("@" + PrintPointer(&n) + " 5", PrintByRef(n));
1153 EXPECT_EQ("@" + PrintPointer(a) + " { { 0, 1, 2 }, { 3, 4, 5 } }",
1156 const ::foo::UnprintableInFoo x;
1157 EXPECT_EQ("@" + PrintPointer(&x) + " 16-byte object "
1158 "<EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
1162 // Tests that the universal printer prints a function pointer passed by
1164 TEST(PrintReferenceTest, HandlesFunctionPointer) {
1165 void (*fp)(int n) = &MyFunction;
1166 const string fp_pointer_string =
1167 PrintPointer(reinterpret_cast<const void*>(&fp));
1168 // We cannot directly cast &MyFunction to const void* because the
1169 // standard disallows casting between pointers to functions and
1170 // pointers to objects, and some compilers (e.g. GCC 3.4) enforce
1172 const string fp_string = PrintPointer(reinterpret_cast<const void*>(
1173 reinterpret_cast<internal::BiggestInt>(fp)));
1174 EXPECT_EQ("@" + fp_pointer_string + " " + fp_string,
1178 // Tests that the universal printer prints a member function pointer
1179 // passed by reference.
1180 TEST(PrintReferenceTest, HandlesMemberFunctionPointer) {
1181 int (Foo::*p)(char ch) = &Foo::MyMethod;
1182 EXPECT_TRUE(HasPrefix(
1184 "@" + PrintPointer(reinterpret_cast<const void*>(&p)) + " " +
1185 Print(sizeof(p)) + "-byte object "));
1187 char (Foo::*p2)(int n) = &Foo::MyVirtualMethod;
1188 EXPECT_TRUE(HasPrefix(
1190 "@" + PrintPointer(reinterpret_cast<const void*>(&p2)) + " " +
1191 Print(sizeof(p2)) + "-byte object "));
1194 // Tests that the universal printer prints a member variable pointer
1195 // passed by reference.
1196 TEST(PrintReferenceTest, HandlesMemberVariablePointer) {
1197 int (Foo::*p) = &Foo::value; // NOLINT
1198 EXPECT_TRUE(HasPrefix(
1200 "@" + PrintPointer(&p) + " " + Print(sizeof(p)) + "-byte object "));
1203 // Tests that FormatForComparisonFailureMessage(), which is used to print
1204 // an operand in a comparison assertion (e.g. ASSERT_EQ) when the assertion
1205 // fails, formats the operand in the desired way.
1208 TEST(FormatForComparisonFailureMessageTest, WorksForScalar) {
1210 FormatForComparisonFailureMessage(123, 124).c_str());
1214 TEST(FormatForComparisonFailureMessageTest, WorksForNonCharPointer) {
1216 EXPECT_EQ(PrintPointer(&n),
1217 FormatForComparisonFailureMessage(&n, &n).c_str());
1221 TEST(FormatForComparisonFailureMessageTest, FormatsNonCharArrayAsPointer) {
1222 // In expression 'array == x', 'array' is compared by pointer.
1223 // Therefore we want to print an array operand as a pointer.
1224 int n[] = { 1, 2, 3 };
1225 EXPECT_EQ(PrintPointer(n),
1226 FormatForComparisonFailureMessage(n, n).c_str());
1229 // Tests formatting a char pointer when it's compared with another pointer.
1230 // In this case we want to print it as a raw pointer, as the comparision is by
1233 // char pointer vs pointer
1234 TEST(FormatForComparisonFailureMessageTest, WorksForCharPointerVsPointer) {
1235 // In expression 'p == x', where 'p' and 'x' are (const or not) char
1236 // pointers, the operands are compared by pointer. Therefore we
1237 // want to print 'p' as a pointer instead of a C string (we don't
1238 // even know if it's supposed to point to a valid C string).
1241 const char* s = "hello";
1242 EXPECT_EQ(PrintPointer(s),
1243 FormatForComparisonFailureMessage(s, s).c_str());
1247 EXPECT_EQ(PrintPointer(&ch),
1248 FormatForComparisonFailureMessage(&ch, &ch).c_str());
1251 // wchar_t pointer vs pointer
1252 TEST(FormatForComparisonFailureMessageTest, WorksForWCharPointerVsPointer) {
1253 // In expression 'p == x', where 'p' and 'x' are (const or not) char
1254 // pointers, the operands are compared by pointer. Therefore we
1255 // want to print 'p' as a pointer instead of a wide C string (we don't
1256 // even know if it's supposed to point to a valid wide C string).
1259 const wchar_t* s = L"hello";
1260 EXPECT_EQ(PrintPointer(s),
1261 FormatForComparisonFailureMessage(s, s).c_str());
1265 EXPECT_EQ(PrintPointer(&ch),
1266 FormatForComparisonFailureMessage(&ch, &ch).c_str());
1269 // Tests formatting a char pointer when it's compared to a string object.
1270 // In this case we want to print the char pointer as a C string.
1272 #if GTEST_HAS_GLOBAL_STRING
1273 // char pointer vs ::string
1274 TEST(FormatForComparisonFailureMessageTest, WorksForCharPointerVsString) {
1275 const char* s = "hello \"world";
1276 EXPECT_STREQ("\"hello \\\"world\"", // The string content should be escaped.
1277 FormatForComparisonFailureMessage(s, ::string()).c_str());
1280 char str[] = "hi\1";
1282 EXPECT_STREQ("\"hi\\x1\"", // The string content should be escaped.
1283 FormatForComparisonFailureMessage(p, ::string()).c_str());
1287 // char pointer vs std::string
1288 TEST(FormatForComparisonFailureMessageTest, WorksForCharPointerVsStdString) {
1289 const char* s = "hello \"world";
1290 EXPECT_STREQ("\"hello \\\"world\"", // The string content should be escaped.
1291 FormatForComparisonFailureMessage(s, ::std::string()).c_str());
1294 char str[] = "hi\1";
1296 EXPECT_STREQ("\"hi\\x1\"", // The string content should be escaped.
1297 FormatForComparisonFailureMessage(p, ::std::string()).c_str());
1300 #if GTEST_HAS_GLOBAL_WSTRING
1301 // wchar_t pointer vs ::wstring
1302 TEST(FormatForComparisonFailureMessageTest, WorksForWCharPointerVsWString) {
1303 const wchar_t* s = L"hi \"world";
1304 EXPECT_STREQ("L\"hi \\\"world\"", // The string content should be escaped.
1305 FormatForComparisonFailureMessage(s, ::wstring()).c_str());
1308 wchar_t str[] = L"hi\1";
1310 EXPECT_STREQ("L\"hi\\x1\"", // The string content should be escaped.
1311 FormatForComparisonFailureMessage(p, ::wstring()).c_str());
1315 #if GTEST_HAS_STD_WSTRING
1316 // wchar_t pointer vs std::wstring
1317 TEST(FormatForComparisonFailureMessageTest, WorksForWCharPointerVsStdWString) {
1318 const wchar_t* s = L"hi \"world";
1319 EXPECT_STREQ("L\"hi \\\"world\"", // The string content should be escaped.
1320 FormatForComparisonFailureMessage(s, ::std::wstring()).c_str());
1323 wchar_t str[] = L"hi\1";
1325 EXPECT_STREQ("L\"hi\\x1\"", // The string content should be escaped.
1326 FormatForComparisonFailureMessage(p, ::std::wstring()).c_str());
1330 // Tests formatting a char array when it's compared with a pointer or array.
1331 // In this case we want to print the array as a row pointer, as the comparison
1334 // char array vs pointer
1335 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsPointer) {
1336 char str[] = "hi \"world\"";
1338 EXPECT_EQ(PrintPointer(str),
1339 FormatForComparisonFailureMessage(str, p).c_str());
1342 // char array vs char array
1343 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsCharArray) {
1344 const char str[] = "hi \"world\"";
1345 EXPECT_EQ(PrintPointer(str),
1346 FormatForComparisonFailureMessage(str, str).c_str());
1349 // wchar_t array vs pointer
1350 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsPointer) {
1351 wchar_t str[] = L"hi \"world\"";
1353 EXPECT_EQ(PrintPointer(str),
1354 FormatForComparisonFailureMessage(str, p).c_str());
1357 // wchar_t array vs wchar_t array
1358 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsWCharArray) {
1359 const wchar_t str[] = L"hi \"world\"";
1360 EXPECT_EQ(PrintPointer(str),
1361 FormatForComparisonFailureMessage(str, str).c_str());
1364 // Tests formatting a char array when it's compared with a string object.
1365 // In this case we want to print the array as a C string.
1367 #if GTEST_HAS_GLOBAL_STRING
1368 // char array vs string
1369 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsString) {
1370 const char str[] = "hi \"w\0rld\"";
1371 EXPECT_STREQ("\"hi \\\"w\"", // The content should be escaped.
1372 // Embedded NUL terminates the string.
1373 FormatForComparisonFailureMessage(str, ::string()).c_str());
1377 // char array vs std::string
1378 TEST(FormatForComparisonFailureMessageTest, WorksForCharArrayVsStdString) {
1379 const char str[] = "hi \"world\"";
1380 EXPECT_STREQ("\"hi \\\"world\\\"\"", // The content should be escaped.
1381 FormatForComparisonFailureMessage(str, ::std::string()).c_str());
1384 #if GTEST_HAS_GLOBAL_WSTRING
1385 // wchar_t array vs wstring
1386 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsWString) {
1387 const wchar_t str[] = L"hi \"world\"";
1388 EXPECT_STREQ("L\"hi \\\"world\\\"\"", // The content should be escaped.
1389 FormatForComparisonFailureMessage(str, ::wstring()).c_str());
1393 #if GTEST_HAS_STD_WSTRING
1394 // wchar_t array vs std::wstring
1395 TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsStdWString) {
1396 const wchar_t str[] = L"hi \"w\0rld\"";
1398 "L\"hi \\\"w\"", // The content should be escaped.
1399 // Embedded NUL terminates the string.
1400 FormatForComparisonFailureMessage(str, ::std::wstring()).c_str());
1404 // Useful for testing PrintToString(). We cannot use EXPECT_EQ()
1405 // there as its implementation uses PrintToString(). The caller must
1406 // ensure that 'value' has no side effect.
1407 #define EXPECT_PRINT_TO_STRING_(value, expected_string) \
1408 EXPECT_TRUE(PrintToString(value) == (expected_string)) \
1409 << " where " #value " prints as " << (PrintToString(value))
1411 TEST(PrintToStringTest, WorksForScalar) {
1412 EXPECT_PRINT_TO_STRING_(123, "123");
1415 TEST(PrintToStringTest, WorksForPointerToConstChar) {
1416 const char* p = "hello";
1417 EXPECT_PRINT_TO_STRING_(p, "\"hello\"");
1420 TEST(PrintToStringTest, WorksForPointerToNonConstChar) {
1423 EXPECT_PRINT_TO_STRING_(p, "\"hello\"");
1426 TEST(PrintToStringTest, EscapesForPointerToConstChar) {
1427 const char* p = "hello\n";
1428 EXPECT_PRINT_TO_STRING_(p, "\"hello\\n\"");
1431 TEST(PrintToStringTest, EscapesForPointerToNonConstChar) {
1432 char s[] = "hello\1";
1434 EXPECT_PRINT_TO_STRING_(p, "\"hello\\x1\"");
1437 TEST(PrintToStringTest, WorksForArray) {
1438 int n[3] = { 1, 2, 3 };
1439 EXPECT_PRINT_TO_STRING_(n, "{ 1, 2, 3 }");
1442 TEST(PrintToStringTest, WorksForCharArray) {
1444 EXPECT_PRINT_TO_STRING_(s, "\"hello\"");
1447 TEST(PrintToStringTest, WorksForCharArrayWithEmbeddedNul) {
1448 const char str_with_nul[] = "hello\0 world";
1449 EXPECT_PRINT_TO_STRING_(str_with_nul, "\"hello\\0 world\"");
1451 char mutable_str_with_nul[] = "hello\0 world";
1452 EXPECT_PRINT_TO_STRING_(mutable_str_with_nul, "\"hello\\0 world\"");
1455 #undef EXPECT_PRINT_TO_STRING_
1457 TEST(UniversalTersePrintTest, WorksForNonReference) {
1458 ::std::stringstream ss;
1459 UniversalTersePrint(123, &ss);
1460 EXPECT_EQ("123", ss.str());
1463 TEST(UniversalTersePrintTest, WorksForReference) {
1465 ::std::stringstream ss;
1466 UniversalTersePrint(n, &ss);
1467 EXPECT_EQ("123", ss.str());
1470 TEST(UniversalTersePrintTest, WorksForCString) {
1471 const char* s1 = "abc";
1472 ::std::stringstream ss1;
1473 UniversalTersePrint(s1, &ss1);
1474 EXPECT_EQ("\"abc\"", ss1.str());
1476 char* s2 = const_cast<char*>(s1);
1477 ::std::stringstream ss2;
1478 UniversalTersePrint(s2, &ss2);
1479 EXPECT_EQ("\"abc\"", ss2.str());
1481 const char* s3 = NULL;
1482 ::std::stringstream ss3;
1483 UniversalTersePrint(s3, &ss3);
1484 EXPECT_EQ("NULL", ss3.str());
1487 TEST(UniversalPrintTest, WorksForNonReference) {
1488 ::std::stringstream ss;
1489 UniversalPrint(123, &ss);
1490 EXPECT_EQ("123", ss.str());
1493 TEST(UniversalPrintTest, WorksForReference) {
1495 ::std::stringstream ss;
1496 UniversalPrint(n, &ss);
1497 EXPECT_EQ("123", ss.str());
1500 TEST(UniversalPrintTest, WorksForCString) {
1501 const char* s1 = "abc";
1502 ::std::stringstream ss1;
1503 UniversalPrint(s1, &ss1);
1504 EXPECT_EQ(PrintPointer(s1) + " pointing to \"abc\"", string(ss1.str()));
1506 char* s2 = const_cast<char*>(s1);
1507 ::std::stringstream ss2;
1508 UniversalPrint(s2, &ss2);
1509 EXPECT_EQ(PrintPointer(s2) + " pointing to \"abc\"", string(ss2.str()));
1511 const char* s3 = NULL;
1512 ::std::stringstream ss3;
1513 UniversalPrint(s3, &ss3);
1514 EXPECT_EQ("NULL", ss3.str());
1517 TEST(UniversalPrintTest, WorksForCharArray) {
1518 const char str[] = "\"Line\0 1\"\nLine 2";
1519 ::std::stringstream ss1;
1520 UniversalPrint(str, &ss1);
1521 EXPECT_EQ("\"\\\"Line\\0 1\\\"\\nLine 2\"", ss1.str());
1523 const char mutable_str[] = "\"Line\0 1\"\nLine 2";
1524 ::std::stringstream ss2;
1525 UniversalPrint(mutable_str, &ss2);
1526 EXPECT_EQ("\"\\\"Line\\0 1\\\"\\nLine 2\"", ss2.str());
1529 #if GTEST_HAS_TR1_TUPLE
1531 TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsEmptyTuple) {
1532 Strings result = UniversalTersePrintTupleFieldsToStrings(make_tuple());
1533 EXPECT_EQ(0u, result.size());
1536 TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsOneTuple) {
1537 Strings result = UniversalTersePrintTupleFieldsToStrings(make_tuple(1));
1538 ASSERT_EQ(1u, result.size());
1539 EXPECT_EQ("1", result[0]);
1542 TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsTwoTuple) {
1543 Strings result = UniversalTersePrintTupleFieldsToStrings(make_tuple(1, 'a'));
1544 ASSERT_EQ(2u, result.size());
1545 EXPECT_EQ("1", result[0]);
1546 EXPECT_EQ("'a' (97, 0x61)", result[1]);
1549 TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsTersely) {
1551 Strings result = UniversalTersePrintTupleFieldsToStrings(
1552 tuple<const int&, const char*>(n, "a"));
1553 ASSERT_EQ(2u, result.size());
1554 EXPECT_EQ("1", result[0]);
1555 EXPECT_EQ("\"a\"", result[1]);
1558 #endif // GTEST_HAS_TR1_TUPLE
1560 } // namespace gtest_printers_test
1561 } // namespace testing