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googletest/test/gmock-printers_test.cc
zhanyong.wan 652540a278 Cleans up macro definitions.
2009-02-23 23:37:29 +00:00

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// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file tests the universal value printer.
#include <gmock/gmock-printers.h>
#include <ctype.h>
#include <limits.h>
#include <string.h>
#include <algorithm>
#include <deque>
#include <list>
#include <map>
#include <set>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include <gmock/gmock-generated-matchers.h>
#include <gmock/gmock-matchers.h>
#include <gmock/internal/gmock-port.h>
#include <gtest/gtest.h>
// hash_map and hash_set are available on Windows.
#if GTEST_OS_WINDOWS
#define GMOCK_HAS_HASH_MAP_ 1 // Indicates that hash_map is available.
#include <hash_map> // NOLINT
#define GMOCK_HAS_HASH_SET_ 1 // Indicates that hash_set is available.
#include <hash_set> // NOLINT
#endif // GTEST_OS_WINDOWS
// Some user-defined types for testing the universal value printer.
// A user-defined unprintable class template in the global namespace.
template <typename T>
class UnprintableTemplateInGlobal {
public:
UnprintableTemplateInGlobal() : value_() {}
private:
T value_;
};
// A user-defined streamable type in the global namespace.
class StreamableInGlobal {
public:
virtual ~StreamableInGlobal() {}
};
inline void operator<<(::std::ostream& os, const StreamableInGlobal& x) {
os << "StreamableInGlobal";
}
namespace foo {
// A user-defined unprintable type in a user namespace.
class UnprintableInFoo {
public:
UnprintableInFoo() : x_(0x12EF), y_(0xAB34), z_(0) {}
private:
testing::internal::Int32 x_;
testing::internal::Int32 y_;
double z_;
};
// A user-defined printable type in a user-chosen namespace.
struct PrintableViaPrintTo {
PrintableViaPrintTo() : value() {}
int value;
};
void PrintTo(const PrintableViaPrintTo& x, ::std::ostream* os) {
*os << "PrintableViaPrintTo: " << x.value;
}
// A user-defined printable class template in a user-chosen namespace.
template <typename T>
class PrintableViaPrintToTemplate {
public:
explicit PrintableViaPrintToTemplate(const T& value) : value_(value) {}
const T& value() const { return value_; }
private:
T value_;
};
template <typename T>
void PrintTo(const PrintableViaPrintToTemplate<T>& x, ::std::ostream* os) {
*os << "PrintableViaPrintToTemplate: " << x.value();
}
// A user-defined streamable class template in a user namespace.
template <typename T>
class StreamableTemplateInFoo {
public:
StreamableTemplateInFoo() : value_() {}
const T& value() const { return value_; }
private:
T value_;
};
template <typename T>
inline ::std::ostream& operator<<(::std::ostream& os,
const StreamableTemplateInFoo<T>& x) {
return os << "StreamableTemplateInFoo: " << x.value();
}
} // namespace foo
namespace testing {
namespace gmock_printers_test {
using ::std::deque;
using ::std::list;
using ::std::make_pair;
using ::std::map;
using ::std::multimap;
using ::std::multiset;
using ::std::pair;
using ::std::set;
using ::std::tr1::make_tuple;
using ::std::tr1::tuple;
using ::std::vector;
using ::testing::ElementsAre;
using ::testing::StartsWith;
using ::testing::internal::Strings;
using ::testing::internal::UniversalTersePrint;
using ::testing::internal::UniversalTersePrintTupleFieldsToStrings;
using ::testing::internal::UniversalPrinter;
using ::testing::internal::string;
#if GTEST_OS_WINDOWS
// MSVC defines the following classes in the ::stdext namespace while
// gcc defines them in the :: namespace. Note that they are not part
// of the C++ standard.
using ::stdext::hash_map;
using ::stdext::hash_set;
using ::stdext::hash_multimap;
using ::stdext::hash_multiset;
#endif // GTEST_OS_WINDOWS
// Prints a value to a string using the universal value printer. This
// is a helper for testing UniversalPrinter<T>::Print() for various types.
template <typename T>
string Print(const T& value) {
::std::stringstream ss;
UniversalPrinter<T>::Print(value, &ss);
return ss.str();
}
// Prints a value passed by reference to a string, using the universal
// value printer. This is a helper for testing
// UniversalPrinter<T&>::Print() for various types.
template <typename T>
string PrintByRef(const T& value) {
::std::stringstream ss;
UniversalPrinter<T&>::Print(value, &ss);
return ss.str();
}
// Tests printing various char types.
// char.
TEST(PrintCharTest, PlainChar) {
EXPECT_EQ("'\\0'", Print('\0'));
EXPECT_EQ("'\\'' (39)", Print('\''));
EXPECT_EQ("'\"' (34)", Print('"'));
EXPECT_EQ("'\\?' (63)", Print('\?'));
EXPECT_EQ("'\\\\' (92)", Print('\\'));
EXPECT_EQ("'\\a' (7)", Print('\a'));
EXPECT_EQ("'\\b' (8)", Print('\b'));
EXPECT_EQ("'\\f' (12)", Print('\f'));
EXPECT_EQ("'\\n' (10)", Print('\n'));
EXPECT_EQ("'\\r' (13)", Print('\r'));
EXPECT_EQ("'\\t' (9)", Print('\t'));
EXPECT_EQ("'\\v' (11)", Print('\v'));
EXPECT_EQ("'\\x7F' (127)", Print('\x7F'));
EXPECT_EQ("'\\xFF' (255)", Print('\xFF'));
EXPECT_EQ("' ' (32)", Print(' '));
EXPECT_EQ("'a' (97)", Print('a'));
}
// signed char.
TEST(PrintCharTest, SignedChar) {
EXPECT_EQ("'\\0'", Print(static_cast<signed char>('\0')));
EXPECT_EQ("'\\xCE' (-50)",
Print(static_cast<signed char>(-50)));
}
// unsigned char.
TEST(PrintCharTest, UnsignedChar) {
EXPECT_EQ("'\\0'", Print(static_cast<unsigned char>('\0')));
EXPECT_EQ("'b' (98)",
Print(static_cast<unsigned char>('b')));
}
// Tests printing other simple, built-in types.
// bool.
TEST(PrintBuiltInTypeTest, Bool) {
EXPECT_EQ("false", Print(false));
EXPECT_EQ("true", Print(true));
}
// wchar_t.
TEST(PrintBuiltInTypeTest, Wchar_t) {
EXPECT_EQ("L'\\0'", Print(L'\0'));
EXPECT_EQ("L'\\'' (39)", Print(L'\''));
EXPECT_EQ("L'\"' (34)", Print(L'"'));
EXPECT_EQ("L'\\?' (63)", Print(L'\?'));
EXPECT_EQ("L'\\\\' (92)", Print(L'\\'));
EXPECT_EQ("L'\\a' (7)", Print(L'\a'));
EXPECT_EQ("L'\\b' (8)", Print(L'\b'));
EXPECT_EQ("L'\\f' (12)", Print(L'\f'));
EXPECT_EQ("L'\\n' (10)", Print(L'\n'));
EXPECT_EQ("L'\\r' (13)", Print(L'\r'));
EXPECT_EQ("L'\\t' (9)", Print(L'\t'));
EXPECT_EQ("L'\\v' (11)", Print(L'\v'));
EXPECT_EQ("L'\\x7F' (127)", Print(L'\x7F'));
EXPECT_EQ("L'\\xFF' (255)", Print(L'\xFF'));
EXPECT_EQ("L' ' (32)", Print(L' '));
EXPECT_EQ("L'a' (97)", Print(L'a'));
EXPECT_EQ("L'\\x576' (1398)", Print(L'\x576'));
EXPECT_EQ("L'\\xC74D' (51021)", Print(L'\xC74D'));
}
// Test that Int64 provides more storage than wchar_t.
TEST(PrintTypeSizeTest, Wchar_t) {
EXPECT_LT(sizeof(wchar_t), sizeof(testing::internal::Int64));
}
// Various integer types.
TEST(PrintBuiltInTypeTest, Integer) {
EXPECT_EQ("'\\xFF' (255)", Print(static_cast<unsigned char>(255))); // uint8
EXPECT_EQ("'\\x80' (-128)", Print(static_cast<signed char>(-128))); // int8
EXPECT_EQ("65535", Print(USHRT_MAX)); // uint16
EXPECT_EQ("-32768", Print(SHRT_MIN)); // int16
EXPECT_EQ("4294967295", Print(UINT_MAX)); // uint32
EXPECT_EQ("-2147483648", Print(INT_MIN)); // int32
EXPECT_EQ("18446744073709551615",
Print(static_cast<testing::internal::UInt64>(-1))); // uint64
EXPECT_EQ("-9223372036854775808",
Print(static_cast<testing::internal::Int64>(1) << 63)); // int64
}
// Size types.
TEST(PrintBuiltInTypeTest, Size_t) {
EXPECT_EQ("1", Print(sizeof('a'))); // size_t.
#if !GTEST_OS_WINDOWS
// Windows has no ssize_t type.
EXPECT_EQ("-2", Print(static_cast<ssize_t>(-2))); // ssize_t.
#endif // !GTEST_OS_WINDOWS
}
// Floating-points.
TEST(PrintBuiltInTypeTest, FloatingPoints) {
EXPECT_EQ("1.5", Print(1.5f)); // float
EXPECT_EQ("-2.5", Print(-2.5)); // double
}
// Since ::std::stringstream::operator<<(const void *) formats the pointer
// output differently with different compilers, we have to create the expected
// output first and use it as our expectation.
static string PrintPointer(const void *p) {
::std::stringstream expected_result_stream;
expected_result_stream << p;
return expected_result_stream.str();
}
// Tests printing C strings.
// const char*.
TEST(PrintCStringTest, Const) {
const char* p = "World";
EXPECT_EQ(PrintPointer(p) + " pointing to \"World\"", Print(p));
}
// char*.
TEST(PrintCStringTest, NonConst) {
char p[] = "Hi";
EXPECT_EQ(PrintPointer(p) + " pointing to \"Hi\"",
Print(static_cast<char*>(p)));
}
// NULL C string.
TEST(PrintCStringTest, Null) {
const char* p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// Tests that C strings are escaped properly.
TEST(PrintCStringTest, EscapesProperly) {
const char* p = "'\"\?\\\a\b\f\n\r\t\v\x7F\xFF a";
EXPECT_EQ(PrintPointer(p) + " pointing to \"'\\\"\\?\\\\\\a\\b\\f"
"\\n\\r\\t\\v\\x7F\\xFF a\"",
Print(p));
}
// MSVC compiler can be configured to define whar_t as a typedef
// of unsigned short. Defining an overload for const wchar_t* in that case
// would cause pointers to unsigned shorts be printed as wide strings,
// possibly accessing more memory than intended and causing invalid
// memory accesses. MSVC defines _NATIVE_WCHAR_T_DEFINED symbol when
// wchar_t is implemented as a native type.
#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
// const wchar_t*.
TEST(PrintWideCStringTest, Const) {
const wchar_t* p = L"World";
EXPECT_EQ(PrintPointer(p) + " pointing to L\"World\"", Print(p));
}
// wchar_t*.
TEST(PrintWideCStringTest, NonConst) {
wchar_t p[] = L"Hi";
EXPECT_EQ(PrintPointer(p) + " pointing to L\"Hi\"",
Print(static_cast<wchar_t*>(p)));
}
// NULL wide C string.
TEST(PrintWideCStringTest, Null) {
const wchar_t* p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// Tests that wide C strings are escaped properly.
TEST(PrintWideCStringTest, EscapesProperly) {
const wchar_t* p = L"'\"\?\\\a\b\f\n\r\t\v\xD3\x576\x8D3\xC74D a";
EXPECT_EQ(PrintPointer(p) + " pointing to L\"'\\\"\\?\\\\\\a\\b\\f"
"\\n\\r\\t\\v\\xD3\\x576\\x8D3\\xC74D a\"",
Print(p));
}
#endif // native wchar_t
// Tests printing pointers to other char types.
// signed char*.
TEST(PrintCharPointerTest, SignedChar) {
signed char* p = reinterpret_cast<signed char*>(0x1234);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// const signed char*.
TEST(PrintCharPointerTest, ConstSignedChar) {
signed char* p = reinterpret_cast<signed char*>(0x1234);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// unsigned char*.
TEST(PrintCharPointerTest, UnsignedChar) {
unsigned char* p = reinterpret_cast<unsigned char*>(0x1234);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// const unsigned char*.
TEST(PrintCharPointerTest, ConstUnsignedChar) {
const unsigned char* p = reinterpret_cast<const unsigned char*>(0x1234);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// Tests printing pointers to simple, built-in types.
// bool*.
TEST(PrintPointerToBuiltInTypeTest, Bool) {
bool* p = reinterpret_cast<bool*>(0xABCD);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// void*.
TEST(PrintPointerToBuiltInTypeTest, Void) {
void* p = reinterpret_cast<void*>(0xABCD);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// const void*.
TEST(PrintPointerToBuiltInTypeTest, ConstVoid) {
const void* p = reinterpret_cast<const void*>(0xABCD);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// Tests printing pointers to pointers.
TEST(PrintPointerToPointerTest, IntPointerPointer) {
int** p = reinterpret_cast<int**>(0xABCD);
EXPECT_EQ(PrintPointer(p), Print(p));
p = NULL;
EXPECT_EQ("NULL", Print(p));
}
// Tests printing (non-member) function pointers.
void MyFunction(int n) {}
TEST(PrintPointerTest, NonMemberFunctionPointer) {
EXPECT_EQ(PrintPointer(reinterpret_cast<const void*>(&MyFunction)),
Print(&MyFunction));
int (*p)(bool) = NULL; // NOLINT
EXPECT_EQ("NULL", Print(p));
}
// Tests printing member variable pointers. Although they are called
// pointers, they don't point to a location in the address space.
// Their representation is implementation-defined. Thus they will be
// printed as raw bytes.
struct Foo {
public:
virtual ~Foo() {}
int MyMethod(char x) { return x + 1; }
virtual char MyVirtualMethod(int n) { return 'a'; }
int value;
};
TEST(PrintPointerTest, MemberVariablePointer) {
EXPECT_THAT(Print(&Foo::value),
StartsWith(Print(sizeof(&Foo::value)) + "-byte object "));
int (Foo::*p) = NULL; // NOLINT
EXPECT_THAT(Print(p),
StartsWith(Print(sizeof(p)) + "-byte object "));
}
// Tests printing member function pointers. Although they are called
// pointers, they don't point to a location in the address space.
// Their representation is implementation-defined. Thus they will be
// printed as raw bytes.
TEST(PrintPointerTest, MemberFunctionPointer) {
EXPECT_THAT(Print(&Foo::MyMethod),
StartsWith(Print(sizeof(&Foo::MyMethod)) + "-byte object "));
EXPECT_THAT(Print(&Foo::MyVirtualMethod),
StartsWith(Print(sizeof((&Foo::MyVirtualMethod)))
+ "-byte object "));
int (Foo::*p)(char) = NULL; // NOLINT
EXPECT_THAT(Print(p),
StartsWith(Print(sizeof(p)) + "-byte object "));
}
// Tests printing C arrays.
// One-dimensional array.
void ArrayHelper1(int (&a)[5]) { // NOLINT
EXPECT_EQ("{ 1, 2, 3, 4, 5 }", Print(a));
}
TEST(PrintArrayTest, OneDimensionalArray) {
int a[5] = { 1, 2, 3, 4, 5 };
ArrayHelper1(a);
}
// Two-dimensional array.
void ArrayHelper2(int (&a)[2][5]) { // NOLINT
EXPECT_EQ("{ { 1, 2, 3, 4, 5 }, { 6, 7, 8, 9, 0 } }", Print(a));
}
TEST(PrintArrayTest, TwoDimensionalArray) {
int a[2][5] = {
{ 1, 2, 3, 4, 5 },
{ 6, 7, 8, 9, 0 }
};
ArrayHelper2(a);
}
// Array of const elements.
void ArrayHelper3(const bool (&a)[1]) { // NOLINT
EXPECT_EQ("{ false }", Print(a));
}
TEST(PrintArrayTest, ConstArray) {
const bool a[1] = { false };
ArrayHelper3(a);
}
// Char array.
void ArrayHelper4(char (&a)[3]) { // NOLINT
EXPECT_EQ(PrintPointer(a) + " pointing to \"Hi\"", Print(a));
}
TEST(PrintArrayTest, CharArray) {
char a[3] = "Hi";
ArrayHelper4(a);
}
// Const char array.
void ArrayHelper5(const char (&a)[3]) { // NOLINT
EXPECT_EQ(Print(a), PrintPointer(a) + " pointing to \"Hi\"");
}
TEST(PrintArrayTest, ConstCharArray) {
const char a[3] = "Hi";
ArrayHelper5(a);
}
// Array of objects.
TEST(PrintArrayTest, ObjectArray) {
string a[3] = { "Hi", "Hello", "Ni hao" };
EXPECT_EQ("{ \"Hi\", \"Hello\", \"Ni hao\" }", Print(a));
}
// Array with many elements.
TEST(PrintArrayTest, BigArray) {
int a[100] = { 1, 2, 3 };
EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, ..., 0, 0, 0, 0, 0, 0, 0, 0 }",
Print(a));
}
// Tests printing ::string and ::std::string.
#if GTEST_HAS_GLOBAL_STRING
// ::string.
TEST(PrintStringTest, StringInGlobalNamespace) {
const char s[] = "'\"\?\\\a\b\f\n\0\r\t\v\x7F\xFF a";
const ::string str(s, sizeof(s));
EXPECT_EQ("\"'\\\"\\?\\\\\\a\\b\\f\\n\\0\\r\\t\\v\\x7F\\xFF a\\0\"",
Print(str));
}
#endif // GTEST_HAS_GLOBAL_STRING
#if GTEST_HAS_STD_STRING
// ::std::string.
TEST(PrintStringTest, StringInStdNamespace) {
const char s[] = "'\"\?\\\a\b\f\n\0\r\t\v\x7F\xFF a";
const ::std::string str(s, sizeof(s));
EXPECT_EQ("\"'\\\"\\?\\\\\\a\\b\\f\\n\\0\\r\\t\\v\\x7F\\xFF a\\0\"",
Print(str));
}
#endif // GTEST_HAS_STD_STRING
// Tests printing ::wstring and ::std::wstring.
#if GTEST_HAS_GLOBAL_WSTRING
// ::wstring.
TEST(PrintWideStringTest, StringInGlobalNamespace) {
const wchar_t s[] = L"'\"\?\\\a\b\f\n\0\r\t\v\xD3\x576\x8D3\xC74D a";
const ::wstring str(s, sizeof(s)/sizeof(wchar_t));
EXPECT_EQ("L\"'\\\"\\?\\\\\\a\\b\\f\\n\\0\\r\\t\\v"
"\\xD3\\x576\\x8D3\\xC74D a\\0\"",
Print(str));
}
#endif // GTEST_HAS_GLOBAL_WSTRING
#if GTEST_HAS_STD_WSTRING
// ::std::wstring.
TEST(PrintWideStringTest, StringInStdNamespace) {
const wchar_t s[] = L"'\"\?\\\a\b\f\n\0\r\t\v\xD3\x576\x8D3\xC74D a";
const ::std::wstring str(s, sizeof(s)/sizeof(wchar_t));
EXPECT_EQ("L\"'\\\"\\?\\\\\\a\\b\\f\\n\\0\\r\\t\\v"
"\\xD3\\x576\\x8D3\\xC74D a\\0\"",
Print(str));
}
#endif // GTEST_HAS_STD_WSTRING
// Tests printing types that support generic streaming (i.e. streaming
// to std::basic_ostream<Char, CharTraits> for any valid Char and
// CharTraits types).
// Tests printing a non-template type that supports generic streaming.
class AllowsGenericStreaming {};
template <typename Char, typename CharTraits>
std::basic_ostream<Char, CharTraits>& operator<<(
std::basic_ostream<Char, CharTraits>& os,
const AllowsGenericStreaming& a) {
return os << "AllowsGenericStreaming";
}
TEST(PrintTypeWithGenericStreamingTest, NonTemplateType) {
AllowsGenericStreaming a;
EXPECT_EQ("AllowsGenericStreaming", Print(a));
}
// Tests printing a template type that supports generic streaming.
template <typename T>
class AllowsGenericStreamingTemplate {};
template <typename Char, typename CharTraits, typename T>
std::basic_ostream<Char, CharTraits>& operator<<(
std::basic_ostream<Char, CharTraits>& os,
const AllowsGenericStreamingTemplate<T>& a) {
return os << "AllowsGenericStreamingTemplate";
}
TEST(PrintTypeWithGenericStreamingTest, TemplateType) {
AllowsGenericStreamingTemplate<int> a;
EXPECT_EQ("AllowsGenericStreamingTemplate", Print(a));
}
// Tests printing a type that supports generic streaming and can be
// implicitly converted to another printable type.
template <typename T>
class AllowsGenericStreamingAndImplicitConversionTemplate {
public:
operator bool() const { return false; }
};
template <typename Char, typename CharTraits, typename T>
std::basic_ostream<Char, CharTraits>& operator<<(
std::basic_ostream<Char, CharTraits>& os,
const AllowsGenericStreamingAndImplicitConversionTemplate<T>& a) {
return os << "AllowsGenericStreamingAndImplicitConversionTemplate";
}
TEST(PrintTypeWithGenericStreamingTest, TypeImplicitlyConvertible) {
AllowsGenericStreamingAndImplicitConversionTemplate<int> a;
EXPECT_EQ("AllowsGenericStreamingAndImplicitConversionTemplate", Print(a));
}
// Tests printing STL containers.
TEST(PrintStlContainerTest, EmptyDeque) {
deque<char> empty;
EXPECT_EQ("{}", Print(empty));
}
TEST(PrintStlContainerTest, NonEmptyDeque) {
deque<int> non_empty;
non_empty.push_back(1);
non_empty.push_back(3);
EXPECT_EQ("{ 1, 3 }", Print(non_empty));
}
#if GMOCK_HAS_HASH_MAP_
TEST(PrintStlContainerTest, OneElementHashMap) {
hash_map<int, char> map1;
map1[1] = 'a';
EXPECT_EQ("{ (1, 'a' (97)) }", Print(map1));
}
TEST(PrintStlContainerTest, HashMultiMap) {
hash_multimap<int, bool> map1;
map1.insert(make_pair(5, true));
map1.insert(make_pair(5, false));
// Elements of hash_multimap can be printed in any order.
const string result = Print(map1);
EXPECT_TRUE(result == "{ (5, true), (5, false) }" ||
result == "{ (5, false), (5, true) }")
<< " where Print(map1) returns \"" << result << "\".";
}
#endif // GMOCK_HAS_HASH_MAP_
#if GMOCK_HAS_HASH_SET_
TEST(PrintStlContainerTest, HashSet) {
hash_set<string> set1;
set1.insert("hello");
EXPECT_EQ("{ \"hello\" }", Print(set1));
}
TEST(PrintStlContainerTest, HashMultiSet) {
const int kSize = 5;
int a[kSize] = { 1, 1, 2, 5, 1 };
hash_multiset<int> set1(a, a + kSize);
// Elements of hash_multiset can be printed in any order.
const string result = Print(set1);
const string expected_pattern = "{ d, d, d, d, d }"; // d means a digit.
// Verifies the result matches the expected pattern; also extracts
// the numbers in the result.
ASSERT_EQ(expected_pattern.length(), result.length());
std::vector<int> numbers;
for (size_t i = 0; i != result.length(); i++) {
if (expected_pattern[i] == 'd') {
ASSERT_TRUE(isdigit(result[i]));
numbers.push_back(result[i] - '0');
} else {
EXPECT_EQ(expected_pattern[i], result[i]) << " where result is "
<< result;
}
}
// Makes sure the result contains the right numbers.
std::sort(numbers.begin(), numbers.end());
std::sort(a, a + kSize);
EXPECT_TRUE(std::equal(a, a + kSize, numbers.begin()));
}
#endif // GMOCK_HAS_HASH_SET_
TEST(PrintStlContainerTest, List) {
const char* a[] = {
"hello",
"world"
};
const list<string> strings(a, a + 2);
EXPECT_EQ("{ \"hello\", \"world\" }", Print(strings));
}
TEST(PrintStlContainerTest, Map) {
map<int, bool> map1;
map1[1] = true;
map1[5] = false;
map1[3] = true;
EXPECT_EQ("{ (1, true), (3, true), (5, false) }", Print(map1));
}
TEST(PrintStlContainerTest, MultiMap) {
multimap<bool, int> map1;
map1.insert(make_pair(true, 0));
map1.insert(make_pair(true, 1));
map1.insert(make_pair(false, 2));
EXPECT_EQ("{ (false, 2), (true, 0), (true, 1) }", Print(map1));
}
TEST(PrintStlContainerTest, Set) {
const unsigned int a[] = { 3, 0, 5 };
set<unsigned int> set1(a, a + 3);
EXPECT_EQ("{ 0, 3, 5 }", Print(set1));
}
TEST(PrintStlContainerTest, MultiSet) {
const int a[] = { 1, 1, 2, 5, 1 };
multiset<int> set1(a, a + 5);
EXPECT_EQ("{ 1, 1, 1, 2, 5 }", Print(set1));
}
TEST(PrintStlContainerTest, Pair) {
pair<const bool, int> p(true, 5);
EXPECT_EQ("(true, 5)", Print(p));
}
TEST(PrintStlContainerTest, Vector) {
vector<int> v;
v.push_back(1);
v.push_back(2);
EXPECT_EQ("{ 1, 2 }", Print(v));
}
TEST(PrintStlContainerTest, LongSequence) {
const int a[100] = { 1, 2, 3 };
const vector<int> v(a, a + 100);
EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "
"0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ... }", Print(v));
}
TEST(PrintStlContainerTest, NestedContainer) {
const int a1[] = { 1, 2 };
const int a2[] = { 3, 4, 5 };
const list<int> l1(a1, a1 + 2);
const list<int> l2(a2, a2 + 3);
vector<list<int> > v;
v.push_back(l1);
v.push_back(l2);
EXPECT_EQ("{ { 1, 2 }, { 3, 4, 5 } }", Print(v));
}
// Tests printing tuples.
// Tuples of various arities.
TEST(PrintTupleTest, VariousSizes) {
tuple<> t0;
EXPECT_EQ("()", Print(t0));
tuple<int> t1(5);
EXPECT_EQ("(5)", Print(t1));
tuple<char, bool> t2('a', true);
EXPECT_EQ("('a' (97), true)", Print(t2));
tuple<bool, int, int> t3(false, 2, 3);
EXPECT_EQ("(false, 2, 3)", Print(t3));
tuple<bool, int, int, int> t4(false, 2, 3, 4);
EXPECT_EQ("(false, 2, 3, 4)", Print(t4));
tuple<bool, int, int, int, bool> t5(false, 2, 3, 4, true);
EXPECT_EQ("(false, 2, 3, 4, true)", Print(t5));
tuple<bool, int, int, int, bool, int> t6(false, 2, 3, 4, true, 6);
EXPECT_EQ("(false, 2, 3, 4, true, 6)", Print(t6));
tuple<bool, int, int, int, bool, int, int> t7(false, 2, 3, 4, true, 6, 7);
EXPECT_EQ("(false, 2, 3, 4, true, 6, 7)", Print(t7));
tuple<bool, int, int, int, bool, int, int, bool> t8(
false, 2, 3, 4, true, 6, 7, true);
EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true)", Print(t8));
tuple<bool, int, int, int, bool, int, int, bool, int> t9(
false, 2, 3, 4, true, 6, 7, true, 9);
EXPECT_EQ("(false, 2, 3, 4, true, 6, 7, true, 9)", Print(t9));
const char* const str = "8";
tuple<bool, char, short, testing::internal::Int32, // NOLINT
testing::internal::Int64, float, double, const char*, void*, string>
t10(false, 'a', 3, 4, 5, 6.5F, 7.5, str, NULL, "10");
EXPECT_EQ("(false, 'a' (97), 3, 4, 5, 6.5, 7.5, " + PrintPointer(str) +
" pointing to \"8\", NULL, \"10\")",
Print(t10));
}
// Nested tuples.
TEST(PrintTupleTest, NestedTuple) {
tuple<tuple<int, double>, char> nested(make_tuple(5, 9.5), 'a');
EXPECT_EQ("((5, 9.5), 'a' (97))", Print(nested));
}
// Tests printing user-defined unprintable types.
// Unprintable types in the global namespace.
TEST(PrintUnprintableTypeTest, InGlobalNamespace) {
EXPECT_EQ("1-byte object <00>",
Print(UnprintableTemplateInGlobal<bool>()));
}
// Unprintable types in a user namespace.
TEST(PrintUnprintableTypeTest, InUserNamespace) {
EXPECT_EQ("16-byte object <EF12 0000 34AB 0000 0000 0000 0000 0000>",
Print(::foo::UnprintableInFoo()));
}
// Unprintable types are that too big to be printed completely.
struct Big {
Big() { memset(array, 0, sizeof(array)); }
char array[257];
};
TEST(PrintUnpritableTypeTest, BigObject) {
EXPECT_EQ("257-byte object <0000 0000 0000 0000 0000 0000 "
"0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 "
"0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 "
"0000 0000 0000 0000 0000 0000 ... 0000 0000 0000 "
"0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 "
"0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 "
"0000 0000 0000 0000 0000 0000 0000 0000 00>",
Print(Big()));
}
// Tests printing user-defined streamable types.
// Streamable types in the global namespace.
TEST(PrintStreamableTypeTest, InGlobalNamespace) {
EXPECT_EQ("StreamableInGlobal",
Print(StreamableInGlobal()));
}
// Printable template types in a user namespace.
TEST(PrintStreamableTypeTest, TemplateTypeInUserNamespace) {
EXPECT_EQ("StreamableTemplateInFoo: 0",
Print(::foo::StreamableTemplateInFoo<int>()));
}
// Tests printing user-defined types that have a PrintTo() function.
TEST(PrintPrintableTypeTest, InUserNamespace) {
EXPECT_EQ("PrintableViaPrintTo: 0",
Print(::foo::PrintableViaPrintTo()));
}
// Tests printing user-defined class template that have a PrintTo() function.
TEST(PrintPrintableTypeTest, TemplateInUserNamespace) {
EXPECT_EQ("PrintableViaPrintToTemplate: 5",
Print(::foo::PrintableViaPrintToTemplate<int>(5)));
}
#if GMOCK_HAS_PROTOBUF_
// Tests printing a protocol message.
TEST(PrintProtocolMessageTest, PrintsShortDebugString) {
testing::internal::TestMessage msg;
msg.set_member("yes");
EXPECT_EQ("<member:\"yes\">", Print(msg));
}
// Tests printing a proto2 message.
TEST(PrintProto2MessageTest, PrintsShortDebugString) {
testing::internal::FooMessage msg;
msg.set_int_field(2);
EXPECT_PRED2(RE::FullMatch, Print(msg),
"<int_field:\\s*2\\s*>");
}
#endif // GMOCK_HAS_PROTOBUF_
// Tests that the universal printer prints both the address and the
// value of a reference.
TEST(PrintReferenceTest, PrintsAddressAndValue) {
int n = 5;
EXPECT_EQ("@" + PrintPointer(&n) + " 5", PrintByRef(n));
int a[2][3] = {
{ 0, 1, 2 },
{ 3, 4, 5 }
};
EXPECT_EQ("@" + PrintPointer(a) + " { { 0, 1, 2 }, { 3, 4, 5 } }",
PrintByRef(a));
const ::foo::UnprintableInFoo x;
EXPECT_EQ("@" + PrintPointer(&x) + " 16-byte object "
"<EF12 0000 34AB 0000 0000 0000 0000 0000>",
PrintByRef(x));
}
// Tests that the universal printer prints a function pointer passed by
// reference.
TEST(PrintReferenceTest, HandlesFunctionPointer) {
void (*fp)(int n) = &MyFunction;
const string fp_pointer_string =
PrintPointer(reinterpret_cast<const void*>(&fp));
const string fp_string = PrintPointer(reinterpret_cast<const void*>(fp));
EXPECT_EQ("@" + fp_pointer_string + " " + fp_string,
PrintByRef(fp));
}
// Tests that the universal printer prints a member function pointer
// passed by reference.
TEST(PrintReferenceTest, HandlesMemberFunctionPointer) {
int (Foo::*p)(char ch) = &Foo::MyMethod;
EXPECT_THAT(PrintByRef(p),
StartsWith("@" + PrintPointer(reinterpret_cast<const void*>(&p))
+ " " + Print(sizeof(p)) + "-byte object "));
char (Foo::*p2)(int n) = &Foo::MyVirtualMethod;
EXPECT_THAT(PrintByRef(p2),
StartsWith("@" + PrintPointer(reinterpret_cast<const void*>(&p2))
+ " " + Print(sizeof(p2)) + "-byte object "));
}
// Tests that the universal printer prints a member variable pointer
// passed by reference.
TEST(PrintReferenceTest, HandlesMemberVariablePointer) {
int (Foo::*p) = &Foo::value; // NOLINT
EXPECT_THAT(PrintByRef(p),
StartsWith("@" + PrintPointer(&p)
+ " " + Print(sizeof(p)) + "-byte object "));
}
TEST(PrintToStringTest, WorksForNonReference) {
EXPECT_EQ("123", UniversalPrinter<int>::PrintToString(123));
}
TEST(PrintToStringTest, WorksForReference) {
int n = 123;
EXPECT_EQ("@" + PrintPointer(&n) + " 123",
UniversalPrinter<const int&>::PrintToString(n));
}
TEST(UniversalTersePrintTest, WorksForNonReference) {
::std::stringstream ss;
UniversalTersePrint(123, &ss);
EXPECT_EQ("123", ss.str());
}
TEST(UniversalTersePrintTest, WorksForReference) {
const int& n = 123;
::std::stringstream ss;
UniversalTersePrint(n, &ss);
EXPECT_EQ("123", ss.str());
}
TEST(UniversalTersePrintTest, WorksForCString) {
const char* s1 = "abc";
::std::stringstream ss1;
UniversalTersePrint(s1, &ss1);
EXPECT_EQ("\"abc\"", ss1.str());
char* s2 = const_cast<char*>(s1);
::std::stringstream ss2;
UniversalTersePrint(s2, &ss2);
EXPECT_EQ("\"abc\"", ss2.str());
const char* s3 = NULL;
::std::stringstream ss3;
UniversalTersePrint(s3, &ss3);
EXPECT_EQ("NULL", ss3.str());
}
TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsEmptyTuple) {
EXPECT_THAT(UniversalTersePrintTupleFieldsToStrings(make_tuple()),
ElementsAre());
}
TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsOneTuple) {
EXPECT_THAT(UniversalTersePrintTupleFieldsToStrings(make_tuple(1)),
ElementsAre("1"));
}
TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsTwoTuple) {
EXPECT_THAT(UniversalTersePrintTupleFieldsToStrings(make_tuple(1, 'a')),
ElementsAre("1", "'a' (97)"));
}
TEST(UniversalTersePrintTupleFieldsToStringsTest, PrintsTersely) {
const int n = 1;
EXPECT_THAT(UniversalTersePrintTupleFieldsToStrings(
tuple<const int&, const char*>(n, "a")),
ElementsAre("1", "\"a\""));
}
} // namespace gmock_printers_test
} // namespace testing
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