media/webrtc/trunk/testing/gmock/test/gmock-generated-actions_test.cc

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  30 // Author: wan@google.com (Zhanyong Wan)
  31
  32 // Google Mock - a framework for writing C++ mock classes.
  33 //
  34 // This file tests the built-in actions generated by a script.
  35
  36 #include "gmock/gmock-generated-actions.h"
  37
  38 #include <functional>
  39 #include <sstream>
  40 #include <string>
  41 #include "gmock/gmock.h"
  42 #include "gtest/gtest.h"
  43
  44 namespace testing {
  45 namespace gmock_generated_actions_test {
  46
  47 using ::std::plus;
  48 using ::std::string;
  49 using ::std::tr1::get;
  50 using ::std::tr1::make_tuple;
  51 using ::std::tr1::tuple;
  52 using ::std::tr1::tuple_element;
  53 using testing::_;
  54 using testing::Action;
  55 using testing::ActionInterface;
  56 using testing::ByRef;
  57 using testing::DoAll;
  58 using testing::Invoke;
  59 using testing::Return;
  60 using testing::ReturnNew;
  61 using testing::SetArgPointee;
  62 using testing::StaticAssertTypeEq;
  63 using testing::Unused;
  64 using testing::WithArgs;
  65
  66 // For suppressing compiler warnings on conversion possibly losing precision.
  67 inline short Short(short n) { return n; }  // NOLINT
  68 inline char Char(char ch) { return ch; }
  69
  70 // Sample functions and functors for testing various actions.
  71 int Nullary() { return 1; }
  72
  73 class NullaryFunctor {
  74  public:
  75   int operator()() { return 2; }
  76 };
  77
  78 bool g_done = false;
  79
  80 bool Unary(int x) { return x < 0; }
  81
  82 const char* Plus1(const char* s) { return s + 1; }
  83
  84 bool ByConstRef(const string& s) { return s == "Hi"; }
  85
  86 const double g_double = 0;
  87 bool ReferencesGlobalDouble(const double& x) { return &x == &g_double; }
  88
  89 string ByNonConstRef(string& s) { return s += "+"; }  // NOLINT
  90
  91 struct UnaryFunctor {
  92   int operator()(bool x) { return x ? 1 : -1; }
  93 };
  94
  95 const char* Binary(const char* input, short n) { return input + n; }  // NOLINT
  96
  97 void VoidBinary(int, char) { g_done = true; }
  98
  99 int Ternary(int x, char y, short z) { return x + y + z; }  // NOLINT
 100
 101 void VoidTernary(int, char, bool) { g_done = true; }
 102
 103 int SumOf4(int a, int b, int c, int d) { return a + b + c + d; }
 104
 105 string Concat4(const char* s1, const char* s2, const char* s3,
 106                const char* s4) {
 107   return string(s1) + s2 + s3 + s4;
 108 }
 109
 110 int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; }
 111
 112 struct SumOf5Functor {
 113   int operator()(int a, int b, int c, int d, int e) {
 114     return a + b + c + d + e;
 115   }
 116 };
 117
 118 string Concat5(const char* s1, const char* s2, const char* s3,
 119                const char* s4, const char* s5) {
 120   return string(s1) + s2 + s3 + s4 + s5;
 121 }
 122
 123 int SumOf6(int a, int b, int c, int d, int e, int f) {
 124   return a + b + c + d + e + f;
 125 }
 126
 127 struct SumOf6Functor {
 128   int operator()(int a, int b, int c, int d, int e, int f) {
 129     return a + b + c + d + e + f;
 130   }
 131 };
 132
 133 string Concat6(const char* s1, const char* s2, const char* s3,
 134                const char* s4, const char* s5, const char* s6) {
 135   return string(s1) + s2 + s3 + s4 + s5 + s6;
 136 }
 137
 138 string Concat7(const char* s1, const char* s2, const char* s3,
 139                const char* s4, const char* s5, const char* s6,
 140                const char* s7) {
 141   return string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
 142 }
 143
 144 string Concat8(const char* s1, const char* s2, const char* s3,
 145                const char* s4, const char* s5, const char* s6,
 146                const char* s7, const char* s8) {
 147   return string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
 148 }
 149
 150 string Concat9(const char* s1, const char* s2, const char* s3,
 151                const char* s4, const char* s5, const char* s6,
 152                const char* s7, const char* s8, const char* s9) {
 153   return string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
 154 }
 155
 156 string Concat10(const char* s1, const char* s2, const char* s3,
 157                 const char* s4, const char* s5, const char* s6,
 158                 const char* s7, const char* s8, const char* s9,
 159                 const char* s10) {
 160   return string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
 161 }
 162
 163 // A helper that turns the type of a C-string literal from const
 164 // char[N] to const char*.
 165 inline const char* CharPtr(const char* s) { return s; }
 166
 167 // Tests InvokeArgument<N>(...).
 168
 169 // Tests using InvokeArgument with a nullary function.
 170 TEST(InvokeArgumentTest, Function0) {
 171   Action<int(int, int(*)())> a = InvokeArgument<1>();  // NOLINT
 172   EXPECT_EQ(1, a.Perform(make_tuple(2, &Nullary)));
 173 }
 174
 175 // Tests using InvokeArgument with a unary function.
 176 TEST(InvokeArgumentTest, Functor1) {
 177   Action<int(UnaryFunctor)> a = InvokeArgument<0>(true);  // NOLINT
 178   EXPECT_EQ(1, a.Perform(make_tuple(UnaryFunctor())));
 179 }
 180
 181 // Tests using InvokeArgument with a 5-ary function.
 182 TEST(InvokeArgumentTest, Function5) {
 183   Action<int(int(*)(int, int, int, int, int))> a =  // NOLINT
 184       InvokeArgument<0>(10000, 2000, 300, 40, 5);
 185   EXPECT_EQ(12345, a.Perform(make_tuple(&SumOf5)));
 186 }
 187
 188 // Tests using InvokeArgument with a 5-ary functor.
 189 TEST(InvokeArgumentTest, Functor5) {
 190   Action<int(SumOf5Functor)> a =  // NOLINT
 191       InvokeArgument<0>(10000, 2000, 300, 40, 5);
 192   EXPECT_EQ(12345, a.Perform(make_tuple(SumOf5Functor())));
 193 }
 194
 195 // Tests using InvokeArgument with a 6-ary function.
 196 TEST(InvokeArgumentTest, Function6) {
 197   Action<int(int(*)(int, int, int, int, int, int))> a =  // NOLINT
 198       InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6);
 199   EXPECT_EQ(123456, a.Perform(make_tuple(&SumOf6)));
 200 }
 201
 202 // Tests using InvokeArgument with a 6-ary functor.
 203 TEST(InvokeArgumentTest, Functor6) {
 204   Action<int(SumOf6Functor)> a =  // NOLINT
 205       InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6);
 206   EXPECT_EQ(123456, a.Perform(make_tuple(SumOf6Functor())));
 207 }
 208
 209 // Tests using InvokeArgument with a 7-ary function.
 210 TEST(InvokeArgumentTest, Function7) {
 211   Action<string(string(*)(const char*, const char*, const char*,
 212                           const char*, const char*, const char*,
 213                           const char*))> a =
 214       InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7");
 215   EXPECT_EQ("1234567", a.Perform(make_tuple(&Concat7)));
 216 }
 217
 218 // Tests using InvokeArgument with a 8-ary function.
 219 TEST(InvokeArgumentTest, Function8) {
 220   Action<string(string(*)(const char*, const char*, const char*,
 221                           const char*, const char*, const char*,
 222                           const char*, const char*))> a =
 223       InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8");
 224   EXPECT_EQ("12345678", a.Perform(make_tuple(&Concat8)));
 225 }
 226
 227 // Tests using InvokeArgument with a 9-ary function.
 228 TEST(InvokeArgumentTest, Function9) {
 229   Action<string(string(*)(const char*, const char*, const char*,
 230                           const char*, const char*, const char*,
 231                           const char*, const char*, const char*))> a =
 232       InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9");
 233   EXPECT_EQ("123456789", a.Perform(make_tuple(&Concat9)));
 234 }
 235
 236 // Tests using InvokeArgument with a 10-ary function.
 237 TEST(InvokeArgumentTest, Function10) {
 238   Action<string(string(*)(const char*, const char*, const char*,
 239                           const char*, const char*, const char*,
 240                           const char*, const char*, const char*,
 241                           const char*))> a =
 242       InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9", "0");
 243   EXPECT_EQ("1234567890", a.Perform(make_tuple(&Concat10)));
 244 }
 245
 246 // Tests using InvokeArgument with a function that takes a pointer argument.
 247 TEST(InvokeArgumentTest, ByPointerFunction) {
 248   Action<const char*(const char*(*)(const char* input, short n))> a =  // NOLINT
 249       InvokeArgument<0>(static_cast<const char*>("Hi"), Short(1));
 250   EXPECT_STREQ("i", a.Perform(make_tuple(&Binary)));
 251 }
 252
 253 // Tests using InvokeArgument with a function that takes a const char*
 254 // by passing it a C-string literal.
 255 TEST(InvokeArgumentTest, FunctionWithCStringLiteral) {
 256   Action<const char*(const char*(*)(const char* input, short n))> a =  // NOLINT
 257       InvokeArgument<0>("Hi", Short(1));
 258   EXPECT_STREQ("i", a.Perform(make_tuple(&Binary)));
 259 }
 260
 261 // Tests using InvokeArgument with a function that takes a const reference.
 262 TEST(InvokeArgumentTest, ByConstReferenceFunction) {
 263   Action<bool(bool(*function)(const string& s))> a =  // NOLINT
 264       InvokeArgument<0>(string("Hi"));
 265   // When action 'a' is constructed, it makes a copy of the temporary
 266   // string object passed to it, so it's OK to use 'a' later, when the
 267   // temporary object has already died.
 268   EXPECT_TRUE(a.Perform(make_tuple(&ByConstRef)));
 269 }
 270
 271 // Tests using InvokeArgument with ByRef() and a function that takes a
 272 // const reference.
 273 TEST(InvokeArgumentTest, ByExplicitConstReferenceFunction) {
 274   Action<bool(bool(*)(const double& x))> a =  // NOLINT
 275       InvokeArgument<0>(ByRef(g_double));
 276   // The above line calls ByRef() on a const value.
 277   EXPECT_TRUE(a.Perform(make_tuple(&ReferencesGlobalDouble)));
 278
 279   double x = 0;
 280   a = InvokeArgument<0>(ByRef(x));  // This calls ByRef() on a non-const.
 281   EXPECT_FALSE(a.Perform(make_tuple(&ReferencesGlobalDouble)));
 282 }
 283
 284 // Tests using WithArgs and with an action that takes 1 argument.
 285 TEST(WithArgsTest, OneArg) {
 286   Action<bool(double x, int n)> a = WithArgs<1>(Invoke(Unary));  // NOLINT
 287   EXPECT_TRUE(a.Perform(make_tuple(1.5, -1)));
 288   EXPECT_FALSE(a.Perform(make_tuple(1.5, 1)));
 289 }
 290
 291 // Tests using WithArgs with an action that takes 2 arguments.
 292 TEST(WithArgsTest, TwoArgs) {
 293   Action<const char*(const char* s, double x, short n)> a =
 294       WithArgs<0, 2>(Invoke(Binary));
 295   const char s[] = "Hello";
 296   EXPECT_EQ(s + 2, a.Perform(make_tuple(CharPtr(s), 0.5, Short(2))));
 297 }
 298
 299 // Tests using WithArgs with an action that takes 3 arguments.
 300 TEST(WithArgsTest, ThreeArgs) {
 301   Action<int(int, double, char, short)> a =  // NOLINT
 302       WithArgs<0, 2, 3>(Invoke(Ternary));
 303   EXPECT_EQ(123, a.Perform(make_tuple(100, 6.5, Char(20), Short(3))));
 304 }
 305
 306 // Tests using WithArgs with an action that takes 4 arguments.
 307 TEST(WithArgsTest, FourArgs) {
 308   Action<string(const char*, const char*, double, const char*, const char*)> a =
 309       WithArgs<4, 3, 1, 0>(Invoke(Concat4));
 310   EXPECT_EQ("4310", a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), 2.5,
 311                                          CharPtr("3"), CharPtr("4"))));
 312 }
 313
 314 // Tests using WithArgs with an action that takes 5 arguments.
 315 TEST(WithArgsTest, FiveArgs) {
 316   Action<string(const char*, const char*, const char*,
 317                 const char*, const char*)> a =
 318       WithArgs<4, 3, 2, 1, 0>(Invoke(Concat5));
 319   EXPECT_EQ("43210",
 320             a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
 321                                  CharPtr("3"), CharPtr("4"))));
 322 }
 323
 324 // Tests using WithArgs with an action that takes 6 arguments.
 325 TEST(WithArgsTest, SixArgs) {
 326   Action<string(const char*, const char*, const char*)> a =
 327       WithArgs<0, 1, 2, 2, 1, 0>(Invoke(Concat6));
 328   EXPECT_EQ("012210",
 329             a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"))));
 330 }
 331
 332 // Tests using WithArgs with an action that takes 7 arguments.
 333 TEST(WithArgsTest, SevenArgs) {
 334   Action<string(const char*, const char*, const char*, const char*)> a =
 335       WithArgs<0, 1, 2, 3, 2, 1, 0>(Invoke(Concat7));
 336   EXPECT_EQ("0123210",
 337             a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
 338                                  CharPtr("3"))));
 339 }
 340
 341 // Tests using WithArgs with an action that takes 8 arguments.
 342 TEST(WithArgsTest, EightArgs) {
 343   Action<string(const char*, const char*, const char*, const char*)> a =
 344       WithArgs<0, 1, 2, 3, 0, 1, 2, 3>(Invoke(Concat8));
 345   EXPECT_EQ("01230123",
 346             a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
 347                                  CharPtr("3"))));
 348 }
 349
 350 // Tests using WithArgs with an action that takes 9 arguments.
 351 TEST(WithArgsTest, NineArgs) {
 352   Action<string(const char*, const char*, const char*, const char*)> a =
 353       WithArgs<0, 1, 2, 3, 1, 2, 3, 2, 3>(Invoke(Concat9));
 354   EXPECT_EQ("012312323",
 355             a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
 356                                  CharPtr("3"))));
 357 }
 358
 359 // Tests using WithArgs with an action that takes 10 arguments.
 360 TEST(WithArgsTest, TenArgs) {
 361   Action<string(const char*, const char*, const char*, const char*)> a =
 362       WithArgs<0, 1, 2, 3, 2, 1, 0, 1, 2, 3>(Invoke(Concat10));
 363   EXPECT_EQ("0123210123",
 364             a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
 365                                  CharPtr("3"))));
 366 }
 367
 368 // Tests using WithArgs with an action that is not Invoke().
 369 class SubstractAction : public ActionInterface<int(int, int)> {  // NOLINT
 370  public:
 371   virtual int Perform(const tuple<int, int>& args) {
 372     return get<0>(args) - get<1>(args);
 373   }
 374 };
 375
 376 TEST(WithArgsTest, NonInvokeAction) {
 377   Action<int(const string&, int, int)> a =  // NOLINT
 378       WithArgs<2, 1>(MakeAction(new SubstractAction));
 379   EXPECT_EQ(8, a.Perform(make_tuple(CharPtr("hi"), 2, 10)));
 380 }
 381
 382 // Tests using WithArgs to pass all original arguments in the original order.
 383 TEST(WithArgsTest, Identity) {
 384   Action<int(int x, char y, short z)> a =  // NOLINT
 385       WithArgs<0, 1, 2>(Invoke(Ternary));
 386   EXPECT_EQ(123, a.Perform(make_tuple(100, Char(20), Short(3))));
 387 }
 388
 389 // Tests using WithArgs with repeated arguments.
 390 TEST(WithArgsTest, RepeatedArguments) {
 391   Action<int(bool, int m, int n)> a =  // NOLINT
 392       WithArgs<1, 1, 1, 1>(Invoke(SumOf4));
 393   EXPECT_EQ(4, a.Perform(make_tuple(false, 1, 10)));
 394 }
 395
 396 // Tests using WithArgs with reversed argument order.
 397 TEST(WithArgsTest, ReversedArgumentOrder) {
 398   Action<const char*(short n, const char* input)> a =  // NOLINT
 399       WithArgs<1, 0>(Invoke(Binary));
 400   const char s[] = "Hello";
 401   EXPECT_EQ(s + 2, a.Perform(make_tuple(Short(2), CharPtr(s))));
 402 }
 403
 404 // Tests using WithArgs with compatible, but not identical, argument types.
 405 TEST(WithArgsTest, ArgsOfCompatibleTypes) {
 406   Action<long(short x, char y, double z, char c)> a =  // NOLINT
 407       WithArgs<0, 1, 3>(Invoke(Ternary));
 408   EXPECT_EQ(123, a.Perform(make_tuple(Short(100), Char(20), 5.6, Char(3))));
 409 }
 410
 411 // Tests using WithArgs with an action that returns void.
 412 TEST(WithArgsTest, VoidAction) {
 413   Action<void(double x, char c, int n)> a = WithArgs<2, 1>(Invoke(VoidBinary));
 414   g_done = false;
 415   a.Perform(make_tuple(1.5, 'a', 3));
 416   EXPECT_TRUE(g_done);
 417 }
 418
 419 // Tests DoAll(a1, a2).
 420 TEST(DoAllTest, TwoActions) {
 421   int n = 0;
 422   Action<int(int*)> a = DoAll(SetArgPointee<0>(1),  // NOLINT
 423                               Return(2));
 424   EXPECT_EQ(2, a.Perform(make_tuple(&n)));
 425   EXPECT_EQ(1, n);
 426 }
 427
 428 // Tests DoAll(a1, a2, a3).
 429 TEST(DoAllTest, ThreeActions) {
 430   int m = 0, n = 0;
 431   Action<int(int*, int*)> a = DoAll(SetArgPointee<0>(1),  // NOLINT
 432                                     SetArgPointee<1>(2),
 433                                     Return(3));
 434   EXPECT_EQ(3, a.Perform(make_tuple(&m, &n)));
 435   EXPECT_EQ(1, m);
 436   EXPECT_EQ(2, n);
 437 }
 438
 439 // Tests DoAll(a1, a2, a3, a4).
 440 TEST(DoAllTest, FourActions) {
 441   int m = 0, n = 0;
 442   char ch = '\0';
 443   Action<int(int*, int*, char*)> a =  // NOLINT
 444       DoAll(SetArgPointee<0>(1),
 445             SetArgPointee<1>(2),
 446             SetArgPointee<2>('a'),
 447             Return(3));
 448   EXPECT_EQ(3, a.Perform(make_tuple(&m, &n, &ch)));
 449   EXPECT_EQ(1, m);
 450   EXPECT_EQ(2, n);
 451   EXPECT_EQ('a', ch);
 452 }
 453
 454 // Tests DoAll(a1, a2, a3, a4, a5).
 455 TEST(DoAllTest, FiveActions) {
 456   int m = 0, n = 0;
 457   char a = '\0', b = '\0';
 458   Action<int(int*, int*, char*, char*)> action =  // NOLINT
 459       DoAll(SetArgPointee<0>(1),
 460             SetArgPointee<1>(2),
 461             SetArgPointee<2>('a'),
 462             SetArgPointee<3>('b'),
 463             Return(3));
 464   EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b)));
 465   EXPECT_EQ(1, m);
 466   EXPECT_EQ(2, n);
 467   EXPECT_EQ('a', a);
 468   EXPECT_EQ('b', b);
 469 }
 470
 471 // Tests DoAll(a1, a2, ..., a6).
 472 TEST(DoAllTest, SixActions) {
 473   int m = 0, n = 0;
 474   char a = '\0', b = '\0', c = '\0';
 475   Action<int(int*, int*, char*, char*, char*)> action =  // NOLINT
 476       DoAll(SetArgPointee<0>(1),
 477             SetArgPointee<1>(2),
 478             SetArgPointee<2>('a'),
 479             SetArgPointee<3>('b'),
 480             SetArgPointee<4>('c'),
 481             Return(3));
 482   EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c)));
 483   EXPECT_EQ(1, m);
 484   EXPECT_EQ(2, n);
 485   EXPECT_EQ('a', a);
 486   EXPECT_EQ('b', b);
 487   EXPECT_EQ('c', c);
 488 }
 489
 490 // Tests DoAll(a1, a2, ..., a7).
 491 TEST(DoAllTest, SevenActions) {
 492   int m = 0, n = 0;
 493   char a = '\0', b = '\0', c = '\0', d = '\0';
 494   Action<int(int*, int*, char*, char*, char*, char*)> action =  // NOLINT
 495       DoAll(SetArgPointee<0>(1),
 496             SetArgPointee<1>(2),
 497             SetArgPointee<2>('a'),
 498             SetArgPointee<3>('b'),
 499             SetArgPointee<4>('c'),
 500             SetArgPointee<5>('d'),
 501             Return(3));
 502   EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d)));
 503   EXPECT_EQ(1, m);
 504   EXPECT_EQ(2, n);
 505   EXPECT_EQ('a', a);
 506   EXPECT_EQ('b', b);
 507   EXPECT_EQ('c', c);
 508   EXPECT_EQ('d', d);
 509 }
 510
 511 // Tests DoAll(a1, a2, ..., a8).
 512 TEST(DoAllTest, EightActions) {
 513   int m = 0, n = 0;
 514   char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0';
 515   Action<int(int*, int*, char*, char*, char*, char*,  // NOLINT
 516              char*)> action =
 517       DoAll(SetArgPointee<0>(1),
 518             SetArgPointee<1>(2),
 519             SetArgPointee<2>('a'),
 520             SetArgPointee<3>('b'),
 521             SetArgPointee<4>('c'),
 522             SetArgPointee<5>('d'),
 523             SetArgPointee<6>('e'),
 524             Return(3));
 525   EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d, &e)));
 526   EXPECT_EQ(1, m);
 527   EXPECT_EQ(2, n);
 528   EXPECT_EQ('a', a);
 529   EXPECT_EQ('b', b);
 530   EXPECT_EQ('c', c);
 531   EXPECT_EQ('d', d);
 532   EXPECT_EQ('e', e);
 533 }
 534
 535 // Tests DoAll(a1, a2, ..., a9).
 536 TEST(DoAllTest, NineActions) {
 537   int m = 0, n = 0;
 538   char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0', f = '\0';
 539   Action<int(int*, int*, char*, char*, char*, char*,  // NOLINT
 540              char*, char*)> action =
 541       DoAll(SetArgPointee<0>(1),
 542             SetArgPointee<1>(2),
 543             SetArgPointee<2>('a'),
 544             SetArgPointee<3>('b'),
 545             SetArgPointee<4>('c'),
 546             SetArgPointee<5>('d'),
 547             SetArgPointee<6>('e'),
 548             SetArgPointee<7>('f'),
 549             Return(3));
 550   EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d, &e, &f)));
 551   EXPECT_EQ(1, m);
 552   EXPECT_EQ(2, n);
 553   EXPECT_EQ('a', a);
 554   EXPECT_EQ('b', b);
 555   EXPECT_EQ('c', c);
 556   EXPECT_EQ('d', d);
 557   EXPECT_EQ('e', e);
 558   EXPECT_EQ('f', f);
 559 }
 560
 561 // Tests DoAll(a1, a2, ..., a10).
 562 TEST(DoAllTest, TenActions) {
 563   int m = 0, n = 0;
 564   char a = '\0', b = '\0', c = '\0', d = '\0';
 565   char e = '\0', f = '\0', g = '\0';
 566   Action<int(int*, int*, char*, char*, char*, char*,  // NOLINT
 567              char*, char*, char*)> action =
 568       DoAll(SetArgPointee<0>(1),
 569             SetArgPointee<1>(2),
 570             SetArgPointee<2>('a'),
 571             SetArgPointee<3>('b'),
 572             SetArgPointee<4>('c'),
 573             SetArgPointee<5>('d'),
 574             SetArgPointee<6>('e'),
 575             SetArgPointee<7>('f'),
 576             SetArgPointee<8>('g'),
 577             Return(3));
 578   EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d, &e, &f, &g)));
 579   EXPECT_EQ(1, m);
 580   EXPECT_EQ(2, n);
 581   EXPECT_EQ('a', a);
 582   EXPECT_EQ('b', b);
 583   EXPECT_EQ('c', c);
 584   EXPECT_EQ('d', d);
 585   EXPECT_EQ('e', e);
 586   EXPECT_EQ('f', f);
 587   EXPECT_EQ('g', g);
 588 }
 589
 590 // The ACTION*() macros trigger warning C4100 (unreferenced formal
 591 // parameter) in MSVC with -W4.  Unfortunately they cannot be fixed in
 592 // the macro definition, as the warnings are generated when the macro
 593 // is expanded and macro expansion cannot contain #pragma.  Therefore
 594 // we suppress them here.
 595 #ifdef _MSC_VER
 596 # pragma warning(push)
 597 # pragma warning(disable:4100)
 598 #endif
 599
 600 // Tests the ACTION*() macro family.
 601
 602 // Tests that ACTION() can define an action that doesn't reference the
 603 // mock function arguments.
 604 ACTION(Return5) { return 5; }
 605
 606 TEST(ActionMacroTest, WorksWhenNotReferencingArguments) {
 607   Action<double()> a1 = Return5();
 608   EXPECT_DOUBLE_EQ(5, a1.Perform(make_tuple()));
 609
 610   Action<int(double, bool)> a2 = Return5();
 611   EXPECT_EQ(5, a2.Perform(make_tuple(1, true)));
 612 }
 613
 614 // Tests that ACTION() can define an action that returns void.
 615 ACTION(IncrementArg1) { (*arg1)++; }
 616
 617 TEST(ActionMacroTest, WorksWhenReturningVoid) {
 618   Action<void(int, int*)> a1 = IncrementArg1();
 619   int n = 0;
 620   a1.Perform(make_tuple(5, &n));
 621   EXPECT_EQ(1, n);
 622 }
 623
 624 // Tests that the body of ACTION() can reference the type of the
 625 // argument.
 626 ACTION(IncrementArg2) {
 627   StaticAssertTypeEq<int*, arg2_type>();
 628   arg2_type temp = arg2;
 629   (*temp)++;
 630 }
 631
 632 TEST(ActionMacroTest, CanReferenceArgumentType) {
 633   Action<void(int, bool, int*)> a1 = IncrementArg2();
 634   int n = 0;
 635   a1.Perform(make_tuple(5, false, &n));
 636   EXPECT_EQ(1, n);
 637 }
 638
 639 // Tests that the body of ACTION() can reference the argument tuple
 640 // via args_type and args.
 641 ACTION(Sum2) {
 642   StaticAssertTypeEq< ::std::tr1::tuple<int, char, int*>, args_type>();
 643   args_type args_copy = args;
 644   return get<0>(args_copy) + get<1>(args_copy);
 645 }
 646
 647 TEST(ActionMacroTest, CanReferenceArgumentTuple) {
 648   Action<int(int, char, int*)> a1 = Sum2();
 649   int dummy = 0;
 650   EXPECT_EQ(11, a1.Perform(make_tuple(5, Char(6), &dummy)));
 651 }
 652
 653 // Tests that the body of ACTION() can reference the mock function
 654 // type.
 655 int Dummy(bool flag) { return flag? 1 : 0; }
 656
 657 ACTION(InvokeDummy) {
 658   StaticAssertTypeEq<int(bool), function_type>();
 659   function_type* fp = &Dummy;
 660   return (*fp)(true);
 661 }
 662
 663 TEST(ActionMacroTest, CanReferenceMockFunctionType) {
 664   Action<int(bool)> a1 = InvokeDummy();
 665   EXPECT_EQ(1, a1.Perform(make_tuple(true)));
 666   EXPECT_EQ(1, a1.Perform(make_tuple(false)));
 667 }
 668
 669 // Tests that the body of ACTION() can reference the mock function's
 670 // return type.
 671 ACTION(InvokeDummy2) {
 672   StaticAssertTypeEq<int, return_type>();
 673   return_type result = Dummy(true);
 674   return result;
 675 }
 676
 677 TEST(ActionMacroTest, CanReferenceMockFunctionReturnType) {
 678   Action<int(bool)> a1 = InvokeDummy2();
 679   EXPECT_EQ(1, a1.Perform(make_tuple(true)));
 680   EXPECT_EQ(1, a1.Perform(make_tuple(false)));
 681 }
 682
 683 // Tests that ACTION() works for arguments passed by const reference.
 684 ACTION(ReturnAddrOfConstBoolReferenceArg) {
 685   StaticAssertTypeEq<const bool&, arg1_type>();
 686   return &arg1;
 687 }
 688
 689 TEST(ActionMacroTest, WorksForConstReferenceArg) {
 690   Action<const bool*(int, const bool&)> a = ReturnAddrOfConstBoolReferenceArg();
 691   const bool b = false;
 692   EXPECT_EQ(&b, a.Perform(tuple<int, const bool&>(0, b)));
 693 }
 694
 695 // Tests that ACTION() works for arguments passed by non-const reference.
 696 ACTION(ReturnAddrOfIntReferenceArg) {
 697   StaticAssertTypeEq<int&, arg0_type>();
 698   return &arg0;
 699 }
 700
 701 TEST(ActionMacroTest, WorksForNonConstReferenceArg) {
 702   Action<int*(int&, bool, int)> a = ReturnAddrOfIntReferenceArg();
 703   int n = 0;
 704   EXPECT_EQ(&n, a.Perform(tuple<int&, bool, int>(n, true, 1)));
 705 }
 706
 707 // Tests that ACTION() can be used in a namespace.
 708 namespace action_test {
 709 ACTION(Sum) { return arg0 + arg1; }
 710 }  // namespace action_test
 711
 712 TEST(ActionMacroTest, WorksInNamespace) {
 713   Action<int(int, int)> a1 = action_test::Sum();
 714   EXPECT_EQ(3, a1.Perform(make_tuple(1, 2)));
 715 }
 716
 717 // Tests that the same ACTION definition works for mock functions with
 718 // different argument numbers.
 719 ACTION(PlusTwo) { return arg0 + 2; }
 720
 721 TEST(ActionMacroTest, WorksForDifferentArgumentNumbers) {
 722   Action<int(int)> a1 = PlusTwo();
 723   EXPECT_EQ(4, a1.Perform(make_tuple(2)));
 724
 725   Action<double(float, void*)> a2 = PlusTwo();
 726   int dummy;
 727   EXPECT_DOUBLE_EQ(6, a2.Perform(make_tuple(4.0f, &dummy)));
 728 }
 729
 730 // Tests that ACTION_P can define a parameterized action.
 731 ACTION_P(Plus, n) { return arg0 + n; }
 732
 733 TEST(ActionPMacroTest, DefinesParameterizedAction) {
 734   Action<int(int m, bool t)> a1 = Plus(9);
 735   EXPECT_EQ(10, a1.Perform(make_tuple(1, true)));
 736 }
 737
 738 // Tests that the body of ACTION_P can reference the argument types
 739 // and the parameter type.
 740 ACTION_P(TypedPlus, n) {
 741   arg0_type t1 = arg0;
 742   n_type t2 = n;
 743   return t1 + t2;
 744 }
 745
 746 TEST(ActionPMacroTest, CanReferenceArgumentAndParameterTypes) {
 747   Action<int(char m, bool t)> a1 = TypedPlus(9);
 748   EXPECT_EQ(10, a1.Perform(make_tuple(Char(1), true)));
 749 }
 750
 751 // Tests that a parameterized action can be used in any mock function
 752 // whose type is compatible.
 753 TEST(ActionPMacroTest, WorksInCompatibleMockFunction) {
 754   Action<std::string(const std::string& s)> a1 = Plus("tail");
 755   const std::string re = "re";
 756   EXPECT_EQ("retail", a1.Perform(make_tuple(re)));
 757 }
 758
 759 // Tests that we can use ACTION*() to define actions overloaded on the
 760 // number of parameters.
 761
 762 ACTION(OverloadedAction) { return arg0 ? arg1 : "hello"; }
 763
 764 ACTION_P(OverloadedAction, default_value) {
 765   return arg0 ? arg1 : default_value;
 766 }
 767
 768 ACTION_P2(OverloadedAction, true_value, false_value) {
 769   return arg0 ? true_value : false_value;
 770 }
 771
 772 TEST(ActionMacroTest, CanDefineOverloadedActions) {
 773   typedef Action<const char*(bool, const char*)> MyAction;
 774
 775   const MyAction a1 = OverloadedAction();
 776   EXPECT_STREQ("hello", a1.Perform(make_tuple(false, CharPtr("world"))));
 777   EXPECT_STREQ("world", a1.Perform(make_tuple(true, CharPtr("world"))));
 778
 779   const MyAction a2 = OverloadedAction("hi");
 780   EXPECT_STREQ("hi", a2.Perform(make_tuple(false, CharPtr("world"))));
 781   EXPECT_STREQ("world", a2.Perform(make_tuple(true, CharPtr("world"))));
 782
 783   const MyAction a3 = OverloadedAction("hi", "you");
 784   EXPECT_STREQ("hi", a3.Perform(make_tuple(true, CharPtr("world"))));
 785   EXPECT_STREQ("you", a3.Perform(make_tuple(false, CharPtr("world"))));
 786 }
 787
 788 // Tests ACTION_Pn where n >= 3.
 789
 790 ACTION_P3(Plus, m, n, k) { return arg0 + m + n + k; }
 791
 792 TEST(ActionPnMacroTest, WorksFor3Parameters) {
 793   Action<double(int m, bool t)> a1 = Plus(100, 20, 3.4);
 794   EXPECT_DOUBLE_EQ(3123.4, a1.Perform(make_tuple(3000, true)));
 795
 796   Action<std::string(const std::string& s)> a2 = Plus("tail", "-", ">");
 797   const std::string re = "re";
 798   EXPECT_EQ("retail->", a2.Perform(make_tuple(re)));
 799 }
 800
 801 ACTION_P4(Plus, p0, p1, p2, p3) { return arg0 + p0 + p1 + p2 + p3; }
 802
 803 TEST(ActionPnMacroTest, WorksFor4Parameters) {
 804   Action<int(int)> a1 = Plus(1, 2, 3, 4);
 805   EXPECT_EQ(10 + 1 + 2 + 3 + 4, a1.Perform(make_tuple(10)));
 806 }
 807
 808 ACTION_P5(Plus, p0, p1, p2, p3, p4) { return arg0 + p0 + p1 + p2 + p3 + p4; }
 809
 810 TEST(ActionPnMacroTest, WorksFor5Parameters) {
 811   Action<int(int)> a1 = Plus(1, 2, 3, 4, 5);
 812   EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5, a1.Perform(make_tuple(10)));
 813 }
 814
 815 ACTION_P6(Plus, p0, p1, p2, p3, p4, p5) {
 816   return arg0 + p0 + p1 + p2 + p3 + p4 + p5;
 817 }
 818
 819 TEST(ActionPnMacroTest, WorksFor6Parameters) {
 820   Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6);
 821   EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6, a1.Perform(make_tuple(10)));
 822 }
 823
 824 ACTION_P7(Plus, p0, p1, p2, p3, p4, p5, p6) {
 825   return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6;
 826 }
 827
 828 TEST(ActionPnMacroTest, WorksFor7Parameters) {
 829   Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7);
 830   EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7, a1.Perform(make_tuple(10)));
 831 }
 832
 833 ACTION_P8(Plus, p0, p1, p2, p3, p4, p5, p6, p7) {
 834   return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7;
 835 }
 836
 837 TEST(ActionPnMacroTest, WorksFor8Parameters) {
 838   Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8);
 839   EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8, a1.Perform(make_tuple(10)));
 840 }
 841
 842 ACTION_P9(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8) {
 843   return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8;
 844 }
 845
 846 TEST(ActionPnMacroTest, WorksFor9Parameters) {
 847   Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9);
 848   EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9, a1.Perform(make_tuple(10)));
 849 }
 850
 851 ACTION_P10(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8, last_param) {
 852   arg0_type t0 = arg0;
 853   last_param_type t9 = last_param;
 854   return t0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + t9;
 855 }
 856
 857 TEST(ActionPnMacroTest, WorksFor10Parameters) {
 858   Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
 859   EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10,
 860             a1.Perform(make_tuple(10)));
 861 }
 862
 863 // Tests that the action body can promote the parameter types.
 864
 865 ACTION_P2(PadArgument, prefix, suffix) {
 866   // The following lines promote the two parameters to desired types.
 867   std::string prefix_str(prefix);
 868   char suffix_char = static_cast<char>(suffix);
 869   return prefix_str + arg0 + suffix_char;
 870 }
 871
 872 TEST(ActionPnMacroTest, SimpleTypePromotion) {
 873   Action<std::string(const char*)> no_promo =
 874       PadArgument(std::string("foo"), 'r');
 875   Action<std::string(const char*)> promo =
 876       PadArgument("foo", static_cast<int>('r'));
 877   EXPECT_EQ("foobar", no_promo.Perform(make_tuple(CharPtr("ba"))));
 878   EXPECT_EQ("foobar", promo.Perform(make_tuple(CharPtr("ba"))));
 879 }
 880
 881 // Tests that we can partially restrict parameter types using a
 882 // straight-forward pattern.
 883
 884 // Defines a generic action that doesn't restrict the types of its
 885 // parameters.
 886 ACTION_P3(ConcatImpl, a, b, c) {
 887   std::stringstream ss;
 888   ss << a << b << c;
 889   return ss.str();
 890 }
 891
 892 // Next, we try to restrict that either the first parameter is a
 893 // string, or the second parameter is an int.
 894
 895 // Defines a partially specialized wrapper that restricts the first
 896 // parameter to std::string.
 897 template <typename T1, typename T2>
 898 // ConcatImplActionP3 is the class template ACTION_P3 uses to
 899 // implement ConcatImpl.  We shouldn't change the name as this
 900 // pattern requires the user to use it directly.
 901 ConcatImplActionP3<std::string, T1, T2>
 902 Concat(const std::string& a, T1 b, T2 c) {
 903   if (true) {
 904     // This branch verifies that ConcatImpl() can be invoked without
 905     // explicit template arguments.
 906     return ConcatImpl(a, b, c);
 907   } else {
 908     // This branch verifies that ConcatImpl() can also be invoked with
 909     // explicit template arguments.  It doesn't really need to be
 910     // executed as this is a compile-time verification.
 911     return ConcatImpl<std::string, T1, T2>(a, b, c);
 912   }
 913 }
 914
 915 // Defines another partially specialized wrapper that restricts the
 916 // second parameter to int.
 917 template <typename T1, typename T2>
 918 ConcatImplActionP3<T1, int, T2>
 919 Concat(T1 a, int b, T2 c) {
 920   return ConcatImpl(a, b, c);
 921 }
 922
 923 TEST(ActionPnMacroTest, CanPartiallyRestrictParameterTypes) {
 924   Action<const std::string()> a1 = Concat("Hello", "1", 2);
 925   EXPECT_EQ("Hello12", a1.Perform(make_tuple()));
 926
 927   a1 = Concat(1, 2, 3);
 928   EXPECT_EQ("123", a1.Perform(make_tuple()));
 929 }
 930
 931 // Verifies the type of an ACTION*.
 932
 933 ACTION(DoFoo) {}
 934 ACTION_P(DoFoo, p) {}
 935 ACTION_P2(DoFoo, p0, p1) {}
 936
 937 TEST(ActionPnMacroTest, TypesAreCorrect) {
 938   // DoFoo() must be assignable to a DoFooAction variable.
 939   DoFooAction a0 = DoFoo();
 940
 941   // DoFoo(1) must be assignable to a DoFooActionP variable.
 942   DoFooActionP<int> a1 = DoFoo(1);
 943
 944   // DoFoo(p1, ..., pk) must be assignable to a DoFooActionPk
 945   // variable, and so on.
 946   DoFooActionP2<int, char> a2 = DoFoo(1, '2');
 947   PlusActionP3<int, int, char> a3 = Plus(1, 2, '3');
 948   PlusActionP4<int, int, int, char> a4 = Plus(1, 2, 3, '4');
 949   PlusActionP5<int, int, int, int, char> a5 = Plus(1, 2, 3, 4, '5');
 950   PlusActionP6<int, int, int, int, int, char> a6 = Plus(1, 2, 3, 4, 5, '6');
 951   PlusActionP7<int, int, int, int, int, int, char> a7 =
 952       Plus(1, 2, 3, 4, 5, 6, '7');
 953   PlusActionP8<int, int, int, int, int, int, int, char> a8 =
 954       Plus(1, 2, 3, 4, 5, 6, 7, '8');
 955   PlusActionP9<int, int, int, int, int, int, int, int, char> a9 =
 956       Plus(1, 2, 3, 4, 5, 6, 7, 8, '9');
 957   PlusActionP10<int, int, int, int, int, int, int, int, int, char> a10 =
 958       Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, '0');
 959 }
 960
 961 // Tests that an ACTION_P*() action can be explicitly instantiated
 962 // with reference-typed parameters.
 963
 964 ACTION_P(Plus1, x) { return x; }
 965 ACTION_P2(Plus2, x, y) { return x + y; }
 966 ACTION_P3(Plus3, x, y, z) { return x + y + z; }
 967 ACTION_P10(Plus10, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
 968   return a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9;
 969 }
 970
 971 TEST(ActionPnMacroTest, CanExplicitlyInstantiateWithReferenceTypes) {
 972   int x = 1, y = 2, z = 3;
 973   const tuple<> empty = make_tuple();
 974
 975   Action<int()> a = Plus1<int&>(x);
 976   EXPECT_EQ(1, a.Perform(empty));
 977
 978   a = Plus2<const int&, int&>(x, y);
 979   EXPECT_EQ(3, a.Perform(empty));
 980
 981   a = Plus3<int&, const int&, int&>(x, y, z);
 982   EXPECT_EQ(6, a.Perform(empty));
 983
 984   int n[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
 985   a = Plus10<const int&, int&, const int&, int&, const int&, int&, const int&,
 986       int&, const int&, int&>(n[0], n[1], n[2], n[3], n[4], n[5], n[6], n[7],
 987                               n[8], n[9]);
 988   EXPECT_EQ(55, a.Perform(empty));
 989 }
 990
 991 class NullaryConstructorClass {
 992  public:
 993   NullaryConstructorClass() : value_(123) {}
 994   int value_;
 995 };
 996
 997 // Tests using ReturnNew() with a nullary constructor.
 998 TEST(ReturnNewTest, NoArgs) {
 999   Action<NullaryConstructorClass*()> a = ReturnNew<NullaryConstructorClass>();
1000   NullaryConstructorClass* c = a.Perform(make_tuple());
1001   EXPECT_EQ(123, c->value_);
1002   delete c;
1003 }
1004
1005 class UnaryConstructorClass {
1006  public:
1007   explicit UnaryConstructorClass(int value) : value_(value) {}
1008   int value_;
1009 };
1010
1011 // Tests using ReturnNew() with a unary constructor.
1012 TEST(ReturnNewTest, Unary) {
1013   Action<UnaryConstructorClass*()> a = ReturnNew<UnaryConstructorClass>(4000);
1014   UnaryConstructorClass* c = a.Perform(make_tuple());
1015   EXPECT_EQ(4000, c->value_);
1016   delete c;
1017 }
1018
1019 TEST(ReturnNewTest, UnaryWorksWhenMockMethodHasArgs) {
1020   Action<UnaryConstructorClass*(bool, int)> a =
1021       ReturnNew<UnaryConstructorClass>(4000);
1022   UnaryConstructorClass* c = a.Perform(make_tuple(false, 5));
1023   EXPECT_EQ(4000, c->value_);
1024   delete c;
1025 }
1026
1027 TEST(ReturnNewTest, UnaryWorksWhenMockMethodReturnsPointerToConst) {
1028   Action<const UnaryConstructorClass*()> a =
1029       ReturnNew<UnaryConstructorClass>(4000);
1030   const UnaryConstructorClass* c = a.Perform(make_tuple());
1031   EXPECT_EQ(4000, c->value_);
1032   delete c;
1033 }
1034
1035 class TenArgConstructorClass {
1036  public:
1037   TenArgConstructorClass(int a1, int a2, int a3, int a4, int a5,
1038                          int a6, int a7, int a8, int a9, int a10)
1039     : value_(a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9 + a10) {
1040   }
1041   int value_;
1042 };
1043
1044 // Tests using ReturnNew() with a 10-argument constructor.
1045 TEST(ReturnNewTest, ConstructorThatTakes10Arguments) {
1046   Action<TenArgConstructorClass*()> a =
1047       ReturnNew<TenArgConstructorClass>(1000000000, 200000000, 30000000,
1048                                         4000000, 500000, 60000,
1049                                         7000, 800, 90, 0);
1050   TenArgConstructorClass* c = a.Perform(make_tuple());
1051   EXPECT_EQ(1234567890, c->value_);
1052   delete c;
1053 }
1054
1055 // Tests that ACTION_TEMPLATE works when there is no value parameter.
1056 ACTION_TEMPLATE(CreateNew,
1057                 HAS_1_TEMPLATE_PARAMS(typename, T),
1058                 AND_0_VALUE_PARAMS()) {
1059   return new T;
1060 }
1061
1062 TEST(ActionTemplateTest, WorksWithoutValueParam) {
1063   const Action<int*()> a = CreateNew<int>();
1064   int* p = a.Perform(make_tuple());
1065   delete p;
1066 }
1067
1068 // Tests that ACTION_TEMPLATE works when there are value parameters.
1069 ACTION_TEMPLATE(CreateNew,
1070                 HAS_1_TEMPLATE_PARAMS(typename, T),
1071                 AND_1_VALUE_PARAMS(a0)) {
1072   return new T(a0);
1073 }
1074
1075 TEST(ActionTemplateTest, WorksWithValueParams) {
1076   const Action<int*()> a = CreateNew<int>(42);
1077   int* p = a.Perform(make_tuple());
1078   EXPECT_EQ(42, *p);
1079   delete p;
1080 }
1081
1082 // Tests that ACTION_TEMPLATE works for integral template parameters.
1083 ACTION_TEMPLATE(MyDeleteArg,
1084                 HAS_1_TEMPLATE_PARAMS(int, k),
1085                 AND_0_VALUE_PARAMS()) {
1086   delete std::tr1::get<k>(args);
1087 }
1088
1089 // Resets a bool variable in the destructor.
1090 class BoolResetter {
1091  public:
1092   explicit BoolResetter(bool* value) : value_(value) {}
1093   ~BoolResetter() { *value_ = false; }
1094  private:
1095   bool* value_;
1096 };
1097
1098 TEST(ActionTemplateTest, WorksForIntegralTemplateParams) {
1099   const Action<void(int*, BoolResetter*)> a = MyDeleteArg<1>();
1100   int n = 0;
1101   bool b = true;
1102   BoolResetter* resetter = new BoolResetter(&b);
1103   a.Perform(make_tuple(&n, resetter));
1104   EXPECT_FALSE(b);  // Verifies that resetter is deleted.
1105 }
1106
1107 // Tests that ACTION_TEMPLATES works for template template parameters.
1108 ACTION_TEMPLATE(ReturnSmartPointer,
1109                 HAS_1_TEMPLATE_PARAMS(template <typename Pointee> class,
1110                                       Pointer),
1111                 AND_1_VALUE_PARAMS(pointee)) {
1112   return Pointer<pointee_type>(new pointee_type(pointee));
1113 }
1114
1115 TEST(ActionTemplateTest, WorksForTemplateTemplateParameters) {
1116   using ::testing::internal::linked_ptr;
1117   const Action<linked_ptr<int>()> a = ReturnSmartPointer<linked_ptr>(42);
1118   linked_ptr<int> p = a.Perform(make_tuple());
1119   EXPECT_EQ(42, *p);
1120 }
1121
1122 // Tests that ACTION_TEMPLATE works for 10 template parameters.
1123 template <typename T1, typename T2, typename T3, int k4, bool k5,
1124           unsigned int k6, typename T7, typename T8, typename T9>
1125 struct GiantTemplate {
1126  public:
1127   explicit GiantTemplate(int a_value) : value(a_value) {}
1128   int value;
1129 };
1130
1131 ACTION_TEMPLATE(ReturnGiant,
1132                 HAS_10_TEMPLATE_PARAMS(
1133                     typename, T1,
1134                     typename, T2,
1135                     typename, T3,
1136                     int, k4,
1137                     bool, k5,
1138                     unsigned int, k6,
1139                     class, T7,
1140                     class, T8,
1141                     class, T9,
1142                     template <typename T> class, T10),
1143                 AND_1_VALUE_PARAMS(value)) {
1144   return GiantTemplate<T10<T1>, T2, T3, k4, k5, k6, T7, T8, T9>(value);
1145 }
1146
1147 TEST(ActionTemplateTest, WorksFor10TemplateParameters) {
1148   using ::testing::internal::linked_ptr;
1149   typedef GiantTemplate<linked_ptr<int>, bool, double, 5,
1150       true, 6, char, unsigned, int> Giant;
1151   const Action<Giant()> a = ReturnGiant<
1152       int, bool, double, 5, true, 6, char, unsigned, int, linked_ptr>(42);
1153   Giant giant = a.Perform(make_tuple());
1154   EXPECT_EQ(42, giant.value);
1155 }
1156
1157 // Tests that ACTION_TEMPLATE works for 10 value parameters.
1158 ACTION_TEMPLATE(ReturnSum,
1159                 HAS_1_TEMPLATE_PARAMS(typename, Number),
1160                 AND_10_VALUE_PARAMS(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10)) {
1161   return static_cast<Number>(v1) + v2 + v3 + v4 + v5 + v6 + v7 + v8 + v9 + v10;
1162 }
1163
1164 TEST(ActionTemplateTest, WorksFor10ValueParameters) {
1165   const Action<int()> a = ReturnSum<int>(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
1166   EXPECT_EQ(55, a.Perform(make_tuple()));
1167 }
1168
1169 // Tests that ACTION_TEMPLATE and ACTION/ACTION_P* can be overloaded
1170 // on the number of value parameters.
1171
1172 ACTION(ReturnSum) { return 0; }
1173
1174 ACTION_P(ReturnSum, x) { return x; }
1175
1176 ACTION_TEMPLATE(ReturnSum,
1177                 HAS_1_TEMPLATE_PARAMS(typename, Number),
1178                 AND_2_VALUE_PARAMS(v1, v2)) {
1179   return static_cast<Number>(v1) + v2;
1180 }
1181
1182 ACTION_TEMPLATE(ReturnSum,
1183                 HAS_1_TEMPLATE_PARAMS(typename, Number),
1184                 AND_3_VALUE_PARAMS(v1, v2, v3)) {
1185   return static_cast<Number>(v1) + v2 + v3;
1186 }
1187
1188 ACTION_TEMPLATE(ReturnSum,
1189                 HAS_2_TEMPLATE_PARAMS(typename, Number, int, k),
1190                 AND_4_VALUE_PARAMS(v1, v2, v3, v4)) {
1191   return static_cast<Number>(v1) + v2 + v3 + v4 + k;
1192 }
1193
1194 TEST(ActionTemplateTest, CanBeOverloadedOnNumberOfValueParameters) {
1195   const Action<int()> a0 = ReturnSum();
1196   const Action<int()> a1 = ReturnSum(1);
1197   const Action<int()> a2 = ReturnSum<int>(1, 2);
1198   const Action<int()> a3 = ReturnSum<int>(1, 2, 3);
1199   const Action<int()> a4 = ReturnSum<int, 10000>(2000, 300, 40, 5);
1200   EXPECT_EQ(0, a0.Perform(make_tuple()));
1201   EXPECT_EQ(1, a1.Perform(make_tuple()));
1202   EXPECT_EQ(3, a2.Perform(make_tuple()));
1203   EXPECT_EQ(6, a3.Perform(make_tuple()));
1204   EXPECT_EQ(12345, a4.Perform(make_tuple()));
1205 }
1206
1207 #ifdef _MSC_VER
1208 # pragma warning(pop)
1209 #endif
1210
1211 }  // namespace gmock_generated_actions_test
1212 }  // namespace testing