deanm@google.com | 96aac0a | 2008-08-25 22:42:07 +0900 | [diff] [blame] | 1 | // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "base/tuple.h" |
evan@chromium.org | 2003be9 | 2010-03-31 02:29:27 +0900 | [diff] [blame] | 6 | |
| 7 | #include "base/compiler_specific.h" |
deanm@google.com | 96aac0a | 2008-08-25 22:42:07 +0900 | [diff] [blame] | 8 | #include "testing/gtest/include/gtest/gtest.h" |
| 9 | |
| 10 | namespace { |
| 11 | |
| 12 | void DoAdd(int a, int b, int c, int* res) { |
| 13 | *res = a + b + c; |
| 14 | } |
| 15 | |
| 16 | struct Addy { |
| 17 | Addy() { } |
| 18 | void DoAdd(int a, int b, int c, int d, int* res) { |
| 19 | *res = a + b + c + d; |
| 20 | } |
| 21 | }; |
| 22 | |
ojan@google.com | 3835509 | 2008-10-10 06:58:05 +0900 | [diff] [blame] | 23 | struct Addz { |
| 24 | Addz() { } |
| 25 | void DoAdd(int a, int b, int c, int d, int e, int* res) { |
| 26 | *res = a + b + c + d + e; |
| 27 | } |
| 28 | }; |
| 29 | |
deanm@google.com | 96aac0a | 2008-08-25 22:42:07 +0900 | [diff] [blame] | 30 | } // namespace |
| 31 | |
| 32 | TEST(TupleTest, Basic) { |
evan@chromium.org | 2003be9 | 2010-03-31 02:29:27 +0900 | [diff] [blame] | 33 | Tuple0 t0 ALLOW_UNUSED = MakeTuple(); |
deanm@google.com | 96aac0a | 2008-08-25 22:42:07 +0900 | [diff] [blame] | 34 | Tuple1<int> t1(1); |
| 35 | Tuple2<int, const char*> t2 = MakeTuple(1, static_cast<const char*>("wee")); |
| 36 | Tuple3<int, int, int> t3(1, 2, 3); |
| 37 | Tuple4<int, int, int, int*> t4(1, 2, 3, &t1.a); |
| 38 | Tuple5<int, int, int, int, int*> t5(1, 2, 3, 4, &t4.a); |
ojan@google.com | 3835509 | 2008-10-10 06:58:05 +0900 | [diff] [blame] | 39 | Tuple6<int, int, int, int, int, int*> t6(1, 2, 3, 4, 5, &t4.a); |
deanm@google.com | 96aac0a | 2008-08-25 22:42:07 +0900 | [diff] [blame] | 40 | |
| 41 | EXPECT_EQ(1, t1.a); |
| 42 | EXPECT_EQ(1, t2.a); |
| 43 | EXPECT_EQ(1, t3.a); |
| 44 | EXPECT_EQ(2, t3.b); |
| 45 | EXPECT_EQ(3, t3.c); |
| 46 | EXPECT_EQ(1, t4.a); |
| 47 | EXPECT_EQ(2, t4.b); |
| 48 | EXPECT_EQ(3, t4.c); |
| 49 | EXPECT_EQ(1, t5.a); |
| 50 | EXPECT_EQ(2, t5.b); |
| 51 | EXPECT_EQ(3, t5.c); |
| 52 | EXPECT_EQ(4, t5.d); |
ojan@google.com | 3835509 | 2008-10-10 06:58:05 +0900 | [diff] [blame] | 53 | EXPECT_EQ(1, t6.a); |
| 54 | EXPECT_EQ(2, t6.b); |
| 55 | EXPECT_EQ(3, t6.c); |
| 56 | EXPECT_EQ(4, t6.d); |
| 57 | EXPECT_EQ(5, t6.e); |
deanm@google.com | 96aac0a | 2008-08-25 22:42:07 +0900 | [diff] [blame] | 58 | |
| 59 | EXPECT_EQ(1, t1.a); |
| 60 | DispatchToFunction(&DoAdd, t4); |
| 61 | EXPECT_EQ(6, t1.a); |
| 62 | |
| 63 | int res = 0; |
| 64 | DispatchToFunction(&DoAdd, MakeTuple(9, 8, 7, &res)); |
| 65 | EXPECT_EQ(24, res); |
| 66 | |
| 67 | Addy addy; |
| 68 | EXPECT_EQ(1, t4.a); |
| 69 | DispatchToMethod(&addy, &Addy::DoAdd, t5); |
| 70 | EXPECT_EQ(10, t4.a); |
ojan@google.com | 3835509 | 2008-10-10 06:58:05 +0900 | [diff] [blame] | 71 | |
| 72 | Addz addz; |
| 73 | EXPECT_EQ(10, t4.a); |
| 74 | DispatchToMethod(&addz, &Addz::DoAdd, t6); |
| 75 | EXPECT_EQ(15, t4.a); |
deanm@google.com | 96aac0a | 2008-08-25 22:42:07 +0900 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | namespace { |
| 79 | |
| 80 | struct CopyLogger { |
| 81 | CopyLogger() { ++TimesConstructed; } |
| 82 | CopyLogger(const CopyLogger& tocopy) { ++TimesConstructed; ++TimesCopied; } |
| 83 | ~CopyLogger() { } |
| 84 | |
| 85 | static int TimesCopied; |
| 86 | static int TimesConstructed; |
| 87 | }; |
| 88 | |
| 89 | void SomeLoggerMethRef(const CopyLogger& logy, const CopyLogger* ptr, bool* b) { |
| 90 | *b = &logy == ptr; |
| 91 | } |
| 92 | |
| 93 | void SomeLoggerMethCopy(CopyLogger logy, const CopyLogger* ptr, bool* b) { |
| 94 | *b = &logy == ptr; |
| 95 | } |
| 96 | |
| 97 | int CopyLogger::TimesCopied = 0; |
| 98 | int CopyLogger::TimesConstructed = 0; |
| 99 | |
| 100 | } // namespace |
| 101 | |
| 102 | TEST(TupleTest, Copying) { |
| 103 | CopyLogger logger; |
| 104 | EXPECT_EQ(0, CopyLogger::TimesCopied); |
| 105 | EXPECT_EQ(1, CopyLogger::TimesConstructed); |
| 106 | |
| 107 | bool res = false; |
| 108 | |
| 109 | // Creating the tuple should copy the class to store internally in the tuple. |
| 110 | Tuple3<CopyLogger, CopyLogger*, bool*> tuple(logger, &logger, &res); |
| 111 | tuple.b = &tuple.a; |
| 112 | EXPECT_EQ(2, CopyLogger::TimesConstructed); |
| 113 | EXPECT_EQ(1, CopyLogger::TimesCopied); |
| 114 | |
| 115 | // Our internal Logger and the one passed to the function should be the same. |
| 116 | res = false; |
| 117 | DispatchToFunction(&SomeLoggerMethRef, tuple); |
| 118 | EXPECT_TRUE(res); |
| 119 | EXPECT_EQ(2, CopyLogger::TimesConstructed); |
| 120 | EXPECT_EQ(1, CopyLogger::TimesCopied); |
| 121 | |
| 122 | // Now they should be different, since the function call will make a copy. |
| 123 | res = false; |
| 124 | DispatchToFunction(&SomeLoggerMethCopy, tuple); |
| 125 | EXPECT_FALSE(res); |
| 126 | EXPECT_EQ(3, CopyLogger::TimesConstructed); |
| 127 | EXPECT_EQ(2, CopyLogger::TimesCopied); |
| 128 | } |