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| 1 // Copyright 2003, Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 // | |
| 30 // Authors: Dan Egnor (egnor@google.com) | |
| 31 // Ported to Windows: Vadim Berman (vadimb@google.com) | |
| 32 | |
| 33 #include "gtest/internal/gtest-linked_ptr.h" | |
| 34 | |
| 35 #include <stdlib.h> | |
| 36 #include "gtest/gtest.h" | |
| 37 | |
| 38 namespace { | |
| 39 | |
| 40 using testing::Message; | |
| 41 using testing::internal::linked_ptr; | |
| 42 | |
| 43 int num; | |
| 44 Message* history = NULL; | |
| 45 | |
| 46 // Class which tracks allocation/deallocation | |
| 47 class A { | |
| 48 public: | |
| 49 A(): mynum(num++) { *history << "A" << mynum << " ctor\n"; } | |
| 50 virtual ~A() { *history << "A" << mynum << " dtor\n"; } | |
| 51 virtual void Use() { *history << "A" << mynum << " use\n"; } | |
| 52 protected: | |
| 53 int mynum; | |
| 54 }; | |
| 55 | |
| 56 // Subclass | |
| 57 class B : public A { | |
| 58 public: | |
| 59 B() { *history << "B" << mynum << " ctor\n"; } | |
| 60 ~B() { *history << "B" << mynum << " dtor\n"; } | |
| 61 virtual void Use() { *history << "B" << mynum << " use\n"; } | |
| 62 }; | |
| 63 | |
| 64 class LinkedPtrTest : public testing::Test { | |
| 65 public: | |
| 66 LinkedPtrTest() { | |
| 67 num = 0; | |
| 68 history = new Message; | |
| 69 } | |
| 70 | |
| 71 virtual ~LinkedPtrTest() { | |
| 72 delete history; | |
| 73 history = NULL; | |
| 74 } | |
| 75 }; | |
| 76 | |
| 77 TEST_F(LinkedPtrTest, GeneralTest) { | |
| 78 { | |
| 79 linked_ptr<A> a0, a1, a2; | |
| 80 // Use explicit function call notation here to suppress self-assign warning. | |
| 81 a0.operator=(a0); | |
| 82 a1 = a2; | |
| 83 ASSERT_EQ(a0.get(), static_cast<A*>(NULL)); | |
| 84 ASSERT_EQ(a1.get(), static_cast<A*>(NULL)); | |
| 85 ASSERT_EQ(a2.get(), static_cast<A*>(NULL)); | |
| 86 ASSERT_TRUE(a0 == NULL); | |
| 87 ASSERT_TRUE(a1 == NULL); | |
| 88 ASSERT_TRUE(a2 == NULL); | |
| 89 | |
| 90 { | |
| 91 linked_ptr<A> a3(new A); | |
| 92 a0 = a3; | |
| 93 ASSERT_TRUE(a0 == a3); | |
| 94 ASSERT_TRUE(a0 != NULL); | |
| 95 ASSERT_TRUE(a0.get() == a3); | |
| 96 ASSERT_TRUE(a0 == a3.get()); | |
| 97 linked_ptr<A> a4(a0); | |
| 98 a1 = a4; | |
| 99 linked_ptr<A> a5(new A); | |
| 100 ASSERT_TRUE(a5.get() != a3); | |
| 101 ASSERT_TRUE(a5 != a3.get()); | |
| 102 a2 = a5; | |
| 103 linked_ptr<B> b0(new B); | |
| 104 linked_ptr<A> a6(b0); | |
| 105 ASSERT_TRUE(b0 == a6); | |
| 106 ASSERT_TRUE(a6 == b0); | |
| 107 ASSERT_TRUE(b0 != NULL); | |
| 108 a5 = b0; | |
| 109 a5 = b0; | |
| 110 a3->Use(); | |
| 111 a4->Use(); | |
| 112 a5->Use(); | |
| 113 a6->Use(); | |
| 114 b0->Use(); | |
| 115 (*b0).Use(); | |
| 116 b0.get()->Use(); | |
| 117 } | |
| 118 | |
| 119 a0->Use(); | |
| 120 a1->Use(); | |
| 121 a2->Use(); | |
| 122 | |
| 123 a1 = a2; | |
| 124 a2.reset(new A); | |
| 125 a0.reset(); | |
| 126 | |
| 127 linked_ptr<A> a7; | |
| 128 } | |
| 129 | |
| 130 ASSERT_STREQ( | |
| 131 "A0 ctor\n" | |
| 132 "A1 ctor\n" | |
| 133 "A2 ctor\n" | |
| 134 "B2 ctor\n" | |
| 135 "A0 use\n" | |
| 136 "A0 use\n" | |
| 137 "B2 use\n" | |
| 138 "B2 use\n" | |
| 139 "B2 use\n" | |
| 140 "B2 use\n" | |
| 141 "B2 use\n" | |
| 142 "B2 dtor\n" | |
| 143 "A2 dtor\n" | |
| 144 "A0 use\n" | |
| 145 "A0 use\n" | |
| 146 "A1 use\n" | |
| 147 "A3 ctor\n" | |
| 148 "A0 dtor\n" | |
| 149 "A3 dtor\n" | |
| 150 "A1 dtor\n", | |
| 151 history->GetString().c_str() | |
| 152 ); | |
| 153 } | |
| 154 | |
| 155 } // Unnamed namespace | |
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