refcount-test.c++ (2138B)
1 // Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors 2 // Licensed under the MIT License: 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a copy 5 // of this software and associated documentation files (the "Software"), to deal 6 // in the Software without restriction, including without limitation the rights 7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 // copies of the Software, and to permit persons to whom the Software is 9 // furnished to do so, subject to the following conditions: 10 // 11 // The above copyright notice and this permission notice shall be included in 12 // all copies or substantial portions of the Software. 13 // 14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20 // THE SOFTWARE. 21 22 #include "refcount.h" 23 #include <kj/compat/gtest.h> 24 25 namespace kj { 26 27 struct SetTrueInDestructor: public Refcounted { 28 SetTrueInDestructor(bool* ptr): ptr(ptr) {} 29 ~SetTrueInDestructor() { *ptr = true; } 30 31 bool* ptr; 32 }; 33 34 TEST(Refcount, Basic) { 35 bool b = false; 36 Own<SetTrueInDestructor> ref1 = kj::refcounted<SetTrueInDestructor>(&b); 37 EXPECT_FALSE(ref1->isShared()); 38 Own<SetTrueInDestructor> ref2 = kj::addRef(*ref1); 39 EXPECT_TRUE(ref1->isShared()); 40 Own<SetTrueInDestructor> ref3 = kj::addRef(*ref2); 41 EXPECT_TRUE(ref1->isShared()); 42 43 EXPECT_FALSE(b); 44 ref1 = Own<SetTrueInDestructor>(); 45 EXPECT_TRUE(ref2->isShared()); 46 EXPECT_FALSE(b); 47 ref3 = Own<SetTrueInDestructor>(); 48 EXPECT_FALSE(ref2->isShared()); 49 EXPECT_FALSE(b); 50 ref2 = Own<SetTrueInDestructor>(); 51 EXPECT_TRUE(b); 52 53 #if defined(KJ_DEBUG) && !KJ_NO_EXCEPTIONS 54 b = false; 55 SetTrueInDestructor obj(&b); 56 EXPECT_ANY_THROW(addRef(obj)); 57 #endif 58 } 59 60 } // namespace kj