| /* |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| #include "tscore/Ptr.h" |
| #include "tscore/TestBox.h" |
| |
| struct PtrObject : RefCountObj { |
| PtrObject(unsigned *_c) : count(_c) { ++(*count); } |
| ~PtrObject() override { --(*count); } |
| unsigned *count; |
| }; |
| |
| REGRESSION_TEST(Ptr_detach)(RegressionTest *t, int /* atype ATS_UNUSED */, int *pstatus) |
| { |
| TestBox box(t, pstatus); |
| box = REGRESSION_TEST_PASSED; |
| unsigned alive = 0; |
| |
| Ptr<PtrObject> p1 = make_ptr(new PtrObject(&alive)); |
| PtrObject *p2 = p1.detach(); |
| |
| box.check(p1.get() == nullptr, "Ptr<T>::detach NULLs the stored pointer"); |
| box.check(p2->refcount() == 1, "Ptr<T>::detach preserves the refcount"); |
| |
| // Note that there's no symmetric reattach. |
| p1 = p2; |
| box.check(p2->refcount() == 2, "reattaching increments the refcount again"); |
| p1->refcount_dec(); |
| } |
| |
| REGRESSION_TEST(Ptr_clear)(RegressionTest *t, int /* atype ATS_UNUSED */, int *pstatus) |
| { |
| TestBox box(t, pstatus); |
| box = REGRESSION_TEST_PASSED; |
| unsigned alive = 0; |
| |
| Ptr<PtrObject> p1 = make_ptr(new PtrObject(&alive)); |
| box.check(alive == 1, "we have a live object"); |
| p1.clear(); |
| box.check(p1.get() == nullptr, "Ptr<T>::clear NULLs the pointer"); |
| box.check(alive == 0, "Ptr<T>::clear drops the refcount"); |
| |
| p1 = make_ptr(new PtrObject(&alive)); |
| box.check(alive == 1, "we have a live object"); |
| p1 = nullptr; |
| box.check(alive == 0, "assigning NULL drops the refcount"); |
| } |
| |
| REGRESSION_TEST(Ptr_refcount)(RegressionTest *t, int /* atype ATS_UNUSED */, int *pstatus) |
| { |
| TestBox box(t, pstatus); |
| box = REGRESSION_TEST_PASSED; |
| unsigned alive = 0; |
| |
| { |
| Ptr<PtrObject> p1 = make_ptr(new PtrObject(&alive)); |
| |
| box.check(p1->refcount() == 1, "initial refcount is 1"); |
| |
| Ptr<PtrObject> p2(p1); |
| box.check(p1->refcount() == 2, "initial refcount is 1"); |
| |
| Ptr<PtrObject> p3 = p1; |
| } |
| |
| // Everything goes out of scope, so the refcounts should drop to zero. |
| box.check(alive == 0, "refcounts dropped"); |
| } |
| |
| REGRESSION_TEST(Ptr_bool)(RegressionTest *t, int /* atype ATS_UNUSED */, int *pstatus) |
| { |
| TestBox box(t, pstatus); |
| box = REGRESSION_TEST_PASSED; |
| unsigned alive = 0; |
| |
| Ptr<PtrObject> none; |
| Ptr<PtrObject> some = make_ptr(new PtrObject(&alive)); |
| |
| box.check(!none, "Empty Ptr<T> is false"); |
| box.check(bool(some), "Non-empty Ptr<T> is true"); |
| } |