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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /sal/qa/rtl/ref/rtl_ref.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | sal/qa/rtl/ref/rtl_ref.cxx | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/sal/qa/rtl/ref/rtl_ref.cxx b/sal/qa/rtl/ref/rtl_ref.cxx new file mode 100644 index 000000000..2bf7c9803 --- /dev/null +++ b/sal/qa/rtl/ref/rtl_ref.cxx @@ -0,0 +1,115 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include <rtl/ref.hxx> +#include <sal/types.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> +#include <cppunit/plugin/TestPlugIn.h> + +namespace rtl_ref +{ + +namespace { + +class MoveTestClass +{ +private: + bool m_bIncFlag; + long m_nRef; +public: + MoveTestClass(): m_bIncFlag(false), m_nRef(0) { } + + // There should never be more than two references to this class as it + // is used as a test class for move functions. One reference being the + // original reference and the second being the test reference + void acquire() + { + if(m_bIncFlag) + { + ++m_nRef; + m_bIncFlag = false; + } + else + CPPUNIT_FAIL("RC was incremented when in should not have been"); + } + + void release() { --m_nRef; } + + long use_count() { return m_nRef; } + + void set_inc_flag() { m_bIncFlag = true; } +}; + +} + +static rtl::Reference< MoveTestClass > get_reference( MoveTestClass* pcTestClass ) +{ + // constructor will increment the reference count + pcTestClass->set_inc_flag(); + rtl::Reference< MoveTestClass > tmp(pcTestClass); + return tmp; +} + +class TestReferenceRefCounting : public CppUnit::TestFixture +{ + void testMove() + { + MoveTestClass cTestClass; + + // constructor will increment the reference count + cTestClass.set_inc_flag(); + rtl::Reference< MoveTestClass > test1( &cTestClass ); + + // move should not increment the reference count + rtl::Reference< MoveTestClass > test2( std::move(test1) ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("test2.use_count() == 1", + static_cast<long>(1), test2->use_count()); + + // test1 now contains a null pointer + CPPUNIT_ASSERT_MESSAGE("!test1.is()", + !test1.is()); // NOLINT(bugprone-use-after-move) + + // function return should move the reference + test2 = get_reference( &cTestClass ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("test2.use_count() == 1", + static_cast<long>(1), test2->use_count()); + + // normal copy + test2->set_inc_flag(); + test1 = test2; + CPPUNIT_ASSERT_EQUAL_MESSAGE("test2.use_count() == 2", + static_cast<long>(2), test2->use_count()); + + // use count should decrement + test2 = rtl::Reference< MoveTestClass >(); + CPPUNIT_ASSERT_EQUAL_MESSAGE("test1.use_count() == 1", + static_cast<long>(1), test1->use_count()); + + // move of a null pointer should not cause an error + test1 = std::move(test2); + + CPPUNIT_ASSERT_MESSAGE("!test1.is()", + !test1.is()); + CPPUNIT_ASSERT_MESSAGE("!test2.is()", + !test2.is()); // NOLINT(bugprone-use-after-move) + + CPPUNIT_ASSERT_EQUAL_MESSAGE("cTestClass.use_count() == 0", + static_cast<long>(0), cTestClass.use_count()); + } + + CPPUNIT_TEST_SUITE(TestReferenceRefCounting); + CPPUNIT_TEST(testMove); + CPPUNIT_TEST_SUITE_END(); +}; + +} // namespace rtl_ref +CPPUNIT_TEST_SUITE_REGISTRATION(rtl_ref::TestReferenceRefCounting); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |