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Diffstat (limited to '')
| -rw-r--r-- | o3tl/qa/test-cow_wrapper.cxx | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/o3tl/qa/test-cow_wrapper.cxx b/o3tl/qa/test-cow_wrapper.cxx new file mode 100644 index 000000000..b5d4936d5 --- /dev/null +++ b/o3tl/qa/test-cow_wrapper.cxx @@ -0,0 +1,263 @@ +/* -*- 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/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#include <sal/types.h> +#include <cppunit/TestAssert.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> +#include <cppunit/plugin/TestPlugIn.h> + +#include "cow_wrapper_clients.hxx" + +using namespace ::o3tl; +using namespace ::o3tltests; + + +class cow_wrapper_test : public CppUnit::TestFixture +{ +public: + template< class T > void test( T& rTestObj1, T& rTestObj2, T& rTestObj3 ) + { + CPPUNIT_ASSERT_MESSAGE("rTestObj1 is unique", + rTestObj1.is_unique() ); + CPPUNIT_ASSERT_MESSAGE("rTestObj2 is unique", + rTestObj2.is_unique() ); + CPPUNIT_ASSERT_MESSAGE("rTestObj3 is unique", + rTestObj3.is_unique() ); + + CPPUNIT_ASSERT_MESSAGE("rTestObj1 != rTestObj2", + rTestObj1 != rTestObj2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj2 != rTestObj3", + rTestObj2 != rTestObj3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1 != rTestObj3", + rTestObj1 != rTestObj3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1 < rTestObj2", + rTestObj1 < rTestObj2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj2 < rTestObj3", + rTestObj2 < rTestObj3 ); + + rTestObj2 = rTestObj1; + rTestObj3 = rTestObj1; + CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj2", + rTestObj1 == rTestObj2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj3", + rTestObj1 == rTestObj3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1.use_count() == 3", + rTestObj1.use_count() == 3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj2.use_count() == 3", + rTestObj2.use_count() == 3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj3.use_count() == 3", + rTestObj3.use_count() == 3 ); + + rTestObj2.makeUnique(); + CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj2", + rTestObj1 == rTestObj2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj3", + rTestObj1 == rTestObj3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1.use_count() == 2", + rTestObj1.use_count() == 2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj2.use_count() == 1", + rTestObj2.use_count() == 1 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj2.is_unique()", + rTestObj2.is_unique() ); + CPPUNIT_ASSERT_MESSAGE("rTestObj3.use_count() == 2", + rTestObj3.use_count() == 2 ); + + rTestObj2.swap( rTestObj3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj2", + rTestObj1 == rTestObj2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj3", + rTestObj1 == rTestObj3 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj1.use_count() == 2", + rTestObj1.use_count() == 2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj2.use_count() == 2", + rTestObj2.use_count() == 2 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj3.use_count() == 1", + rTestObj3.use_count() == 1 ); + CPPUNIT_ASSERT_MESSAGE("rTestObj3.is_unique()", + rTestObj3.is_unique() ); + } + + void testCowWrapper() + { + // setup + cow_wrapper_client1 aTestObj1; + cow_wrapper_client1 aTestObj2; + cow_wrapper_client1 aTestObj3; + + cow_wrapper_client2 aTestObj4; + cow_wrapper_client2 aTestObj5; + cow_wrapper_client2 aTestObj6; + + cow_wrapper_client3 aTestObj7; + cow_wrapper_client3 aTestObj8; + cow_wrapper_client3 aTestObj9; + + { + aTestObj1 = cow_wrapper_client1( 1 ); + CPPUNIT_ASSERT_EQUAL(1, aTestObj1.queryUnmodified()); + aTestObj2.modify( 2 ); + CPPUNIT_ASSERT_EQUAL(2, aTestObj2.queryUnmodified()); + aTestObj3.modify( 3 ); + CPPUNIT_ASSERT_EQUAL(3, aTestObj3.queryUnmodified()); + + aTestObj4 = cow_wrapper_client2( 4 ); + CPPUNIT_ASSERT_EQUAL(4, aTestObj4.queryUnmodified()); + aTestObj5.modify( 5 ); + CPPUNIT_ASSERT_EQUAL(5, aTestObj5.queryUnmodified()); + aTestObj6.modify( 6 ); + CPPUNIT_ASSERT_EQUAL(6, aTestObj6.queryUnmodified()); + + aTestObj7 = cow_wrapper_client3( 7 ); + CPPUNIT_ASSERT_EQUAL(7, aTestObj7.queryUnmodified()); + aTestObj8.modify( 8 ); + CPPUNIT_ASSERT_EQUAL(8, aTestObj8.queryUnmodified()); + aTestObj9.modify( 9 ); + CPPUNIT_ASSERT_EQUAL(9, aTestObj9.queryUnmodified()); + } + // all three temporaries are dead now + + // test + test( aTestObj1, aTestObj2, aTestObj3 ); + test( aTestObj4, aTestObj5, aTestObj6 ); + test( aTestObj7, aTestObj8, aTestObj9 ); + } + + void testStaticDefault() + { + cow_wrapper_client4 aTestObj1; + cow_wrapper_client4 aTestObj2; + cow_wrapper_client4 aTestObj3(4); + + CPPUNIT_ASSERT_MESSAGE("aTestObj1.is_default()", + aTestObj1.is_default() ); + CPPUNIT_ASSERT_MESSAGE("aTestObj2.is_default()", + aTestObj2.is_default() ); + CPPUNIT_ASSERT_MESSAGE("!aTestObj3.is_default()", + !aTestObj3.is_default() ); + aTestObj1 = aTestObj2; + CPPUNIT_ASSERT_MESSAGE("aTestObj1.is_default() #2", + aTestObj1.is_default() ); + CPPUNIT_ASSERT_MESSAGE("aTestObj2.is_default() #2", + aTestObj2.is_default() ); + aTestObj1 = aTestObj3; + CPPUNIT_ASSERT_MESSAGE("!aTestObj1.is_default()", + !aTestObj1.is_default() ); + } + + void testRefCounting() + { + // add scope to ensure appropriate number of calls to + // the reference counting policy have been made + { + // if any incrementing/decrementing occurs a failure + // will occur + cow_wrapper_client5 aTestObj1(1); + cow_wrapper_client5 aTestObj2( std::move( aTestObj1 ) ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2.use_count()", + static_cast<sal_uInt32>(1), aTestObj2.use_count() ); + + // the following should increment + BogusRefCountPolicy::s_bShouldIncrement = true; + cow_wrapper_client5 aTestObj3( aTestObj2 ); + CPPUNIT_ASSERT_MESSAGE("s_bShouldIncrement == 0", + !BogusRefCountPolicy::s_bShouldIncrement ); + + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3.use_count()", + static_cast<sal_uInt32>(2), aTestObj3.use_count() ); + { + cow_wrapper_client5 aTestObj4; + // the following should decrement the lvalue and then increment the rvalue + BogusRefCountPolicy::s_bShouldIncrement = true; + BogusRefCountPolicy::s_bShouldDecrement = true; + aTestObj4 = aTestObj2; + CPPUNIT_ASSERT_MESSAGE("s_bShouldIncrement == 0", + !BogusRefCountPolicy::s_bShouldIncrement ); + CPPUNIT_ASSERT_MESSAGE("s_bShouldDecrement == 0", + !BogusRefCountPolicy::s_bShouldDecrement ); + + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2.use_count()", + static_cast<sal_uInt32>(3), aTestObj2.use_count() ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3.use_count()", + static_cast<sal_uInt32>(3), aTestObj3.use_count() ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj4.use_count()", + static_cast<sal_uInt32>(3), aTestObj4.use_count() ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2 == aTestObj3", + aTestObj3, aTestObj2 ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3 == aTestObj4", + aTestObj4, aTestObj3 ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2 == aTestObj4", + aTestObj4, aTestObj2 ); + + // only decrement the lvalue before assignment + BogusRefCountPolicy::s_bShouldDecrement = true; + aTestObj4 = cow_wrapper_client5( 4 ); + CPPUNIT_ASSERT_MESSAGE("s_bShouldIncrement == 0", + !BogusRefCountPolicy::s_bShouldIncrement ); + + // only one call should be made to the ref counting policy's + // decrementing function at the end of the scope + BogusRefCountPolicy::s_bShouldDecrement = true; + } + CPPUNIT_ASSERT_MESSAGE("s_bShouldDecrement == 0", + !BogusRefCountPolicy::s_bShouldDecrement ); + + // self assignment + // aTestObj2 is defunct afterwards, one decrement happens + BogusRefCountPolicy::s_bShouldDecrement = true; + aTestObj3 = std::move( aTestObj2 ); + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2.use_count()", + static_cast<sal_uInt32>(0), aTestObj2.use_count() ); // NOLINT(bugprone-use-after-move) + CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3.use_count()", + static_cast<sal_uInt32>(1), aTestObj3.use_count() ); + + cow_wrapper_client5 aTestObj5; + + // only decrement the lvalue before assignment + BogusRefCountPolicy::s_bShouldDecrement = true; + aTestObj3 = std::move( aTestObj5 ); + CPPUNIT_ASSERT_MESSAGE("s_bShouldDecrement == 0", + !BogusRefCountPolicy::s_bShouldDecrement); + + // one call should be made to the ref-counting policy's + // decrementing function at the end of the scope. Only + // aTestObj3 still holds a valid instance + BogusRefCountPolicy::s_nEndOfScope = 1; + } + CPPUNIT_ASSERT_EQUAL_MESSAGE("s_EndOfScope", + static_cast<sal_uInt32>(0), BogusRefCountPolicy::s_nEndOfScope ); + } + + // Change the following lines only, if you add, remove or rename + // member functions of the current class, + // because these macros are need by auto register mechanism. + + CPPUNIT_TEST_SUITE(cow_wrapper_test); + CPPUNIT_TEST(testCowWrapper); + CPPUNIT_TEST(testStaticDefault); + CPPUNIT_TEST(testRefCounting); + CPPUNIT_TEST_SUITE_END(); +}; + + +CPPUNIT_TEST_SUITE_REGISTRATION(cow_wrapper_test); + +CPPUNIT_PLUGIN_IMPLEMENT(); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |