/* -*- 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: */
↑ V1048 The 'BogusRefCountPolicy::s_bShouldIncrement' variable was assigned the same value.
↑ V1048 The 'BogusRefCountPolicy::s_bShouldDecrement' variable was assigned the same value.
↑ V1048 The 'BogusRefCountPolicy::s_bShouldDecrement' variable was assigned the same value.
↑ V1048 The 'BogusRefCountPolicy::s_bShouldDecrement' variable was assigned the same value.
↑ V1048 The 'BogusRefCountPolicy::s_bShouldDecrement' variable was assigned the same value.