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/* -*- 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/.
*/
// activate support for detecting errors instead of getting compile errors
#define RTL_STRING_UNITTEST_CONCAT
#include <sal/types.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <rtl/string.hxx>
#include <rtl/strbuf.hxx>
#include <rtl/ustring.hxx>
#include <rtl/ustrbuf.hxx>
#include <typeinfo>
bool rtl_string_unittest_invalid_concat = false;
using namespace rtl;
namespace std
{
template< typename charT, typename traits > static std::basic_ostream<charT, traits> &
operator <<(
std::basic_ostream<charT, traits> & stream, const std::type_info& info )
{
return stream << info.name();
}
} // namespace
namespace test { namespace ostring {
class StringConcat : public CppUnit::TestFixture
{
private:
void checkConcat();
void checkEnsureCapacity();
void checkAppend();
void checkInvalid();
CPPUNIT_TEST_SUITE(StringConcat);
CPPUNIT_TEST(checkConcat);
CPPUNIT_TEST(checkEnsureCapacity);
CPPUNIT_TEST(checkAppend);
CPPUNIT_TEST(checkInvalid);
CPPUNIT_TEST_SUITE_END();
};
void test::ostring::StringConcat::checkConcat()
{
// All the extra () are to protect commas against being treated as separators of macro arguments.
CPPUNIT_ASSERT_EQUAL( OString(), OString(OString() + OString()));
CPPUNIT_ASSERT_EQUAL( OString( "foobar" ), OString( OString( "foo" ) + OString( "bar" )));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OString, OString > )), typeid( OString( "foo" ) + OString( "bar" )));
CPPUNIT_ASSERT_EQUAL( OString( "foobar" ), OString( OString( "foo" ) + "bar" ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OString, const char[ 4 ] > )), typeid( OString( "foo" ) + "bar" ));
CPPUNIT_ASSERT_EQUAL( OString( "foobarbaz" ), OString( OString( "foo" ) + "bar" + "baz" ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OStringConcat< OString, const char[ 4 ] >, const char[ 4 ] > )), typeid( OString( "foo" ) + "bar" + "baz" ));
CPPUNIT_ASSERT_EQUAL( OString( "foobar" ), OString( OStringLiteral( "foo" ) + "bar" ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OStringLiteral, const char[ 4 ] > )), typeid( OStringLiteral( "foo" ) + "bar" ));
CPPUNIT_ASSERT_EQUAL( OString( "foobar" ), OString( OStringLiteral( "foo" ) + static_cast<const char*>("bar") ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OStringLiteral, const char* > )), typeid( OStringLiteral( "foo" ) + static_cast<const char*>("bar") ));
const char d1[] = "xyz";
char d2[] = "abc";
const char* d3 = d1;
char* d4 = d2;
CPPUNIT_ASSERT_EQUAL( OString( "fooxyz" ), OString( OString( "foo" ) + d1 ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OString, const char[ 4 ] > )), typeid( OString( "foo" ) + d1 ));
CPPUNIT_ASSERT_EQUAL( OString( "fooabc" ), OString( OString( "foo" ) + d2 ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OString, char[ 4 ] > )), typeid( OString( "foo" ) + d2 ));
CPPUNIT_ASSERT_EQUAL( OString( "fooxyz" ), OString( OString( "foo" ) + d3 ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OString, const char* > )), typeid( OString( "foo" ) + d3 ));
CPPUNIT_ASSERT_EQUAL( OString( "fooabc" ), OString( OString( "foo" ) + d4 ));
CPPUNIT_ASSERT_EQUAL(( typeid( OStringConcat< OString, char* > )), typeid( OString( "foo" ) + d4 ));
}
void test::ostring::StringConcat::checkEnsureCapacity()
{
rtl_String* str = nullptr;
rtl_string_newFromLiteral( &str, "test", strlen( "test" ), 0 );
CPPUNIT_ASSERT_EQUAL( sal_Int32( 4 ), str->length );
CPPUNIT_ASSERT_EQUAL( 1, int( str->refCount ));
rtl_String* oldStr = str;
rtl_string_ensureCapacity( &str, 4 ); // should be no-op
CPPUNIT_ASSERT_EQUAL( sal_Int32( 4 ), str->length );
CPPUNIT_ASSERT_EQUAL( 1, int( str->refCount ));
CPPUNIT_ASSERT_EQUAL( str, oldStr );
rtl_string_acquire( oldStr );
CPPUNIT_ASSERT_EQUAL( 2, int( str->refCount ));
rtl_string_ensureCapacity( &str, 4 );
CPPUNIT_ASSERT_EQUAL( sal_Int32( 4 ), str->length );
CPPUNIT_ASSERT_EQUAL( 1, int( str->refCount ));
// a copy was forced because of refcount
CPPUNIT_ASSERT( oldStr != str );
CPPUNIT_ASSERT_EQUAL( 0, strcmp( oldStr->buffer, str->buffer ) );
CPPUNIT_ASSERT_EQUAL( 1, int( oldStr->refCount ));
rtl_string_release( str );
str = oldStr;
rtl_string_acquire( oldStr );
rtl_string_ensureCapacity( &str, 1024 );
CPPUNIT_ASSERT_EQUAL( sal_Int32( 4 ), str->length ); // size is still 4
CPPUNIT_ASSERT_EQUAL( 1, int( str->refCount ));
CPPUNIT_ASSERT( oldStr != str );
CPPUNIT_ASSERT_EQUAL( 0, strcmp( oldStr->buffer, str->buffer ) );
CPPUNIT_ASSERT_EQUAL( 1, int( oldStr->refCount ));
strcpy( str->buffer, "01234567890123456789" ); // but there should be extra capacity
str->length += 20;
rtl_string_release( str );
rtl_string_release( oldStr );
}
void test::ostring::StringConcat::checkAppend()
{
OString str( "foo" );
str += OStringLiteral( "bar" ) + "baz";
CPPUNIT_ASSERT_EQUAL( OString( "foobarbaz" ), str );
OStringBuffer buf( "foo" );
buf.append( OStringLiteral( "bar" ) + "baz" );
CPPUNIT_ASSERT_EQUAL( OString( "foobarbaz" ), buf.makeStringAndClear());
}
#define INVALID_CONCAT( expression ) \
( \
rtl_string_unittest_invalid_concat = false, \
( void ) OString( expression ), \
rtl_string_unittest_invalid_concat )
void test::ostring::StringConcat::checkInvalid()
{
CPPUNIT_ASSERT( !INVALID_CONCAT( OString() + OString()));
CPPUNIT_ASSERT( INVALID_CONCAT( OString( "a" ) + OStringBuffer( "b" )));
CPPUNIT_ASSERT( INVALID_CONCAT( OString( "a" ) + OUString( "b" )));
CPPUNIT_ASSERT( INVALID_CONCAT( OString( "a" ) + OUStringBuffer( "b" )));
CPPUNIT_ASSERT( INVALID_CONCAT( OString( "a" ) + OUStringLiteral( "b" )));
CPPUNIT_ASSERT( INVALID_CONCAT( OString( "a" ) + 1 ));
rtl_String* rs = nullptr;
rtl_uString* rus = nullptr;
CPPUNIT_ASSERT( INVALID_CONCAT( OUString( "b" ) + rs ));
CPPUNIT_ASSERT( INVALID_CONCAT( OUString( "b" ) + rus ));
#if 0
// Should fail to compile, to avoid use of OStringConcat lvalues that
// contain dangling references to temporaries:
auto const conc = OStringLiteral("foo") + "bar";
(void) OString(conc);
#endif
}
}} // namespace
CPPUNIT_TEST_SUITE_REGISTRATION(test::ostring::StringConcat);
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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