/***
* ==++==
*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed 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.
*
* ==--==
* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*
* streams_tests.h
*
* Common routines for streams tests.
*
* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
****/
#pragma once
#include <system_error>
namespace tests { namespace functional { namespace streams {
template<typename CharType>
void test_stream_length(concurrency::streams::basic_istream<CharType> istr, size_t length)
{
using namespace concurrency::streams;
auto curr = istr.tell();
auto t1 = (curr != static_cast<typename basic_istream<CharType>::pos_type>(basic_istream<CharType>::traits::eof()));
VERIFY_IS_TRUE(t1);
auto end = istr.seek(0, std::ios_base::end);
VERIFY_IS_TRUE(end != static_cast<typename basic_istream<CharType>::pos_type>(basic_istream<CharType>::traits::eof()));
auto len = end - curr;
VERIFY_ARE_EQUAL(len, length);
{
auto curr2 = istr.tell();
VERIFY_IS_TRUE(curr != static_cast<typename basic_istream<CharType>::pos_type>(basic_istream<CharType>::traits::eof()));
auto end2 = istr.seek(0, std::ios_base::end);
VERIFY_IS_TRUE(end != static_cast<typename basic_istream<CharType>::pos_type>(basic_istream<CharType>::traits::eof()));
auto len2 = end2 - curr2;
VERIFY_ARE_EQUAL(len2, 0);
}
auto newpos = istr.seek(curr);
VERIFY_IS_TRUE(newpos != static_cast<typename basic_istream<CharType>::pos_type>(basic_istream<CharType>::traits::eof()));
VERIFY_ARE_EQUAL(curr, newpos);
}
// Helper function to verify std::system_error is thrown with correct error code
#define VERIFY_THROWS_SYSTEM_ERROR(__expression, __code) \
UNITTEST_MULTILINE_MACRO_BEGIN \
try \
{ \
__expression; \
VERIFY_IS_TRUE(false, "Expected std::system_error not thrown"); \
} \
catch (const std::system_error &_exc) \
{ \
VERIFY_IS_TRUE(std::string(_exc.what()).size() > 0); \
/* The reason we can't directly compare with the given std::errc code is because*/ \
/* on Windows the STL implementation of error categories are NOT unique across*/ \
/* dll boundaries.*/ \
const std::error_condition _condFound = _exc.code().default_error_condition(); \
VERIFY_ARE_EQUAL(static_cast<int>(__code), _condFound.value()); \
} \
catch(...) \
{ \
VERIFY_IS_TRUE(false, "Exception other than std::system_error thrown"); \
} \
UNITTEST_MULTILINE_MACRO_END
}}}