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/***
* Copyright (C) Microsoft. All rights reserved.
* Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
*
* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*
* streams_tests.h
*
* Common routines for streams tests.
*
* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
****/
#pragma once
#include <system_error>
#include <unittestpp.h>
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
} // namespace streams
} // namespace functional
} // namespace tests
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