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/*
* Copyright (c) 2023 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef CKW_VALIDATION_TESTS_COMMON_KERNELWRITERINTERCEPTOR_H
#define CKW_VALIDATION_TESTS_COMMON_KERNELWRITERINTERCEPTOR_H
#include <string>
#include <utility>
namespace ckw
{
/** This class provides the ability to capture only the code changed after a point
* and compares that part of code with the expected value.
*
* It is useful for testing purpose when a particular sequence of instructions is interested
* while the rest of the initialization code is out of scope.
*/
template <typename T>
class KernelWriterInterceptor : public T
{
public:
template <typename... TArgs>
KernelWriterInterceptor(const TArgs &&...args)
: T(std::forward<TArgs>(args)...)
{
}
/** Mark this point in the source code as the start position to capture.
* Only source code added after this function is considered when check_add_code is called.
*/
void start_capture_code()
{
_start_code = this->body_source_code();
}
/** Compare the source code added after start_capture_code is called the the specified expected code. */
bool check_added_code(const std::string &expected_added_code)
{
const auto &end_code = this->body_source_code();
// Code can only grow over time.
if(end_code.length() < _start_code.length())
{
return false;
}
// New code must be added to the source code without changing the already existed code.
if(end_code.substr(0, _start_code.length()) != _start_code)
{
return false;
}
// The newly added code must match the expected value.
if(end_code.substr(_start_code.length(), end_code.length() - _start_code.length()) != expected_added_code)
{
return false;
}
return true;
}
private:
std::string _start_code{};
};
} // namespace ckw
#endif // CKW_VALIDATION_TESTS_COMMON_KERNELWRITERINTERCEPTOR_H
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