// Copyright (c) 2019 Google LLC
//
// 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.

#ifndef TEST_FUZZ_FUZZ_TEST_UTIL_H_
#define TEST_FUZZ_FUZZ_TEST_UTIL_H_

#include "gtest/gtest.h"

#include "source/opt/build_module.h"
#include "source/opt/ir_context.h"
#include "spirv-tools/libspirv.h"

namespace spvtools {
namespace fuzz {

// Returns true if and only if the given binaries are bit-wise equal.
bool IsEqual(spv_target_env env, const std::vector<uint32_t>& expected_binary,
             const std::vector<uint32_t>& actual_binary);

// Assembles the given text and returns true if and only if the resulting binary
// is bit-wise equal to the given binary.
bool IsEqual(spv_target_env env, const std::string& expected_text,
             const std::vector<uint32_t>& actual_binary);

// Assembles the given text and turns the given IR into binary, then returns
// true if and only if the resulting binaries are bit-wise equal.
bool IsEqual(spv_target_env env, const std::string& expected_text,
             const opt::IRContext* actual_ir);

// Turns the given IRs into binaries, then returns true if and only if the
// resulting binaries are bit-wise equal.
bool IsEqual(spv_target_env env, const opt::IRContext* ir_1,
             const opt::IRContext* ir_2);

// Assembles the given IR context and returns true if and only if
// the resulting binary is valid.
bool IsValid(spv_target_env env, const opt::IRContext* ir);

// Assembles the given IR context, then returns its disassembly as a string.
// Useful for debugging.
std::string ToString(spv_target_env env, const opt::IRContext* ir);

// Assembly options for writing fuzzer tests.  It simplifies matters if
// numeric ids do not change.
const uint32_t kFuzzAssembleOption =
    SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS;
// Disassembly options for writing fuzzer tests.
const uint32_t kFuzzDisassembleOption =
    SPV_BINARY_TO_TEXT_OPTION_NO_HEADER | SPV_BINARY_TO_TEXT_OPTION_INDENT;

}  // namespace fuzz
}  // namespace spvtools

#endif  // TEST_FUZZ_FUZZ_TEST_UTIL_H_