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# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0.
include(CTest)
include(AwsSanitizers)
option(ENABLE_FUZZ_TESTS "Build and run fuzz tests" OFF)
set(FUZZ_TESTS_MAX_TIME 60 CACHE STRING "Max time to run each fuzz test")
# Adds fuzz tests to ctest
# Options:
# fuzz_files: The list of fuzz test files
# other_files: Other files to link into each fuzz test
# corpus_dir: directory where corpus files can be found
function(aws_add_fuzz_tests fuzz_files other_files corpus_dir)
if(ENABLE_FUZZ_TESTS)
if(NOT ENABLE_SANITIZERS)
message(FATAL_ERROR "ENABLE_FUZZ_TESTS is set but ENABLE_SANITIZERS is set to OFF")
endif()
aws_check_sanitizer(fuzzer)
if (NOT HAS_SANITIZER_fuzzer)
message(FATAL_ERROR "ENABLE_FUZZ_TESTS is set but the current compiler (${CMAKE_CXX_COMPILER_ID}) doesn't support -fsanitize=fuzzer")
endif()
foreach(test_file ${fuzz_files})
get_filename_component(TEST_FILE_NAME ${test_file} NAME_WE)
set(FUZZ_BINARY_NAME ${PROJECT_NAME}-fuzz-${TEST_FILE_NAME})
add_executable(${FUZZ_BINARY_NAME} ${test_file} ${other_files})
target_link_libraries(${FUZZ_BINARY_NAME} PRIVATE ${PROJECT_NAME})
aws_set_common_properties(${FUZZ_BINARY_NAME})
aws_add_sanitizers(${FUZZ_BINARY_NAME} SANITIZERS "fuzzer")
target_compile_definitions(${FUZZ_BINARY_NAME} PRIVATE AWS_UNSTABLE_TESTING_API=1)
target_include_directories(${FUZZ_BINARY_NAME} PRIVATE ${CMAKE_CURRENT_LIST_DIR})
if (corpus_dir)
file(TO_NATIVE_PATH "${corpus_dir}/${TEST_FILE_NAME}" TEST_CORPUS_DIR)
endif()
if (TEST_CORPUS_DIR AND (EXISTS "${TEST_CORPUS_DIR}"))
add_test(NAME fuzz_${TEST_FILE_NAME} COMMAND ${FUZZ_BINARY_NAME} -timeout=1 -max_total_time=${FUZZ_TESTS_MAX_TIME} "${TEST_CORPUS_DIR}")
else()
add_test(NAME fuzz_${TEST_FILE_NAME} COMMAND ${FUZZ_BINARY_NAME} -timeout=1 -max_total_time=${FUZZ_TESTS_MAX_TIME})
endif()
endforeach()
endif()
endfunction()
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