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#!/usr/bin/cmake -P
## Copyright(c) 2017-2020, Intel Corporation
##
## Redistribution  and  use  in source  and  binary  forms,  with  or  without
## modification, are permitted provided that the following conditions are met:
##
## * Redistributions of  source code  must retain the  above copyright notice,
##   this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright notice,
##   this list of conditions and the following disclaimer in the documentation
##   and/or other materials provided with the distribution.
## * Neither the name  of Intel Corporation  nor the names of its contributors
##   may be used to  endorse or promote  products derived  from this  software
##   without specific prior written permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,  BUT NOT LIMITED TO,  THE
## IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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## LIABLE  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL,  SPECIAL,  EXEMPLARY,  OR
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## ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,  EVEN IF ADVISED OF THE
## POSSIBILITY OF SUCH DAMAGE

check_cxx_compiler_flag("-Wno-sign-compare" CXX_SUPPORTS_NO_SIGN_COMPARE)

set(OPAE_TEST_LIBRARIES test_system fpga_db
    CACHE LIST "OPAE test libs." FORCE)

function(opae_load_gtest)
    message(STATUS "Trying to fetch gtest through git...")
    find_package(Git REQUIRED)

    include(ExternalProject)

    # Download and install GoogleTest
    ExternalProject_Add(
      gtest
      GIT_REPOSITORY "https://github.com/google/googletest"
      GIT_TAG "release-1.8.0"
      UPDATE_COMMAND ""
      PREFIX ${CMAKE_CURRENT_BINARY_DIR}/gtest
      CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON
      # Disable install step
      INSTALL_COMMAND "")

    set(gtest_root "${CMAKE_CURRENT_BINARY_DIR}/gtest/src/gtest/googletest")
    message(STATUS "gtest located at: ${gtest_root}")

    # Create a libgtest target to be used as a dependency by test programs
    add_library(libgtest IMPORTED STATIC GLOBAL)
    add_library(libgtest_main IMPORTED STATIC GLOBAL)
    add_dependencies(libgtest gtest)
    add_dependencies(libgtest_main gtest)

    # Get GTest source and binary directories from CMake project
    ExternalProject_Get_Property(gtest source_dir binary_dir)

    # Set libgtest properties
    set_target_properties(libgtest PROPERTIES
        "IMPORTED_LOCATION" "${binary_dir}/googlemock/gtest/libgtest.a"
        "IMPORTED_LINK_INTERFACE_LIBRARIES" "${CMAKE_THREAD_LIBS_INIT}")
    # Set libgtest_main properties
    set_target_properties(libgtest_main PROPERTIES
        "IMPORTED_LOCATION" "${binary_dir}/googlemock/gtest/libgtest_main.a"
        "IMPORTED_LINK_INTERFACE_LIBRARIES" "${CMAKE_THREAD_LIBS_INIT}")

    # Export gtest variables
    set(GTEST_ROOT "${gtest_root}" CACHE PATH "GTest root dir." FORCE)
    set(GTEST_INCLUDE_DIRS "${gtest_root}/include"
        CACHE PATH "GTest include dir." FORCE)
    set(GTEST_MAIN_LIBRARY "libgtest_main"
        CACHE PATH "GTest main lib." FORCE)
    set(GTEST_LIBRARIES "libgtest"
        CACHE PATH "GTest test lib." FORCE)
    set(GTEST_BOTH_LIBRARIES libgtest_main libgtest
        CACHE LIST "GTest both libs." FORCE) 
    set(GTEST_FOUND TRUE CACHE BOOL "GTest found?" FORCE)
endfunction()

function(opae_test_add)
    set(options TEST_FPGAD)
    set(oneValueArgs TARGET)
    set(multiValueArgs SOURCE LIBS)
    cmake_parse_arguments(OPAE_TEST_ADD "${options}"
        "${oneValueArgs}" "${multiValueArgs}" ${ARGN})

    if(OPAE_ENABLE_MOCK)
        set(MOCK_C ${opae-test_ROOT}/framework/mock/mock.c)
    endif()

    add_executable(${OPAE_TEST_ADD_TARGET}
        ${OPAE_TEST_ADD_SOURCE} ${MOCK_C})

    set_target_properties(${OPAE_TEST_ADD_TARGET}
        PROPERTIES
            CXX_STANDARD 11
            CXX_STANDARD_REQUIRED YES
            CXX_EXTENSIONS NO)
    target_compile_definitions(${OPAE_TEST_ADD_TARGET}
        PRIVATE
            HAVE_CONFIG_H=1)
    if(CMAKE_BUILD_TYPE STREQUAL "Debug")
        target_compile_definitions(${OPAE_TEST_ADD_TARGET}
            PRIVATE
                LIBOPAE_DEBUG=1)
    endif()
    if(CXX_SUPPORTS_NO_SIGN_COMPARE)
        target_compile_options(${OPAE_TEST_ADD_TARGET}
            PRIVATE -Wno-sign-compare)
    endif()

    target_include_directories(${OPAE_TEST_ADD_TARGET}
        PUBLIC
            $<BUILD_INTERFACE:${OPAE_INCLUDE_PATH}>
            $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/include>
            $<INSTALL_INTERFACE:include>
        PRIVATE
            ${OPAE_LIBS_ROOT}
            ${OPAE_LIBS_ROOT}/plugins/xfpga
            ${OPAE_LIBS_ROOT}/libopae-c
            ${opae-test_ROOT}/framework
            ${GTEST_INCLUDE_DIRS})

    if(${OPAE_TEST_ADD_TEST_FPGAD})
        target_include_directories(${OPAE_TEST_ADD_TARGET}
            PRIVATE
                ${opae-test_ROOT}/framework/mock/test_fpgad)
    endif(${OPAE_TEST_ADD_TEST_FPGAD})

    target_link_libraries(${OPAE_TEST_ADD_TARGET}
        ${CMAKE_THREAD_LIBS_INIT}
        ${OPAE_TEST_LIBRARIES}
        ${libjson-c_LIBRARIES}
        ${libuuid_LIBRARIES}
        ${GTEST_BOTH_LIBRARIES}
        ${OPAE_TEST_ADD_LIBS})

    opae_coverage_build(TARGET ${OPAE_TEST_ADD_TARGET}
        SOURCE ${OPAE_TEST_ADD_SOURCE})

    add_test(
        NAME ${OPAE_TEST_ADD_TARGET}
        COMMAND $<TARGET_FILE:${OPAE_TEST_ADD_TARGET}>
        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
    )
endfunction()

function(opae_test_add_static_lib)
    set(options )
    set(oneValueArgs TARGET)
    set(multiValueArgs SOURCE LIBS)
    cmake_parse_arguments(OPAE_TEST_ADD_STATIC_LIB "${options}"
        "${oneValueArgs}" "${multiValueArgs}" ${ARGN})

    add_library(${OPAE_TEST_ADD_STATIC_LIB_TARGET} STATIC
        ${OPAE_TEST_ADD_STATIC_LIB_SOURCE})

    target_include_directories(${OPAE_TEST_ADD_STATIC_LIB_TARGET}
        PUBLIC
            $<BUILD_INTERFACE:${OPAE_INCLUDE_PATH}>
            $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/include>
            $<INSTALL_INTERFACE:include>
        PRIVATE
            ${OPAE_LIBS_ROOT}
            ${OPAE_LIBS_ROOT}/plugins/xfpga
            ${OPAE_LIBS_ROOT}/libopae-c)

    set_property(TARGET ${OPAE_TEST_ADD_STATIC_LIB_TARGET}
        PROPERTY
            POSITION_INDEPENDENT_CODE ON)
    target_compile_definitions(${OPAE_TEST_ADD_STATIC_LIB_TARGET}
        PRIVATE
            HAVE_CONFIG_H=1
            PIC=1
            STATIC=)
    if(CMAKE_BUILD_TYPE STREQUAL "Debug")
        target_compile_definitions(${OPAE_TEST_ADD_STATIC_LIB_TARGET}
            PRIVATE
                LIBOPAE_DEBUG=1)
    endif()

    target_link_libraries(${OPAE_TEST_ADD_STATIC_LIB_TARGET}
        ${OPAE_TEST_ADD_STATIC_LIB_LIBS})

    opae_coverage_build(TARGET ${OPAE_TEST_ADD_STATIC_LIB_TARGET}
        SOURCE ${OPAE_TEST_ADD_STATIC_LIB_SOURCE})
endfunction()