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# Copyright (c) the JPEG XL Project
#
# 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.
# Enable tests in third_party/ as well.
enable_testing()
include(CTest)
set(SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party")
if(BUILD_TESTING)
# Add GTest from source and alias it to what the find_package(GTest) workflow
# defines. Omitting googletest/ directory would require it to be available in
# the base system instead, but it would work just fine. This makes packages
# using GTest and calling find_package(GTest) actually work.
if (EXISTS "${SOURCE_DIR}/googletest/CMakeLists.txt" AND
NOT JPEGXL_FORCE_SYSTEM_GTEST)
add_subdirectory(third_party/googletest EXCLUDE_FROM_ALL)
set(GTEST_ROOT "${SOURCE_DIR}/googletest/googletest")
set(GTEST_INCLUDE_DIR "$<TARGET_PROPERTY:INCLUDE_DIRECTORIES,gtest>"
CACHE STRING "")
set(GMOCK_INCLUDE_DIR "$<TARGET_PROPERTY:INCLUDE_DIRECTORIES,gmock>")
set(GTEST_LIBRARY "$<TARGET_FILE:gtest>")
set(GTEST_MAIN_LIBRARY "$<TARGET_FILE:gtest_main>")
add_library(GTest::gtest ALIAS gtest)
add_library(GTest::GTest ALIAS gtest)
add_library(GTest::gtest_main ALIAS gtest_main)
add_library(GTest::Main ALIAS gtest_main)
set_target_properties(gtest PROPERTIES POSITION_INDEPENDENT_CODE TRUE)
set_target_properties(gmock PROPERTIES POSITION_INDEPENDENT_CODE TRUE)
set_target_properties(gtest_main PROPERTIES POSITION_INDEPENDENT_CODE TRUE)
set_target_properties(gmock_main PROPERTIES POSITION_INDEPENDENT_CODE TRUE)
# googletest doesn't compile clean with clang-cl (-Wundef)
if (WIN32 AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set_target_properties(gtest PROPERTIES COMPILE_FLAGS "-Wno-error")
set_target_properties(gmock PROPERTIES COMPILE_FLAGS "-Wno-error")
set_target_properties(gtest_main PROPERTIES COMPILE_FLAGS "-Wno-error")
set_target_properties(gmock_main PROPERTIES COMPILE_FLAGS "-Wno-error")
endif ()
configure_file("${SOURCE_DIR}/googletest/LICENSE"
${PROJECT_BINARY_DIR}/LICENSE.googletest COPYONLY)
else()
if(JPEGXL_DEP_LICENSE_DIR)
configure_file("${JPEGXL_DEP_LICENSE_DIR}/googletest/copyright"
${PROJECT_BINARY_DIR}/LICENSE.googletest COPYONLY)
endif() # JPEGXL_DEP_LICENSE_DIR
endif()
find_package(GTest)
if (NOT GTEST_FOUND)
set(BUILD_TESTING OFF CACHE BOOL "Build tests" FORCE)
message(SEND_ERROR "GTest not found. Install googletest package "
"(libgtest-dev) in the system or download googletest to "
"third_party/googletest from https://github.com/google/googletest ."
"To disable tests instead re-run cmake with -DBUILD_TESTING=OFF.")
endif() # NOT GTEST_FOUND
# Look for gmock in the system too.
if (NOT DEFINED GMOCK_INCLUDE_DIR)
find_path(
GMOCK_INCLUDE_DIR "gmock/gmock.h"
HINTS ${GTEST_INCLUDE_DIRS})
if (NOT GMOCK_INCLUDE_DIR)
set(BUILD_TESTING OFF CACHE BOOL "Build tests" FORCE)
message(SEND_ERROR "GMock not found. Install googletest package "
"(libgmock-dev) in the system or download googletest to "
"third_party/googletest from https://github.com/google/googletest ."
"To disable tests instead re-run cmake with -DBUILD_TESTING=OFF.")
else()
message(STATUS "Found GMock: ${GMOCK_INCLUDE_DIR}")
endif() # NOT GMOCK_INCLUDE_DIR
endif() # NOT DEFINED GMOCK_INCLUDE_DIR
endif() # BUILD_TESTING
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