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Make sure tests can be run offline and by adding new cmake switch #4851

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Make sure tests can be run offline and by adding new cmake switch #4851

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7 changes: 6 additions & 1 deletion cmake/download_test_data.cmake
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Original file line number Diff line number Diff line change
@@ -1,14 +1,19 @@
set(JSON_TEST_DATA_URL https://github.com/nlohmann/json_test_data)
set(JSON_TEST_DATA_VERSION 3.1.0)

include(ExternalProject)
set(JSON_TEST_DATA_DIR /usr/share/json_test_data)

if(EXISTS ${JSON_TEST_DATA_DIR})
set(JSON_TestDataDirectory ${JSON_TEST_DATA_DIR})
endif()

# if variable is set, use test data from given directory rather than downloading them
if(JSON_TestDataDirectory)
message(STATUS "Using test data in ${JSON_TestDataDirectory}.")
add_custom_target(download_test_data)
file(WRITE ${CMAKE_BINARY_DIR}/include/test_data.hpp "#define TEST_DATA_DIRECTORY \"${JSON_TestDataDirectory}\"\n")
else()
include(ExternalProject)
# create a header with the path to the downloaded test data
file(WRITE ${CMAKE_BINARY_DIR}/include/test_data.hpp "#define TEST_DATA_DIRECTORY \"${CMAKE_BINARY_DIR}/test_files\"\n")

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7 changes: 5 additions & 2 deletions tests/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -192,6 +192,9 @@ if (JSON_Install)
endif()

add_subdirectory(cmake_add_subdirectory)
add_subdirectory(cmake_fetch_content)
add_subdirectory(cmake_fetch_content2)
if (NOT JSON_No_Internet)
add_subdirectory(cmake_fetch_content)
add_subdirectory(cmake_fetch_content2)
endif()

add_subdirectory(cmake_target_include_directories)