multiprecision: sophisticated randomized tests

Author: ioxid

crypto3/libs/multiprecision/test/CMakeLists.txt

@@ -15,6 +15,27 @@ cm_test_link_libraries(
     Boost::unit_test_framework
 )
 
+set(GENERATED_TEST_DATA_DIR ${CMAKE_CURRENT_BINARY_DIR}/generated)
+
+set(GENERATED_FILES
+    "include/generated_test_data/big_uint_randomized_test_instances.hpp"
+    "big_uint_randomized_test_cases.json"
+    "big_mod_randomized_test_cases.json"
+)
+
+list(TRANSFORM GENERATED_FILES PREPEND ${GENERATED_TEST_DATA_DIR}/)
+
+find_package(Python COMPONENTS Interpreter)
+
+add_custom_command(
+    OUTPUT ${GENERATED_FILES}
+    COMMAND ${Python_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/generate_test_data.py ${GENERATED_TEST_DATA_DIR}
+    DEPENDS generate_test_data.py
+    VERBATIM
+)
+
+add_custom_target(generated_test_data DEPENDS ${GENERATED_FILES})
+
 macro(define_multiprecision_test_variant name disable_intrinsics disable_int128)
     set(test_name "${CURRENT_PROJECT_NAME}-")
 
@@ -52,7 +73,9 @@ macro(define_multiprecision_test_variant name disable_intrinsics disable_int128)
         target_compile_options(${test_name} PRIVATE "-fconstexpr-ops-limit=4294967295")
     endif()
 
-    target_compile_definitions(${test_name} PRIVATE TEST_DATA_DIR="${CMAKE_CURRENT_SOURCE_DIR}/data/")
+    add_dependencies(${test_name} generated_test_data)
+    target_include_directories(${test_name} PRIVATE ${GENERATED_TEST_DATA_DIR}/include)
+    target_compile_definitions(${test_name} PRIVATE TEST_DATA_DIR="${GENERATED_TEST_DATA_DIR}")
 
     if (${disable_intrinsics})
         target_compile_definitions(${test_name} PRIVATE NIL_CO3_MP_DISABLE_INTRINSICS)

crypto3/libs/multiprecision/test/big_mod_randomized.cpp

@@ -41,7 +41,7 @@ std::vector<T> as_vector(const boost::property_tree::ptree &pt) {
 template<typename T>
 auto test_dataset(const std::string &test_name) {
     static std::string test_data =
-        std::string(TEST_DATA_DIR) + R"(big_mod_randomized.json)";
+        std::string(TEST_DATA_DIR) + "/big_mod_randomized_test_cases.json";
     boost::property_tree::ptree test_dataset;
     boost::property_tree::read_json(test_data, test_dataset);