Function test_template_py

subprojects/llama.cpp/tests/test-jinja.cpp:1820–1872

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static void test_template_py(testing & t, const std::string & name, const std::string & tmpl, const json & vars, const std::string & expect) {
    t.test(name, [&tmpl, &vars, &expect](testing & t) {
        // Prepare arguments
        std::string tmpl_json = json(tmpl).dump();
        std::string vars_json = vars.dump();

#ifdef _WIN32
        const char * python_executable = "python.exe";
#else
        const char * python_executable = "python3";
#endif

        const char * command_line[] = {python_executable, "-c", py_script.c_str(), tmpl_json.c_str(), vars_json.c_str(), NULL};

        struct subprocess_s subprocess;
        int options = subprocess_option_combined_stdout_stderr
                    | subprocess_option_no_window
                    | subprocess_option_inherit_environment
                    | subprocess_option_search_user_path;
        int result = subprocess_create(command_line, options, &subprocess);

        if (result != 0) {
            t.log("Failed to create subprocess, error code: " + std::to_string(result));
            t.assert_true("subprocess creation", false);
            return;
        }

        // Read output
        std::string output;
        char buffer[1024];
        FILE * p_stdout = subprocess_stdout(&subprocess);
        while (fgets(buffer, sizeof(buffer), p_stdout)) {
            output += buffer;
        }

        int process_return;
        subprocess_join(&subprocess, &process_return);
        subprocess_destroy(&subprocess);

        if (process_return != 0) {
            t.log("Python script failed with exit code: " + std::to_string(process_return));
            t.log("Output: " + output);
            t.assert_true("python execution", false);
            return;
        }

        if (!t.assert_true("Template render mismatch", expect == output)) {
            t.log("Template: " + json(tmpl).dump());
            t.log("Expected: " + json(expect).dump());
            t.log("Python  : " + json(output).dump());
        }
    });
}

static void test_template(testing & t, const std::string & name, const std::string & tmpl, const json & vars, const std::string & expect) {
    if (g_python_mode) {