Function get_handcrafted_file

subprojects/llama.cpp/tests/test-gguf.cpp:163–426

}

static FILE * get_handcrafted_file(const unsigned int seed, const enum handcrafted_file_type hft, const int extra_bytes = 0) {
    FILE * file = tmpfile();

    if (!file) {
        return file;
    }

    std::mt19937 rng(seed);
    uint32_t alignment = GGUF_DEFAULT_ALIGNMENT;

    if (hft == HANDCRAFTED_HEADER_BAD_MAGIC) {
        const char bad_magic[4] = {'F', 'U', 'G', 'G'};
        helper_write(file, bad_magic, sizeof(bad_magic));
    } else {
        helper_write(file, GGUF_MAGIC, 4);
    }

    if (hft == HANDCRAFTED_HEADER_BAD_VERSION_0) {
        const uint32_t version = 0;
        helper_write(file, version);
    } else if (hft == HANDCRAFTED_HEADER_BAD_VERSION_1) {
        const uint32_t version = 1;
        helper_write(file, version);
    } else if (hft == HANDCRAFTED_HEADER_BAD_VERSION_FUTURE) {
        const uint32_t version = GGUF_VERSION + 1;
        helper_write(file, version);
    } else {
        const uint32_t version = GGUF_VERSION;
        helper_write(file, version);
    }

    std::vector<tensor_config_t> tensor_configs;
    if (hft >= offset_has_tensors) {
        tensor_configs = get_tensor_configs(rng);
    }

    if (hft == HANDCRAFTED_HEADER_BAD_N_TENSORS) {
        const uint64_t n_tensors = -1;
        helper_write(file, n_tensors);
    } else {
        const uint64_t n_tensors = tensor_configs.size();
        helper_write(file, n_tensors);
    }

    std::vector<std::pair<enum gguf_type, enum gguf_type>> kv_types;
    if (hft >= offset_has_kv) {
        kv_types = get_kv_types(rng);
    }
    {
        uint64_t n_kv = kv_types.size();
        if (hft == HANDCRAFTED_KV_BAD_ALIGN      ||
            hft == HANDCRAFTED_TENSORS_BAD_ALIGN || hft == HANDCRAFTED_TENSORS_CUSTOM_ALIGN ||
            hft == HANDCRAFTED_DATA_BAD_ALIGN    || hft == HANDCRAFTED_DATA_CUSTOM_ALIGN) {

            n_kv += 1;
        } else if (hft == HANDCRAFTED_HEADER_BAD_N_KV) {
            n_kv = -1;
        }