esp-idf/components/nvs_flash/test_nvs_host/test_nvs_storage.cpp

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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.
#include "catch.hpp"
#include <cstring>
#include "nvs_test_api.h"
#include "nvs_storage.hpp"
#include "nvs_partition_manager.hpp"
#include "spi_flash_emulation.h"

#include <iostream>

using namespace std;
using namespace nvs;

TEST_CASE("Storage iterator recognizes blob with VerOffset::VER_1_OFFSET", "[nvs_storage]")
{
    const uint32_t NVS_FLASH_SECTOR = 6;
    const uint32_t NVS_FLASH_SECTOR_COUNT_MIN = 3;
    SpiFlashEmulator emu(10);

    REQUIRE(NVSPartitionManager::get_instance()->init_custom("test", NVS_FLASH_SECTOR, NVS_FLASH_SECTOR_COUNT_MIN)
            == ESP_OK);

    uint8_t blob [] = {0x0, 0x1, 0x2, 0x3};
    uint8_t blob_new [] = {0x3, 0x2, 0x1, 0x0};
    Storage *storage = NVSPartitionManager::get_instance()->lookup_storage_from_name("test");
    uint8_t ns_index;
    storage->createOrOpenNamespace("test_ns", true, ns_index);

    CHECK(storage->writeItem(ns_index, ItemType::BLOB, "test_blob", blob, sizeof(blob)) == ESP_OK);

    // changing provokes a blob with version offset 1 (VerOffset::VER_1_OFFSET)
    CHECK(storage->writeItem(ns_index, ItemType::BLOB, "test_blob", blob_new, sizeof(blob_new)) == ESP_OK);

    nvs_opaque_iterator_t it;
    it.storage = storage;
    it.type = NVS_TYPE_ANY;

    // Central check: does the iterator recognize the blob with version 1?
    REQUIRE(storage->findEntry(&it, "test_ns"));

    CHECK(string(it.entry_info.namespace_name) == string("test_ns"));
    CHECK(string(it.entry_info.key) == string("test_blob"));
    CHECK(it.entry_info.type == NVS_TYPE_BLOB);

    REQUIRE(NVSPartitionManager::get_instance()->deinit_partition("test") == ESP_OK);
}