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OVMS3-idf/components/nvs_flash/test/test_nvs.c
Sagar Bijwe 5a27a63541 nvs-flash: Support for blobs larger than half of SPI Flash sector size 
This change removes the earlier limitation of 1984 bytes for storing data-blobs.
Blobs larger than the sector size are split and stored on multiple sectors.
For this purpose, two new datatypes (multi-page index and multi-page data) are
added for entries stored in the sectors. The underlying read, write, erase and find
operations are modified to support these large blobs. The change is transparent
to users of the library and no special APIs need to be used to store these large
blobs.
2018-07-20 00:13:15 +05:30

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#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#include <stdlib.h>
#include <time.h>
#include "unity.h"
#include "nvs.h"
#include "nvs_flash.h"
#include "esp_partition.h"
#include "esp_log.h"
#include <string.h>
static const char* TAG = "test_nvs";
TEST_CASE("various nvs tests", "[nvs]")
{
nvs_handle handle_1;
esp_err_t err = nvs_flash_init();
if (err == ESP_ERR_NVS_NO_FREE_PAGES) {
ESP_LOGW(TAG, "nvs_flash_init failed (0x%x), erasing partition and retrying", err);
const esp_partition_t* nvs_partition = esp_partition_find_first(
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, NULL);
assert(nvs_partition && "partition table must have an NVS partition");
ESP_ERROR_CHECK( esp_partition_erase_range(nvs_partition, 0, nvs_partition->size) );
err = nvs_flash_init();
}
ESP_ERROR_CHECK( err );
TEST_ESP_ERR(nvs_open("test_namespace1", NVS_READONLY, &handle_1), ESP_ERR_NVS_NOT_FOUND);
TEST_ESP_ERR(nvs_set_i32(handle_1, "foo", 0x12345678), ESP_ERR_NVS_INVALID_HANDLE);
nvs_close(handle_1);
TEST_ESP_OK(nvs_open("test_namespace2", NVS_READWRITE, &handle_1));
TEST_ESP_OK(nvs_erase_all(handle_1));
TEST_ESP_OK(nvs_set_i32(handle_1, "foo", 0x12345678));
TEST_ESP_OK(nvs_set_i32(handle_1, "foo", 0x23456789));
nvs_handle handle_2;
TEST_ESP_OK(nvs_open("test_namespace3", NVS_READWRITE, &handle_2));
TEST_ESP_OK(nvs_erase_all(handle_2));
TEST_ESP_OK(nvs_set_i32(handle_2, "foo", 0x3456789a));
const char* str = "value 0123456789abcdef0123456789abcdef";
TEST_ESP_OK(nvs_set_str(handle_2, "key", str));
int32_t v1;
TEST_ESP_OK(nvs_get_i32(handle_1, "foo", &v1));
TEST_ASSERT_EQUAL_INT32(0x23456789, v1);
int32_t v2;
TEST_ESP_OK(nvs_get_i32(handle_2, "foo", &v2));
TEST_ASSERT_EQUAL_INT32(0x3456789a, v2);
char buf[strlen(str) + 1];
size_t buf_len = sizeof(buf);
TEST_ESP_OK(nvs_get_str(handle_2, "key", buf, &buf_len));
TEST_ASSERT_EQUAL_INT32(0, strcmp(buf, str));
nvs_close(handle_1);
// check that deinit does not leak memory if some handles are still open
nvs_flash_deinit();
nvs_close(handle_2);
}
TEST_CASE("calculate used and free space", "[nvs]")
{
TEST_ESP_ERR(nvs_get_stats(NULL, NULL), ESP_ERR_INVALID_ARG);
nvs_stats_t stat1;
nvs_stats_t stat2;
TEST_ESP_ERR(nvs_get_stats(NULL, &stat1), ESP_ERR_NVS_NOT_INITIALIZED);
TEST_ASSERT_TRUE(stat1.free_entries == 0);
TEST_ASSERT_TRUE(stat1.namespace_count == 0);
TEST_ASSERT_TRUE(stat1.total_entries == 0);
TEST_ASSERT_TRUE(stat1.used_entries == 0);
nvs_handle handle = 0;
size_t h_count_entries;
TEST_ESP_ERR(nvs_get_used_entry_count(handle, &h_count_entries), ESP_ERR_NVS_INVALID_HANDLE);
TEST_ASSERT_TRUE(h_count_entries == 0);
esp_err_t err = nvs_flash_init();
if (err == ESP_ERR_NVS_NO_FREE_PAGES) {
ESP_LOGW(TAG, "nvs_flash_init failed (0x%x), erasing partition and retrying", err);
const esp_partition_t* nvs_partition = esp_partition_find_first(
ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, NULL);
assert(nvs_partition && "partition table must have an NVS partition");
ESP_ERROR_CHECK( esp_partition_erase_range(nvs_partition, 0, nvs_partition->size) );
err = nvs_flash_init();
}
ESP_ERROR_CHECK( err );
// erase if have any namespace
TEST_ESP_OK(nvs_get_stats(NULL, &stat1));
if(stat1.namespace_count != 0) {
TEST_ESP_OK(nvs_flash_erase());
TEST_ESP_OK(nvs_flash_deinit());
TEST_ESP_OK(nvs_flash_init());
}
// after erase. empty partition
TEST_ESP_OK(nvs_get_stats(NULL, &stat1));
TEST_ASSERT_TRUE(stat1.free_entries != 0);
TEST_ASSERT_TRUE(stat1.namespace_count == 0);
TEST_ASSERT_TRUE(stat1.total_entries != 0);
TEST_ASSERT_TRUE(stat1.used_entries == 0);
// create namespace test_k1
nvs_handle handle_1;
TEST_ESP_OK(nvs_open("test_k1", NVS_READWRITE, &handle_1));
TEST_ESP_OK(nvs_get_stats(NULL, &stat2));
TEST_ASSERT_TRUE(stat2.free_entries + 1 == stat1.free_entries);
TEST_ASSERT_TRUE(stat2.namespace_count == 1);
TEST_ASSERT_TRUE(stat2.total_entries == stat1.total_entries);
TEST_ASSERT_TRUE(stat2.used_entries == 1);
// create pair key-value com
TEST_ESP_OK(nvs_set_i32(handle_1, "com", 0x12345678));
TEST_ESP_OK(nvs_get_stats(NULL, &stat1));
TEST_ASSERT_TRUE(stat1.free_entries + 1 == stat2.free_entries);
TEST_ASSERT_TRUE(stat1.namespace_count == 1);
TEST_ASSERT_TRUE(stat1.total_entries == stat2.total_entries);
TEST_ASSERT_TRUE(stat1.used_entries == 2);
// change value in com
TEST_ESP_OK(nvs_set_i32(handle_1, "com", 0x01234567));
TEST_ESP_OK(nvs_get_stats(NULL, &stat2));
TEST_ASSERT_TRUE(stat2.free_entries == stat1.free_entries);
TEST_ASSERT_TRUE(stat2.namespace_count == 1);
TEST_ASSERT_TRUE(stat2.total_entries != 0);
TEST_ASSERT_TRUE(stat2.used_entries == 2);
// create pair key-value ru
TEST_ESP_OK(nvs_set_i32(handle_1, "ru", 0x00FF00FF));
TEST_ESP_OK(nvs_get_stats(NULL, &stat1));
TEST_ASSERT_TRUE(stat1.free_entries + 1 == stat2.free_entries);
TEST_ASSERT_TRUE(stat1.namespace_count == 1);
TEST_ASSERT_TRUE(stat1.total_entries != 0);
TEST_ASSERT_TRUE(stat1.used_entries == 3);
// amount valid pair in namespace 1
size_t h1_count_entries;
TEST_ESP_OK(nvs_get_used_entry_count(handle_1, &h1_count_entries));
TEST_ASSERT_TRUE(h1_count_entries == 2);
nvs_handle handle_2;
// create namespace test_k2
TEST_ESP_OK(nvs_open("test_k2", NVS_READWRITE, &handle_2));
TEST_ESP_OK(nvs_get_stats(NULL, &stat2));
TEST_ASSERT_TRUE(stat2.free_entries + 1 == stat1.free_entries);
TEST_ASSERT_TRUE(stat2.namespace_count == 2);
TEST_ASSERT_TRUE(stat2.total_entries == stat1.total_entries);
TEST_ASSERT_TRUE(stat2.used_entries == 4);
// create pair key-value
TEST_ESP_OK(nvs_set_i32(handle_2, "su1", 0x00000001));
TEST_ESP_OK(nvs_set_i32(handle_2, "su2", 0x00000002));
TEST_ESP_OK(nvs_set_i32(handle_2, "sus", 0x00000003));
TEST_ESP_OK(nvs_get_stats(NULL, &stat1));
TEST_ASSERT_TRUE(stat1.free_entries + 3 == stat2.free_entries);
TEST_ASSERT_TRUE(stat1.namespace_count == 2);
TEST_ASSERT_TRUE(stat1.total_entries == stat2.total_entries);
TEST_ASSERT_TRUE(stat1.used_entries == 7);
TEST_ASSERT_TRUE(stat1.total_entries == (stat1.used_entries + stat1.free_entries));
// amount valid pair in namespace 2
size_t h2_count_entries;
TEST_ESP_OK(nvs_get_used_entry_count(handle_2, &h2_count_entries));
TEST_ASSERT_TRUE(h2_count_entries == 3);
TEST_ASSERT_TRUE(stat1.used_entries == (h1_count_entries + h2_count_entries + stat1.namespace_count));
nvs_close(handle_1);
nvs_close(handle_2);
size_t temp = h2_count_entries;
TEST_ESP_ERR(nvs_get_used_entry_count(handle_1, &h2_count_entries), ESP_ERR_NVS_INVALID_HANDLE);
TEST_ASSERT_TRUE(h2_count_entries == 0);
h2_count_entries = temp;
TEST_ESP_ERR(nvs_get_used_entry_count(handle_1, NULL), ESP_ERR_INVALID_ARG);
nvs_handle handle_3;
// create namespace test_k3
TEST_ESP_OK(nvs_open("test_k3", NVS_READWRITE, &handle_3));
TEST_ESP_OK(nvs_get_stats(NULL, &stat2));
TEST_ASSERT_TRUE(stat2.free_entries + 1 == stat1.free_entries);
TEST_ASSERT_TRUE(stat2.namespace_count == 3);
TEST_ASSERT_TRUE(stat2.total_entries == stat1.total_entries);
TEST_ASSERT_TRUE(stat2.used_entries == 8);
// create pair blobs
uint32_t blob[12];
TEST_ESP_OK(nvs_set_blob(handle_3, "bl1", &blob, sizeof(blob)));
TEST_ESP_OK(nvs_get_stats(NULL, &stat1));
TEST_ASSERT_TRUE(stat1.free_entries + 4 == stat2.free_entries);
TEST_ASSERT_TRUE(stat1.namespace_count == 3);
TEST_ASSERT_TRUE(stat1.total_entries == stat2.total_entries);
TEST_ASSERT_TRUE(stat1.used_entries == 12);
// amount valid pair in namespace 2
size_t h3_count_entries;
TEST_ESP_OK(nvs_get_used_entry_count(handle_3, &h3_count_entries));
TEST_ASSERT_TRUE(h3_count_entries == 4);
TEST_ASSERT_TRUE(stat1.used_entries == (h1_count_entries + h2_count_entries + h3_count_entries + stat1.namespace_count));
nvs_close(handle_3);
TEST_ESP_OK(nvs_flash_erase());
TEST_ESP_OK(nvs_flash_deinit());
}
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