OVMS3-idf/components/app_update/test/test_app_desc.c

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#include <string.h>
#include "esp_ota_ops.h"
#include "unity.h"
TEST_CASE("esp_ota_get_app_elf_sha256 test", "[esp_app_desc]")
{
const int sha256_hex_len = CONFIG_APP_RETRIEVE_LEN_ELF_SHA;
char dst[sha256_hex_len + 2];
const char fill = 0xcc;
int res;
size_t len;
char ref_sha256[sha256_hex_len + 1];
const esp_app_desc_t* desc = esp_ota_get_app_description();
for (int i = 0; i < sizeof(ref_sha256) / 2; ++i) {
snprintf(ref_sha256 + 2*i, 3, "%02x", desc->app_elf_sha256[i]);
}
ref_sha256[sha256_hex_len] = 0;
printf("Ref: %s\n", ref_sha256);
memset(dst, fill, sizeof(dst));
len = sizeof(dst);
res = esp_ota_get_app_elf_sha256(dst, len);
printf("%d: %s (%d)\n", len, dst, res);
TEST_ASSERT_EQUAL(sha256_hex_len + 1, res);
TEST_ASSERT_EQUAL(0, memcmp(dst, ref_sha256, res - 1));
TEST_ASSERT_EQUAL_HEX(0, dst[sha256_hex_len]);
TEST_ASSERT_EQUAL_HEX(fill, dst[sha256_hex_len + 1]);
memset(dst, fill, sizeof(dst));
len = 9;
res = esp_ota_get_app_elf_sha256(dst, len);
printf("%d: %s (%d)\n", len, dst, res);
TEST_ASSERT_EQUAL(9, res);
TEST_ASSERT_EQUAL(0, memcmp(dst, ref_sha256, res - 1));
TEST_ASSERT_EQUAL_HEX(0, dst[8]);
TEST_ASSERT_EQUAL_HEX(fill, dst[9]);
memset(dst, fill, sizeof(dst));
len = 8;
res = esp_ota_get_app_elf_sha256(dst, len);
printf("%d: %s (%d)\n", len, dst, res);
// should output even number of characters plus '\0'
TEST_ASSERT_EQUAL(7, res);
TEST_ASSERT_EQUAL(0, memcmp(dst, ref_sha256, res - 1));
TEST_ASSERT_EQUAL_HEX(0, dst[6]);
TEST_ASSERT_EQUAL_HEX(fill, dst[7]);
TEST_ASSERT_EQUAL_HEX(fill, dst[8]);
}