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tests.c
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tests.c
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#include "acutest.h"
#define LDB_IMPL
#include "logdb.h"
void append_entries(ldb_db_t *db, uint64_t seqnum1, uint64_t seqnum2)
{
char metadata[128] = {0};
char data[128] = {0};
if (seqnum2 < seqnum1)
seqnum2 = seqnum1;
while (seqnum1 <= seqnum2)
{
snprintf(metadata, sizeof(metadata), "metadata-%d", (int) seqnum1);
snprintf(data, sizeof(data), "data-%d", (int) seqnum1);
// timestamp value equals seqnum to the ten
// examples: 9->0, 11->10, 19->10, 20->20, 321->320, etc.
ldb_entry_t entry = {
.seqnum = seqnum1,
.timestamp = seqnum1 - (seqnum1 % 10),
.metadata_len = (uint32_t) strlen(metadata) + 1,
.data_len = (uint32_t) strlen(data) + 1,
.metadata = metadata,
.data = data
};
TEST_ASSERT(ldb_append(db, &entry, 1, NULL) == LDB_OK);
seqnum1++;
}
}
void test_version(void)
{
const char *version = ldb_version();
TEST_ASSERT(version != NULL);
size_t len = strlen(version);
TEST_ASSERT(len >= 5);
TEST_ASSERT(version[0] != '.');
TEST_ASSERT(version[len-1] != '.');
size_t num_dots = 0;
for (size_t i = 0; i < len; i++) {
if (version[i] == '.')
num_dots++;
else if (!isdigit(version[i]))
TEST_ASSERT(false);
}
TEST_CHECK(num_dots == 2);
}
void test_strerror(void)
{
const char *success = ldb_strerror(LDB_OK);
TEST_ASSERT(ldb_strerror(0) == ldb_strerror(LDB_OK));
TEST_ASSERT(strcmp(ldb_strerror(0), success) == 0);
const char *unknown_error = ldb_strerror(-999);
TEST_ASSERT(unknown_error != NULL);
for (int i = 0; i < 21; i++) {
TEST_ASSERT(ldb_strerror(-i) != NULL);
TEST_ASSERT(strcmp(ldb_strerror(-i), unknown_error) != 0);
}
for (int i = 21; i < 32; i++) {
TEST_ASSERT(ldb_strerror(-i) != NULL);
TEST_ASSERT(strcmp(ldb_strerror(-i), unknown_error) == 0);
}
for (int i = 1; i < 32; i++) {
TEST_ASSERT(ldb_strerror(i) != NULL);
TEST_ASSERT(strcmp(ldb_strerror(i), success) == 0);
}
}
// Results validated using https://crccalc.com/
void test_crc32(void)
{
// abnormal cases
TEST_ASSERT(ldb_crc32(NULL, 0, 42) == 42);
TEST_ASSERT(ldb_crc32(NULL, 10, 42) == 42);
TEST_ASSERT(ldb_crc32("", 0, 42) == 42);
// basic case
const char str1[] = "hello world";
TEST_ASSERT(ldb_crc32(str1, strlen(str1), 0) == 0x0D4A1185);
// composability
const char str11[] = "hello ";
const char str12[] = "world";
size_t checksum = ldb_crc32(str11, strlen(str11), 0);
checksum = ldb_crc32(str12, strlen(str12), checksum);
TEST_ASSERT(checksum == 0x0D4A1185);
}
void test_get_millis(void)
{
uint64_t t0 = 1713331281361; // 17-apr-2024 05:21:21.361 (UTC)
uint64_t t1 = 2028864081361; // 17-apr-2034 05:21:21.361 (UTC)
TEST_ASSERT(t0 < ldb_get_millis());
TEST_ASSERT(ldb_get_millis() < t1);
}
void test_is_valid_path(void)
{
TEST_ASSERT(ldb_is_valid_path(""));
TEST_ASSERT(ldb_is_valid_path("."));
TEST_ASSERT(ldb_is_valid_path("./"));
TEST_ASSERT(ldb_is_valid_path("/tmp"));
TEST_ASSERT(ldb_is_valid_path("/tmp/"));
TEST_ASSERT(ldb_is_valid_path("//tmp"));
TEST_ASSERT(!ldb_is_valid_path(NULL));
TEST_ASSERT(!ldb_is_valid_path("/non_existent_dir/"));
TEST_ASSERT(!ldb_is_valid_path("/etc/passwd"));
}
void test_is_valid_name(void)
{
TEST_ASSERT(ldb_is_valid_name("test"));
TEST_ASSERT(ldb_is_valid_name("test_1"));
TEST_ASSERT(ldb_is_valid_name("_"));
TEST_ASSERT(ldb_is_valid_name("a"));
TEST_ASSERT(ldb_is_valid_name("abc"));
TEST_ASSERT(!ldb_is_valid_name(NULL));
TEST_ASSERT(!ldb_is_valid_name(""));
TEST_ASSERT(!ldb_is_valid_name("too_long_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"));
char name[] = "x";
for (int i = 0; i < 256; i++) {
name[0] = (char) i;
TEST_ASSERT(ldb_is_valid_name(name) == (isalnum(i) || name[0] == '_'));
}
}
void test_create_filename(void)
{
char *filename = NULL;
TEST_ASSERT(ldb_create_filename(NULL, "name", ".ext") == NULL);
TEST_ASSERT(ldb_create_filename("path", NULL, ".ext") == NULL);
TEST_ASSERT(ldb_create_filename("path", "name", NULL) == NULL);
TEST_ASSERT(ldb_create_filename("path", "", ".ext") == NULL);
filename = ldb_create_filename("path", "name", ".ext");
TEST_ASSERT(filename != NULL && strcmp(filename, "path/name.ext") == 0);
free(filename);
filename = ldb_create_filename("path/", "name", ".ext");
TEST_ASSERT(filename != NULL && strcmp(filename, "path/name.ext") == 0);
free(filename);
filename = ldb_create_filename("", "name", ".ext");
TEST_ASSERT(filename != NULL && strcmp(filename, "name.ext") == 0);
free(filename);
}
void test_close(void)
{
ldb_db_t db = {0};
TEST_ASSERT(ldb_close(NULL) == LDB_OK);
TEST_ASSERT(ldb_close(&db) == LDB_OK);
db.name = (char *) malloc(10);
db.path = (char *) malloc(10);
db.dat_path = (char *) malloc(10);
db.idx_path = (char *) malloc(10);
db.dat_fp = NULL;
db.idx_fp = NULL;
TEST_ASSERT(ldb_close(&db) == LDB_OK);
TEST_ASSERT(db.name == NULL);
TEST_ASSERT(db.path == NULL);
TEST_ASSERT(db.dat_path == NULL);
TEST_ASSERT(db.idx_path == NULL);
TEST_ASSERT(db.dat_fp == NULL);
TEST_ASSERT(db.idx_fp == NULL);
}
void test_open_invalid_args(void) {
ldb_db_t db = {0};
TEST_ASSERT(ldb_open(&db , NULL , "test", false) == LDB_ERR_ARG);
TEST_ASSERT(ldb_open(&db , "/tmp/", NULL , false) == LDB_ERR_ARG);
TEST_ASSERT(ldb_open(NULL, "/tmp/", "test", false) == LDB_ERR_ARG);
}
void test_open_invalid_path(void) {
ldb_db_t db = {0};
TEST_ASSERT(ldb_open(&db, "/etc/passwd/", "test", false) == LDB_ERR_PATH);
TEST_ASSERT(ldb_open(&db, "/non_existent_path/", "test", false) == LDB_ERR_PATH);
}
void test_open_invalid_name(void) {
ldb_db_t db = {0};
TEST_ASSERT(ldb_open(&db, "/tmp/", "", false) == LDB_ERR_NAME);
TEST_ASSERT(ldb_open(&db, "/tmp/", ".", false) == LDB_ERR_NAME);
TEST_ASSERT(ldb_open(&db, "/tmp/", "xxx-3", false) == LDB_ERR_NAME);
TEST_ASSERT(ldb_open(&db, "/tmp/", "xxx?", false) == LDB_ERR_NAME);
TEST_ASSERT(ldb_open(&db, "/tmp/", "too_long_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", false) == LDB_ERR_NAME);
}
void test_open_create_db(void)
{
ldb_db_t db = {0};
remove("test.dat");
remove("test.idx");
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
TEST_ASSERT(db.name != NULL && strcmp(db.name, "test") == 0);
TEST_ASSERT(db.path != NULL && strcmp(db.path, "") == 0);
TEST_ASSERT(db.dat_path != NULL && strcmp(db.dat_path, "test.dat") == 0);
TEST_ASSERT(db.idx_path != NULL && strcmp(db.idx_path, "test.idx") == 0);
TEST_ASSERT(db.dat_fp != NULL);
TEST_ASSERT(db.idx_fp != NULL);
TEST_ASSERT(db.state.seqnum1 == 0);
TEST_ASSERT(db.state.timestamp1 == 0);
TEST_ASSERT(db.state.seqnum2 == 0);
TEST_ASSERT(db.state.timestamp2 == 0);
TEST_ASSERT(db.dat_end == sizeof(ldb_header_dat_t));
ldb_close(&db);
}
void test_open_empty_db(void)
{
ldb_db_t db = {0};
remove("test.dat");
remove("test.idx");
// create db
ldb_create_file_dat("test.dat");
// open empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
TEST_ASSERT(db.name != NULL && strcmp(db.name, "test") == 0);
TEST_ASSERT(db.path != NULL && strcmp(db.path, "") == 0);
TEST_ASSERT(db.dat_path != NULL && strcmp(db.dat_path, "test.dat") == 0);
TEST_ASSERT(db.idx_path != NULL && strcmp(db.idx_path, "test.idx") == 0);
TEST_ASSERT(db.dat_fp != NULL);
TEST_ASSERT(db.idx_fp != NULL);
TEST_ASSERT(db.state.seqnum1 == 0);
TEST_ASSERT(db.state.timestamp1 == 0);
TEST_ASSERT(db.state.seqnum2 == 0);
TEST_ASSERT(db.state.timestamp2 == 0);
TEST_ASSERT(db.dat_end == sizeof(ldb_header_dat_t));
ldb_close(&db);
}
void test_open_invl_dat_header(void)
{
FILE *fp = NULL;
ldb_db_t db = {0};
ldb_header_dat_t header = {
.magic_number = LDB_MAGIC_NUMBER,
.format = LDB_FORMAT_1,
.text = {0}
};
remove("test.dat");
remove("test.idx");
// empty file
fp = fopen("test.dat", "w");
fclose(fp);
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_ERR_FMT_DAT);
// invalid magic numer
fp = fopen("test.dat", "w");
header.magic_number = 123;
fwrite(&header, sizeof(ldb_header_dat_t), 1, fp);
fclose(fp);
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_ERR_FMT_DAT);
// invalid file format
fp = fopen("test.dat", "w");
header.magic_number = LDB_MAGIC_NUMBER;
header.format = LDB_FORMAT_1 + 1;
fwrite(&header, sizeof(ldb_header_dat_t), 1, fp);
fclose(fp);
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_ERR_FMT_DAT);
}
void test_open_and_repair_1(void)
{
ldb_db_t db = {0};
ldb_record_dat_t record = {0};
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// writing invalid data (first record too short)
const char garbage[] = "ioscm,nswddljkh";
fwrite(garbage, sizeof(garbage), 1, db.dat_fp);
ldb_close(&db);
// incomplete record is zeroized
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
ldb_close(&db);
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// writing invalid first record
record.seqnum = 1;
record.timestamp = 0;
record.data_len = 1000; // has data length but data not added after record
record.metadata_len = 54; // has data length but data not added after record
fwrite(&record, sizeof(ldb_record_dat_t), 1, db.dat_fp);
ldb_close(&db);
// first entry zeroized
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
TEST_ASSERT(db.state.seqnum1 == 0);
ldb_close(&db);
}
void test_open_and_repair_2(void)
{
ldb_db_t db = {0};
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting 1 valid entry
const char data[32000] = {0};
ldb_entry_t entry = {
.seqnum = 10,
.timestamp = 3,
.metadata_len = 10,
.data_len = 21640,
.metadata = (char *) data,
.data = (char *) data + 10
};
TEST_ASSERT(ldb_append(&db, &entry, 1, NULL) == LDB_OK);
// inserting a partially zeroized entry
ldb_record_dat_t record = {
.seqnum = 0,
.timestamp = 0,
.metadata_len = 40,
.data_len = 400,
};
fwrite(&record, sizeof(ldb_record_dat_t), 1, db.dat_fp);
// inserting garbage
const char garbage[] = "ioscm,nswddljk";
fwrite(&garbage, sizeof(garbage), 1, db.dat_fp);
ldb_close(&db);
// incomplete record is zeroized
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
TEST_ASSERT(db.state.seqnum2 == 10);
ldb_close(&db);
}
void test_open_and_repair_3(void)
{
ldb_db_t db = {0};
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting 1 valid entry
const char data[1024] = {0};
ldb_entry_t entry = {
.seqnum = 10,
.timestamp = 3,
.metadata_len = 40,
.data_len = 400,
.metadata = (char *) data,
.data = (char *) data + 40
};
TEST_ASSERT(ldb_append(&db, &entry, 1, NULL) == LDB_OK);
// inserting 1 'valid' entry with invalid data length
ldb_record_dat_t record = {
.seqnum = entry.seqnum + 1,
.timestamp = 3,
.metadata_len = 40,
.data_len = 400,
.checksum = 999 // invalid but checked after data length
};
fwrite(&record, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record.metadata_len + record.data_len - 10, 1, db.dat_fp);
ldb_close(&db);
// second record (incomplete) is zeroized
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
TEST_ASSERT(db.state.seqnum2 == 10);
ldb_close(&db);
}
void test_open_1_entry_ok(void)
{
ldb_db_t db = {0};
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting 1 entry
const char metadata[] = "metadata-1";
const char data[] = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.";
ldb_entry_t entry = {
.seqnum = 10,
.timestamp = 3,
.metadata_len = (uint32_t) strlen(metadata),
.data_len = (uint32_t) strlen(data),
.metadata = (char *) metadata,
.data = (char *) data
};
TEST_ASSERT(ldb_append(&db, &entry, 1, NULL) == LDB_OK);
ldb_close(&db);
// open db with 1-entry (idx will be rebuild)
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
TEST_ASSERT(db.state.seqnum1 == 10);
TEST_ASSERT(db.state.timestamp1 == 3);
TEST_ASSERT(db.state.seqnum2 == 10);
TEST_ASSERT(db.state.timestamp2 == 3);
TEST_ASSERT(db.dat_end == sizeof(ldb_header_dat_t) + sizeof(ldb_record_dat_t) + entry.metadata_len + entry.data_len);
ldb_close(&db);
// open db with 1-entry (idx no rebuilded)
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
ldb_close(&db);
}
void test_open_1_entry_empty(void)
{
const char data[128] = {0};
ldb_db_t db = {0};
ldb_record_dat_t record = {0};
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting 1 entry (empty)
fwrite(&record, sizeof(ldb_record_dat_t), 1, db.dat_fp);
// inserting additional empty content
fwrite(data, sizeof(data), 1, db.dat_fp);
ldb_close(&db);
// open db with 1-entry (idx will be rebuild)
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
TEST_ASSERT(db.state.seqnum1 == 0);
TEST_ASSERT(db.state.timestamp1 == 0);
TEST_ASSERT(db.state.seqnum2 == 0);
TEST_ASSERT(db.state.timestamp2 == 0);
TEST_ASSERT(db.dat_end == sizeof(ldb_header_dat_t));
ldb_close(&db);
}
void _test_open_rollbacked_ok(bool check)
{
char data[1024] = {0};
ldb_db_t db = {0};
ldb_record_dat_t record_dat = {0};
ldb_record_idx_t record_idx = {0};
uint32_t checksum = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting 4 entries
for(int i = 10; i < 14; i++)
{
record_dat.seqnum = i;
record_dat.timestamp = 1000 + i;
record_dat.metadata_len = 6;
record_dat.data_len = 20 + i;
checksum = ldb_checksum_record(&record_dat);
record_dat.checksum = ldb_crc32(data, record_dat.metadata_len + record_dat.data_len, checksum);
record_idx.seqnum = record_dat.seqnum;
record_idx.timestamp = record_dat.timestamp;
record_idx.pos = ftell(db.dat_fp);
fwrite(&record_dat, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record_dat.metadata_len + record_dat.data_len, 1, db.dat_fp);
fwrite(&record_idx, sizeof(ldb_record_idx_t), 1, db.idx_fp);
}
// inserting rollbacked info
memset(data, 0x00, sizeof(data));
fwrite(data, 60, 1, db.dat_fp);
fwrite(data, 37, 1, db.idx_fp);
ldb_close(&db);
// open database
TEST_ASSERT(ldb_open(&db, "", "test", check) == LDB_OK);
TEST_ASSERT(db.state.seqnum1 == 10);
TEST_ASSERT(db.state.timestamp1 == 1010);
TEST_ASSERT(db.state.seqnum2 == 13);
TEST_ASSERT(db.state.timestamp2 == 1013);
ldb_close(&db);
}
void test_open_rollbacked_ok_check(void) {
_test_open_rollbacked_ok(true);
}
void test_open_rollbacked_ok_uncheck(void) {
_test_open_rollbacked_ok(false);
}
void test_open_dat_check_fails(void)
{
const char data[1024] = {0};
ldb_db_t db = {0};
ldb_record_dat_t record_dat = {0};
uint32_t checksum = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting entry-1
record_dat.seqnum = 10;
record_dat.timestamp = 10;
record_dat.metadata_len = 6;
record_dat.data_len = 20;
checksum = ldb_checksum_record(&record_dat);
record_dat.checksum = ldb_crc32(data, record_dat.metadata_len + record_dat.data_len, checksum);
fwrite(&record_dat, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record_dat.metadata_len + record_dat.data_len, 1, db.dat_fp);
// inserting entry-2 (broken sequence)
record_dat.seqnum = 16;
record_dat.timestamp = 10;
record_dat.metadata_len = 6;
record_dat.data_len = 20;
checksum = ldb_checksum_record(&record_dat);
record_dat.checksum = ldb_crc32(data, record_dat.metadata_len + record_dat.data_len, checksum);
fwrite(&record_dat, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record_dat.metadata_len + record_dat.data_len, 1, db.dat_fp);
ldb_close(&db);
// open database
TEST_ASSERT(ldb_open(&db, "", "test", true) == LDB_ERR_FMT_DAT);
}
void test_open_dat_corrupted(void)
{
const char data[1024] = {0};
ldb_db_t db = {0};
ldb_record_dat_t record_dat = {0};
uint32_t checksum = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting entry-1
record_dat.seqnum = 10;
record_dat.timestamp = 10;
record_dat.metadata_len = 6;
record_dat.data_len = 20;
checksum = ldb_checksum_record(&record_dat);
record_dat.checksum = ldb_crc32(data, record_dat.metadata_len + record_dat.data_len, checksum);
fwrite(&record_dat, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record_dat.metadata_len + record_dat.data_len, 1, db.dat_fp);
// inserting entry-2 (incorrect checksum)
record_dat.seqnum = 11;
record_dat.timestamp = 11;
record_dat.metadata_len = 6;
record_dat.data_len = 20;
checksum = ldb_checksum_record(&record_dat);
record_dat.checksum = ldb_crc32(data, record_dat.metadata_len + record_dat.data_len, checksum) + 999;
fwrite(&record_dat, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record_dat.metadata_len + record_dat.data_len, 1, db.dat_fp);
ldb_close(&db);
// open database
TEST_ASSERT(ldb_open(&db, "", "test", true) == LDB_ERR_CHECKSUM);
}
void test_open_idx_check_fails_1(void)
{
const char data[1024] = {0};
ldb_db_t db = {0};
ldb_record_dat_t record_dat = {0};
ldb_record_idx_t record_idx = {0};
uint32_t checksum = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting 4 entries
for(int i = 10; i < 14; i++)
{
record_dat.seqnum = i;
record_dat.timestamp = 1000 + i;
record_dat.metadata_len = 6;
record_dat.data_len = 20 + i;
checksum = ldb_checksum_record(&record_dat);
record_dat.checksum = ldb_crc32(data, record_dat.metadata_len + record_dat.data_len, checksum);
record_idx.seqnum = record_dat.seqnum + (i == 12 ? 5 : 0); // seqnum mismatch
record_idx.timestamp = record_dat.timestamp;
record_idx.pos = ftell(db.dat_fp);
fwrite(&record_dat, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record_dat.metadata_len + record_dat.data_len, 1, db.dat_fp);
fwrite(&record_idx, sizeof(ldb_record_idx_t), 1, db.idx_fp);
}
ldb_close(&db);
// open database (finish OK due to idx rebuild)
TEST_ASSERT(ldb_open(&db, "", "test", true) == LDB_OK);
TEST_ASSERT(db.state.seqnum1 == 10);
TEST_ASSERT(db.state.timestamp1 == 1010);
TEST_ASSERT(db.state.seqnum2 == 13);
TEST_ASSERT(db.state.timestamp2 == 1013);
ldb_close(&db);
}
void test_open_idx_check_fails_2(void)
{
char data[1024] = {0};
ldb_db_t db = {0};
ldb_record_dat_t record_dat = {0};
ldb_record_idx_t record_idx = {0};
uint32_t checksum = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// inserting 4 entries
for(int i = 10; i < 14; i++)
{
record_dat.seqnum = i;
record_dat.timestamp = 1000 + i;
record_dat.metadata_len = 6;
record_dat.data_len = 20 + i;
checksum = ldb_checksum_record(&record_dat);
record_dat.checksum = ldb_crc32(data, record_dat.metadata_len + record_dat.data_len, checksum);
record_idx.seqnum = record_dat.seqnum;
record_idx.timestamp = record_dat.timestamp;
record_idx.pos = ftell(db.dat_fp) + (i == 12 ? 5 : 0); // invalid pos
fwrite(&record_dat, sizeof(ldb_record_dat_t), 1, db.dat_fp);
fwrite(data, record_dat.metadata_len + record_dat.data_len, 1, db.dat_fp);
fwrite(&record_idx, sizeof(ldb_record_idx_t), 1, db.idx_fp);
}
ldb_close(&db);
// open database (finish OK due to idx rebuild)
TEST_ASSERT(ldb_open(&db, "", "test", true) == LDB_OK);
TEST_ASSERT(db.state.seqnum1 == 10);
TEST_ASSERT(db.state.timestamp1 == 1010);
TEST_ASSERT(db.state.seqnum2 == 13);
TEST_ASSERT(db.state.timestamp2 == 1013);
ldb_close(&db);
}
void test_alloc_free_entry(void)
{
char *ptr = NULL;
ldb_entry_t entry = {0};
TEST_ASSERT(!ldb_alloc_entry(NULL, 0, 0));
ldb_free_entry(NULL);
TEST_ASSERT(ldb_alloc_entry(&entry, 0, 0));
TEST_ASSERT(entry.data == NULL);
TEST_ASSERT(entry.metadata == NULL);
TEST_ASSERT(entry.data_len == 0);
TEST_ASSERT(entry.metadata_len == 0);
ldb_free_entry(&entry);
TEST_ASSERT(ldb_alloc_entry(&entry, 7, 11));
TEST_ASSERT(entry.metadata_len == 7);
TEST_ASSERT(entry.data_len == 11);
TEST_ASSERT((size_t)(entry.metadata) % sizeof(void*) == 0);
TEST_ASSERT((size_t)(entry.data) % sizeof(void*) == 0);
ldb_free_entry(&entry);
TEST_ASSERT(ldb_alloc_entry(&entry, 7, 11));
ptr = entry.metadata;
TEST_ASSERT(ldb_alloc_entry(&entry, 2, 5));
TEST_ASSERT(entry.metadata_len == 2);
TEST_ASSERT(entry.data_len == 5);
TEST_ASSERT(entry.metadata == ptr);
TEST_ASSERT(entry.data == ptr + 8);
ldb_free_entry(&entry);
TEST_ASSERT(ldb_alloc_entry(&entry, 0, 11));
TEST_ASSERT(entry.metadata_len == 0);
TEST_ASSERT(entry.data_len == 11);
TEST_ASSERT(entry.metadata != NULL);
TEST_ASSERT(entry.metadata == entry.data);
ptr = entry.metadata;
TEST_ASSERT(ldb_alloc_entry(&entry, 2, 5));
TEST_ASSERT(entry.metadata_len == 2);
TEST_ASSERT(entry.data_len == 5);
TEST_ASSERT(entry.metadata == ptr);
TEST_ASSERT(entry.data == ptr + sizeof(void*));
ldb_free_entry(&entry);
TEST_ASSERT(ldb_alloc_entry(&entry, 11, 0));
TEST_ASSERT(entry.metadata_len == 11);
TEST_ASSERT(entry.data_len == 0);
TEST_ASSERT(entry.metadata != NULL);
TEST_ASSERT(entry.data == entry.metadata);
ptr = entry.metadata;
// used to 'force' an allocation just after the previous one
// avoiding a realloc was done in the same place
char *aux = (char *) calloc(1000,1);
TEST_ASSERT(ldb_alloc_entry(&entry, 2, 5000));
TEST_ASSERT(entry.metadata_len == 2);
TEST_ASSERT(entry.data_len == 5000);
TEST_ASSERT(entry.metadata != ptr); // this test can fail if mem is reallocated in the same place
TEST_ASSERT((char *) entry.data == (char *) entry.metadata + sizeof(void*));
ldb_free_entry(&entry);
free(aux);
}
void test_alloc_free_entries(void)
{
ldb_entry_t entries[3] = {{0}};
// abnormal cases are considered (do nothing)
ldb_free_entries(NULL, 3);
ldb_free_entries(entries, 0);
for (int i = 0; i < 3; i++) {
entries[i].metadata = (char *) malloc(10);
entries[i].data = (char *) entries[i].metadata + 4;
}
ldb_free_entries(entries, 3);
for (int i = 0; i < 3; i++) {
TEST_ASSERT(entries[i].metadata == NULL);
TEST_ASSERT(entries[i].data == NULL);
}
}
void test_append_invalid_args(void)
{
ldb_db_t db = {0};
ldb_entry_t entry = {0};
TEST_ASSERT(ldb_append(NULL, &entry, 1, NULL) == LDB_ERR_ARG);
TEST_ASSERT(ldb_append(&db, NULL, 1, NULL) == LDB_ERR_ARG);
TEST_ASSERT(ldb_append(&db, &entry, 1, NULL) == LDB_ERR);
}
void test_append_nothing(void)
{
ldb_db_t db = {0};
ldb_entry_t entries[10];
size_t num = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// append 0 entries
TEST_ASSERT(ldb_append(&db, entries, 0, &num) == LDB_OK);
TEST_ASSERT(num == 0);
ldb_close(&db);
}
void test_append_auto(void)
{
ldb_db_t db = {0};
const size_t len = 3;
ldb_entry_t entries[len];
char buf[1024] = {0};
size_t num = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// create entries
for (size_t i = 0; i < len; i++) {
entries[i].seqnum = 0;
entries[i].timestamp = 0;
snprintf(buf, sizeof(buf), "metadata-%d", (int) i);
entries[i].metadata = strdup(buf);
entries[i].metadata_len = strlen(buf) + 1;
snprintf(buf, sizeof(buf), "data-%d", (int) i);
entries[i].data = strdup(buf);
entries[i].data_len = strlen(buf) + 1;
}
// append 3 entries
TEST_ASSERT(ldb_append(&db, entries, len, &num) == LDB_OK);
TEST_ASSERT(num == len);
TEST_ASSERT(db.state.seqnum1 == 1);
TEST_ASSERT(db.state.seqnum2 == len);
TEST_ASSERT(entries[0].seqnum == 1);
TEST_ASSERT(entries[1].seqnum == 2);
TEST_ASSERT(entries[2].seqnum == 3);
TEST_ASSERT(entries[0].timestamp > 0);
TEST_ASSERT(entries[1].timestamp > 0);
TEST_ASSERT(entries[2].timestamp > 0);
// append 3 entries
for (size_t i = 0; i < len; i++) {
entries[i].seqnum = 0;
entries[i].timestamp = 0;
}
TEST_ASSERT(ldb_append(&db, entries, len, &num) == LDB_OK);
TEST_ASSERT(num == len);
TEST_ASSERT(db.state.seqnum1 == 1);
TEST_ASSERT(db.state.seqnum2 == 2*len);
TEST_ASSERT(entries[0].seqnum == 4);
TEST_ASSERT(entries[1].seqnum == 5);
TEST_ASSERT(entries[2].seqnum == 6);
TEST_ASSERT(entries[0].timestamp > 0);
TEST_ASSERT(entries[1].timestamp > 0);
TEST_ASSERT(entries[2].timestamp > 0);
ldb_close(&db);
// dealloc entries ()
for (size_t i = 0; i < len; i++) {
free(entries[i].metadata);
free(entries[i].data);
}
}
void test_append_nominal_case(void)
{
ldb_db_t db = {0};
const size_t len = 10;
ldb_entry_t entries[len];
char buf[1024] = {0};
size_t num = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// create entries
for (size_t i = 0; i < len; i++) {
entries[i].seqnum = 10 + i;
entries[i].timestamp = 10000 + i;
snprintf(buf, sizeof(buf), "metadata-%d", (int) i);
entries[i].metadata = strdup(buf);
entries[i].metadata_len = strlen(buf) + 1;
snprintf(buf, sizeof(buf), "data-%d", (int) i);
entries[i].data = strdup(buf);
entries[i].data_len = strlen(buf) + 1;
}
TEST_ASSERT(ldb_append(&db, entries, len, &num) == LDB_OK);
TEST_ASSERT(num == len);
TEST_ASSERT(db.state.seqnum1 == 10);
TEST_ASSERT(db.state.seqnum2 == 10 + len - 1);
ldb_close(&db);
// dealloc entries ()
for (size_t i = 0; i < len; i++) {
free(entries[i].metadata);
free(entries[i].data);
}
}
void test_append_broken_sequence(void)
{
ldb_db_t db = {0};
const size_t len = 10;
ldb_entry_t entries[len];
char buf[1024] = {0};
size_t num = 0;
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
// create entries
for (size_t i = 0; i < len; i++) {
entries[i].seqnum = 10 + i + (i == 5 ? 40 : 0);
entries[i].timestamp = 10000 + i;
snprintf(buf, sizeof(buf), "metadata-%d", (int) i);
entries[i].metadata = strdup(buf);
entries[i].metadata_len = strlen(buf) + 1;
snprintf(buf, sizeof(buf), "data-%d", (int) i);
entries[i].data = strdup(buf);
entries[i].data_len = strlen(buf) + 1;
}
TEST_ASSERT(ldb_append(&db, entries, len, &num) == LDB_ERR_ENTRY_SEQNUM);
TEST_ASSERT(num == 5);
TEST_ASSERT(db.state.seqnum1 == 10);
TEST_ASSERT(db.state.seqnum2 == 10 + num - 1);
ldb_close(&db);
// dealloc entries ()
for (size_t i = 0; i < len; i++) {
free(entries[i].metadata);
free(entries[i].data);
}
}
void test_append_lack_of_data(void)
{
ldb_db_t db = {0};
ldb_entry_t entry = {
.seqnum = 10,
.timestamp = 1000,
.metadata_len = 0,
.data_len = 0,
.metadata = NULL,
.data = NULL
};
remove("test.dat");
remove("test.idx");
// create empty db
TEST_ASSERT(ldb_open(&db, "", "test", false) == LDB_OK);
entry.metadata_len = 40;
TEST_ASSERT(ldb_append(&db, &entry, 1, NULL) == LDB_ERR_ENTRY_METADATA);
entry.metadata_len = 0;
entry.data_len = 40;
TEST_ASSERT(ldb_append(&db, &entry, 1, NULL) == LDB_ERR_ENTRY_DATA);
ldb_close(&db);
}
bool check_entry(ldb_entry_t *entry, uint64_t seqnum, const char *metadata, const char *data)
{
return (entry &&
entry->seqnum == seqnum &&
entry->data_len == (data == NULL ? 0 : strlen(data) + 1) &&
entry->metadata_len == (metadata == NULL ? 0 : strlen(metadata) + 1) &&
(entry->data == data || (entry->data != NULL && data != NULL && strcmp(entry->data, data) == 0)) &&
(entry->metadata == metadata || (entry->metadata != NULL && metadata != NULL && strcmp(entry->metadata, metadata) == 0)));