Files
pangolin/server/lib/backupFileName.test.ts
T
Hayyan Hajwani 9298ec7cdb fix(setup): correct month index and zero-pad database backup file names
Backup names were built inline from Date#getMonth, which is zero-indexed, so a
backup taken on 12 September 2026 was written as db_2026-8-12_20-35-56.sqlite.
No field was zero-padded either, giving names like db_2026-8-12_20-36-2.sqlite.

Extract formatBackupTimestamp into server/lib and use it from both places that
built the string: the backupDb helper in migrationsSqlite.ts and the inline copy
in the 1.0.0-beta9 setup script. Padding every field also makes the names sort
lexicographically in the order the backups were taken.

Adds tests covering both reported names, single-digit padding and sort order.
Reverting the helper to the old formula fails them with the exact name from the
report.
2026-09-16 13:46:57 +05:30

102 lines
2.9 KiB
TypeScript

import { formatBackupTimestamp } from "./backupFileName";
import { assertEquals } from "@test/assert";
// Local-time constructors are used throughout, matching formatBackupTimestamp,
// so these cases do not depend on the machine's timezone.
function testMonthIsOneIndexed() {
console.log("Running month indexing tests...");
// The case from the report: a backup taken on 12 September 2026 was named
// db_2026-8-12_... because Date#getMonth is zero-indexed.
{
const result = formatBackupTimestamp(new Date(2026, 8, 12, 20, 35, 56));
assertEquals(
result,
"2026-09-12_20-35-56",
"September must render as 09, not 8"
);
}
// The other reported name, db_2026-0-23_..., was a January backup.
{
const result = formatBackupTimestamp(new Date(2026, 0, 23, 20, 25, 49));
assertEquals(
result,
"2026-01-23_20-25-49",
"January must render as 01, not 0"
);
}
{
const result = formatBackupTimestamp(new Date(2026, 11, 31, 23, 59, 59));
assertEquals(
result,
"2026-12-31_23-59-59",
"December must render as 12"
);
}
}
function testEveryFieldIsZeroPadded() {
console.log("Running zero padding tests...");
// db_2026-8-12_20-36-2 in the report: a single-digit second was not padded.
{
const result = formatBackupTimestamp(new Date(2026, 8, 12, 20, 36, 2));
assertEquals(
result,
"2026-09-12_20-36-02",
"Single-digit seconds must be padded"
);
}
{
const result = formatBackupTimestamp(new Date(2026, 0, 1, 0, 0, 0));
assertEquals(
result,
"2026-01-01_00-00-00",
"Midnight on the first of the month must pad every field"
);
}
}
function testNamesSortChronologically() {
console.log("Running sort order tests...");
// Zero padding means a plain lexicographic sort of the backups directory
// lists the backups in the order they were taken.
const taken = [
new Date(2026, 8, 12, 20, 36, 2),
new Date(2026, 0, 23, 20, 25, 49),
new Date(2026, 8, 12, 20, 35, 56),
new Date(2026, 11, 31, 23, 59, 59)
];
const sorted = taken
.map((date) => formatBackupTimestamp(date))
.sort();
assertEquals(
sorted.join(","),
[
"2026-01-23_20-25-49",
"2026-09-12_20-35-56",
"2026-09-12_20-36-02",
"2026-12-31_23-59-59"
].join(","),
"Backup names must sort into the order the backups were taken"
);
}
// Run all tests
try {
testMonthIsOneIndexed();
testEveryFieldIsZeroPadded();
testNamesSortChronologically();
console.log("All tests passed successfully!");
} catch (error) {
console.error("Test failed:", error);
process.exit(1);
}