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TREK/server/tests/unit/app-config/image-version.test.ts
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2026-10-10 21:23:37 +02:00

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1.9 KiB
TypeScript

import { deriveApp } from '../../../src/app-config/derive';
import { imageVersion, resetImageVersion } from '../../../src/app-config/image-version';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import { afterEach, beforeEach, describe, expect, it } from 'vitest';
describe('imageVersion', () => {
const dirs: string[] = [];
const versionFile = (content: string): string => {
const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'trek-image-version-'));
dirs.push(dir);
const file = path.join(dir, 'VERSION');
fs.writeFileSync(file, content);
return file;
};
beforeEach(() => resetImageVersion());
afterEach(() => {
resetImageVersion();
for (const dir of dirs.splice(0)) fs.rmSync(dir, { recursive: true, force: true });
});
it('IMGVER-001: reads the version the image was built as, trimmed', () => {
expect(imageVersion(versionFile('4.4.0-pre.3\n'))).toBe('4.4.0-pre.3');
});
it('IMGVER-002: is null outside an image and for an empty file', () => {
expect(imageVersion(path.join(os.tmpdir(), 'trek-no-such-dir', 'VERSION'))).toBeNull();
resetImageVersion();
expect(imageVersion(versionFile(' \n'))).toBeNull();
});
it('IMGVER-003: reads once, because the image does not change under a running process', () => {
const file = versionFile('4.3.3');
expect(imageVersion(file)).toBe('4.3.3');
fs.writeFileSync(file, '9.9.9');
expect(imageVersion(file)).toBe('4.3.3');
});
it("IMGVER-004: the image's version wins over an APP_VERSION a recreated container carried over", () => {
imageVersion(versionFile('4.4.0'));
expect(deriveApp({ APP_VERSION: '4.3.3' }).appVersion).toBe('4.4.0');
});
it('IMGVER-005: without an image file, APP_VERSION still decides', () => {
imageVersion(path.join(os.tmpdir(), 'trek-no-such-dir', 'VERSION'));
expect(deriveApp({ APP_VERSION: '4.3.3' }).appVersion).toBe('4.3.3');
});
});