Files
SRCmail/lib/__tests__/eml-import.test.ts
T
Stefan HildebrandtandLinus Rath 2fac6ebfb8 test: add characterisation tests for untested integration seams
Golden-master tests pinning the CURRENT behavior of high-value modules
that had no coverage — integration seams, security helpers, two API
route handlers, and complex pure utils. 111 tests across 12 files.

New tests:
- auth-crypto / session-cookie: AES-256-GCM session encryption roundtrip,
  tamper/version/missing-secret handling; cookie-slot naming.
- unified-mailbox: multi-account fan-out, sort, totals, per-account error
  isolation, personal-vs-shared JMAP target resolution, counts/roles.
- account-state-manager: snapshot/restore across the six real Zustand
  stores; clearAllStores reset shape; evict.
- mdn: RFC 5322 MDN assembly (CRLF, RFC2047, base64 wrap, headers).
- tnef: winmail.dat binary parsing from hand-built fixtures.
- download-filename / subject-prefix / birthday-calendar / eml-import:
  filename templating, multilingual prefix stripping, birthday event
  generation, .eml/.zip import.
- webdav / caldav-discover route handlers: auth guards, path validation,
  upstream URL construction, candidate probing.
- helpers/factories.ts: shared makeEmail/makeMailbox/makeFakeJmapClient.

Tests follow the repo's existing patterns (route-import, fake IJMAPClient,
fetch spy, real store singletons). Where current behavior looks buggy it
is pinned and flagged with a // CHARACTERISATION: comment (see PR for the
suspected-bugs list); no production code is changed.
2026-06-19 23:52:42 +02:00

52 lines
2.1 KiB
TypeScript

import { describe, it, expect } from 'vitest';
import JSZip from 'jszip';
import { expandImportableEmails, EML_IMPORT_ACCEPT } from '@/lib/eml-import';
const emlFile = (name: string, content = 'raw email', type = 'message/rfc822') =>
new File([content], name, { type });
describe('expandImportableEmails', () => {
it('wraps a .eml file as a message/rfc822 blob, keeping its name', async () => {
const out = await expandImportableEmails([emlFile('msg.eml')]);
expect(out).toHaveLength(1);
expect(out[0].name).toBe('msg.eml');
expect(out[0].blob.type).toBe('message/rfc822');
await expect(out[0].blob.text()).resolves.toBe('raw email');
});
it('CHARACTERISATION: wraps a non-.eml, non-zip file as rfc822 too', async () => {
const out = await expandImportableEmails([emlFile('note.txt', 'hi', 'text/plain')]);
expect(out).toHaveLength(1);
expect(out[0]).toMatchObject({ name: 'note.txt' });
expect(out[0].blob.type).toBe('message/rfc822');
});
it('extracts only .eml entries from a .zip, stripping path prefixes', async () => {
const zip = new JSZip();
zip.file('a.eml', 'A');
zip.file('sub/b.eml', 'B');
zip.file('c.txt', 'C'); // skipped (not .eml)
zip.folder('emptydir'); // skipped (directory)
const blob = await zip.generateAsync({ type: 'blob' });
const file = new File([blob], 'archive.zip', { type: 'application/zip' });
const out = await expandImportableEmails([file]);
expect(out.map((e) => e.name).sort()).toEqual(['a.eml', 'b.eml']);
expect(out.every((e) => e.blob.type === 'message/rfc822')).toBe(true);
});
it('uses the zip path when the MIME type is application/zip even without a .zip name', async () => {
const zip = new JSZip();
zip.file('only.eml', 'X');
const blob = await zip.generateAsync({ type: 'blob' });
const file = new File([blob], 'archive-no-ext', { type: 'application/zip' });
const out = await expandImportableEmails([file]);
expect(out.map((e) => e.name)).toEqual(['only.eml']);
});
it('exposes the accept string for the file picker', () => {
expect(EML_IMPORT_ACCEPT).toBe('.eml,.zip,message/rfc822,application/zip');
});
});