fix(repository): Move backend code into subdirectory

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

backend/src/history/utils.spec.ts

@@ -0,0 +1,36 @@
+/*
+ * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { Alias } from '../notes/alias.entity';
+import { Note } from '../notes/note.entity';
+import { User } from '../users/user.entity';
+import { HistoryEntry } from './history-entry.entity';
+import { getIdentifier } from './utils';
+
+describe('getIdentifier', () => {
+  const alias = 'alias';
+  let note: Note;
+  let entry: HistoryEntry;
+  beforeEach(() => {
+    const user = User.create('hardcoded', 'Testy') as User;
+    note = Note.create(user, alias) as Note;
+    entry = HistoryEntry.create(user, note) as HistoryEntry;
+  });
+  it('returns the publicId if there are no aliases', async () => {
+    note.aliases = Promise.resolve(undefined as unknown as Alias[]);
+    expect(await getIdentifier(entry)).toEqual(note.publicId);
+  });
+  it('returns the publicId, if the alias array is empty', async () => {
+    note.aliases = Promise.resolve([]);
+    expect(await getIdentifier(entry)).toEqual(note.publicId);
+  });
+  it('returns the publicId, if the only alias is not primary', async () => {
+    (await note.aliases)[0].primary = false;
+    expect(await getIdentifier(entry)).toEqual(note.publicId);
+  });
+  it('returns the primary alias, if one exists', async () => {
+    expect(await getIdentifier(entry)).toEqual((await note.aliases)[0].name);
+  });
+});