add filters for following feed

packages/backend/test/unit/misc/is-renote.ts

@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { isQuote, isRenote } from '@/misc/is-renote.js';
+import { isPureRenote, isQuote, isRenote } from '@/misc/is-renote.js';
 import { MiNote } from '@/models/Note.js';
 
 const base: MiNote = {
@@ -86,4 +86,25 @@ describe('misc:is-renote', () => {
 		expect(isRenote(note)).toBe(true);
 		expect(isQuote(note as any)).toBe(true);
 	});
+
+	describe('isPureRenote', () => {
+		it('should return true when note is pure renote', () => {
+			const note = new MiNote({ renoteId: 'abc123' });
+			const result = isPureRenote(note);
+			expect(result).toBeTruthy();
+		});
+
+		it('should return false when note is quote', () => {
+			const note = new MiNote({ renoteId: 'abc123', text: 'text' });
+			const result = isPureRenote(note);
+			expect(result).toBeFalsy();
+
+		});
+
+		it('should return false when note is not renote', () => {
+			const note = new MiNote({ renoteId: null });
+			const result = isPureRenote(note);
+			expect(result).toBeFalsy();
+		});
+	});
 });

packages/backend/test/unit/models/LatestNote.ts

@@ -0,0 +1,66 @@
+import { SkLatestNote } from '@/models/LatestNote.js';
+import { MiNote } from '@/models/Note.js';
+
+describe(SkLatestNote, () => {
+	describe('keyFor', () => {
+		it('should include userId', () => {
+			const note = new MiNote({ userId: 'abc123' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.userId).toBe(note.userId);
+		});
+
+		it('should include isPublic when is public', () => {
+			const note = new MiNote({ visibility: 'public' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isPublic).toBeTruthy();
+		});
+
+		it('should include isPublic when is home-only', () => {
+			const note = new MiNote({ visibility: 'home' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isPublic).toBeFalsy();
+		});
+
+		it('should include isPublic when is followers-only', () => {
+			const note = new MiNote({ visibility: 'followers' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isPublic).toBeFalsy();
+		});
+
+		it('should include isPublic when is specified', () => {
+			const note = new MiNote({ visibility: 'specified' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isPublic).toBeFalsy();
+		});
+
+		it('should include isReply when is reply', () => {
+			const note = new MiNote({ replyId: 'abc123' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isReply).toBeTruthy();
+		});
+
+		it('should include isReply when is not reply', () => {
+			const note = new MiNote({ replyId: null });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isReply).toBeFalsy();
+		});
+
+		it('should include isQuote when is quote', () => {
+			const note = new MiNote({ renoteId: 'abc123', text: 'text' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isQuote).toBeTruthy();
+		});
+
+		it('should include isQuote when is reblog', () => {
+			const note = new MiNote({ renoteId: 'abc123' });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isQuote).toBeFalsy();
+		});
+
+		it('should include isQuote when is neither quote nor reblog', () => {
+			const note = new MiNote({ renoteId: null });
+			const key = SkLatestNote.keyFor(note);
+			expect(key.isQuote).toBeFalsy();
+		});
+	});
+});