diff --git a/packages/backend/test/e2e/fetch-resource.ts b/packages/backend/test/e2e/fetch-resource.ts
index 1cbfec3e5f..45e92588a4 100644
--- a/packages/backend/test/e2e/fetch-resource.ts
+++ b/packages/backend/test/e2e/fetch-resource.ts
@@ -84,6 +84,7 @@ describe('Webリソース', () => {
 		aliceUploadedFile = await uploadFile(alice);
 		alicesPost = await post(alice, {
 			text: 'test',
+			fileIds: [aliceUploadedFile.body.id],
 		});
 		alicePage = await page(alice, {});
 		alicePlay = await play(alice, {});
@@ -158,6 +159,42 @@ describe('Webリソース', () => {
 		}));
 	});
 
+	describe.each([
+		{ ext: 'rss', type: 'application/rss+xml; charset=utf-8' },
+		{ ext: 'atom', type: 'application/atom+xml; charset=utf-8' },
+		{ ext: 'json', type: 'application/json; charset=utf-8' },
+	])('/@:username.with_replies.$ext', ({ ext, type }) => {
+		const path = (username: string): string => `/@${username}.with_replies.${ext}`;
+
+		test('がGETできる。', async () => await ok({
+			path: path(alice.username),
+			type,
+		}));
+
+		test('は存在しないユーザーはGETできない。', async () => await notOk({
+			path: path('nonexisting'),
+			status: 404,
+		}));
+	});
+
+	describe.each([
+		{ ext: 'rss', type: 'application/rss+xml; charset=utf-8' },
+		{ ext: 'atom', type: 'application/atom+xml; charset=utf-8' },
+		{ ext: 'json', type: 'application/json; charset=utf-8' },
+	])('/@:username.with_files.$ext', ({ ext, type }) => {
+		const path = (username: string): string => `/@${username}.with_files.${ext}`;
+
+		test('がGETできる。', async () => await ok({
+			path: path(alice.username),
+			type,
+		}));
+
+		test('は存在しないユーザーはGETできない。', async () => await notOk({
+			path: path('nonexisting'),
+			status: 404,
+		}));
+	});
+
 	describe.each([{ path: '/api/foo' }])('$path', ({ path }) => {
 		test('はGETできない。', async () => await notOk({
 			path,