fix test

packages/backend/test/misc/mock-resolver.ts

@@ -0,0 +1,35 @@
+import Resolver from '../../src/remote/activitypub/resolver';
+import { IObject } from '../../src/remote/activitypub/type';
+
+type MockResponse = {
+	type: string;
+	content: string;
+};
+
+export class MockResolver extends Resolver {
+	private _rs = new Map<string, MockResponse>();
+	public async _register(uri: string, content: string | Record<string, any>, type = 'application/activity+json') {
+		this._rs.set(uri, {
+			type,
+			content: typeof content === 'string' ? content : JSON.stringify(content)
+		});
+	}
+
+	public async resolve(value: string | IObject): Promise<IObject> {
+		if (typeof value !== 'string') return value;
+
+		const r = this._rs.get(value);
+
+		if (!r) {
+			throw {
+				name: `StatusError`,
+				statusCode: 404,
+				message: `Not registed for mock`
+			};
+		}
+
+		const object = JSON.parse(r.content);
+
+		return object;
+	}
+}