test: fix broken test in category follows

src/activitypub/mocks.js

@@ -64,7 +64,7 @@ Mocks.profile = async (actors) => {
 			userslug: `${preferredUsername}@${hostname}`,
 			displayname: name,
 			fullname: name,
-			joindate: new Date(published).getTime(),
+			joindate: new Date(published).getTime() || Date.now(),
 			picture,
 			status: 'offline',
 			'icon:text': (preferredUsername[0] || '').toUpperCase(),

test/api.js

@@ -322,7 +322,11 @@ describe('API', async () => {
 		activitypub._cache.set(`0;https://example.org/foobar`, {
 			id: 'https://example.org/foobar',
 			name: 'foobar',
-			publicKey: 'secretcat',
+			publicKey: {
+				id: `https://example.org/foobar#key`,
+				owner: `https://example.org/foobar`,
+				publicKeyPem: 'secretcat',
+			},
 		});
 
 		setup = true;