Fix tests

server/tests/fixtures/peertube-plugin-test/main.js

@@ -209,7 +209,7 @@ async function register ({ registerHook, registerSetting, settingsManager, stora
 
   registerHook({
     target: 'filter:activity-pub.activity.context.build.result',
-    handler: context => context.concat([ 'https://example.com/new-context' ])
+    handler: context => context.concat([ { recordedAt: 'https://schema.org/recordedAt' } ])
   })
 
   registerHook({

server/tests/plugins/filter-hooks.ts

@@ -853,7 +853,9 @@ describe('Test plugin filter hooks', function () {
       const { body } = await makeActivityPubGetRequest(servers[0].url, '/w/' + videoUUID)
       expect(body.type).to.equal('Video')
 
-      expect(body['@context'].some(c => c === 'https://example.com/new-context')).to.be.true
+      expect(body['@context'].some(c => {
+        return typeof c === 'object' && c.recordedAt === 'https://schema.org/recordedAt'
+      })).to.be.true
     })
 
     it('Should run filter:activity-pub.video.json-ld.build.result', async function () {