Add auto mute plugin tests

shared/extra-utils/plugins/mock-blocklist.ts

@@ -0,0 +1,28 @@
+import * as express from 'express'
+
+type BlocklistResponse = {
+  data: {
+    value: string
+    action?: 'add' | 'remove'
+  }[]
+}
+
+export class MockBlocklist {
+  private body: BlocklistResponse
+
+  initialize () {
+    return new Promise(res => {
+      const app = express()
+
+      app.get('/blocklist', (req: express.Request, res: express.Response) => {
+        return res.json(this.body)
+      })
+
+      app.listen(42100, () => res())
+    })
+  }
+
+  replace (body: BlocklistResponse) {
+    this.body = body
+  }
+}