diff --git a/ui/src/worker/__mocks__/helper.ts b/ui/src/worker/__mocks__/helper.ts
new file mode 100644
index 0000000000..6ff4b63ff4
--- /dev/null
+++ b/ui/src/worker/__mocks__/helper.ts
@@ -0,0 +1,26 @@
+import type { Result } from "../../generated/schema.ts";
+import { getTestResult } from "../../test/testhelper.ts";
+
+export class GsaInstance {
+  log: any;
+
+  private constructor(_worker: any, log: any) {
+    this.log = log;
+  }
+
+  static async create(_log: (line: string) => void): Promise<GsaInstance> {
+    return new GsaInstance({}, {});
+  }
+
+  async analyze(filename: string, _data: Uint8Array): Promise<Result | null> {
+    if (filename === "fail") {
+      return null;
+    }
+
+    for (let i = 0; i < 10; i++) {
+      this.log(`Processing ${i}`);
+    }
+
+    return getTestResult();
+  }
+}