test: use override while adding middleware

Author: trivikr

packages/middleware-flexible-checksums/src/middleware-flexible-checksums.retry.integ.spec.ts

@@ -2,6 +2,8 @@ import { S3 } from "@aws-sdk/client-s3";
 import { HttpResponse } from "@smithy/protocol-http";
 import { describe, expect, test as it } from "vitest";
 
+import { flexibleChecksumsMiddleware } from "./flexibleChecksumsMiddleware";
+
 describe("middleware-flexible-checksums.retry", () => {
   it("retry reuses the checksum", async () => {
     const maxAttempts = 3;
@@ -24,8 +26,9 @@ describe("middleware-flexible-checksums.retry", () => {
     };
     client.middlewareStack.addRelativeTo(flexChecksCallCountMiddleware, {
       name: flexChecksCallCountMiddleware.name,
-      toMiddleware: "flexibleChecksumsMiddleware",
+      toMiddleware: flexibleChecksumsMiddleware.name,
       relation: "after",
+      override: true,
     });
 
     client.middlewareStack.identifyOnResolve(true);