fix(aws-client-retry-test): correct retry delay assertion (#4274)

private/aws-client-retry-test/src/ClientRetryTest.spec.ts

@@ -1,6 +1,7 @@
 import { GetInsightCommand, ThrottledException, XRayClient } from "@aws-sdk/client-xray";
 import { HttpResponse } from "@aws-sdk/protocol-http";
 import { RequestHandlerOutput } from "@aws-sdk/types";
+import { StandardRetryStrategy } from "@aws-sdk/util-retry";
 import { Readable } from "stream";
 
 describe("Middleware-retry integration tests", () => {
@@ -26,6 +27,7 @@ describe("Middleware-retry integration tests", () => {
         handle: () => Promise.resolve(mockSuccess),
       },
     });
+    expect(await client.config.retryStrategy()).toBeInstanceOf(StandardRetryStrategy);
     const response = await client.send(getInsightCommand);
     expect(response.$metadata.httpStatusCode).toBe(200);
     expect(response.$metadata.attempts).toBe(1);
@@ -42,11 +44,12 @@ describe("Middleware-retry integration tests", () => {
         handle: mockHandle,
       },
     });
+    expect(await client.config.retryStrategy()).toBeInstanceOf(StandardRetryStrategy);
     const response = await client.send(getInsightCommand);
     expect(response.$metadata.httpStatusCode).toBe(200);
     expect(mockHandle).toBeCalledTimes(3);
     expect(response.$metadata.attempts).toBe(3);
-    expect(response.$metadata.totalRetryDelay).toBeGreaterThan(300);
+    expect(response.$metadata.totalRetryDelay).toBeGreaterThan(0);
   });
   it("should retry until attemps are exhausted", async () => {
     const expectedException = new ThrottledException({
@@ -60,13 +63,14 @@ describe("Middleware-retry integration tests", () => {
         handle: () => Promise.resolve(mockThrottled),
       },
     });
+    expect(await client.config.retryStrategy()).toBeInstanceOf(StandardRetryStrategy);
     try {
       await client.send(getInsightCommand);
     } catch (error) {
       expect(error).toStrictEqual(expectedException);
       expect(error.$metadata.httpStatusCode).toBe(429);
       expect(error.$metadata.attempts).toBe(4);
-      expect(error.$metadata.totalRetryDelay).toBeGreaterThan(300);
+      expect(error.$metadata.totalRetryDelay).toBeGreaterThan(0);
     }
   });
 });