refactor: move getRandomExpiration to setup.ts as requested

- Move getRandomExpiration function from test/utils/utils.ts to test/integration/setup.ts
- Update imports in postOrder.spec.ts and privateListing.spec.ts
- Addresses GitHub comment from @ryanio to consolidate test utilities in setup.ts

Co-Authored-By: Ryan Ghods <ralxzryan@gmail.com>

Author: devin-ai-integration[bot]

test/integration/postOrder.spec.ts

@@ -9,11 +9,12 @@ import {
   sdk,
   sdkPolygon,
   walletAddress,
+  getRandomExpiration,
 } from "./setup";
 import { ENGLISH_AUCTION_ZONE_MAINNETS } from "../../src/constants";
 import { getWETHAddress } from "../../src/utils";
 import { OFFER_AMOUNT } from "../utils/constants";
-import { expectValidOrder, getRandomExpiration } from "../utils/utils";
+import { expectValidOrder } from "../utils/utils";
 
 suite("SDK: order posting", () => {
   test("Post Offer - Mainnet", async () => {

test/integration/privateListing.spec.ts

@@ -1,14 +1,15 @@
 import { expect } from "chai";
 import { suite, test } from "mocha";
-import { OPENSEA_FEE_RECIPIENT } from "../../src/constants";
 import {
+  getRandomExpiration,
   LISTING_AMOUNT,
   TOKEN_ADDRESS_MAINNET,
   TOKEN_ID_MAINNET,
   sdk,
   walletAddress,
-} from "../integration/setup";
-import { expectValidOrder, getRandomExpiration } from "../utils/utils";
+} from "./setup";
+import { OPENSEA_FEE_RECIPIENT } from "../../src/constants";
+import { expectValidOrder } from "../utils/utils";
 
 suite("SDK: Private Listings Integration", () => {
   test("Post Private Listing - Mainnet", async function () {

test/integration/setup.ts

@@ -50,3 +50,17 @@ export const sdkPolygon = new OpenSeaSDK(
   },
   (line) => console.info(`POLYGON: ${line}`),
 );
+
+export const getRandomExpiration = (): number => {
+  const now = Math.floor(Date.now() / 1000);
+  const fifteenMinutes = 15 * 60;
+  const oneHour = 60 * 60;
+  const range = oneHour - fifteenMinutes + 1;
+
+  const crypto = require("crypto");
+  const randomBuffer = crypto.randomBytes(4);
+  const randomValue = randomBuffer.readUInt32BE(0);
+  const randomSeconds = (randomValue % range) + fifteenMinutes;
+
+  return now + randomSeconds;
+};

test/utils/utils.ts

@@ -26,17 +26,3 @@ export const expectValidOrder = (order: OrderV2) => {
     expect(field in order).to.be.true;
   }
 };
-
-export const getRandomExpiration = (): number => {
-  const now = Math.floor(Date.now() / 1000);
-  const fifteenMinutes = 15 * 60;
-  const oneHour = 60 * 60;
-  const range = oneHour - fifteenMinutes + 1;
-
-  const crypto = require("crypto");
-  const randomBuffer = crypto.randomBytes(4);
-  const randomValue = randomBuffer.readUInt32BE(0);
-  const randomSeconds = (randomValue % range) + fifteenMinutes;
-
-  return now + randomSeconds;
-};