Use isInTestMode() instead of NODE_ENV

Author: robertbrignull

lib/entry-points.js

@@ -36,6 +36,7 @@ import {
   getRequiredEnvParam,
   GitHubVariant,
   GitHubVersion,
+  isInTestMode,
   satisfiesGHESVersion,
 } from "./util";
 
@@ -858,7 +859,7 @@ export async function waitForProcessing(
 
     // Do an initial wait because processing will always take a minimum of 2-3 seconds
     let statusCheckBackoff = STATUS_CHECK_INITIAL_BACKOFF_MILLISECONDS;
-    if (process.env["NODE_ENV"] !== "test") {
+    if (!isInTestMode()) {
       await util.delay(statusCheckBackoff, { allowProcessExit: false });
     }