fix(apptesting): display clear quota exhaustion message on 429 error

src/appdistribution/client.ts

@@ -3,7 +3,7 @@
 import * as utils from "../utils";
 import * as operationPoller from "../operation-poller";
 import { Distribution } from "./distribution";
-import { FirebaseError, getErrMsg } from "../error";
+import { FirebaseError, getErrMsg, getErrStatus, getError } from "../error";
 import { Client, ClientResponse } from "../apiv2";
 import { appDistributionOrigin } from "../api";
 
@@ -117,9 +117,9 @@
 
     try {
       await this.appDistroV1Client.post(`/${releaseName}:distribute`, data);
     } catch (err: any) {
       let errorMessage = getErrMsg(err);
       const errorStatus = err?.context?.body?.error?.status;
       if (errorStatus === "FAILED_PRECONDITION") {
         errorMessage = "invalid testers";
       } else if (errorStatus === "INVALID_ARGUMENT") {
@@ -301,7 +301,19 @@
       });
       return response.body;
     } catch (err: unknown) {
-      throw new FirebaseError(`Failed to create release test ${getErrMsg(err)}`);
+      const status = getErrStatus(err);
+      const msg = getErrMsg(err);
+      if (
+        status === 429 ||
+        msg.includes("RESOURCE_EXHAUSTED") ||
+        msg.includes("QUOTA_EXCEEDED")
+      ) {
+        throw new FirebaseError(
+          `Quota exceeded: Failed to request test execution due to quota limits (429 RESOURCE_EXHAUSTED). Please check your project's App Testing quota usage in the Firebase console. Details: ${msg}`,
+          { status: 429, original: getError(err) },
+        );
+      }
+      throw new FirebaseError(`Failed to create release test: ${msg}`, { original: getError(err) });
     }
   }