[notification hubs] Update XML Error parsing for Issue #25914 (#26209)

### Packages impacted by this PR

- @azure/notification-hubs

### Issues associated with this PR

- #25914

### Describe the problem that is addressed by this PR

Updates code to fix the error code parsing for XML.

### What are the possible designs available to address the problem? If
there are more than one possible design, why was the one in this PR
chosen?


### Are there test cases added in this PR? _(If not, why?)_


### Provide a list of related PRs _(if any)_


### Command used to generate this PR:**_(Applicable only to SDK release
request PRs)_

### Checklists
- [x] Added impacted package name to the issue description
- [ ] Does this PR needs any fixes in the SDK Generator?** _(If so,
create an Issue in the
[Autorest/typescript](https://github.com/Azure/autorest.typescript)
repository and link it here)_
- [x] Added a changelog (if necessary)

sdk/notificationhubs/notification-hubs/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.0.2 (Unreleased)
+## 1.0.2 (2023-06-15)
 
 ### Features Added
 
@@ -10,6 +10,10 @@
 
 - [#25230](ttps://github.com/Azure/azure-sdk-for-js/issues/25230) - Added section for React Native support in troubleshooting.
 
+### Bugs Fixed
+
+- [#25316](https://github.com/Azure/azure-sdk-for-js/issues/25914) - Fix `parseXMLError` to properly handle the XML document response.
+
 ## 1.0.1 (2023-03-21)
 
 ### Features Added

sdk/notificationhubs/notification-hubs/src/utils/xmlUtils.ts

@@ -106,7 +106,7 @@ export function serializeToAtomXmlRequest(
 export async function parseXMLError(bodyText: string): Promise<string | undefined> {
   let result: string | undefined;
   const xmlError = await parseXML(bodyText, { includeRoot: true });
-  const detail = xmlError["Detail"];
+  const detail = xmlError["Error"]["Detail"];
   if (isDefined(detail)) {
     return detail;
   }

sdk/notificationhubs/notification-hubs/test/internal/unit/xmlUtils.spec.ts

@@ -0,0 +1,24 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+import { assert } from "@azure/test-utils";
+import { parseXMLError } from "../../../src/utils/xmlUtils.js";
+
+const NOTIFICATION_XML_ERROR = `
+<Error>
+    <Code>400</Code>
+    <Detail>The HTTP header 'ServiceBusNotification-Format' has an invalid value: 'fcmlegacy'. Allowed values are 'windows', 'apple', 'gcm', 'template', 'adm', or 'windowsphone'.</Detail>
+</Error>
+`;
+
+describe("xmlUtils", () => {
+  describe("parseXMLError", () => {
+    it("should parse the error", async () => {
+      const error = await parseXMLError(NOTIFICATION_XML_ERROR);
+      assert.equal(
+        error,
+        "The HTTP header 'ServiceBusNotification-Format' has an invalid value: 'fcmlegacy'. Allowed values are 'windows', 'apple', 'gcm', 'template', 'adm', or 'windowsphone'."
+      );
+    });
+  });
+});