Fix usage of JOSE library in OIDC test as part of JOSE upgrade

plugins/auth-backend/package.json

@@ -18,7 +18,7 @@
   },
   "jest": {
     "moduleNameMapper": {
-      "^jose/(.*)$": "<rootDir>/../node_modules/jose/dist/node/cjs/$1"
+      "^jose/(.*)$": "<rootDir>/../../../node_modules/jose/dist/node/cjs/$1"
     }
   },
   "keywords": [

plugins/auth-backend/src/providers/oidc/provider.test.ts

@@ -13,13 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+import { TextDecoder, TextEncoder } from 'util';
 
+// @ts-ignore
+global.TextDecoder = TextDecoder;
+global.TextEncoder = TextEncoder;
 import express from 'express';
 import { Session } from 'express-session';
 import nock from 'nock';
 import { ClientMetadata, IssuerMetadata } from 'openid-client';
 import { createOidcProvider, OidcAuthProvider } from './provider';
-import { JWT, JWK } from 'jose';
+import UnsecuredJWT from 'jose/jwt/unsecured';
 import { AuthProviderFactoryOptions } from '../types';
 import { Config } from '@backstage/config';
 import { OAuthAdapter } from '../../lib/oauth';
@@ -71,6 +75,7 @@ describe('OidcAuthProvider', () => {
     const jwt = {
       sub: 'alice',
       iss: 'https://oidc.test',
+      iat: Date.now(),
       aud: clientMetadata.clientId,
       exp: Date.now() + 10000,
     };
@@ -79,7 +84,7 @@ describe('OidcAuthProvider', () => {
       .reply(200, issuerMetadata)
       .post('/as/token.oauth2')
       .reply(200, {
-        id_token: JWT.sign(jwt, JWK.None),
+        id_token: new UnsecuredJWT(jwt).encode(),
         access_token: 'test',
         authorization_signed_response_alg: 'HS256',
       })