chore: fix tests and add changeset

Signed-off-by: blam <ben@blam.sh>

.changeset/tricky-months-hug.md

@@ -0,0 +1,8 @@
+---
+'@backstage/plugin-auth-backend-module-oauth2-proxy-provider': patch
+'@backstage/plugin-auth-backend-module-aws-alb-provider': patch
+'@backstage/plugin-auth-backend-module-gcp-iap-provider': patch
+'@backstage/plugin-auth-node': patch
+---
+
+Fix issue with `providerInfo` not being set properly for some auth providers, by making `providerInfo` an explicit optional return from `authenticate`

plugins/auth-backend-module-aws-alb-provider/src/authenticator.test.ts

@@ -107,6 +107,10 @@ describe('AwsAlbProvider', () => {
           expiresInSeconds: mockClaims.exp,
           accessToken: mockAccessToken,
         },
+        providerInfo: {
+          accessToken: mockAccessToken,
+          expiresInSeconds: mockClaims.exp,
+        },
       });
     });
   });

plugins/auth-backend-module-gcp-iap-provider/src/authenticator.test.ts

@@ -45,7 +45,10 @@ describe('GcpIapProvider', () => {
         },
         ctx,
       ),
-    ).resolves.toEqual({ result: { iapToken: { sub: 's', email: 'e' } } });
+    ).resolves.toEqual({
+      result: { iapToken: { sub: 's', email: 'e' } },
+      providerInfo: { iapToken: { sub: 's', email: 'e' } },
+    });
   });
 
   it('should find custom JWT header', async () => {
@@ -66,7 +69,10 @@ describe('GcpIapProvider', () => {
         },
         ctx,
       ),
-    ).resolves.toEqual({ result: { iapToken: { sub: 's', email: 'e' } } });
+    ).resolves.toEqual({
+      result: { iapToken: { sub: 's', email: 'e' } },
+      providerInfo: { iapToken: { sub: 's', email: 'e' } },
+    });
   });
 
   it('should throw if header is missing', async () => {

plugins/auth-node/api-report.md

@@ -538,7 +538,11 @@ export type ProfileTransform<TResult> = (
 }>;
 
 // @public (undocumented)
-export interface ProxyAuthenticator<TContext, TResult, TProviderInfo> {
+export interface ProxyAuthenticator<
+  TContext,
+  TResult,
+  TProviderInfo = undefined,
+> {
   // (undocumented)
   authenticate(
     options: {

plugins/auth-node/src/proxy/types.ts

@@ -19,7 +19,11 @@ import { Request } from 'express';
 import { ProfileTransform } from '../types';
 
 /** @public */
-export interface ProxyAuthenticator<TContext, TResult, TProviderInfo> {
+export interface ProxyAuthenticator<
+  TContext,
+  TResult,
+  TProviderInfo = undefined,
+> {
   defaultProfileTransform: ProfileTransform<TResult>;
   initialize(ctx: { config: Config }): TContext;
   authenticate(