fix: force Google account chooser on OAuth login

app/containers/LoginServices/__tests__/serviceLogin.test.ts

@@ -0,0 +1,35 @@
+import * as WebBrowser from 'expo-web-browser';
+
+import { onPressGoogle } from '../serviceLogin';
+
+jest.mock('expo-web-browser', () => ({
+	openAuthSessionAsync: jest.fn(() => Promise.resolve({ type: 'dismiss' }))
+}));
+
+jest.mock('../../../lib/services/connect', () => ({
+	loginOAuthOrSso: jest.fn()
+}));
+
+const service = {
+	_id: 'google',
+	name: 'google',
+	service: 'google',
+	authType: 'oauth',
+	buttonColor: '#fff',
+	buttonLabelColor: '#000',
+	clientConfig: { provider: 'google' },
+	serverURL: '',
+	authorizePath: '',
+	clientId: 'client-id',
+	scope: ''
+} as const;
+
+describe('onPressGoogle', () => {
+	it('opens the Google OAuth URL with prompt=select_account', () => {
+		onPressGoogle({ service, server: 'https://mpbila.qa.rocket.chat' });
+
+		const url = (WebBrowser.openAuthSessionAsync as jest.Mock).mock.calls[0][0];
+		expect(url).toContain('accounts.google.com/o/oauth2/auth');
+		expect(url).toContain('prompt=select_account');
+	});
+});

app/containers/LoginServices/serviceLogin.ts

@@ -54,7 +54,7 @@ export const onPressGoogle = ({ service, server }: IServiceLogin) => {
 	const redirect_uri = `${server}/_oauth/google?close`;
 	const scope = encodeURIComponent('profile email');
 	const state = getOAuthState('redirect');
-	const params = `?client_id=${clientId}&redirect_uri=${redirect_uri}&scope=${scope}&state=${state}&response_type=code`;
+	const params = `?client_id=${clientId}&redirect_uri=${redirect_uri}&scope=${scope}&state=${state}&response_type=code&prompt=select_account`;
 	openOAuthSession(`${endpoint}${params}`);
 };