production

test/tenant_refresh_test.dart

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+import 'dart:convert';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:http/http.dart' as http;
+import 'package:http/testing.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:miler/data/miler_api.dart';
+import 'package:miler/data/service_profile.dart';
+
+/// ─────────────────────────────────────────────────────────────────────────
+/// THE TENANT, REFRESHED WITHOUT A SIGN-OUT
+///
+/// `tenantname` was written at verify-pin and nowhere else, so it only reached
+/// a device by way of a **login**. A rider already signed in when the backend
+/// began returning the field would never receive it: prefs carry no name,
+/// resolution falls back to the tenant id, and an id this app has not been told
+/// about lands him on logistics — no **Start delivery** button, and a parcel
+/// stranded at `Collected_By_Miler` the moment collected-state is enabled.
+///
+/// `GET /miler/profile` returns the same pair, so the answer is refreshable in
+/// place. These pin that, and pin the three ways it must fail quietly: a launch
+/// with no signal, a signed-out device, and a handler that answers without the
+/// field.
+/// ─────────────────────────────────────────────────────────────────────────
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  tearDown(() {
+    MilerApi.client = http.Client();
+    ServiceProfile.setActive(ServiceProfile.parcel);
+  });
+
+  void stubProfile(Map<String, dynamic> body, {int code = 200}) {
+    MilerApi.client = MockClient(
+      (req) async => http.Response(
+        json.encode(body),
+        code,
+        headers: const {'content-type': 'application/json'},
+      ),
+    );
+  }
+
+  test('a signed-in rider picks up his tenant name in place', () async {
+    SharedPreferences.setMockInitialValues({'authtoken': 'tok'});
+    stubProfile({
+      'success': true,
+      'data': {'tenantid': 41, 'tenantname': 'DailyGrubs'},
+    });
+
+    await refreshTenantFromProfile();
+
+    expect(
+      await resolveServiceProfile(),
+      ServiceProfile.milkMan,
+      reason: 'no sign-out should be required to receive the tenant',
+    );
+  });
+
+  test('the pair is read from inside `user` as well as top level', () async {
+    // The backend returns it both ways; a handler that later moves it must not
+    // silently stop resolving riders.
+    SharedPreferences.setMockInitialValues({'authtoken': 'tok'});
+    stubProfile({
+      'success': true,
+      'data': {
+        'user': {'tenantid': 41, 'tenantname': 'Daily Grubs'},
+      },
+    });
+
+    await refreshTenantFromProfile();
+    expect(await resolveServiceProfile(), ServiceProfile.milkMan);
+  });
+
+  test('a signed-out device asks for nothing', () async {
+    var called = false;
+    MilerApi.client = MockClient((req) async {
+      called = true;
+      return http.Response('{}', 200);
+    });
+
+    SharedPreferences.setMockInitialValues(const {});
+    await refreshTenantFromProfile();
+
+    expect(called, isFalse, reason: 'no token, no request');
+  });
+
+  test('a launch with no signal keeps what it already had', () async {
+    SharedPreferences.setMockInitialValues({
+      'authtoken': 'tok',
+      TenantController.kTenantName: 'DailyGrubs',
+    });
+    MilerApi.client = MockClient((req) async => throw const SocketishFailure());
+
+    // Must not throw: a launch offline lands on the same screen it always did.
+    await refreshTenantFromProfile();
+    expect(await resolveServiceProfile(), ServiceProfile.milkMan);
+  });
+
+  test('a response without the field does not erase the stored one', () async {
+    SharedPreferences.setMockInitialValues({
+      'authtoken': 'tok',
+      TenantController.kTenantName: 'DailyGrubs',
+    });
+    stubProfile({
+      'success': true,
+      'data': {'displayname': 'Rajan A'},
+    });
+
+    await refreshTenantFromProfile();
+    // Backgrounded for a known rider, so let it land before asserting.
+    await Future<void>.delayed(const Duration(milliseconds: 50));
+    expect(await resolveServiceProfile(), ServiceProfile.milkMan);
+  });
+}
+
+/// A stand-in for a dead network, so the test does not depend on `dart:io`
+/// error construction details.
+class SocketishFailure implements Exception {
+  const SocketishFailure();
+}