test: add tests for TbdexOrderInstructionsNotifier (#325)

Author: victoreronmosele

test/features/tbdex/tbdex_order_instructions_notifier_test.dart

@@ -0,0 +1,75 @@
+import 'package:didpay/features/did/did_provider.dart';
+import 'package:didpay/features/tbdex/tbdex_order_instructions_notifier.dart';
+import 'package:didpay/features/tbdex/tbdex_service.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mocktail/mocktail.dart';
+
+import '../../helpers/mocks.dart';
+import '../../helpers/riverpod_helpers.dart';
+import '../../helpers/test_data.dart';
+
+Future<void> main() async {
+  await TestData.initializeDids();
+
+  final did = TestData.aliceDid;
+  const pfiDid = '123';
+  const exchangeId = 'rfq_01ha835rhefwmagsknrrhvaa0k';
+
+  group('TbdexOrderInstructionsNotifier`', () {
+    group('startPolling', () {
+      test('should return OrderInstructions if successful', () async {
+        final mockTbdexService = MockTbdexService();
+        final orderInstruction = TestData.getOrderInstructions();
+
+        when(() => mockTbdexService.getExchange(did, pfiDid, exchangeId))
+            .thenAnswer((_) async => [orderInstruction]);
+
+        final container = createContainer(
+          overrides: [
+            tbdexServiceProvider.overrideWith(
+              (ref) => mockTbdexService,
+            ),
+            didProvider.overrideWith((ref) => did),
+          ],
+        );
+
+        final tbdexOrderInstructionsNotifier =
+            container.read(orderInstructionsProvider.notifier);
+
+        final result = await tbdexOrderInstructionsNotifier.startPolling(
+          pfiDid,
+          exchangeId,
+        );
+
+        expect(result, orderInstruction);
+      });
+
+      test('should throw an Exception if not successful', () async {
+        final mockTbdexService = MockTbdexService();
+
+        when(() => mockTbdexService.getExchange(did, pfiDid, exchangeId))
+            .thenThrow(Exception('Error'));
+
+        final container = createContainer(
+          overrides: [
+            tbdexServiceProvider.overrideWith(
+              (ref) => mockTbdexService,
+            ),
+            didProvider.overrideWith((ref) => did),
+          ],
+        );
+
+        final tbdexOrderInstructionsNotifier =
+            container.read(orderInstructionsProvider.notifier);
+
+        expect(
+          () => tbdexOrderInstructionsNotifier.startPolling(
+            pfiDid,
+            exchangeId,
+          ),
+          throwsA(isA<Exception>()),
+        );
+      });
+    });
+  });
+}

test/helpers/test_data.dart

@@ -128,6 +128,22 @@ class TestData {
         TypeId.generate(MessageKind.rfq.name),
       );
 
+  static OrderInstructions getOrderInstructions() => OrderInstructions.create(
+        pfiDid.uri,
+        aliceDid.uri,
+        TypeId.generate(MessageKind.rfq.name),
+        OrderInstructionsData(
+          payin: PaymentInstruction(
+            link: 'https://payin.link',
+            instruction: 'Pay in instruction',
+          ),
+          payout: PaymentInstruction(
+            link: 'https://payout.link',
+            instruction: 'Pay out instruction',
+          ),
+        ),
+      );
+
   static JsonSchema paymentDetailsSchema() => JsonSchema.create(
         jsonDecode(r'''
         {