usecase testing and model testing for promotion

Author: jackwill99

lib/main.dart

@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
           onPressed: () {
             promoUsecase.saveFavPromo(
               promo: PromoModel(
-                duration: DateTime.now(),
+                duration: 2,
                 eventName: "eventName",
                 poster: 'poster',
               ),

lib/promo/data/data_sources/api_service.dart

@@ -27,7 +27,7 @@ class ApiService {
     return PromoModel(
       eventName: "eventName",
       poster: "promo",
-      duration: DateTime.now(),
+      duration: 1,
     );
   }
 
@@ -39,7 +39,7 @@ class ApiService {
     return PromoModel(
       eventName: "expiryEventName",
       poster: "expiryPromo",
-      duration: DateTime.now(),
+      duration: 2,
     );
   }
 }

lib/promo/data/models/promo_model.dart

@@ -7,4 +7,15 @@ class PromoModel extends Promo {
     required super.poster,
     required super.duration,
   });
+
+  factory PromoModel.fromJson(Map<String, dynamic> json) => PromoModel(
+      eventName: json["eventName"],
+      poster: json["poster"],
+      duration: json["duration"]);
+
+  Map<String, dynamic> toJson() => {
+        "eventName": eventName,
+        "poster": poster,
+        "duration": duration,
+      };
 }

lib/promo/domain/entities/promo.dart

@@ -4,7 +4,7 @@ import 'package:equatable/equatable.dart';
 abstract class Promo extends Equatable {
   final String eventName;
   final String poster;
-  final DateTime duration;
+  final int duration;
 
   const Promo({
     required this.eventName,

pubspec.lock

@@ -259,6 +259,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.1"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      sha256: "759d1a329847dd0f39226c688d3e06a6b8679668e350e2891a6474f8b4bb8525"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
   http_multi_server:
     dependency: transitive
     description:

pubspec.yaml

@@ -39,6 +39,7 @@ dependencies:
   get: ^4.6.5
   mockito: ^5.4.2
   json_annotation: ^4.8.1
+  http: ^1.1.0
 
 dev_dependencies:
   flutter_test:

readme-img/geeks-vs-repetitive.jpg

@@ -0,0 +1,5 @@
+{
+  "duration": 3,
+  "eventName": "Love O'clock",
+  "poster": "Love"
+}

test/helpers/dummy_data/promo_dummy.json

@@ -0,0 +1,9 @@
+import 'dart:io';
+
+String readJson(String name) {
+  var dir = Directory.current.path;
+  if (dir.endsWith('/test')) {
+    dir = dir.replaceAll('/test', '');
+  }
+  return File('$dir/test/helpers/dummy_data/$name').readAsStringSync();
+}

test/helpers/json_reader.dart

@@ -0,0 +1,9 @@
+import 'package:http/http.dart' as http;
+import 'package:mockito/annotations.dart';
+import 'package:test_driven_development/promo/domain/repositories/promo_repository.dart';
+
+@GenerateMocks(
+  [PromoRepository],
+  customMocks: [MockSpec<http.Client>(as: #MockHttpClient)],
+)
+void main() {}