todo providers test

todo_providers_test.dart

import 'package:architect_test/entity/todo.dart';
import 'package:architect_test/provider/todo_providers.dart';
import 'package:architect_test/repository/todo_repository.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

import 'package:hooks_riverpod/hooks_riverpod.dart';

class _TodoRepositoryImplDummy implements TodoRepository {
 List<Todo> inMemoryTodoList = [];

 Future<List<Todo>> getTodos() async {
   return inMemoryTodoList;
 }

 Future<void> saveTodos(List<Todo> todos) async {
   inMemoryTodoList = todos;
 }
}

void main() {
 group('test ViewController behaviors:', () {
   final container = ProviderContainer(
     overrides: [
       todoRepository.overrideWithProvider(
           Provider.autoDispose((ref) => _TodoRepositoryImplDummy()))
     ],
   );
   test('initial value of todo list is null', () async {
     expect(container.read(sortedTodos).state, null);
   });

   test('initial load is empty array', () async {
     await container.read(todosViewController).initState();
     expect(container.read(sortedTodos).state, []);
   });

   test('add first todo', () async {
     await container
         .read(todosViewController)
         .addTodo(TextEditingController(text: 'first'));
     expect(container.read(sortedTodos).state[0].content, 'first');
   });

   test('add second todo', () async {
     await container
         .read(todosViewController)
         .addTodo(TextEditingController(text: 'second'));
     expect(container.read(sortedTodos).state[1].content, 'second');
   });

   test('toggle status', () async {
     final Todo firstTodo = container.read(sortedTodos).state[0];
     await container.read(todosViewController).toggleStatus(firstTodo);
     expect(container.read(sortedTodos).state[0].done, true);
   });

   test('change sort order', () async {
     await container.read(todosViewController).changeSortOrder();
     expect(container.read(sortedTodos).state[0].content, 'second');
   });

   test('dispose', () async {
     await container.read(todosViewController).dispose();
     expect(container.read(sortedTodos).state, []);
   });
 });
}

Pragmatic architecture using Riverpod

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