r3dm1ke

import 'package:flutter/material.dart';

// As login page has to handle user input, it has to be stateful
class TODOLogin extends StatefulWidget {

  // Callback function that will be called on pressing the login button
  final onLogin;

  TODOLogin({@required this.onLogin});

r3dm1ke

import 'package:firebase_auth/firebase_auth.dart';

class Authentication {

  final _firebaseAuth = FirebaseAuth.instance;

  Future<FirebaseUser> login(String email, String password) async {
    try {
      AuthResult result = await _firebaseAuth.signInWithEmailAndPassword(
          email: email,

r3dm1ke

// Importing firestore package
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';

class TODOList extends StatelessWidget {

  // Setting reference to 'tasks' collection
  final collection = Firestore.instance.collection('tasks');

  @override

r3dm1ke

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';

class TODOCreate extends StatefulWidget {

  @override
  State<StatefulWidget> createState() {
    return TODOCreateState();
  }
}

r3dm1ke

import 'package:http/http.dart' as http;

// Sending a GET request
const url = 'http://some-api.com/users';
const response = await http.get(url);
print(response.body);
  
// Sending a GET request using .read
const data = await http.read(url);
print(data);

r3dm1ke

import 'package:http/http.dart' as http;

// Sending a POST request
const url = 'https://some-api.com/users';
const payload = {online: false};
const response = await http.post(url, body: payload);
print(response.statusCode); // 200

// Sending a POST request with headers
const headers = {'Content-Type': 'application/json'};

r3dm1ke

import 'package:http/http.dart' as http;

// Create a client instance
const client = http.Client();

// Making first request
const first_response = await client.read('https://some-api.com/data');
print(first_response);

// Second request

r3dm1ke

describe('Mock functions', () => {
  it('can create mock functions', () => {
    const fn = jest.fn();
    fn.mockReturnValueOnce(5);
    
    const result = fn(10);
    expect(result).toBe(5);               // TRUE
    expect(fn).toHaveBeenCalled();        // TRUE
    expect(fn).toHaveBeenCalledWith(10);  // TRUE
  });

r3dm1ke

import axios from 'axios';   // HTTP library
import store from './store'; // Redux store

export const get_data = () => {
  const state = store.getState();
  const {token} =  state;
  return axios({
    url: 'https://some-url.com/api',
    method: 'get',
    headers: {

r3dm1ke

export const do_stuff = () => {
  console.error('Cannot do stuff!');
};