Lesson 3 : Testing, Debugging and using Support Library

3.1 : Menggunakan Debugger

Tugas 1. Membuat Proyek dan Aplikasi SimpleCalc

1.1 Unduh dan buka proyek SimpleCalc

1.2 Menjelajahi Layout

1.3 Jelajahi kode aplikasi

Tugas 2. Menjalankan SimpleCalc di Debugger

2.1 Memulai dan Menjalankan aplikasi dalam mode debug

2.2 Men-debug aplikasi yang berjalan

Tugas 3: Menjelajahi Fitur Debugger

3.1 Menyusuri eksekusi aplikasi

3.2 Bekerja dengan Breakpoint

3.3 Memeriksa dan memodifikasi variabel

3.2: Menguji Aplikasi dengan Pengujian Unit

Tugas 1. Menjelajahi dan menjalankan SimpleCalc di Android Studio

1.1 Menjelajahi rangkaian sumber dan SimpleCalc

1.2 Menjalankan pengujian dalam Android Studio

Tugas 2. Menambahkan lebih banyak pengujian unit ke CalculatorTest

2.1 Menambahkan lebih banyak pengujian untuk metode add()

2.2 Menambahkan pengujian unit untuk metode penghitungan lain

/*
  * Copyright 2016, Google Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 package com.example.android.SimpleCalc;
 
         import org.junit.Before;
         import org.junit.Test;
         import org.junit.runner.RunWith;
         import org.junit.runners.JUnit4;
         import android.test.suitebuilder.annotation.SmallTest;
 
         import static org.hamcrest.CoreMatchers.equalTo;
         import static org.hamcrest.CoreMatchers.is;
         import static org.hamcrest.Matchers.closeTo;
 
         import static org.junit.Assert.assertThat;
 
 /**
  * JUnit4 unit tests for the calculator logic. These are local unit tests; no device needed
  */
 @RunWith(JUnit4.class)
 @SmallTest
 public class CalculatorTest {
 
     private Calculator mCalculator;
 
     /**
      * Set up the environment for testing
      */
     @Before
     public void setUp() {
         mCalculator = new Calculator();
     }
 
     /**
      * Test for simple addition
      */
     @Test
     public void addTwoNumbers() {
         double resultAdd = mCalculator.add(1d, 1d);
         assertThat(resultAdd, is(equalTo(2d)));
     }
 
     @Test
     public void addTwoNumbersNegative() {
         double resultAdd = mCalculator.add(-1d, 2d);
         assertThat(resultAdd, is(equalTo(1d)));
     }
 
     @Test
     public void addTwoNumbersFloats() {
         double resultAdd = mCalculator.add(1.111f, 1.111d);
         assertThat(resultAdd, is(closeTo(2.222, 0.01)));
     }
 
     @Test
     public void subTwoNumbers() {
         double resultSub = mCalculator.sub(1d, 1d);
         assertThat(resultSub, is(equalTo(0d)));
     }
     @Test
     public void subWorksWithNegativeResult() {
         double resultSub = mCalculator.sub(1d, 17d);
         assertThat(resultSub, is(equalTo(-16d)));
     }
     @Test
     public void mulTwoNumbers() {
         double resultMul = mCalculator.mul(32d, 2d);
         assertThat(resultMul, is(equalTo(64d)));
     }
     @Test
     public void divTwoNumbers() {
         double resultDiv = mCalculator.div(32d,2d);
         assertThat(resultDiv, is(equalTo(16d)));
     }
     @Test
     public void divTwoNumbersZero() {
         double resultDiv = mCalculator.div(32d,0);
         assertThat(resultDiv, is(equalTo(Double.POSITIVE_INFINITY)));
     }
 }