【笔记】Eclipse and Java for Total Beginners—007

Lesson 07 – Create Book Class

• Create BookTest before creating Book class
• Test Book constructor
• Create get and set methods

1. 新建一个JUnit test case, name为BookTest, Class under test为空，因为尚未建Book class.

2. 建立Book class, 注意目录为src。

3. Test-first approach to Book class

• Create BookTest class.
• Create testBook() method to test constructor.
• Used Eclipse Quick Fix to correct compiler errors.
• Coded constructor in Book class.
• Ran and passed JUnit test.

package org.totalbeginner.tutorial;

 import junit.framework.TestCase;

 public class BookTest extends TestCase {
    
    public void testBook() {
        Book b1 = new Book("Great Expectations");
        assertEquals("Great Expectations", b1.title);
        assertEquals("unknown author", b1.author);
    }

}

package org.totalbeginner.tutorial;

 public class Book {

    public String title;
    public String author;

    public Book(String string) {
        this.title = string;
        this.author = "unknown author";
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getTitle() {
        return title;
    }

}