使用 JUnit 进行 Java 测试方法

Question

我是 junit 测试的新手，所以我问这些方法应该如何在 junit 测试中？

    public void addUser(String username) {
            usernames.add(username);
        }
    public String toString() {
            StringBuilder sb = new StringBuilder();
            sb.append(name+"\n");
            if ( usernames.size() == 0 ) 
                sb.append("EMPTY\n");
            for ( String user : usernames ) 
                sb.append(user+"\n");
            return sb.toString();
        }

Answer 1

给你一个开始:

@Test
public void test1() {
    YourObject o = new YourObject();
    o.addUser("TheUserNameYouWantToTest");
    Assert.assertEquals("YourExpectedString", o.toString());
}