Junit中未涵盖的2个分支的偶像1 [英] eclemma 1 of 2 branch not covered in Junit

问题描述

JUnit文件

public class SomeClassTest {
    ...
    @Test
    public void testSomeContextFailure() throws Exception {
        SomeClass sc = new SomeClass();
        try {
            sc.SomeContext(null,null);
            fail("IllegalArg expected");
        } catch (IllegalArgumentException e) {}
    }

    @Test
    public void testSomeContextSuccess() throws Exception {
        SomeClass sc = new SomeClass();
        SomeContext in = new SomeContext();
        in.setName("something");
        in.setId("5");
        in.setPoints(SomePoint.X);
        try {
            assertNotNull(sc.SomeContext(in,null));
        } catch (Exception e) {}
    }
}

Java文件

public class SomeClassTest {
    @Autowired(required = true)
    private InsuredDAO insuredDAO;

    @Override
    public context SomeContext(context c, unused u) throws Exception {
        if(c == null)
            throw new IllegalArgumentException();

        insuredDAO.increaseValue(c);
        if(c.getPoints() != null) {
            ...do something
        }
        return c;
}

在Java文件if(c == null)中以黄色突出显示，并显示一条消息，指出未覆盖2个分支中的1个.

In java file if(c == null) was highlighted yellow with message saying 1 of 2 branches not covered.

throw new IllegalArgumentException();

突出显示的绿色

insuredDAO.increaseValue(c); 

此行及其下方的所有内容均为红色

Everything on and below this line is red

我想念什么? (两个都通过了JUnit测试，但是为什么不包括在内)?

What am I missing? (JUnit test was passed on both but why it isn't covered)?

推荐答案

可能为时已晚，但是如果有人遇到此问题...
第一:
您有两项测试，其中一项失败.作为唯一通过的测试，测试了空"值，后缀将if语句标记为部分覆盖". ->已对null检查进行了测试，但是没有使用给定的Object.
它不能像调试器那样工作，测试要运行到这一行，然后才失败，但是直到此阶段为止所做的一切都将被分析".难题只是分析完全运行(并成功)的测试.
第二:
在您的课堂上有insuredDAO.increaseValue(c);，它是自动连接的.在我的测试中，我必须模拟此Object，否则它将在该行失败并显示NullPointerException，因为在junit测试中未完成自动装配，因此insuredDAO为null且方法调用将抛出NullPointerException. > 应该会在您的IDE中弹出；)

Might be a bit too late, but if someone else comes across this...
First:
You have two tests of which one of them fails. As the only test, that went through, tested the "null" value, eclemma marks the if statement as "partially covered". -> null check was tested, but with the given Object, it was not.
It doesn't work that way like a debugger "the test ran up until this line, then it failed, but everything it did until this stage will be analyzed". eclemma just analyzes fully run (and succeeded) tests.
Second:
In your class you have insuredDAO.increaseValue(c);, which is autowired. In my tests I have to mock this Object, otherwise it will fail with a NullPointerException at that line because autowiring is not done in junit tests, therefore insuredDAO is null and the method call will throw a NullPointerException.
Should have popped up in your IDE, though ;)

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