java - IllegalArgumentException:期望 block 内的条件语句无效

Question

我在测试用例中编写的 Expectations block 有问题:

new Expectations() {
      {
        mFindHandlerMock.findAll((Model) any, (Set<Id>) any, false);
        if (!pWithRealData) {
          result = Collections.emptySet();
        } else {
          result = pAllData;
        }
        times = 1;

        Deencapsulation.invoke(mDb, "readSqlQuery", withAny(String.class));
        result = "select * from realdata";
        times = 1;
      }
    };

测试用例崩溃:

java.lang.IllegalArgumentException: Invalid conditional statement inside expectation block

就在这里:

if (!pWithRealData) {

这只是一个简单的 boolean 值，在本例中为false。

我完全不知道为什么会发生exception。 我已经用谷歌搜索过，但没有找到任何帮助。

你能帮帮我吗？

Answer 1

来自 1.14 版的 JMockit 发行说明:

Enhancement: Conditionals and loops will now trigger an exception when found inside an expectation recording block, to prevent API misuse and to encourage simpler tests. See issue #97.

与此相关的GitHub问题:

• > https://github.com/jmockit/jmockit1/issues/97
• > https://github.com/jmockit/jmockit1/issues/123

在一期中，他们声明:

Yes, and this is as intended, to avoid tests getting too complicated when recording expectations. A full test was not shown, but it looks to me that recording the specific expectations directly would be better in this case.

在 JMockit source您可以看到哪些其他类型的条件和循环会抛出该异常。

简而言之，从 JMockit 1.14 开始，您不允许在 Expectation block 中使用条件(例如 if 语句)和循环。