如何使用 ArchUnit 检查构造函数是否在正确的 类 中被调用？

Question

有没有办法用 ArchUnit 强制执行这样的规则：

@ArchTest
    static final ArchRule events_must_be_created_by_aggregates =
            noConstructors().that().areDeclaredInClassesThat().areAssignableTo(Event.class).should().beCalledInClassesThat().areNotAssignableFrom(Aggregate.class)
                    .because("the aggregate should manage its own lifecycle and events");

这里的问题是 beCalledInClassesThat 不存在，我没有找到任何可以让我实施这样的测试的东西。

Answer 1

每当您在预定义的流畅 API 中遗漏某些内容时，请尝试定义自定义 predicate/condition。 在您的情况下：这对您有用吗？

@ArchTest
static final ArchRule events_must_be_created_by_aggregates = constructors()
    .that().areDeclaredInClassesThat().areAssignableTo(Event.class)
    .should(new ArchCondition<JavaConstructor>("be called from aggregates") {
        @Override
        public void check(JavaConstructor constructor, ConditionEvents events) {
            for (JavaConstructorCall call : constructor.getCallsOfSelf()) {
                if (!call.getOriginOwner().isAssignableTo(Aggregate.class)) {
                    events.add(SimpleConditionEvent.violated(call, call.getDescription()));
                }
            }
        }
    });