Java jmock,在每次调用时返回新对象
我正在设置一个模拟对象,该对象应该在每次对其调用方法f()时返回一个新的业务对象。如果我简单地说returnValue(new BusinessObj()),它将在每次调用时返回相同的引用。如果我不知道将有多少调用f(),即我无法使用OnConcecutiveCalls,我如何解决此问题?您需要声明一个Java jmock,在每次调用时返回新对象,java,jmock,Java,Jmock,我正在设置一个模拟对象,该对象应该在每次对其调用方法f()时返回一个新的业务对象。如果我简单地说returnValue(new BusinessObj()),它将在每次调用时返回相同的引用。如果我不知道将有多少调用f(),即我无法使用OnConcecutiveCalls,我如何解决此问题?您需要声明一个CustomAction实例来代替标准的returnValue子句: allowing(mockedObject).f(); will(new CustomAction("Returns new
CustomAction
实例来代替标准的returnValue
子句:
allowing(mockedObject).f();
will(new CustomAction("Returns new BusinessObj instance") {
@Override
public Object invoke(Invocation invocation) throws Throwable {
return new BusinessObj();
}
});
下面是一个独立的单元测试,演示了这一点:
import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.api.Invocation;
import org.jmock.integration.junit4.JMock;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.jmock.lib.action.CustomAction;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
@RunWith(JMock.class)
public class TestClass {
Mockery context = new JUnit4Mockery();
@Test
public void testMethod() {
final Foo foo = context.mock(Foo.class);
context.checking(new Expectations() {
{
allowing(foo).f();
will(new CustomAction("Returns new BusinessObj instance") {
@Override
public Object invoke(Invocation invocation) throws Throwable {
return new BusinessObj();
}
});
}
});
BusinessObj obj1 = foo.f();
BusinessObj obj2 = foo.f();
Assert.assertNotNull(obj1);
Assert.assertNotNull(obj2);
Assert.assertNotSame(obj1, obj2);
}
private interface Foo {
BusinessObj f();
}
private static class BusinessObj {
}
}