EasyMock“意外的方法调用”尽管期望方法声明 [英] EasyMock "Unexpected method call" despite of expect method declaration

问题描述

我的EasyMock的预期方法被认为是意外的，尽管我没有使用严格的模拟，并且该方法在被回复之前已经声明。

My EasyMock's expected method is perceived as unexpected, although I do not use and strict mocks, and the method is already declared before being replied.

测试在此失败代码行：

Intent batteryIntent = context.getApplicationContext().registerReceiver(null,
        new IntentFilter(Intent.ACTION_BATTERY_CHANGED));

测试：

@Before
public void setUp() {
    mocksControl = createControl();
    contextMock = mocksControl.createMock(Context.class);
    //(...)
}

@Test
public void test() {
    expect(contextMock.getApplicationContext()).andReturn(contextMock).anyTimes();
    expect(contextMock.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)))
        .andReturn(someIntent1).once();
    expect(contextMock.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)))
        .andReturn(someIntent2).once();
    mocksControl.replay();
    //(...) tested method is invoked on class under the test
}

我得到错误：

java.lang.AssertionError: 
  Unexpected method call Context.registerReceiver(null, android.content.IntentFilter@c009614f):
    Context.registerReceiver(null, android.content.IntentFilter@c009614f): expected: 1, actual: 0
    Context.registerReceiver(null, android.content.IntentFilter@c009614f): expected: 1, actual: 0

推荐答案

当您编写类似内容时，

expect(contextMock.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)))
        .andReturn(someIntent1).once();

Easymock期望调用 registerReceiver 方法

Easymock expects the registerReceiver method to be called with exact parameter with which it is told to expect,

为了避免这种情况，在期望任何方法并编写其行为的同时，请使用anyObject（）方法，如下所示：-

So to avoid this ,while expecting any method and writing its behaviour, use anyObject() method like this:-

expect(contextMock.registerReceiver(null, EasyMock.anyObject(IntentFilter.class)))
            .andReturn(someIntent1).once();

easymock理解，当对象的任何对象都必须模拟对预期方法的所有调用时， IntentFilter 作为参数传递

by this, easymock understands that it has to mock all the calls to expected method, when any object of IntentFilter is passed as a parameter

希望这会有所帮助！
祝你好运！

Hope this helps! Good luck!

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