Android – use unit test notifications

I have a bunch of notification types, including the conditions I want to test automatically. My problem now is that I know I can't generate notifications and check whether the UI generated by the notification center is the same as expected

Therefore, I tried to decompose it into calling my broadcastreceiver and intercepting the point where I triggered the notification. So at that time, I can check whether the notification contains all the settings I expected. I have to hope that it will render as expected: -)

In my build.gradle, I added this block:

testOptions {
    unitTests.returnDefaultValues = true
}

This started my trouble. I created intent and called the receiver:

@RunWith(MockitoJUnitRunner.class)
public class NotificationTest {
    @Mock
    Context mMockContext;

    @Test
    public void firsttest() {
        notificationmanager manager = new notificationmanager();
        manager.onReceive(mMockContext, new Intent(notificationmanager.MY_ACTION));
    }
}

This code crashes NullPointerException because I have this good line in broadcastreceiver:

switch(intent.getAction()) {

I can imagine what happened here. The simulation API will not create a real intent, and my data will disappear. How can I test my notification implementation? I think the pending intents I want to test next will not work

What can I do now?

resolvent:

My current solution is as follows:

Intent action = spy(new Intent(notificationmanager.MY_ACTION));
doReturn(notificationmanager.MY_ACTION).when(action).getAction();

However, this is only a solution. Later, I encountered the problem that the notification. Builder () class returned null in the builder mode, so it won't fix it at all