Robolectric testing activity creation including intent extras

Question

I have an activity that will grab a pojo from the extras, like so : ``` @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Bundle extras = getIntent().getExtras(); if (extras != null) { MyPojo pojo = extras.getParcelable("pojo"); // do stuff with my pojo here } } // button that shows a toast message } ``` I'm having difficulty being able to test this using Robolectric, I believe I need to use a combination of ShadowIntents and ShadowActivities, but the documentation is a little thin, and any useful tutorials on this particular scenario are rather sparse. This is what I've come up with so far : ``` @Test public void assertClickingTagSightingDisplaysToast() { myActivity = new MyActivity(); myActivity.onCreate(null); ShadowActivity shadowMyActivity = shadowOf(myActivity); shadowMyActivity.setIntent(new Intent().putExtra("pojo", generateAPojo())); ShadowButton shadowButton = (ShadowButton) shadowOf(shadowMyActivit…

Accepted Answer

I hit this very thing myself. It seems that you need to use the shadowActivity to manipulate the Intent, prior to calling your onCreate().

```
Robolectric.shadowOf(activity).setIntent(intent);
```

Seems like manipulating the activity itself should do the trick, but it doesn't. Somebody way smarter than me will have to explain why this is -- or someone only modestly smarter than me to tell you that the above is wrong.

-- Quick note. Since Robolectric appears to be using javassist to manipulate the shadow classed, it's important to do your class binding prior to the first load of a class. I followed their suggestion to do the binding in the Runner.

Robolectric testing activity creation including intent extras

Solution

Problem