Unable to test with Espresso

[nekdenis]

If I call setText() then callback will never called

Callback onTokenAdded never called because instance of mText in TextView changed. In new instance of mText there is no TokenSpanWatcher in mSpans. So it is not enough to call
text.setSpan(spanWatcher, 0, text.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
only in init() method. Maybe it is good idea to add it to setText() method

[mgod]

I'm sure this is only related to your tests, but why are you calling setText instead of addObject?