Catching CRASH or ANR of the Android app directly on your smartphone

In this post I just want to share with you my application which I'm using during daily testing activities and which helps me to have the CRASH stacktrace or ANR report immediately after it happens on your Android device - https://play.google.com/store/apps/details?id=com.error.hunter.

Please share your feedback regarding improvements if you'll have some :)

Update: I've uploaded this app source code to the github, so, you can also contribute if you want - https://github.com/denyszelenchuk/bug_radar.

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Discovering Espresso for Android: matching and asserting view with text.

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Hi, for today I have some tips about swiping ViewActions in Espresso for Android. As you may know the latest Espresso release contains new swipeLeft and swipeRight ViewActions. They both are really useful when you'd like to swipe between activity fragments, tab layouts or any other UI elements. You can use it as any other view action: onView(withId(R.id.viewId)).perform(swipeRight()); But be aware that doing this you will operate on a view, in our case R.id.viewId, but not on the screen size. That means that to swipe right or left, for example between fragments you have to deal with some parent layout or maybe list view. If you take a look inside Espresso's ViewActions.java class you will see below code for swipeRight() method: public static ViewAction swipeRight() { return new GeneralSwipeAction(Swipe.FAST, GeneralLocation.CENTER_LEFT, GeneralLocation.CENTER_RIGHT, Press.FINGER); } As you may g...

Discovering Espresso for Android: creating custom Matchers.

Hi! This time I'll talk about custom Matchers that can be used with Espresso for Android (and not only). We'll go through steps how to create them and I'll provide you examples of already existing and very useful ones. First of all a couple of words about Hamcrest library , which provides us with common matchers and possibility to create custom matchers, to pay tribute to it's authors. From Humcrest project main page - Hamcrest provides a library of matcher objects (also known as constraints or predicates) allowing 'match' rules to be defined declaratively, to be used in other frameworks. Typical scenarios include testing frameworks, mocking libraries and UI validation rules. In one of my previous post I've described already how to use some custom Hamcrest matchers. The base idea is that matcher is initialized with the expected values, which are compared against the actual object we are matching when invoking it. Among of the common matchers you...

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