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Mobile Testing - Espresso Framework


Android apps development doesn’t differ much from java/JEE applications development, given that they use Java and ADK (Android development kit) as the programming language which uses the same functions as the JDK (Java development kit). It also offers you the choice to add libraries so that one can build configuration and be able to reuse the functionalities in place. However, beware that’s when one is concerned with writing apps in a professional manner achieving a solid test that is proven to be harder. Being a software developer a certain quality is required in order to pass the test part and be able to work automatically given that during development there is always a cycle which involves the following stages:

  • Development of a feature
  • Deployment to device
  • Manual testing
  • Fix of wrong implementation and lastly
  • Deployment to device

Therefore, for such an in elegant mobile development process to reduce manual testing effort one has to start writing tests with the help of android application development which in turn helps in reducing the overhead of manual testing.

With a single app, one is advised to test user interactions; this is so because in this way it helps ensure that’s the users don’t get poor experience or even unexpected results while using the app.

The user interface tests prove that the user interface is working correctly; the espresso framework is meant for those developers especially who believe that automatic testing is an integral part of the entire development cycle.

An espresso can be unlocked by those familiar to codebase while undergoing a test but one should also make a note that it can be used for black box testing. The espresso framework mimics the user input of the user interface. This framework is capable of performing manipulations for a user interface and then declares the right outcome of the input with a JUnit 4 Syntax.

The espresso framework makes it possible that the UI elements are loaded and displayed to the UI and can be automatically executed during the app-build phase or even the standalone phase, the espresso framework has also been called a standard black box test because it has knowledge about the entire layout like knowledge of the code that stands behind the UI functions and the Ids of UI elements.

To run these espresso tests however one needs some infrastructure like IDE like android and another device which can execute tasks studio, this device can be an emulator or a physical connected device.

Benefits of Espresso Framework

  1. This framework introduced by Google is considered to be fastest as it has a small, predictable and user friendly API.
  2. Being an open source test automation framework, it enables users and testers to test their user interfaces in an efficient manner.
  3. Using this framework, the tester can easily write brief and reliable test cases.
  4. Easily synchronizes with the user interfaces thread.