Testing for Mobile Developers: Useful Videos from Android Meetup
It is to this topic that we dedicated the meeting of Android developers and mobile testers at the Android Paranoid meetup and discussed:
- How can a developer bring a project to stability using testing?
- How can a developer help a tester?
- How to choose the best tool to improve the quality of development?
Timecodes are affixed, welcome under cat.
Stability 3d
Vladimir Genovich, Lead Programmer (Yandex.Money)
I started writing tests quite late. This is because in many testing materials a conditional example looks like “assertEquals (2 + 2, 4)”, and then you look at your code and do not know what to start. And then the day came when on a new project I decided to write the code so that it was better prepared for testing. Then I figured out why some tests do not help and how to avoid it, and then I learned how to apply all this to legacy code.
The purpose of the report is to show developers (newcomers to testing) how testing can be implemented in legacy and how it will help put the project in order in terms of stability. And in general, I will share my own practices that will help you write better code.
Timecodes
0:20 – How the history of testing began
1:46 – Preparing your code for testing. Pure functions
3:02 – What to do with legas? 3d approach: prove, trust, admit.
3:40 – Prove that the code works with tests
5:00 – Testing pure functions on a range of input values
6:30 – Why you shouldn’t use random values
8:12 – How to choose ranges of values for testing
10:39 – When can Unit tests fail?
11:36 – Trust your datatypes and verified code
12:48 – We wrap primitives in objects to reduce possible options
14:05 – Factory methods for creating objects
15:08 – Either concept
16:44 – 2 cases for testing factory methods
17:43 – The code covered by tests works, but the application crashes: why?
18:09 – Assume that external systems may not work correctly
18:50 – Either for protection
19:23 – Creation of “clean” pipelines from input to output
21:20 – Why write so many tests, does it still work?
22:28 – Summing up: prove, trust, admit.
How to make life easier for a mobile tester
Dmitry Zhakov, tester (Yandex.Money)
In our company, mobile development and testing work as a single whole, we do our best to help each other. And we can say with confidence that you can develop not only features in the application! You, as a developer, can help testing, which will increase the speed of product verification. In my talk, I will consider the methods that work in Yandex.Money. They allow you to reduce the number of steps during testing or preparing data for it.
Timecodes
1:55 – How does the path of a tester begin? Testing methods
2:15 – Tip 1. Logging: what is needed and what to do if there are too many logs
4:03 – Logging when checking user events
7:00 – Checking user behavior events: Appium and Espresso
10:29 – Tip 2: Taking care of matchers and UI element accesses
12:35 – Chuck: a tool to quickly access information
13:50 – Secret menu for developer and QA
16:48 – Application launch
18:42 – How to identify the device in the mobile “zoo”?
23:12 – Test environment: test server, traffic spoofing and user preparation system
29:56 – Summing up: how the developer can help the tester
The most fashionable UI-test framework in 2k20
Dmitry Manko, Android developer (Citymobil)
Sooner or later, all developers will be faced with the fact that they want to improve the quality with automated means. The Android development market is overflowing with great tools right now, and you need to pick the best one. In the report, I will provide an overview of popular frameworks on a small test case, how different frameworks cope with simple and non-standard things.
