infinum android talks #19 - stop wasting time fixing bugs with tdd by domagoj korman

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Stop wasting time fixing bugs with TDD

DOMAGOJ KORMAN

PROBLEMS

SOLUTION

WHAT WE USE

Robolectric - mocks Android

Mock Web Server - web server for testing

Dagger - dependency injection

THE NOOB

Several months of experience

Never wrote a single Robolectric test

Robolectric was black magic

“Hey Domagoj! You are starting on a new project

next week. Do you want to learn to write tests?”

“Hey Domagoj! You are starting on a new project

next week and you will have to write tests.”

PROJECT SPECIFICS

Dynamic layout based on API responses

Multiple user types

API still not ready

FRUSTRATION BEGINS

How to setup Dagger for tests?

How to setup Robolectric?

How to write tests?

THE ENLIGHTENMENT

HOW DID I DO IT?

1) Create layout 2) Write tests 3) Write application logic 4) Fix layouts 5) Profit

REQUIREMENTS

Experience

API specification

Will to learn Robolectric

TDD BEGINS

You can debug tests!

You can mock all possible responses!

You can test any screen in a matter of seconds!

Any questions? DOMAGOJ.KORMAN@INFINUM.CO

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