Join Chiu-Ki Chan for an in-depth discussion in this video RecipeApplication, part of Effective Android Testing for Mobile Developers.
- [Instructor] Now that we have "SharedPreferencesFavorites"…and "InMemoryFavorites",…how do we use one in the app,…and the other in the test?…We will use "Application" to help us.…First, let's create the application.…Go to "app", "src", "main", "java",…right click on the package name, "New", "Java Class".…We will call it "RecipeApplication".…The package will have the prefix, ".injection".…
The "RecipeApplication" will extend "Application".…Inside this "Application",…we are going to add a function called "getFavorites".…This will return a latently-initialized…"SharedPreferencesFavorites".…This way, it is only going to be initialized…when someone uses it.…To do that, we will add a private variable,…"private Favorites" and put "favorites",…and set it to "null;" initially.…
Then we will add the "getFavorites" function,…"public_Favorites getFavorites()".…When the variable favorites is null,…we will need to initialize it,…"if (favorites == null)",…then "favorites = new SharedPreferencesFavorites".…It need a context, which is "(this)", the application.…
Looking for study partners?Join the Associate Android Developer Exam study group
There's a difference between knowing how to implement testing and knowing when and why to do it. In this project-based course, get acquainted with best practices for testing Android apps by walking through a development workflow where testing is integrated throughout the process. As instructor Chiu-Ki Chan shows how to build the app, she explores the differences between JVM and on-device tests, explaining when to use each one. She also explores advanced techniques such as the MVP pattern. By demonstrating how testing fits into an app development workflow, she helps you bolster your ability to catch bugs—and determine where and when you should test.
- Why test?
- Local vs. on-device
- Code coverage
- UI testing
- Hermetic environment
- Dependency injection
- Testing with MVP
Skill Level Intermediate
1. Testing Considerations
2. Test as You Go
3. UI Testing
4. Hermetic Environment
5. Robot Pattern
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.