Profile picture

Debugging Q&A and Videos

About Debugging

What do mobile testing strategies look like at top tech companies?

Senior Software Engineer at Series E Startup profile pic
Senior Software Engineer at Series E Startup

I work in as an iOS engineer. My current company is a startup that's scaling up fast. In classic startup fashion, testing was historically not a top priority here. As a consequence, we struggle with lots of manual QAing and low code confidence when modifying pieces of poorly tested legacy code.

This has improved in the past year simply by unit testing every new piece of code by default and by introducing unit tests in legacy code as we touch it, boy scouting style.

At this point, I think we need to step it up and I'm looking forward to formalising a testing strategy for our mobile team.

Here are some ideas I have:

  • In the realm of unit tests:
    • I want to introduce API contract tests because our back-end API lacks documentation. In these tests we'd unit test the way we build our requests to API endpoints, and we'd have a sample JSON response from the server to test that the app can parse it into our data models as expected.
    • I want to introduce localisation tests because our app supports many languages but we are always manually testing localisation. In these tests, we'd assert that the outputs of our formatting logic are the ones we want for different locales.
  • In the realm of user interface tests:
    • I want to introduce snapshot testing, because right now the only way we can test that our views are rendered as expected for different view configurations (for example RTL vs LTR, empty content, loading content, content in verbose languages, etc.) is manually.
    • I want to introduce UI tests (sparingly, only for key flows) because we have no e2e tests. Currently, key flows are tested manually and frequently to prevent regressions, which takes lots of time.

What other testing strategies can I propose to establish some standard we can use to further improve our code confidence, reduce bugs, and rely more on automated testing?

How do the top tier tech companies approach mobile testing?

Show more
Posted a year ago
11.7K Views
4 Comments