All language subtitles for 380 Introduction to writing tests.en

In this section we are going to learn about writing tests in flutter and I believe that testing is a

very important topic especially if we want to shape our applications in production.

So before we learn about testing in theater I want to talk briefly about the benefit of writing tests

in general and in my opinion.

The main point of testing is to verify that our code behaves as expected and while we could and should

test our applications manually writing tests gives us much more confidence that our code is correct.

Not only that but we could set up a continuous integration system that runs all the tests every time

we push our code to the main repository and this becomes especially important when working in a team

where it's likely that other developers are working on different areas of the project at the same time.

So adding code that is complete with tests is a good way of ensuring that we can ship robust and maintainable

software on the other hand the costs of not adding tests can add up very quickly as bugs are found and

the product doesn't behave as expected.

And this situation can be particularly severe when users experience problems in production because the

feedback loop of reporting and fixing issues is much longer and costly compared to writing that correct

code in the first place.

OK.

So writing tests is a good idea that can save us a lot of headaches in the future.

On the other hand testing is a topic that can be confusing.

So in this section I will start from the very basics of writing tests in flutter but we will also cover

more advanced testing topics and the great news is that we already have a completed application that

will serve as a great example as we learn how to write tests and because testing is a broad topic.

You can think of this section as a mini course in itself but once again I feel that it is very important

to cover this so that you will have the knowledge that you need to write tests for your flatter ups.

OK so let's continue on the next video.