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We just got our first test running which is fantastic.

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But before we continue I want to give you an extremely important note.

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Remember just by itself does not have support for typescript out of the box.

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So we are using that extra little library that we installed very quickly back inside our package not

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just on file.

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We installed T.S. Jess.

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That is what gives just the ability to understand typescript.

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Now this library or something inside a jest or something along this entire tool chain sometimes does

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not work correctly.

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So every now and then I can guarantee you are going to run into this every now and then.

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You're going to see a test failing.

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You're then going to go and try to fix it.

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You're going to save a file and then you're going to see that the test is still failing.

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Even if you really think that you fix the issue up.

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So sometimes either jest or T.S. just I don't really know which one is causing the issue.

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Sometimes they do not detect changes that you are making to your files.

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It is really hard for me to replicate this issue in any way but it's something that I noticed while

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I was developing this application.

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So if you ever run into a scenario where a test is failing you go and change a file and you really think

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you fix the issue but it's still not passing.

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Here's how to solve it.

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All you gotta do restart just hit control see rerun NPM run test and now just should see the updated

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file.

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So again if you start to make changes and you don't see them reflected in your test suite just restart

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that's all you gotta do.

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So that's all I want to mention here.

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It is important enough because I don't want to get it stuck at some point time trying to figure out

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what's going on.

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Quick pause continue.

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Just a minute.