FAQ: Automate and Organize Tests - Teardown

This community-built FAQ covers the “Teardown” exercise from the lesson “Automate and Organize Tests”.

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This exercise can be found in the following Codecademy content:

Web Development

Learn JavaScript Unit Testing

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Hi colleagues about the chapter of “Automate and organise tests” exactly in the lesson of Teardown i don’t know the utilities exactly of doing a teardown in test because at the test when he added a file in the directory and in the end of the test he deleted using the Teardown tool.

Hi there, having issue understanding step 2
" we are modifying the environment by creating a new message.txt file. However, the current tests do not have a teardown phase. The test fails because the second test appends an empty string to the file created from the first test instead of creating a new file with just an empty string."

I thought that the second test will add an empty string into the message.txt file which was created by the first test and will be able to pass. I don’t understand why the second test failed even after reading the explanation.

So from my understanding, first test created message.txt and add the string ‘Hello Node.js’
Second test, will find the existed file message.txt and add an empty string after the “Hello Node js”
(" * fs.appendFileSync(path, str) creates a new file at path with the string str as content. If a file at path exists, the string str will be appended to the end.")

Can anyone explain? Thank you so much