Branches - Xinran

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Comprehension Questions

Question	Answer
What is the flow of data from input on the form to being a new card on the board?	Firstly input data, and update the state variables, then passing the new card data to parent component by calling addCardCallback function through props, then add the new card into card list
What function did you use to make the GET request from the API to get the list of cards? Why use that function?	I used componentDidMount function to get the list of cards. This method is used for initial component creation and load external data from an API.
How do snapshot tests differ from unit tests?	By using snapshot tests, we used the rendered html file as the snapshot file. We can easily get the future change by comparing the difference with the snapshot file. Unit tests are used to check if functions perform the functionality that they should perform.
What purpose does Enzyme serve in testing a React app?	I saw it was wrote in App test but not sure how to use it.