Testing an Express Application: Part I

The video tutorial explains how to write test cases for an Express REST API, focusing on setting up environment variables and configuring separate databases for development and testing. It also covers configuring Jest for a Node.js environment to ensure proper testing of the task manager app. The tutorial emphasizes the importance of using separate environments to avoid data conflicts and provides guidance on setting up Jest configuration in the package.json file.

What is the purpose of writing test cases for an Express REST API?

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Explain the significance of using a separate environment for testing instead of the development environment.

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What should be included in the test.env file for the test environment?

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Why is it important to set the test environment to 'node' in the Jest configuration?

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Describe the process of copying the dev.env file to test.env. Why is this done?

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What are the potential issues of running test cases against the development database?

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How do you ensure that the correct environment variables are loaded when running the test script?

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