25. 25
    Set up Testing Globals in an Application with Jest
    1m 54s

Set up Testing Globals in an Application with Jest

InstructorAndy Van Slaars

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There are things that will happen in all of our test files that we can handle in a centralized fashion. In this lesson, we’ll create a jest configuration file and a test setup file to import utilities that we want to make available for all of our tests.

Brendan Whiting
~ 6 years ago

FYI now getting deprecation warning:

Option "setupTestFrameworkScriptFile" was replaced by configuration "setupFilesAfterEnv", which supports multiple paths.

This new flag takes an array:

module.exports = {
    setupFilesAfterEnv: ['<rootDir>/testSetup.js']
};
Andy Van Slaarsinstructor
~ 6 years ago

FYI now getting deprecation warning:

Option "setupTestFrameworkScriptFile" was replaced by configuration "setupFilesAfterEnv", which supports multiple paths.

This new flag takes an array:

module.exports = {
    setupFilesAfterEnv: ['<rootDir>/testSetup.js']
};

This is a change that was made in Jest 24, which was just released 2 days ago. Nice to see useful deprecation messages 🙂