jest.config.js

const path = require( 'path' )

module.exports = {
	rootDir: path.resolve( __dirname ),

	// Override the setup with some of our own stuff.
	setupFilesAfterEnv: [
		'<rootDir>/src/test/setup-test-framework.js',
	],

	modulePathIgnorePatterns: [
		'<rootDir>/freemius',
		'<rootDir>/build',
	],

	// Custom mappers.
	moduleNameMapper: {
		'^~stackable(.*)$': '<rootDir>/src$1',
		'.*\\.s?css$': '<rootDir>/src/test/scss-stub.js',
		'.*\\.(png|jpg|gif)$': '<rootDir>/src/test/image-stub.js',
		'.*\\.svg$': '<rootDir>/src/test/svgr-mock.js',
		stackable: '<rootDir>/src/test/stackable-mock.js',
		'@wordpress/ajax': '<rootDir>/src/test/ajax-stub.js',
		'@wordpress/codeEditor': '<rootDir>/src/test/ajax-stub.js',
		'@wordpress/api': '<rootDir>/src/test/wp-api-stub.js',
		'@wordpress/plugins': '<rootDir>/src/test/wp-plugins.js',
	},

	transform: {
		'^.+\\.[jt]sx?$': '<rootDir>/node_modules/babel-jest',
		'^.+\\.mp4$': '<rootDir>/src/test/file-transformer.js',
	},

	// Ignore Unexpected identifiers in node_modules/simple-html-tokenizer/dist/es6/tokenizer.js
	transformIgnorePatterns: [
		'<rootDir>/node_modules/(?!simple-html-tokenizer)',
	],

	// All relevant code should be included in coverage.
	collectCoverageFrom: [
		'src/(block|components|icons|welcome|help|format-types|higher-order)/**/*.js',
		'!src/block/ghost-button/**/*', // Deprecated block, don't test anymore.
		'!src/block/pullquote/**/*', // Deprecated block, don't test anymore.
		'!**/__test__/**/*',
	],

	testMatch: [ '**/__tests__/**/*.[jt]s?(x)', '**/?(*.)+(spec|test).[jt]s?(x)' ],

	testPathIgnorePatterns: [
		'/node_modules/',
		'<rootDir>/pro__premium_only/',
		'/src/block',
	],
}