jest.config.js

const alias = require('./alias')

module.exports = {
    globals: {
        // work around: https://github.com/kulshekhar/ts-jest/issues/748#issuecomment-423528659
        'ts-jest': {
            diagnostics: {
                ignoreCodes: [151001]
            }
        }
    },
    testEnvironment: 'jsdom',
    transform: {
        '^.+\\.vue$': 'vue-jest',
        '^.+\\.(t|j)sx?$': [
            'babel-jest',
            {
                presets: [
                    [
                        '@babel/preset-env',
                        {
                            targets: {
                                node: true
                            }
                        }
                    ],
                    [
                        '@babel/preset-typescript',
                        {
                            isTSX: true,
                            allExtensions: true
                        }
                    ]
                ]
            }
        ]
    },
    moduleNameMapper: alias,
    moduleFileExtensions: ['ts', 'tsx', 'js', 'json'],
    // u can change this option to a more specific folder for test single component or util when dev
    // for example, ['<rootDir>/packages/input']
    roots: ['<rootDir>']
}