jest.config.js
module.exports = {
testEnvironment: 'node',
transform: {
"^.+\\.tsx?$": "ts-jest"
},
moduleFileExtensions: [
"ts",
"tsx",
"js",
"jsx",
"json",
"node",
],
testRegex: '(/__tests__/.+\\.(test|spec))\\.(ts|js)x?$',
coverageDirectory: 'coverage',
collectCoverageFrom: [
'src/**/*.{ts,tsx,js,jsx}',
'!src/**/*.d.ts',
],
};