The getTester method sets the Env to use a Tester implementation (for example, the Jest Aspect).
getTester(path: string, tester: any): Tester
For example:
// my-env.env.ts import { TesterEnv } from '@teambit/envs'; import { JestMain } from '@teambit/jest'; export class MyEnv implements TesterEnv { constructor( // ... private jestAspect: JestMain ) {} // ... getTester(jestConfigPath: string, jestModule = jest): Tester { const jestConfig = require.resolve('./jest/jest.config'); return this.jestAspect.createTester(jestConfig); } }