Angular Ivy
Currently, jest-preset-angular
is partially compatible with Angular Ivy. To make sure that Jest uses the Angular Ivy,
you must run ngcc
before running tests. ngcc
will transform all Angular-format packages to be compatible
with Ivy compiler.
jest-preset-angular
also provides util script to help you to run ngcc
with Jest but this script only works via the
JavaScript version of Jest config
// jest.config.js
require('jest-preset-angular/ngcc-jest-processor');
module.exports = {
// [...]
};