setup.ts file for karma testing NG10/NS7

src_tests_setup.ts

/* eslint-disable @typescript-eslint/restrict-template-expressions */
/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
/* eslint-disable @typescript-eslint/no-unsafe-call */
/* eslint-disable @typescript-eslint/no-unsafe-return */
/* eslint-disable @typescript-eslint/no-unsafe-member-access */
/* eslint-disable no-console */
/* eslint-disable @typescript-eslint/no-explicit-any */
/* eslint-disable @typescript-eslint/no-unsafe-assignment */

/* PATH /src/tests/setup.ts */
import '@nativescript/zone-js'; // only needed to prevent the error message 'Angular needs Zone.js, otherwise remove it if you get the 'Zone already loaded' message.

import { TestBed } from '@angular/core/testing';
import { platformBrowserDynamicTesting } from '@angular/platform-browser-dynamic/testing';
import { BrowserTestingModule } from '@angular/platform-browser/testing';

export function customNsTestBedInit(): void {
  TestBed.initTestEnvironment(
    BrowserTestingModule,
    platformBrowserDynamicTesting() // NS_COMPILER_PROVIDERS)
  );
}

export function customNsTestBedAfterEach(resetEnv = true, resetFn = customNsTestBedInit): void {
  TestBed.resetTestingModule();
  if (resetEnv) {
    TestBed.resetTestEnvironment();
    resetFn();
  }
}

export function customNsTestBedBeforeEach(
  components: any[],
  providers: any[] = [],
  imports: any[] = [],
  entryComponents: any[] = []) {
  return (done) => {
    // If there are no entry components we can take the simple path.
    if (entryComponents.length === 0) {
      TestBed.configureTestingModule({
        declarations: [ ...components ],
        providers: [ ...providers ],
        imports: [ ...imports ]
      });
    }
    TestBed.compileComponents()
      .then(() => done())
      .catch((e) => {
        console.log(`Failed to instantiate test component with error: ${e}`);
        console.log(e.stack);
        done();
      });
  };
}

// Note. This testing infrastructure can test components but it
// can only test the functions. No rendering of the dom is done
// Nativescript runs its own zone.js which intereferes with the
// zone.js code run by NG10. So my test suite completely disables
// the nativescript code and it should not execute anywhere.
// ** In testing if you inject something that calls any nativescript
// code it will reactivate the nativescript zone.js. make sure to stub
// this out so that it does not interfere with the unit test.


/// intialize Test bed.
customNsTestBedInit();