import { appendToFile, replaceInFile } from '../../utils/fs';

import { ng } from '../../utils/process';

import { expectToFail } from '../../utils/utils';

export default async function () {

// Update the application to use a forward reference

await replaceInFile(

'src/app/app.ts',

"import { Component, signal } from '@angular/core';",

"import { Component, Inject, Injectable, forwardRef, signal } from '@angular/core';",

);

await appendToFile('src/app/app.ts', '\n@Injectable() export class Lock { }\n');

await replaceInFile(

'src/app/app.ts',

'export class App {',

'export class App {\n constructor(@Inject(forwardRef(() => Lock)) lock: Lock) {}',

);

// Update the application's unit tests to include the new injectable

await replaceInFile(

'src/app/app.spec.ts',

"import { App } from './app';",

"import { App, Lock } from './app';",

);

await replaceInFile(

'src/app/app.spec.ts',

'TestBed.configureTestingModule({',

'TestBed.configureTestingModule({ providers: [Lock],',

);

// Execute the application's tests with emitDecoratorMetadata disabled (default)

await ng('test', '--no-watch');

// Turn on emitDecoratorMetadata

await replaceInFile(

'tsconfig.json',

'"experimentalDecorators": true',

'"experimentalDecorators": true, "emitDecoratorMetadata": true',

);

// Execute the application's tests with emitDecoratorMetadata enabled

await expectToFail(() => ng('test', '--no-watch'));

}