jest-preset-angular: TypeError: (options.astTransformers || []).map is not a function angular 10

🐛 Bug Report

I have a unit test running using the

“jest”: “^26.4.2”, “jest-preset-angular”: “^8.3.1”, When I run the command npm run test:app it was working fine in Angular 8, now I have updated the angular to the latest version 10. I am getting an error as below on every test component

To Reproduce

Error log:

# content of error stacktrace :
TypeError: (options.astTransformers || []).map is not a function

  at ConfigSet.get (node_modules/ts-jest/dist/config/config-set.js:225:64)
  at ConfigSet.tsJest (node_modules/ts-jest/dist/util/memoize.js:43:24)
  at ConfigSet.get (node_modules/ts-jest/dist/config/config-set.js:297:41)
  at ConfigSet.versions (node_modules/ts-jest/dist/util/memoize.js:43:24)
  at ConfigSet.get (node_modules/ts-jest/dist/config/config-set.js:588:32)
  at ConfigSet.jsonValue (node_modules/ts-jest/dist/util/memoize.js:43:24)
  at ConfigSet.get [as cacheKey] (node_modules/ts-jest/dist/config/config-set.js:603:25)
  at TsJestTransformer.getCacheKey (node_modules/ts-jest/dist/ts-jest-transformer.js:126:36)

envinfo

System:
    OS: Mac os Catalina

Npm packages:
    "jest": "^26.4.2",
    "jest-preset-angular": "^8.3.1",
    "typescript": "~4.0.2"

describe(‘DateSelectionComponent’, () => { let component: DateSelectionComponent; let fixture: ComponentFixture<DateSelectionComponent>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [DateSelectionComponent, SafePipe],
      imports: [
        SharedModule,
        NgReduxTestingModule,
        RouterTestingModule.withRoutes([])
      ],
      providers: [
        {
          provide: PageAPIActions, useValue: { setPageState() { } }
        }
      ]
    })
      .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(DateSelectionComponent);
    component = fixture.componentInstance;
    Object.defineProperties(component, {
      page$: {
        value: of('value'),
        writable: true
      },
      page: {
        value: { destination: 'value' },
        writable: true
      },
      startDate: {
        value: new NgbDate(2019, 2, 27),
        writable: true
      },
      minDate: {
        value: new NgbDate(2019, 2, 27),
        writable: true
      }
    });
    fixture.detectChanges();
  });

  it('should create', () => {
    expect(component).toBeTruthy();
  });

  it('Should Match Snapshot', async () => {
    (expect(fixture) as any).toMatchSnapshot();
  });
});

Jest.app config

const baseConfig = require('./jest.base.config');

module.exports = {
    ...baseConfig,
    roots: ['<rootDir>/src'],
    modulePaths: ['<rootDir>/dist'],
    modulePathIgnorePatterns: ['<rootDir>/src/app/shared'],
    moduleNameMapper: {
        "^@pts-ngx/core": "<rootDir>/dist/pts-ngx/core",
        "^@pts-ngx/core/(.*)$": "<rootDir>/dist/pts-ngx/core/$1",
        'projects/pts-ngx/core/(.*)$': '<rootDir>/projects/pts-ngx/core/$1'
    }
};

Jest base config

module.exports = {
    preset: 'jest-preset-angular',
    setupFilesAfterEnv: ['<rootDir>/setupJest.ts'],
    moduleNameMapper: {
        "^@pts-ngx/core": "<rootDir>/dist/pts-ngx/core",
        "^@pts-ngx/core/(.*)$": "<rootDir>/dist/pts-ngx/core/$1"
    }
};

Jest.library config

// jest.lib.config.js
const baseConfig = require('./jest.base.config');

module.exports = {
    ...baseConfig,
    roots: ['<rootDir>/projects'],
};