angular jest test fails when using js object from shared library

I have an angular 18 app in a NX workspace and I am trying to run a test in isolation. But I am getting an error:

FAIL shared-ui libs/web/shared/ui/src/lib/shared-ui/form-controls/exercise-selector-input/data-access/exercise-input.service.spec.ts
● Test suite failed to run
ReferenceError: fetch is not defined
.....
at Object.<anonymous> (src/lib/shared-ui/form-controls/exercise-selector-input/data-access/exercise-input.service.spec.ts:4:1)
Test Suites: 1 failed, 1 total
Tests: 0 total


The line referenced is the import line FormatOptionData

I am using the following command to run jus the single file in question:

nx run shared-ui:test --testFile=exercise-input.service.spec.ts


Here is my test file simplified:

import { TestBed } from '@angular/core/testing';

import { ExerciseInputService } from './exercise-input.service';
import { Format, FormatOptionData } from '@t3a/shared-data-access';

describe('ExerciseRecordService', () => {
let service: ExerciseInputService;
const format: Format[] = FormatOptionData;

beforeEach(() => {
TestBed.configureTestingModule({});
service = TestBed.inject(ExerciseInputService);
});

// tests go here

});


I know the error occurs on the FormatDataOptions assignemnt because if that is the ONLY thing I remove then there is no error.

FormatDataOptions is a js object that is imported from another shared lib inside the NX workspace. It looks like this:

export const FormatOptionData: Format[] = [
{
dataType: DataTypeListEnum.Enum.format,
name: "Sets x Reps",
code: "NSETS_XREPS",
description: "A number of sets of reps",
useValue: true,
valueType: FormatValueTypeEnum.enum.set_reps,
valueLabel: "Sets",
prefixValue: false,
public: true,
},
{
dataType: DataTypeListEnum.Enum.format,
name: "Rep Max",
code: "NRM",
description: "Maximum weight for a specific number of reps",
useValue: true,
valueType: FormatValueTypeEnum.enum.number,
valueLabel: "Reps",
prefixValue: true,
public: true,
},
]


I don't want to mock this because I need to do this with multiple objects like the one above and I don't want to maintain the data in two places

Can someone help me import this JavaScript object into my angular test

thanks

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