Testing ReactiveFormModule in Angular18

So I'm working on a lib, on its unit tests currently with this weird error :

TypeError: Cannot read properties of null (reading 'firstCreatePass')
​

So i invastigated, didn't find anything this useful. I made a test component "input-test" to isolate the error:

input-test.component.html

<input type="text" [formControl]="control">

input-test.component.ts

import { Component } from '@angular/core';
import { FormControl, ReactiveFormsModule } from '@angular/forms';

@Component({
selector: 'app-input-test',
standalone: true,
imports: [ReactiveFormsModule],
templateUrl: './input-test.component.html',
styleUrl: './input-test.component.css'
})
export class InputTestComponent {

control: FormControl = new FormControl();
}


input-test.component.spec.ts

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

import { InputTestComponent } from './input-test.component';

describe('InputTestComponent', () => {
let component: InputTestComponent;
let fixture: ComponentFixture<InputTestComponent>;

beforeEach(async () => {
await TestBed.configureTestingModule({
// tested both with and without ReactiveFormModules, didn't change anything
imports: [InputTestComponent, ReactiveFormsModule]
})
.compileComponents();

fixture = TestBed.createComponent(InputTestComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});

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


The error I mentionned at first appears when running npm run test I managed to get rid of it by removing the ReactiveFormsModule, but if i do so i can't bind to FormControl anymore, and I need it.

Moreover, i found that if I change the template to this :

input-test.component.html

<form>
<input type="text" [formControl]="control">
</form>


Then the error becomes

NG0203: inject() must be called from an injection context such as a constructor, a factory function, a field initializer, or a function used with runInInjectionContext. Find more at https://angular.dev/errors/NG0203
​

I'm pretty stuck right now if anyone has an idea it'll really help.

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