setHostInput does not behave as setInput

[allysprik]

Is this a regression?

No

Description

When changing the input of a component, setInput correctly handles the assignment of a value to an input signal, but setHostInput assigns the original value directly to the property. I've provided a minimal test file comparing the behaviour of the two functions.

import { Component, input, Pipe, PipeTransform, signal } from '@angular/core';
import {
  createComponentFactory,
  Spectator,
  SpectatorPipe,
} from '@ngneat/spectator';
import { createPipeFactory } from '@ngneat/spectator/jest';

@Component({
  template: `
    {{ value() | TestPipe }}
  `,
  standalone: false,
})
class CustomTestComponent {
  public value = input<unknown>('');
}

@Pipe({
  name: 'TestPipe',
  standalone: true,
})
export class TestPipe implements PipeTransform {
  public transform<T>(value: T): T {
    return value;
  }
}

describe('setHostInput', () => {
  let spectator: SpectatorPipe<TestPipe, CustomTestComponent>;
  const createPipe = createPipeFactory({
    pipe: TestPipe,
    host: CustomTestComponent,
  });

  beforeEach(() => {
    spectator = createPipe();
  });

  it('does not change the value of the signal, but instead the property with setHostInput', () => {
    const testString = '1234';
    let error;

    try {
      spectator.setHostInput({ value: testString });
    } catch (err) {
      error = err;
    }
    expect(error).toMatchObject(new TypeError('ctx.value is not a function'));

    error = undefined;

    try {
      spectator.setHostInput({ value: signal(testString) });
      expect(spectator.element).toHaveExactTrimmedText(testString);
    } catch (err) {
      error = err;
    }
    expect(error).toBeUndefined();
  });
});

@Component({
  template: `
    {{ value() }}
  `,
  standalone: false,
})
class CustomTest2Component {
  public value = input<unknown>('');
}

describe('setInput', () => {
  let spectator: Spectator<CustomTest2Component>;

  const createComponent = createComponentFactory({
    component: CustomTest2Component,
  });

  it('does change the value of the signal with setInput', () => {
    spectator = createComponent();
    const testString = '1234';

    expect(spectator.component.value()).toBe('');
    let error;

    try {
      spectator.setInput({ value: testString });
      expect(spectator.element).toHaveExactTrimmedText(testString);
    } catch (err) {
      error = err;
    }
    expect(error).toBeUndefined();
  });
});

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

When assigning the value without wrapping it as a signal in setHostInput:

`TypeError: ctx.value is not a function`

Please provide the environment you discovered this bug in

@angular/core: npm:20.0.6
@ngneat/spectator: npm:20.0.0

Anything else?

No response

Do you want to create a pull request?

No