import { describe, it, expect } from 'vitest';
import { ComponentFixture, TestBed } from '@angular/core/testing';
import { Spinner } from '@app/shared/ui/spinner/spinner';

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

  beforeEach(async () => {
    await TestBed.configureTestingModule({
      imports: [Spinner],
    }).compileComponents();

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

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

  it('should render a span with spinner class', () => {
    const span = fixture.nativeElement.querySelector('.spinner');

    expect(span).toBeTruthy();
  });

  it('should have role status for accessibility', () => {
    const span = fixture.nativeElement.querySelector('.spinner');

    expect(span.getAttribute('role')).toBe('status');
  });

  it('should have aria-label for accessibility', () => {
    const span = fixture.nativeElement.querySelector('.spinner');

    expect(span.getAttribute('aria-label')).toBe('Loading');
  });

  it('should apply md class by default', () => {
    const span = fixture.nativeElement.querySelector('.spinner');

    expect(span.classList.contains('spinner--md')).toBe(true);
  });

  it('should apply sm class when size is sm', () => {
    fixture.componentRef.setInput('size', 'sm');
    fixture.detectChanges();

    const span = fixture.nativeElement.querySelector('.spinner');

    expect(span.classList.contains('spinner--sm')).toBe(true);
    expect(span.classList.contains('spinner--md')).toBe(false);
  });

  it('should apply lg class when size is lg', () => {
    fixture.componentRef.setInput('size', 'lg');
    fixture.detectChanges();

    const span = fixture.nativeElement.querySelector('.spinner');

    expect(span.classList.contains('spinner--lg')).toBe(true);
  });
});