import { FormControl } from '@angular/forms';
import { phoneValidator } from './phone-validator';

describe('Phone validator', () => {
  let control: FormControl;
  const hint: string = 'e.g., 555/555-5555, (555) 555-5555';

  beforeEach(() => {
    control = new FormControl();
    control.setValidators(phoneValidator);
  });

  it('should not validate when control value is empty', () => {
    control.updateValueAndValidity();
    expect(control.hasError('invalidFormat')).toBe(false);
  });

  it('should return undefined on phone number of format xxxxxxxxxx', () => {
    control.setValue('5555555555');
    control.updateValueAndValidity();
    expect(control.hasError('invalidFormat')).toBe(false);
  });

  it('should return undefined on phone number of format xxx-xxx-xxxx', () => {
    control.setValue('555-555-5555');
    control.updateValueAndValidity();
    expect(control.hasError('invalidFormat')).toBe(false);
  });

  it('should return undefined on phone number of format (xxx) xxx-xxxx', () => {
    control.setValue('(555) 555-5555');
    control.updateValueAndValidity();
    expect(control.hasError('invalidFormat')).toBe(false);
  });

  it('should return undefined on phone number of format (xxx)-xxx-xxxx', () => {
    control.setValue('(555)-555-5555');
    control.updateValueAndValidity();
    expect(control.hasError('invalidFormat')).toBe(false);
  });

  it('should return undefined on phone number of format xxx xxx xxxx', () => {
    control.setValue('555 555 5555');
    control.updateValueAndValidity();
    expect(control.hasError('invalidFormat')).toBe(false);
  });

  it('should return undefined on phone number of format xxx/xxx-xxxx', () => {
    control.setValue('555/555-5555');
    control.updateValueAndValidity();
    expect(control.hasError('invalidFormat')).toBe(false);
  });

  it('should return a validation error on other values', () => {
    const values: string[] = [
      ' ',
      '1',
      'xxxxxxxxxx',
      'xxx-xxx-xxxx',
      '(xxx) xxx-xxxx',
      '(xxx)-xxx-xxxx',
      'xxx xxx xxxx',
    ];
    for (let value of values) {
      control.setValue(value);
      control.updateValueAndValidity();
      expect(control.hasError('invalidFormat')).toBe(true);
      expect(control.errors.invalidFormat).toEqual({hint});
    }
  });
});