import { validateSync } from 'class-validator';
import { IsEnabledPaymentMethods } from './isEnabledPaymentMethods';

class TestDto {
    @IsEnabledPaymentMethods()
    PAYMENT_METHODS_ENABLED: string;
}

const validateMethods = (value: string) => {
    const dto = Object.assign(new TestDto(), { PAYMENT_METHODS_ENABLED: value });

    return validateSync(dto);
};

describe('IsEnabledPaymentMethods', () => {
    it('accepts xmr only', () => {
        expect(validateMethods('xmr')).toHaveLength(0);
    });

    it('accepts xmr and btc', () => {
        expect(validateMethods('xmr,btc')).toHaveLength(0);
    });

    it('rejects empty string', () => {
        expect(validateMethods('').length).toBeGreaterThan(0);
    });

    it('rejects unsupported methods', () => {
        expect(validateMethods('eth').length).toBeGreaterThan(0);
    });

    it('rejects duplicate methods', () => {
        expect(validateMethods('xmr,xmr').length).toBeGreaterThan(0);
    });
});