import {
    cvvValidation,
} from './cvv.validation';

describe('cvvValidation', () => {
    const runCvvValidTest = ({
        cvvNumber,
        expectedToBeValid,
    }: {
        cvvNumber: string,
        expectedToBeValid: boolean,
    }) => {
        test(`Expect ${cvvNumber} to be ${
            expectedToBeValid ? 'valid' : 'invalid'
        }`, () => {
            const result = cvvValidation(cvvNumber);
            if (expectedToBeValid) {
                expect(result).toBeNull();
            } else {
                expect(result.cvvValidation).toBe(true);
            }
        });
    };

    const invalidCvvNumbers = [
        'abc',
        '12',
        '12356',
        '12a',
    ];
    invalidCvvNumbers
        .forEach((cvvNumber) => runCvvValidTest({
            cvvNumber,
            expectedToBeValid: false,
        }));

    const validCvvNumbers = [
        '1234',
        '123',
        null,
    ];
    validCvvNumbers
        .forEach((cvvNumber) => runCvvValidTest({
            cvvNumber,
            expectedToBeValid: true,
        }));
});