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Contents
import ISBN from './isbn-verifier.js';
describe('ISBN Verifier Test Suite', () => {
test('valid isbn number', () => {
const isbn = new ISBN('3-598-21508-8');
expect(isbn.isValid()).toEqual(true);
});
test('invalid isbn check digit', () => {
const isbn = new ISBN('3-598-21508-9');
expect(isbn.isValid()).toEqual(false);
});
xtest('valid isbn number with a check digit of 10', () => {
const isbn = new ISBN('3-598-21507-X');
expect(isbn.isValid()).toEqual(true);
});
xtest('check digit is a character other than X', () => {
const isbn = new ISBN('3-598-21507-A');
expect(isbn.isValid()).toEqual(false);
});
xtest('invalid character in isbn', () => {
const isbn = new ISBN('3-598-2K507-0');
expect(isbn.isValid()).toEqual(false);
});
xtest('X is only valid as a check digit', () => {
const isbn = new ISBN('3-598-2X507-0');
expect(isbn.isValid()).toEqual(false);
});
xtest('valid isbn without separating dashes', () => {
const isbn = new ISBN('3598215088');
expect(isbn.isValid()).toEqual(true);
});
xtest('isbn without separating dashes and X as check digit', () => {
const isbn = new ISBN('359821507X');
expect(isbn.isValid()).toEqual(true);
});
xtest('isbn without check digit and dashes', () => {
const isbn = new ISBN('359821507');
expect(isbn.isValid()).toEqual(false);
});
xtest('too long isbn and no dashes', () => {
const isbn = new ISBN('3598215078X');
expect(isbn.isValid()).toEqual(false);
});
xtest('isbn without check digit', () => {
const isbn = new ISBN('3-598-21507');
expect(isbn.isValid()).toEqual(false);
});
xtest('too long isbn', () => {
const isbn = new ISBN('3-598-21507-XA');
expect(isbn.isValid()).toEqual(false);
});
xtest('check digit of X should not be used for 0', () => {
const isbn = new ISBN('3-598-21515-X');
expect(isbn.isValid()).toEqual(false);
});
});
Version data entries
124 entries across 124 versions & 1 rubygems