@hexadrop/value-object/src/string.value-object.test.ts

Hexagonal architecture utils library

import { describe, expect, test } from 'bun:test';

import {
	EmptyStringValueError,
	InvalidStringValueError,
	InvalidStringValueTypeError,
} from './string.value-object.error';
import StringValueObjectMother from './string.value-object.mother';

describe('StringValueObject', () => {
	describe('constructor()', () => {
		test('should instantiate', () => {
			const value = 'as';
			const vo = StringValueObjectMother.create(value);
			const less = StringValueObjectMother.random();

			expect(vo).toBeDefined();
			expect(vo.value).toBe('as');
			expect(vo.toString()).toBe('as');
			expect(vo.isEqualsTo(less)).toBeFalsy();
		});
		test('should throw an error if arg is undefined', () => {
			const invalid = () => StringValueObjectMother.invalidWithUndefined();
			expect(invalid).toThrow(new EmptyStringValueError());
		});
		test('should throw an error if arg has an invalid type', () => {
			const invalid = () => StringValueObjectMother.invalidWithNumber();
			expect(invalid).toThrow(new InvalidStringValueTypeError());
		});
		test('should throw an error if arg is invalid value', () => {
			const invalid = () => StringValueObjectMother.invalidValue();
			expect(invalid).toThrow(new InvalidStringValueError('melon'));
		});
	});
});