/**
* Copyright Super iPaaS Integration LLC, an IBM Company 2024
*/
import { cropPrefix} from './string-helper.js';

describe('String helper test suite', () => {
	describe('cropPrefix function:', () => {
		it('should return input if input is null or undefined', () => {
			expect(cropPrefix(null as unknown as string, 'prefix')).toBe(null);
			expect(cropPrefix(undefined as unknown as string, 'prefix')).toBe(undefined);
		});

		it('should return input if prefix is null or undefined', () => {
			expect(cropPrefix('someString', null as unknown as string)).toBe('someString');
			expect(cropPrefix('someString', undefined as unknown as string)).toBe('someString');
		});

		it('should remove the prefix if it is present at the start of the input', () => {
			expect(cropPrefix('prefixSomething', 'prefix')).toBe('Something');
			expect(cropPrefix('prefixSomething', 'pre')).toBe('fixSomething');
		});

		it('should return the input unchanged if the prefix does not match', () => {
			expect(cropPrefix('someString', 'prefix')).toBe('someString');
			expect(cropPrefix('prefixSomething', 'nonexistent')).toBe('prefixSomething');
		});
	});

});