resolves to equal uri typescript vscode.ts

file.ts

/**
 * Returns true iff url == uri-resolve(url, candidate) per
 * https://tools.ietf.org/html/rfc3986#section-5.2.2. For example, if currentURL is
 * http://example.com/foo and newURL is /foo, then it returns true.
 */
export function resolvesToEqual(url: URI | string, candidate: URI | string): boolean {
	if (typeof url === 'string') { url = URI.parse(url); }
	if (typeof candidate === 'string') { candidate = URI.parse(candidate); }

	const change: {
		scheme?: string;
		authority?: string;
		path?: string;
		query?: string;
		fragment?: string;
	} = {};
	if (candidate.scheme) { change.scheme = candidate.scheme; }
	if (candidate.scheme || candidate.authority) { change.authority = candidate.authority; }
	if (candidate.scheme || candidate.authority || candidate.path) {
		if (candidate.path[0] === '/') {
			change.path = candidate.path;
		} else {
			change.path = paths.join(url.path, candidate.path);
		}
	}
	if (candidate.scheme || candidate.authority || candidate.path || candidate.query) {
		change.query = candidate.query;
	}
	if (candidate.scheme || candidate.authority || candidate.path || candidate.query || candidate.fragment) {
		change.fragment = candidate.fragment;
	}
	candidate = url.with(change);

	return url.toString() === candidate.toString();
}


'use strict';

import assert = require('assert');
import { resolvesToEqual } from 'vs/platform/urlRoute/common/urlRoute';

suite('URL Route Service', () => {
	suite('resolvesToEqual', () => {
		test('true', () => {
			[
				['http://example.com/a?b#c', 'http://example.com/a?b#c'],
				['http://example.com/a?b#c', ''],
				['http://example.com/a?b#c', '/a?b#c'],
				['http://example.com/a?b#c', '?b#c'],
				['http://example.com/a?b#c', '#c'],
				['http://example.com/a?b#c', '../a?b#c'],
			].forEach(([url, candidate]) => {
				assert.ok(resolvesToEqual(url, candidate), `expected to resolve to equal: ${url} and ${candidate}`);
			});
		});
		test('false', () => {
			[
				['http://example.com/a?b#c', 'http://example.com/x?b#c'],
				['http://example.com/a?b#c', 'http://example.com/a?x#c'],
				['http://example.com/a?b#c', 'http://example.com/a?b#x'],
				['http://example.com/a?b#c', 'http://example.com/x?y#c'],
				['http://example.com/a?b#c', 'http://example.com/x?b#y'],
				['http://example.com/a?b#c', 'http://example.com/x?y#z'],
				['http://example.com/a?b#c', 'http://example.com/a?b'],
				['http://example.com/a?b#c', 'http://example.com/a#c'],
				['http://example.com/a?b#c', 'http://example.com/a'],
				['http://example.com/a?b#c', '/a'],
				['http://example.com/a?b#c', '/x'],
				['http://example.com/a?b#c', '?y'],
				['http://example.com/a?b#c', '#z'],
				['http://example.com/a?b#c', '?y#z'],
				['http://example.com/a?b#c', '/x?y'],
				['http://example.com/a?b#c', '/x#z'],
				['http://example.com/a?b#c', '/x?y#z'],
				['http://example.com/a?b#c', '../'],
				['http://example.com/a?b#c', 'http://example.com'],
			].forEach(([url, candidate]) => {
				assert.equal(resolvesToEqual(url, candidate), false, `expected to resolve to not equal: ${url} and ${candidate}`);
			});
		});
	});
});