test/parallel/test-path-relative.js

'use strict';
require('../common');
const assert = require('assert');
const path = require('path');

const failures = [];

const relativeTests = [
  [ path.win32.relative,
    // Arguments                     result
    [['c:/blah\\blah', 'd:/games', 'd:\\games'],
     ['c:/aaaa/bbbb', 'c:/aaaa', '..'],
     ['c:/aaaa/bbbb', 'c:/cccc', '..\\..\\cccc'],
     ['c:/aaaa/bbbb', 'c:/aaaa/bbbb', ''],
     ['c:/aaaa/bbbb', 'c:/aaaa/cccc', '..\\cccc'],
     ['c:/aaaa/', 'c:/aaaa/cccc', 'cccc'],
     ['c:/', 'c:\\aaaa\\bbbb', 'aaaa\\bbbb'],
     ['c:/aaaa/bbbb', 'd:\\', 'd:\\'],
     ['c:/AaAa/bbbb', 'c:/aaaa/bbbb', ''],
     ['c:/aaaaa/', 'c:/aaaa/cccc', '..\\aaaa\\cccc'],
     ['C:\\foo\\bar\\baz\\quux', 'C:\\', '..\\..\\..\\..'],
     ['C:\\foo\\test', 'C:\\foo\\test\\bar\\package.json', 'bar\\package.json'],
     ['C:\\foo\\bar\\baz-quux', 'C:\\foo\\bar\\baz', '..\\baz'],
     ['C:\\foo\\bar\\baz', 'C:\\foo\\bar\\baz-quux', '..\\baz-quux'],
     ['\\\\foo\\bar', '\\\\foo\\bar\\baz', 'baz'],
     ['\\\\foo\\bar\\baz', '\\\\foo\\bar', '..'],
     ['\\\\foo\\bar\\baz-quux', '\\\\foo\\bar\\baz', '..\\baz'],
     ['\\\\foo\\bar\\baz', '\\\\foo\\bar\\baz-quux', '..\\baz-quux'],
     ['C:\\baz-quux', 'C:\\baz', '..\\baz'],
     ['C:\\baz', 'C:\\baz-quux', '..\\baz-quux'],
     ['\\\\foo\\baz-quux', '\\\\foo\\baz', '..\\baz'],
     ['\\\\foo\\baz', '\\\\foo\\baz-quux', '..\\baz-quux'],
     ['C:\\baz', '\\\\foo\\bar\\baz', '\\\\foo\\bar\\baz'],
     ['\\\\foo\\bar\\baz', 'C:\\baz', 'C:\\baz'],
     ['c:\\a\\İ', 'c:\\a\\İ\\test.txt', 'test.txt'],
     ['c:\\İ\\a\\İ', 'c:\\İ\\b\\İ\\test.txt', '..\\..\\b\\İ\\test.txt'],
     ['c:\\İ\\a\\i̇', 'c:\\İ\\b\\İ\\test.txt', '..\\..\\b\\İ\\test.txt'],
     ['c:\\i̇\\a\\İ', 'c:\\İ\\b\\İ\\test.txt', '..\\..\\b\\İ\\test.txt'],
     ['c:\\ß\\a\\ß', 'c:\\ß\\b\\ß\\test.txt', '..\\..\\b\\ß\\test.txt'],
    ],
  ],
  [ path.posix.relative,
    // Arguments          result
    [['/var/lib', '/var', '..'],
     ['/var/lib', '/bin', '../../bin'],
     ['/var/lib', '/var/lib', ''],
     ['/var/lib', '/var/apache', '../apache'],
     ['/var/', '/var/lib', 'lib'],
     ['/', '/var/lib', 'var/lib'],
     ['/foo/test', '/foo/test/bar/package.json', 'bar/package.json'],
     ['/Users/a/web/b/test/mails', '/Users/a/web/b', '../..'],
     ['/foo/bar/baz-quux', '/foo/bar/baz', '../baz'],
     ['/foo/bar/baz', '/foo/bar/baz-quux', '../baz-quux'],
     ['/baz-quux', '/baz', '../baz'],
     ['/baz', '/baz-quux', '../baz-quux'],
     ['/page1/page2/foo', '/', '../../..'],
    ],
  ],
];
relativeTests.forEach((test) => {
  const relative = test[0];
  test[1].forEach((test) => {
    const actual = relative(test[0], test[1]);
    const expected = test[2];
    if (actual !== expected) {
      const os = relative === path.win32.relative ? 'win32' : 'posix';
      const message = `path.${os}.relative(${
        test.slice(0, 2).map(JSON.stringify).join(',')})\n  expect=${
        JSON.stringify(expected)}\n  actual=${JSON.stringify(actual)}`;
      failures.push(`\n${message}`);
    }
  });
});
assert.strictEqual(failures.length, 0, failures.join(''));