Behavior on Windows seems to have changed with v4.0.6. about micromatch HOT 1 OPEN

import assert from 'node:assert';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

import mm from 'micromatch';

const __filename = fileURLToPath(import.meta.url);

const glob = '**/' + __filename.split(path.sep).slice(-2).join('/');
const filePosix = __filename.replaceAll(path.sep, '/');
const fileWin = __filename.replaceAll(path.sep, '\\');

const posixTest = {
    isMatch: mm.isMatch(filePosix, glob),
    regExpTest: mm.makeRe(glob).test(filePosix),
};

const winTest = {
    isMatch: mm.isMatch(fileWin, glob),
    regExpTest: mm.makeRe(glob).test(fileWin),
};

console.log('%o', {
    glob,
    filePosix,
    fileWin,
    posixTest,
    winTest,
});

assert(posixTest.isMatch === posixTest.regExpTest);
assert(winTest.isMatch === winTest.regExpTest);

{
  glob: '**/test/mtest.mjs',
  filePosix: 'C:/Users/jdent/test/mtest.mjs',
  fileWin: 'C:\\Users\\jdent\\test\\mtest.mjs',
  posixTest: { isMatch: true, regExpTest: true },
  winTest: { isMatch: false, regExpTest: true }
}