Allow different error codes on different Node versions

lib/mkdirs/__tests__/issue-93.test.js

@@ -4,6 +4,7 @@ const os = require('os')
 const fse = require(process.cwd())
 const path = require('path')
 const assert = require('assert')
+const util = require('util')
 
 /* global before, describe, it */
 
@@ -23,13 +24,19 @@ describe('mkdirp: issue-93, win32, when drive does not exist, it should return a
 
   it('should return a cleaner error than inifinite loop, stack crash', done => {
     const file = 'R:\\afasd\\afaff\\fdfd' // hopefully drive 'r' does not exist on appveyor
+    // Different error codes on different Node versions (matches native mkdir behavior)
+    const assertErr = (err) => assert(
+      ['EPERM', 'ENOENT'].includes(err.code),
+      `expected 'EPERM' or 'ENOENT', got ${util.inspect(err.code)}`
+    )
+
     fse.mkdirp(file, err => {
-      assert.strictEqual(err.code, 'EPERM')
+      assertErr(err)
 
       try {
         fse.mkdirsSync(file)
       } catch (err) {
-        assert.strictEqual(err.code, 'EPERM')
+        assertErr(err)
       }
 
       done()