Config test fails if home dir has .eslintrc file

[gyandeeps]

While i was working on master this config unit test fails if you have a .eslintrc file inside your home directory. I think this test was introduced with #6538.

To reproduce just create a .eslintrc file inside your HOME directory and then run the tests.

{
    "env" : {
        "es6" : true
    }
}

output:

 11186 passing (48s)
  1 failing

  1) Config getConfig() should throw an error when an invalid path is given:
     AssertionError: expected [Function] to throw an error
      at Function.assert.throws (C:\Users\gs025879\Documents\webstrom\eslint\node_modules\chai\lib\chai\interface\assert.js:1120:52)
      at Context.<anonymous> (C:\Users\gs025879\Documents\webstrom\eslint\tests\lib\config.js:271:20)
      at callFn (C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runnable.js:326:21)
      at Test.Runnable.run (C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runnable.js:319:7)
      at Runner.runTest (C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runner.js:422:10)
      at C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runner.js:528:12
      at next (C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runner.js:342:14)
      at C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runner.js:352:7
      at next (C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runner.js:284:14)
      at Immediate._onImmediate (C:\Users\gs025879\Documents\webstrom\eslint\node_modules\mocha\lib\runner.js:320:5)

Note: This issue is similar to what was happening here #6206

[platinumazure]

Ack, probably needs a mock filesystem setup in that test. Sorry about this.

I'm happy to look at this but I will probably need some guidance.

[gyandeeps]

no worries @platinumazure . Let me know if you need more help since i did the work on mock before.

[platinumazure]

I'll work on this tonight (i.e., soon) and have either a PR or an update here soon.

[platinumazure]

@gyandeeps Any chance you could try my branch (see PR #6566) and see if that test passes for you? Thanks!