Hi guys!

I propose 1 more test to infeer if input parameters were changed (this way we get a more direct exposed information):

describe("Solution", function(){
let moves = ['up', 'left', 'right', 'left', 'left'];
let position = [0,0]
it("shouldn't change the input parameters", function(){
streetFighterSelection(fighters, position, moves);
assert.deepEqual(fighters, [["Ryu", "E.Honda", "Blanka", "Guile", "Balrog", "Vega"],
["Ken", "Chun Li", "Zangief", "Dhalsim", "Sagat", "M.Bison"]]);
assert.deepEqual(position, [0,0]);
assert.deepEqual(moves, ['up', 'left', 'right', 'left', 'left']);
});
});

[Sorry, don't now how to preserve code formatation]

Hi,

I've replied afterwards explaning I've mutated 1 of the input parameters, after all.
(This reply disapeared!)
and marked the issue as resolved.

I'm new here and just trying to help. ()
I now understand that marking something as buggy is offensive! Sorry! Won't bother you again mmalkavian.

You really should read this: https://en.wikipedia.org/wiki/Ad_hominem

Random test is the only test failing but results are equal to mine!
I haven't mutated the parameters (as RahulTeammate points out).

eg:
✘ expected [ Array(6) ] to deeply equal [ Array(6) ]