var hat = require('../');
var assert = require('assert');

exports.rack = function () {
    var rack = hat.rack(4);
    var seen = {};
    for (var i = 0; i < 8; i++) {
        var id = rack();
        assert.ok(!seen[id], 'seen this id');
        seen[id] = true;
        
        assert.ok(id.match(/^[0-9a-f]$/));
    }
    
    assert.throws(function () {
        for (var i = 0; i < 10; i++) rack()
    });
};

exports.data = function () {
    var rack = hat.rack(64);
    var a = rack('a!');
    var b = rack("it's a b!")
    var c = rack([ 'c', 'c', 'c' ]);
    
    assert.equal(rack.get(a), 'a!');
    assert.equal(rack.get(b), "it's a b!");
    assert.deepEqual(rack.get(c), [ 'c', 'c', 'c' ]);
    
    assert.equal(rack.hats[a], 'a!');
    assert.equal(rack.hats[b], "it's a b!");
    assert.deepEqual(rack.hats[c], [ 'c', 'c', 'c' ]);
    
    rack.set(a, 'AAA');
    assert.equal(rack.get(a), 'AAA');
};

exports.expandBy = function () {
    var rack = hat.rack(4, 16, 4);
    var seen = {};
    
    for (var i = 0; i < 8; i++) {
        var id = rack();
        assert.ok(!seen[id], 'seen this id');
        seen[id] = true;
        assert.ok(id.match(/^[0-9a-f]$/));
    }
    
    for (var i = 0; i < 8; i++) {
        var id = rack();
        assert.ok(!seen[id], 'seen this id');
        seen[id] = true;
        assert.ok(id.match(/^[0-9a-f]{1,2}$/));
    }
    
    for (var i = 0; i < 8; i++) {
        var id = rack();
        assert.ok(!seen[id], 'seen this id');
        seen[id] = true;
        assert.ok(id.match(/^[0-9a-f]{2}$/));
    }
};