text: var assert = require('assert');
  var combo = require('../');
  
  
  suite('combinations', function() {
  
    test('1 item array', function() {
  
      var out = combo(['a']);
  
      assert.deepEqual(out, [['a']]);
  
    })
  
    test('2 item array', function() {
  
      var out = combo(['a', 'b']);
  
      assert.deepEqual(out, [['a'], ['b'], ['a', 'b']]);
  
    })
  
    test('3 item array', function() {
      var out = combo(['a', 'b', 'c']);
  
      assert.deepEqual(out, [ [ 'a' ], [ 'b' ], [ 'c' ], [ 'a', 'b' ], [ 'a', 'c' ], [ 'b', 'c' ], [ 'a', 'b', 'c' ] ]);
    });
  });
  
  