1
 2var Backoff = require('..');
 3var assert = require('assert');
 4
 5describe('.duration()', function(){
 6  it('should increase the backoff', function(){
 7    var b = new Backoff;
 8
 9    assert(100 == b.duration());
10    assert(200 == b.duration());
11    assert(400 == b.duration());
12    assert(800 == b.duration());
13
14    b.reset();
15    assert(100 == b.duration());
16    assert(200 == b.duration());
17  })
18})