text: var vows = require('vows'),
      assert = require('assert'),
      pretty = require('../index');
  
  var tests = {
      'loading': {
          topic: function() {
              return pretty;
          },
          'should export a function': function(topic) {
              assert.isFunction(topic);
          }
      },
      'bytes': {
          topic: function() {
              return pretty(12);
          },
          'should print bytes': function(topic) {
              assert.equal(topic, '12 Bytes');
          }
      },
      'bytes with no space': {
          topic: function() {
              return pretty(12, true);
          },
          'should print bytes': function(topic) {
              assert.equal(topic, '12Bytes');
          }
      },
      'bytes with no space and one char': {
          topic: function() {
              return pretty(12, true, true);
          },
          'should print bytes': function(topic) {
              assert.equal(topic, '12B');
          }
      },
      'bytes with space and one char': {
          topic: function() {
              return pretty(12, false, true);
          },
          'should print bytes': function(topic) {
              assert.equal(topic, '12 B');
          }
      },
      'kilobytes': {
          topic: function() {
              return pretty(123456);
          },
          'should print kilobytes': function(topic) {
              assert.equal(topic, '120.6 Kb');
          },
          'exact': {
              topic: function() {
                  return pretty(1024);
              },
              'should be exactly 1 Kb': function(topic) {
                  assert.equal(topic, '1 Kb');
              }
          }
      },
      'megs': {
          topic: function() {
              return pretty(123456789);
          },
          'should print megabytes': function(topic) {
              assert.equal(topic, '117.7 MB');
          },
          'exact': {
              topic: function() {
                  return pretty(1024 * 1024);
              },
              'should be exactly 1 MB': function(topic) {
                  assert.equal(topic, '1 MB');
              }
          }
      },
      'gigs': {
          topic: function() {
              return pretty(12345678901);
          },
          'should print gigabytes': function(topic) {
              assert.equal(topic, '11.5 GB');
          },
          'exact': {
              topic: function() {
                  return pretty(1024 * 1024 * 1024);
              },
              'should be exactly 1 GB': function(topic) {
                  assert.equal(topic, '1 GB');
              }
          }
      },
      'teras': {
          topic: function() {
              return pretty(1234567890123);
          },
          'should print terabytes': function(topic) {
              assert.equal(topic, '1.1 TB');
          },
          'exact': {
              topic: function() {
                  return pretty(1024 * 1024 * 1024 * 1024);
              },
              'should be exactly 1 TB': function(topic) {
                  assert.equal(topic, '1 TB');
              }
          }
      },
      'petas': {
          topic: function() {
              return pretty(1234567890123456);
          },
          'should print petaabytes': function(topic) {
              assert.equal(topic, '1.1 PB');
          },
          'exact': {
              topic: function() {
                  return pretty(1024 * 1024 * 1024 * 1024 * 1024);
              },
              'should be exactly 1 PB': function(topic) {
                  assert.equal(topic, '1 PB');
              }
          }
      },
      'exabyte': {
          topic: function() {
              return pretty(1234567890123456789);
          },
          'should print exabytes': function(topic) {
              assert.equal(topic, '1.1 EB');
          },
          'exact': {
              topic: function() {
                  return pretty(1024 * 1024 * 1024 * 1024 * 1024 * 1024);
              },
              'should be exactly 1 EB': function(topic) {
                  assert.equal(topic, '1 EB');
              }
          }
      }
  };
  
  vows.describe('prettysize').addBatch(tests).export(module);
  