text: # Unit test for stats collector object.
  
  # Copyright (c) 2015, Andre Lucas
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  #       derived from this software without specific prior written permission.
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  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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  import unittest
  
  from hsync.stats import *
  
  
  class StatsCollectorUnitTestCase(unittest.TestCase):
  
      def test_basic1(self):
          '''Simple set test'''
          s = StatsCollector.init('statstest', ['a', 'b'])
          s.a += 1
          s.b = 2
          self.assertEquals(s.a, 1, "Increment")
          self.assertEquals(s.b, 2, "Set directly")
  
      def test_unknown_attr_fail(self):
          '''Unknown attribute should raise'''
          s = StatsCollector.init('statstest', ['a', 'b'])
          with self.assertRaises(TypeError):
              s.c = 1
  
      def test_add_del_attr(self):
          '''Can add and delete attributes'''
          s = StatsCollector.init('statstest', ['a', 'b'])
          with self.assertRaises(TypeError):
              s.c = 3
          s.add_attributes(['c'])
          s.c = 3
          self.assertEquals(s.c, 3, "Set new attr")
          s.del_attributes(['b'])
          with self.assertRaises(TypeError):
              s.b = 2
  
      def test_iteritems(self):
          '''iteritems() works'''
          s = StatsCollector.init('statstest', ['a', 'b', 'c'])
          s.a = 1
          s.b = 2
          s.c = 3
          copy = {}
          for k, v in s.iteritems():
              copy[k] = v
  
          test = {'a': 1, 'b': 2, 'c': 3}
          self.assertEquals(copy, test)
  
      def test_check_str(self):
          '''str() works'''
          s = StatsCollector.init('statstest', ['a', 'b'])
          s.a = 1
          s.b = 2
          self.assertEquals(str(s), 'statstest: a=1, b=2',
                            "str() is as expected")
  