Exemplo n.º 1
0
 def testArithmeticMean(self):
     a = accumulators('ArithmeticMean')
     self.assertIsNone(a.result())
     a(4)
     self.assertEqual(4,a.result())
     a(2)
     a(-3)
     self.assertEqual(1,a.result())
     a.reset()
     self.assertIsNone(a.result())
Exemplo n.º 2
0
 def __init__(self, block_size, channel_config, output_location):
     self.seen_rows = 0
     #Accumulators bypassed if we are just doing single values
     if block_size == 1:
         channel_config = copy.deepcopy(channel_config)
         channel_config['accumulators'] = ['LastVal']
     self.block_size = block_size
     self.accumulators = [accumulators(accum) for accum in channel_config['accumulators']]
     self.encoder = encoders(channel_config['encoder'])
     self.encoder.start(output_location, channel_config, block_size)
Exemplo n.º 3
0
 def testGeometricMean(self):
     a = accumulators('GeometricMean')
     self.assertIsNone(a.result())
     a(4)
     self.assertEqual(4,a.result())
     a(2)
     self.assertRaises(ValueError, lambda: a(-3))
     self.assertEqual(2.8284271247461903,a.result())
     a.reset()
     self.assertIsNone(a.result())
Exemplo n.º 4
0
 def testLastVal(self):
     a = accumulators('LastVal')
     self.assertIsNone(a.result())
     a(5)
     self.assertEqual(5,a.result())
     a(4)
     a(3)
     self.assertEqual(3,a.result())
     a.reset()
     self.assertIsNone(a.result())
Exemplo n.º 5
0
 def testMax(self):
     a = accumulators('Max')
     self.assertEqual(float('-inf'),a.result())
     a(5)
     self.assertEqual(5,a.result())
     a(4)
     a(3)
     a(6)
     self.assertEqual(6,a.result())
     a.reset()
     self.assertEqual(float('-inf'),a.result())
Exemplo n.º 6
0
    def testMin(self):
        a = accumulators('Min')
        self.assertEqual(float('inf'),a.result())

        a(5)
        self.assertEqual(5,a.result())
        a(4)
        a(3)
        self.assertEqual(3,a.result())
        a.reset()
        self.assertEqual(float('inf'),a.result())
Exemplo n.º 7
0
 def testMedian(self):
     a = accumulators('Median')
     self.assertIsNone(a.result())
     a(4)
     self.assertEqual(4,a.result())
     a(2)
     a(-3)
     self.assertEqual(2,a.result())
     a(-5)
     self.assertEqual(-0.5,a.result())
     a.reset()
     self.assertIsNone(a.result())
Exemplo n.º 8
0
 def testPercentile(self):
     a = accumulators({'Percentile':{'percent':0.25}})
     self.assertIsNone(a.result())
     a(4)
     self.assertEqual(4,a.result())
     a(2)
     a(0)
     self.assertEqual(1,a.result())
     a(-5)
     a(-1)
     self.assertEqual(-1,a.result())
     a.reset()
     self.assertIsNone(a.result())
Exemplo n.º 9
0
 def test_dynamic_load(self):
     self.assertEqual(type(accumulators('LastVal')), accumulators.LastVal)
     a = accumulators({'Median':{'test':'foobar'}})
     self.assertEqual(type(a), accumulators.Median)
     self.assertEqual(a.test, 'foobar')