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import unittest
from galileo.dongle import DataRing
class testRing(unittest.TestCase):
def testEmpty(self):
r = DataRing(5)
self.assertEqual([], r.getData())
self.assertTrue(r.empty)
self.assertFalse(r.full)
def testCapaNull(self):
r = DataRing(0)
r.add(5)
self.assertEqual([], r.getData())
self.assertTrue(r.empty)
self.assertTrue(r.full)
def testOneElement(self):
r = DataRing(10)
r.add('data')
self.assertEqual(['data'], r.getData())
self.assertFalse(r.empty)
self.assertFalse(r.full)
self.assertEqual(r.queue + 1, r.head)
self.assertEqual(1, r.fill)
def testTwoElement(self):
r = DataRing(10)
r.add('data1')
r.add('data2')
self.assertFalse(r.empty)
self.assertEqual(['data1', 'data2'], r.getData())
self.assertEqual(2, r.fill)
def testThreeElement(self):
r = DataRing(10)
r.add('data1')
r.add('data2')
r.add('data3')
self.assertFalse(r.empty)
self.assertEqual(['data1', 'data2', 'data3'], r.getData())
self.assertEqual(3, r.fill)
def testOverflow(self):
r = DataRing(2)
self.assertFalse(r.full)
self.assertEqual(0, r.fill)
r.add('data1')
self.assertFalse(r.full)
self.assertEqual(1, r.fill)
r.add('data2')
self.assertTrue(r.full)
self.assertEqual(2, r.fill)
r.add('data3')
self.assertFalse(r.empty)
self.assertTrue(r.full)
self.assertEqual(2, r.fill)
self.assertEqual(['data2', 'data3'], r.getData())
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