Put simulation code into separate module

sw/test/test_utility.py

@@ -1,25 +1,7 @@
 import unittest
 import numpy as np
 
-from utility import simulation, noise, codes
-
-
-class CountBitErrorsTestCase(unittest.TestCase):
-    """Test case for bit error counting."""
-
-    def test_count_bit_errors(self):
-        d1 = np.array([0, 0, 0, 0])
-        y_hat1 = np.array([0, 1, 0, 1])
-
-        d2 = np.array([0, 0, 0, 0])
-        y_hat2 = np.array([0, 0, 0, 0])
-
-        d3 = np.array([0, 0, 0, 0])
-        y_hat3 = np.array([1, 1, 1, 1])
-
-        self.assertEqual(simulation.count_bit_errors(d1, y_hat1), 2)
-        self.assertEqual(simulation.count_bit_errors(d2, y_hat2), 0)
-        self.assertEqual(simulation.count_bit_errors(d3, y_hat3), 4)
+from utility import noise, codes
 
 
 # TODO: Rewrite tests for new SNR calculation