Add bit challenge

bit_manipulation/bit/test_bit.py

@@ -0,0 +1,38 @@
+from nose.tools import assert_equal
+
+
+class TestBit(object):
+
+    def test_bit(self):
+        number = int('10001110', base=2)
+        bit = Bit(number)
+        assert_equal(bit.get_bit(index=3), True)
+        expected = int('10011110', base=2)
+        assert_equal(bit.set_bit(index=4), expected)
+        bit = Bit(number)
+        expected = int('10000110', base=2)
+        assert_equal(bit.clear_bit(index=3), expected)
+        bit = Bit(number)
+        expected = int('00000110', base=2)
+        assert_equal(bit.clear_bits_msb_to_index(index=3), expected)
+        bit = Bit(number)
+        expected = int('10000000', base=2)
+        assert_equal(bit.clear_bits_index_to_lsb(index=3), expected)
+        bit = Bit(number)
+        assert_equal(bit.update_bit(index=3, value=1), number)
+        bit = Bit(number)
+        expected = int('10000110', base=2)
+        assert_equal(bit.update_bit(index=3, value=0), expected)
+        bit = Bit(number)
+        expected = int('10001111', base=2)
+        assert_equal(bit.update_bit(index=0, value=1), expected)
+        print('Success: test_bit')
+
+
+def main():
+    test = TestBit()
+    test.test_bit()
+
+
+if __name__ == '__main__':
+    main()