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-rw-r--r--python/bitstring/test/test_bitarray.py310
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diff --git a/python/bitstring/test/test_bitarray.py b/python/bitstring/test/test_bitarray.py
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+#!/usr/bin/env python
+"""
+Unit tests for the bitarray module.
+"""
+
+import unittest
+import sys
+
+sys.path.insert(0, '..')
+import bitstring
+from bitstring import BitArray
+
+class All(unittest.TestCase):
+ def testCreationFromUint(self):
+ s = BitArray(uint=15, length=6)
+ self.assertEqual(s.bin, '001111')
+ s = BitArray(uint=0, length=1)
+ self.assertEqual(s.bin, '0')
+ s.uint = 1
+ self.assertEqual(s.uint, 1)
+ s = BitArray(length=8)
+ s.uint = 0
+ self.assertEqual(s.uint, 0)
+ s.uint = 255
+ self.assertEqual(s.uint, 255)
+ self.assertEqual(s.len, 8)
+ self.assertRaises(bitstring.CreationError, s._setuint, 256)
+
+ def testCreationFromOct(self):
+ s = BitArray(oct='7')
+ self.assertEqual(s.oct, '7')
+ self.assertEqual(s.bin, '111')
+ s.append('0o1')
+ self.assertEqual(s.bin, '111001')
+ s.oct = '12345670'
+ self.assertEqual(s.length, 24)
+ self.assertEqual(s.bin, '001010011100101110111000')
+ s = BitArray('0o123')
+ self.assertEqual(s.oct, '123')
+
+
+class NoPosAttribute(unittest.TestCase):
+ def testReplace(self):
+ s = BitArray('0b01')
+ s.replace('0b1', '0b11')
+ self.assertEqual(s, '0b011')
+
+ def testDelete(self):
+ s = BitArray('0b000000001')
+ del s[-1:]
+ self.assertEqual(s, '0b00000000')
+
+ def testInsert(self):
+ s = BitArray('0b00')
+ s.insert('0xf', 1)
+ self.assertEqual(s, '0b011110')
+
+ def testInsertParameters(self):
+ s = BitArray('0b111')
+ self.assertRaises(TypeError, s.insert, '0x4')
+
+ def testOverwrite(self):
+ s = BitArray('0b01110')
+ s.overwrite('0b000', 1)
+ self.assertEqual(s, '0b00000')
+
+ def testOverwriteParameters(self):
+ s = BitArray('0b0000')
+ self.assertRaises(TypeError, s.overwrite, '0b111')
+
+ def testPrepend(self):
+ s = BitArray('0b0')
+ s.prepend([1])
+ self.assertEqual(s, [1, 0])
+
+ def testRol(self):
+ s = BitArray('0b0001')
+ s.rol(1)
+ self.assertEqual(s, '0b0010')
+
+ def testRor(self):
+ s = BitArray('0b1000')
+ s.ror(1)
+ self.assertEqual(s, '0b0100')
+
+ def testSetItem(self):
+ s = BitArray('0b000100')
+ s[4:5] = '0xf'
+ self.assertEqual(s, '0b000111110')
+ s[0:1] = [1]
+ self.assertEqual(s, '0b100111110')
+
+
+class Bugs(unittest.TestCase):
+ def testAddingNonsense(self):
+ a = BitArray([0])
+ a += '0' # a uint of length 0 - so nothing gets added.
+ self.assertEqual(a, [0])
+ self.assertRaises(ValueError, a.__iadd__, '3')
+ self.assertRaises(ValueError, a.__iadd__, 'se')
+ self.assertRaises(ValueError, a.__iadd__, 'float:32')
+
+ def testPrependAfterCreationFromDataWithOffset(self):
+ s1 = BitArray(bytes=b'\x00\x00\x07\xff\xf0\x00', offset=21, length=15)
+ self.assertFalse(s1.any(0))
+ s1.prepend('0b0')
+ self.assertEqual(s1.bin, '0111111111111111')
+ s1.prepend('0b0')
+ self.assertEqual(s1.bin, '00111111111111111')
+
+
+class ByteAligned(unittest.TestCase):
+ def testDefault(self, defaultbytealigned=bitstring.bytealigned):
+ self.assertFalse(defaultbytealigned)
+
+ def testChangingIt(self):
+ bitstring.bytealigned = True
+ self.assertTrue(bitstring.bytealigned)
+ bitstring.bytealigned = False
+
+ def testNotByteAligned(self):
+ bitstring.bytealigned = False
+ a = BitArray('0x00 ff 0f f')
+ l = list(a.findall('0xff'))
+ self.assertEqual(l, [8, 20])
+ p = a.find('0x0f')[0]
+ self.assertEqual(p, 4)
+ p = a.rfind('0xff')[0]
+ self.assertEqual(p, 20)
+ s = list(a.split('0xff'))
+ self.assertEqual(s, ['0x00', '0xff0', '0xff'])
+ a.replace('0xff', '')
+ self.assertEqual(a, '0x000')
+
+ def testByteAligned(self):
+ bitstring.bytealigned = True
+ a = BitArray('0x00 ff 0f f')
+ l = list(a.findall('0xff'))
+ self.assertEqual(l, [8])
+ p = a.find('0x0f')[0]
+ self.assertEqual(p, 16)
+ p = a.rfind('0xff')[0]
+ self.assertEqual(p, 8)
+ s = list(a.split('0xff'))
+ self.assertEqual(s, ['0x00', '0xff0ff'])
+ a.replace('0xff', '')
+ self.assertEqual(a, '0x000ff')
+
+
+class SliceAssignment(unittest.TestCase):
+
+ def testSliceAssignmentSingleBit(self):
+ a = BitArray('0b000')
+ a[2] = '0b1'
+ self.assertEqual(a.bin, '001')
+ a[0] = BitArray(bin='1')
+ self.assertEqual(a.bin, '101')
+ a[-1] = '0b0'
+ self.assertEqual(a.bin, '100')
+ a[-3] = '0b0'
+ self.assertEqual(a.bin, '000')
+
+ def testSliceAssignmentSingleBitErrors(self):
+ a = BitArray('0b000')
+ self.assertRaises(IndexError, a.__setitem__, -4, '0b1')
+ self.assertRaises(IndexError, a.__setitem__, 3, '0b1')
+ self.assertRaises(TypeError, a.__setitem__, 1, 1.3)
+
+ def testSliceAssignmentMulipleBits(self):
+ a = BitArray('0b0')
+ a[0] = '0b110'
+ self.assertEqual(a.bin, '110')
+ a[0] = '0b000'
+ self.assertEqual(a.bin, '00010')
+ a[0:3] = '0b111'
+ self.assertEqual(a.bin, '11110')
+ a[-2:] = '0b011'
+ self.assertEqual(a.bin, '111011')
+ a[:] = '0x12345'
+ self.assertEqual(a.hex, '12345')
+ a[:] = ''
+ self.assertFalse(a)
+
+ def testSliceAssignmentMultipleBitsErrors(self):
+ a = BitArray()
+ self.assertRaises(IndexError, a.__setitem__, 0, '0b00')
+ a += '0b1'
+ a[0:2] = '0b11'
+ self.assertEqual(a, '0b11')
+
+ def testDelSliceStep(self):
+ a = BitArray(bin='100111101001001110110100101')
+ del a[::2]
+ self.assertEqual(a.bin, '0110010101100')
+ del a[3:9:3]
+ self.assertEqual(a.bin, '01101101100')
+ del a[2:7:1]
+ self.assertEqual(a.bin, '011100')
+ del a[::99]
+ self.assertEqual(a.bin, '11100')
+ del a[::1]
+ self.assertEqual(a.bin, '')
+
+ def testDelSliceNegativeStep(self):
+ a = BitArray('0b0001011101101100100110000001')
+ del a[5:23:-3]
+ self.assertEqual(a.bin, '0001011101101100100110000001')
+ del a[25:3:-3]
+ self.assertEqual(a.bin, '00011101010000100001')
+ del a[:6:-7]
+ self.assertEqual(a.bin, '000111010100010000')
+ del a[15::-2]
+ self.assertEqual(a.bin, '0010000000')
+ del a[::-1]
+ self.assertEqual(a.bin, '')
+
+ def testDelSliceErrors(self):
+ a = BitArray(10)
+ del a[5:3]
+ self.assertEqual(a, 10)
+ del a[3:5:-1]
+ self.assertEqual(a, 10)
+
+ def testDelSingleElement(self):
+ a = BitArray('0b0010011')
+ del a[-1]
+ self.assertEqual(a.bin, '001001')
+ del a[2]
+ self.assertEqual(a.bin, '00001')
+ try:
+ del a[5]
+ self.assertTrue(False)
+ except IndexError:
+ pass
+
+ def testSetSliceStep(self):
+ a = BitArray(bin='0000000000')
+ a[::2] = '0b11111'
+ self.assertEqual(a.bin, '1010101010')
+ a[4:9:3] = [0, 0]
+ self.assertEqual(a.bin, '1010001010')
+ a[7:3:-1] = [1, 1, 1, 0]
+ self.assertEqual(a.bin, '1010011110')
+ a[7:1:-2] = [0, 0, 1]
+ self.assertEqual(a.bin, '1011001010')
+ a[::-5] = [1, 1]
+ self.assertEqual(a.bin, '1011101011')
+ a[::-1] = [0, 0, 0, 0, 0, 0, 0, 0, 0, 1]
+ self.assertEqual(a.bin, '1000000000')
+
+ def testSetSliceErrors(self):
+ a = BitArray(8)
+ try:
+ a[::3] = [1]
+ self.assertTrue(False)
+ except ValueError:
+ pass
+ class A(object): pass
+ try:
+ a[1:2] = A()
+ self.assertTrue(False)
+ except TypeError:
+ pass
+ try:
+ a[1:4:-1] = [1, 2]
+ self.assertTrue(False)
+ except ValueError:
+ pass
+
+
+class Subclassing(unittest.TestCase):
+
+ def testIsInstance(self):
+ class SubBits(BitArray): pass
+ a = SubBits()
+ self.assertTrue(isinstance(a, SubBits))
+
+ def testClassType(self):
+ class SubBits(BitArray): pass
+ self.assertEqual(SubBits().__class__, SubBits)
+
+
+class Clear(unittest.TestCase):
+
+ def testClear(self):
+ s = BitArray('0xfff')
+ s.clear()
+ self.assertEqual(s.len, 0)
+
+
+class Copy(unittest.TestCase):
+
+ def testCopyMethod(self):
+ s = BitArray(9)
+ t = s.copy()
+ self.assertEqual(s, t)
+ t[0] = True
+ self.assertEqual(t.bin, '100000000')
+ self.assertEqual(s.bin, '000000000')
+
+
+class ModifiedByAddingBug(unittest.TestCase):
+
+ def testAdding(self):
+ a = BitArray('0b0')
+ b = BitArray('0b11')
+ c = a + b
+ self.assertEqual(c, '0b011')
+ self.assertEqual(a, '0b0')
+ self.assertEqual(b, '0b11') \ No newline at end of file