def testSub(self):
x = SizeStruct.new_from_bytes(8, 1)
y = SizeStruct.new_from_bytes(16, 1)
actual = x.sub(y).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, -1)
y = SizeStruct.new_from_bytes(16, 1)
actual = x.sub(y).get_bytes()
expected = (24, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, -1)
y = SizeStruct.new_from_bytes(16, -1)
actual = x.sub(y).get_bytes()
expected = (8, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(0, 0)
y = SizeStruct.new_from_bytes(16, -1)
actual = x.sub(y).get_bytes()
expected = (16, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(0, 0)
y = SizeStruct.new_from_bytes(0, 0)
actual = x.sub(y).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
def testSub(self):
x = SizeStruct.new_from_bytes(8, 1)
y = SizeStruct.new_from_bytes(16, 1)
actual = x.sub(y).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, -1)
y = SizeStruct.new_from_bytes(16, 1)
actual = x.sub(y).get_bytes()
expected = (24, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, -1)
y = SizeStruct.new_from_bytes(16, -1)
actual = x.sub(y).get_bytes()
expected = (8, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(0, 0)
y = SizeStruct.new_from_bytes(16, -1)
actual = x.sub(y).get_bytes()
expected = (16, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(0, 0)
y = SizeStruct.new_from_bytes(0, 0)
actual = x.sub(y).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
def testGrow(self):
x = SizeStruct.new_from_bytes(16, 1)
y = SizeStruct.new_from_bytes(8, 1)
x.grow(y)
actual = x.get_bytes()
expected = (24, 1)
self.assertEqual(actual, expected)
def testGrow(self):
x = SizeStruct.new_from_bytes(16, 1)
y = SizeStruct.new_from_bytes(8, 1)
x.grow(y)
actual = x.get_bytes()
expected = (24, 1)
self.assertEqual(actual, expected)
def testGrowBytes(self):
x = SizeStruct.new_from_bytes(16, 1)
x.grow_bytes(8)
actual = x.get_bytes()
expected = (24, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(16, 1)
x.grow_bytes(2**36)
actual = x.get_bytes()
expected = (16 + 2**36, 1)
self.assertEqual(actual, expected)
def testNewFromBytes(self):
actual = SizeStruct.new_from_bytes(0, 0).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
actual = SizeStruct.new_from_bytes(10, 1).get_bytes()
expected = (10, 1)
self.assertEqual(actual, expected)
actual = SizeStruct.new_from_bytes(1024, -1).get_bytes()
expected = (1024, -1)
self.assertEqual(actual, expected)
def testShrink(self):
x = SizeStruct.new_from_bytes(16, 1)
y = SizeStruct.new_from_bytes(8, 1)
x.shrink(y)
actual = x.get_bytes()
expected = (8, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, 1)
y = SizeStruct.new_from_bytes(16, 1)
x.shrink(y)
actual = x.get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
def testShrink(self):
x = SizeStruct.new_from_bytes(16, 1)
y = SizeStruct.new_from_bytes(8, 1)
x.shrink(y)
actual = x.get_bytes()
expected = (8, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, 1)
y = SizeStruct.new_from_bytes(16, 1)
x.shrink(y)
actual = x.get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
def testSubBytes(self):
x = SizeStruct.new_from_bytes(8, 1)
actual = x.sub_bytes(16).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, 1)
actual = x.sub_bytes(8).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, -1)
actual = x.sub_bytes(0).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
def testSubBytes(self):
x = SizeStruct.new_from_bytes(8, 1)
actual = x.sub_bytes(16).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, 1)
actual = x.sub_bytes(8).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, -1)
actual = x.sub_bytes(0).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
def testTrueDivInt(self):
x = SizeStruct.new_from_str("1000 B")
y = 100
divResult = float(
x.true_div_int(y)[:15]
) # just some number to cover accuracy and not cross max float range
self.assertAlmostEqual(divResult, 1000.0 / 100.0)
x = SizeStruct.new_from_str("-1 MiB")
y = 1024
divResult = float(
x.true_div_int(y)[:15]
) # just some number to cover accuracy and not cross max float range
self.assertAlmostEqual(divResult, -1024.0)
x = SizeStruct.new_from_str("0 MiB")
y = 1024
divResult = float(
x.true_div_int(y)[:15]
) # just some number to cover accuracy and not cross max float range
self.assertAlmostEqual(divResult, 0.0)
x = SizeStruct.new_from_bytes(10 * 2**36, 1)
y = 2**36
try:
res = float(x.true_div_int(y)[:15])
self.assertAlmostEqual(res, 10.0)
except OverflowError:
# ULONG_MAX is the real limit for division, if it's smaller than
# UINT64_MAX, an error is expected, otherwise it is a bug
if ctypes.sizeof(ctypes.c_ulong) == 4:
pass
def testShrinkDivInt(self):
x = SizeStruct.new_from_str("100 B")
y = 11
x.shrink_div_int(y)
actual = x.get_bytes()
expected = (9, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_str("98 B")
y = 11
x.shrink_div_int(y)
actual = x.get_bytes()
expected = (8, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(2 * 2**36, 1)
y = 2**36
try:
res = x.shrink_div_int(y).get_bytes()
self.assertEqual(res, (2, 1))
except OverflowError:
# ULONG_MAX is the real limit for division, if it's smaller than
# UINT64_MAX, an error is expected, otherwise it is a bug
if ctypes.sizeof(ctypes.c_ulong) == 4:
pass
def testNewFromBytes(self):
actual = SizeStruct.new_from_bytes(0, 0).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
actual = SizeStruct.new_from_bytes(10, 1).get_bytes()
expected = (10, 1)
self.assertEqual(actual, expected)
actual = SizeStruct.new_from_bytes(1024, -1).get_bytes()
expected = (1024, -1)
self.assertEqual(actual, expected)
# now let's try something bigger than MAXUINT32
actual = SizeStruct.new_from_bytes(5718360 * 1024, 1).get_bytes()
expected = (5718360 * 1024, 1)
self.assertEqual(actual, expected)
def testNewFromBytes(self):
actual = SizeStruct.new_from_bytes(0, 0).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
actual = SizeStruct.new_from_bytes(10, 1).get_bytes()
expected = (10, 1)
self.assertEqual(actual, expected)
actual = SizeStruct.new_from_bytes(1024, -1).get_bytes()
expected = (1024, -1)
self.assertEqual(actual, expected)
# now let's try something bigger than MAXUINT32
actual = SizeStruct.new_from_bytes(5718360*1024, 1).get_bytes()
expected = (5718360*1024, 1)
self.assertEqual(actual, expected)
def testSubBytes(self):
x = SizeStruct.new_from_bytes(8, 1)
actual = x.sub_bytes(16).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, 1)
actual = x.sub_bytes(8).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(8, -1)
actual = x.sub_bytes(0).get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
# try some big value (bigger than ULONG_MAX on 32bit arches)
x = SizeStruct.new_from_bytes(2**36 + 10, 1)
actual = x.sub_bytes(2**36).get_bytes()
expected = (10, 1)
self.assertEqual(actual, expected)
def testDivInt(self):
x = SizeStruct.new_from_str("1 MiB")
y = 1024
divResult = x.div_int(y).get_bytes()
self.assertEqual(divResult, (1024, 1))
x = SizeStruct.new_from_str("-1 MiB")
y = 1077
divResult = x.div_int(y).get_bytes()
self.assertEqual(divResult, (973, -1))
try:
x = SizeStruct.new_from_bytes(2 * 2**36, 1)
y = 2**36
res = x.div_int(y).get_bytes()
self.assertEqual(res, (2, 1))
except OverflowError:
# ULONG_MAX is the real limit for division, if it's smaller than
# UINT64_MAX, an error is expected, otherwise it is a bug
if ctypes.sizeof(ctypes.c_ulong) == 4:
pass
def testGrowMulInt(self):
x = SizeStruct.new_from_str("8 B")
x.grow_mul_int(2)
actual = x.get_bytes()
expected = (16, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_str("0 B")
x.grow_mul_int(1)
actual = x.get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_str("10 B")
x.grow_mul_int(0)
actual = x.get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(4, 1)
x.grow_mul_int(2**36)
actual = x.get_bytes()
expected = (4 * 2**36, 1)
self.assertEqual(actual, expected)
def testShrinkBytes(self):
x = SizeStruct.new_from_str("8 B")
x.shrink_bytes(2)
actual = x.get_bytes()
expected = (6, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_str("8 B")
x.shrink_bytes(16)
actual = x.get_bytes()
expected = (8, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_str("-8 B")
x.shrink_bytes(8)
actual = x.get_bytes()
expected = (16, -1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(2 * 2**36, 1)
x.shrink_bytes(2**36)
actual = x.get_bytes()
expected = (2**36, 1)
self.assertEqual(actual, expected)
def testMulInt(self):
x = SizeStruct.new_from_str("8 B")
y = 2
actual = x.mul_int(y).get_bytes()
expected = (16, 1)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_str("0 B")
y = 1
actual = x.mul_int(y).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_str("10 B")
y = 0
actual = x.mul_int(y).get_bytes()
expected = (0, 0)
self.assertEqual(actual, expected)
x = SizeStruct.new_from_bytes(4, 1)
y = 2**36
actual = x.mul_int(y).get_bytes()
expected = (4 * 2**36, 1)
self.assertEqual(actual, expected)
def testNewFromSizeStruct(self):
tempSizeStruct = SizeStruct.new_from_bytes(17, 1)
actual = SizeStruct.new_from_size(tempSizeStruct).get_bytes()
expected = (17, 1)
self.assertEqual(actual, expected)
def testNewFromSizeStruct(self):
tempSizeStruct = SizeStruct.new_from_bytes(17, 1)
actual = SizeStruct.new_from_size(tempSizeStruct).get_bytes()
expected = (17, 1)
self.assertEqual(actual, expected)
