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Code Issues Projects Releases Packages Wiki Activity Actions 13

Access _struct attributes directly instead of mucking with getattr.

Browse source 
string_reverse():  Simplify.

assertRaises():  Raise TestFailed on failure.

test_unpack_from(), test_pack_into(), test_pack_into_fn():  never
use `assert` to test for an expected result (it doesn't test anything
when Python is run with -O).
This commit is contained in:
Tim Peters 2006-06-05 20:48:49 +00:00
parent 5332989bda
commit 852eae1bc1
1 changed files with 18 additions and 20 deletions
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38
Lib/test/test_struct.py
View file

@ -1,4 +1,4 @@
from test.test_support import TestFailed, verbose, verify from test.test_support import TestFailed, verbose, verify, vereq
import test.test_support import test.test_support
import struct import struct
import array import array
@ -16,13 +16,11 @@ except ImportError:
PY_STRUCT_RANGE_CHECKING = 0 PY_STRUCT_RANGE_CHECKING = 0
PY_STRUCT_OVERFLOW_MASKING = 1 PY_STRUCT_OVERFLOW_MASKING = 1
else: else:
PY_STRUCT_RANGE_CHECKING = getattr(_struct, '_PY_STRUCT_RANGE_CHECKING', 0) PY_STRUCT_RANGE_CHECKING = _struct._PY_STRUCT_RANGE_CHECKING
PY_STRUCT_OVERFLOW_MASKING = getattr(_struct, '_PY_STRUCT_OVERFLOW_MASKING', 0) PY_STRUCT_OVERFLOW_MASKING = _struct._PY_STRUCT_OVERFLOW_MASKING
def string_reverse(s): def string_reverse(s):
chars = list(s) return "".join(reversed(s))
chars.reverse()
return "".join(chars)
def bigendian_to_native(value): def bigendian_to_native(value):
if ISBIGENDIAN: if ISBIGENDIAN:
@ -504,7 +502,7 @@ def assertRaises(excClass, callableObj, *args, **kwargs):
except excClass: except excClass:
return return
else: else:
raise RuntimeError("%s not raised." % excClass) raise TestFailed("%s not raised." % excClass)
def test_unpack_from(): def test_unpack_from():
test_string = 'abcd01234' test_string = 'abcd01234'
@ -512,20 +510,20 @@ def test_unpack_from():
s = struct.Struct(fmt) s = struct.Struct(fmt)
for cls in (str, buffer): for cls in (str, buffer):
data = cls(test_string) data = cls(test_string)
assert s.unpack_from(data) == ('abcd',) vereq(s.unpack_from(data), ('abcd',))
assert s.unpack_from(data, 2) == ('cd01',) vereq(s.unpack_from(data, 2), ('cd01',))
assert s.unpack_from(data, 4) == ('0123',) vereq(s.unpack_from(data, 4), ('0123',))
for i in xrange(6): for i in xrange(6):
assert s.unpack_from(data, i) == (data[i:i+4],) vereq(s.unpack_from(data, i), (data[i:i+4],))
for i in xrange(6, len(test_string) + 1): for i in xrange(6, len(test_string) + 1):
simple_err(s.unpack_from, data, i) simple_err(s.unpack_from, data, i)
for cls in (str, buffer): for cls in (str, buffer):
data = cls(test_string) data = cls(test_string)
assert struct.unpack_from(fmt, data) == ('abcd',) vereq(struct.unpack_from(fmt, data), ('abcd',))
assert struct.unpack_from(fmt, data, 2) == ('cd01',) vereq(struct.unpack_from(fmt, data, 2), ('cd01',))
assert struct.unpack_from(fmt, data, 4) == ('0123',) vereq(struct.unpack_from(fmt, data, 4), ('0123',))
for i in xrange(6): for i in xrange(6):
assert (struct.unpack_from(fmt, data, i) == (data[i:i+4],)) vereq(struct.unpack_from(fmt, data, i), (data[i:i+4],))
for i in xrange(6, len(test_string) + 1): for i in xrange(6, len(test_string) + 1):
simple_err(struct.unpack_from, fmt, data, i) simple_err(struct.unpack_from, fmt, data, i)
@ -538,12 +536,12 @@ def test_pack_into():
# Test without offset # Test without offset
s.pack_into(writable_buf, 0, test_string) s.pack_into(writable_buf, 0, test_string)
from_buf = writable_buf.tostring()[:len(test_string)] from_buf = writable_buf.tostring()[:len(test_string)]
assert from_buf == test_string vereq(from_buf, test_string)
# Test with offset. # Test with offset.
s.pack_into(writable_buf, 10, test_string) s.pack_into(writable_buf, 10, test_string)
from_buf = writable_buf.tostring()[:len(test_string)+10] from_buf = writable_buf.tostring()[:len(test_string)+10]
assert from_buf == (test_string[:10] + test_string) vereq(from_buf, test_string[:10] + test_string)
# Go beyond boundaries. # Go beyond boundaries.
small_buf = array.array('c', ' '*10) small_buf = array.array('c', ' '*10)
@ -556,15 +554,15 @@ def test_pack_into_fn():
fmt = '21s' fmt = '21s'
pack_into = lambda *args: struct.pack_into(fmt, *args) pack_into = lambda *args: struct.pack_into(fmt, *args)
# Test without offset # Test without offset.
pack_into(writable_buf, 0, test_string) pack_into(writable_buf, 0, test_string)
from_buf = writable_buf.tostring()[:len(test_string)] from_buf = writable_buf.tostring()[:len(test_string)]
assert from_buf == test_string vereq(from_buf, test_string)
# Test with offset. # Test with offset.
pack_into(writable_buf, 10, test_string) pack_into(writable_buf, 10, test_string)
from_buf = writable_buf.tostring()[:len(test_string)+10] from_buf = writable_buf.tostring()[:len(test_string)+10]
assert from_buf == (test_string[:10] + test_string) vereq(from_buf, test_string[:10] + test_string)
# Go beyond boundaries. # Go beyond boundaries.
small_buf = array.array('c', ' '*10) small_buf = array.array('c', ' '*10)