def test_nptype2cformat():
r"""Test conversion from numpy dtype to C format string."""
for a, b in map_nptype2cformat:
if isinstance(a, str):
a = [a]
for ia in a:
assert (serialize.nptype2cformat(ia) == b)
with pytest.raises(TypeError):
serialize.nptype2cformat(0)
for a in unsupported_nptype:
with pytest.raises(ValueError):
serialize.nptype2cformat(a)
def test_nptype2cformat_structured():
r"""Test conversion from structured numpy dtype to C format string."""
if platform._is_win: # pragma: windows
fmts = ["%5s", "%l64d", "%g", "%g%+gj"]
else:
fmts = ["%5s", "%ld", "%g", "%g%+gj"]
names0 = ['f0', 'f1', 'f2', 'f3']
names1 = ["name", "number", "value", "complex"]
dtypes = ['S5', 'i8', 'f8', 'c16']
dtype0 = np.dtype([(n, f) for n, f in zip(names0, dtypes)])
dtype1 = np.dtype([(n, f) for n, f in zip(names1, dtypes)])
alist = [dtype0, dtype1]
blist = [fmts, fmts]
for a, b in zip(alist, blist):
assert_equal(serialize.nptype2cformat(a), b)
assert_equal(serialize.nptype2cformat(a, asbytes=True),
[backwards.as_bytes(ib) for ib in b])
def test_nptype2cformat():
r"""Test conversion from numpy dtype to C format string."""
for a, b in map_nptype2cformat:
if isinstance(a, str):
a = [a]
for ia in a:
assert_equal(serialize.nptype2cformat(ia), b)
assert_raises(TypeError, serialize.nptype2cformat, 0)
for a in unsupported_nptype:
assert_raises(ValueError, serialize.nptype2cformat, a)
def update_format_str(self):
r"""Update the format string based on the type definition."""
# Get format information from precision etc.
if (self.format_str is None) and self.initialized:
assert(self.typedef['type'] == 'array')
fmts = []
if isinstance(self.typedef['items'], dict): # pragma: debug
idtype = definition2dtype(self.typedef['items'])
ifmt = serialize.nptype2cformat(idtype, asbytes=True)
# fmts = [ifmt for x in msg]
raise Exception("Variable number of items not yet supported.")
elif isinstance(self.typedef['items'], list):
for x in self.typedef['items']:
idtype = definition2dtype(x)
ifmt = serialize.nptype2cformat(idtype, asbytes=True)
fmts.append(ifmt)
if fmts:
self.format_str = serialize.table2format(
fmts=fmts, delimiter=self.delimiter, newline=self.newline,
comment=b'')