def test_file_candidates(url, spec, expected_candidates):
# we circumvent the path existence checks here to simplify testing
filt, subj, repl = parse_spec(spec)
spec = MapLocalSpec(filt, subj, Path(repl))
candidates = file_candidates(url, spec)
assert [x.as_posix() for x in candidates] == expected_candidates
def parse_map_remote_spec(option: str) -> MapRemoteSpec:
spec = MapRemoteSpec(*parse_spec(option))
try:
re.compile(spec.subject)
except re.error as e:
raise ValueError(f"Invalid regular expression {spec.subject!r} ({e})")
return spec
def parse_map_local_spec(option: str) -> MapLocalSpec:
filter, regex, replacement = parse_spec(option)
try:
re.compile(regex)
except re.error as e:
raise ValueError(f"Invalid regular expression {regex!r} ({e})")
try:
path = Path(replacement).expanduser().resolve(strict=True)
except FileNotFoundError as e:
raise ValueError(f"Invalid file path: {replacement} ({e})")
return MapLocalSpec(filter, regex, path)
def parse_modify_spec(option: str, subject_is_regex: bool) -> ModifySpec:
flow_filter, subject_str, replacement = parse_spec(option)
subject = strutils.escaped_str_to_bytes(subject_str)
if subject_is_regex:
try:
re.compile(subject)
except re.error as e:
raise ValueError(f"Invalid regular expression {subject!r} ({e})")
spec = ModifySpec(flow_filter, subject, replacement)
try:
spec.read_replacement()
except OSError as e:
raise ValueError(f"Invalid file path: {replacement[1:]} ({e})")
return spec
def test_parse_spec():
flow_filter, subject, replacement = parse_spec("/foo/bar/voing")
assert flow_filter.pattern == "foo"
assert subject == "bar"
assert replacement == "voing"
flow_filter, subject, replacement = parse_spec("/bar/voing")
assert flow_filter(1) is True
assert subject == "bar"
assert replacement == "voing"
with pytest.raises(ValueError, match="Invalid number of parameters"):
parse_spec("/")
with pytest.raises(ValueError, match="Invalid filter expression"):
parse_spec("/~b/one/two")
