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import dataclasses
import datetime
import enum
import sys
import uuid
from decimal import Decimal
from typing import Dict, FrozenSet, List, Set, Tuple
import pytest
import msgspec
try:
import tomllib
except ImportError:
try:
import tomli as tomllib
except ImportError:
tomllib = None
try:
import tomli_w
except ImportError:
tomli_w = None
needs_decode = pytest.mark.skipif(
tomllib is None, reason="Neither tomllib or tomli are installed"
)
needs_encode = pytest.mark.skipif(tomli_w is None, reason="tomli_w is not installed")
PY311 = sys.version_info[:2] >= (3, 11)
UTC = datetime.timezone.utc
class ExStruct(msgspec.Struct):
x: int
y: str
@dataclasses.dataclass
class ExDataclass:
x: int
y: str
class ExEnum(enum.Enum):
one = "one"
two = "two"
class ExIntEnum(enum.IntEnum):
one = 1
two = 2
def test_module_dir():
assert set(dir(msgspec.toml)) == {"encode", "decode"}
@pytest.mark.skipif(PY311, reason="tomllib is builtin in 3.11+")
def test_tomli_not_installed_error(monkeypatch):
monkeypatch.setitem(sys.modules, "tomli", None)
with pytest.raises(ImportError, match="conda install"):
msgspec.toml.decode("a = 1", type=int)
def test_tomli_w_not_installed_error(monkeypatch):
monkeypatch.setitem(sys.modules, "tomli_w", None)
with pytest.raises(ImportError, match="conda install"):
msgspec.toml.encode({"a": 1})
@pytest.mark.parametrize(
"val",
[
True,
False,
1,
1.5,
"fizz",
datetime.datetime(2022, 1, 2, 3, 4, 5, 6),
datetime.datetime(2022, 1, 2, 3, 4, 5, 6, UTC),
datetime.date(2022, 1, 2),
datetime.time(12, 34),
[1, 2],
{"one": 2},
],
)
@needs_encode
@needs_decode
def test_roundtrip_any(val):
msg = msgspec.toml.encode({"x": val})
res = msgspec.toml.decode(msg)["x"]
assert res == val
@pytest.mark.parametrize(
"val, type",
[
(True, bool),
(False, bool),
(1, int),
(1.5, float),
("fizz", str),
(b"fizz", bytes),
(b"fizz", bytearray),
(datetime.datetime(2022, 1, 2, 3, 4, 5, 6), datetime.datetime),
(datetime.datetime(2022, 1, 2, 3, 4, 5, 6, UTC), datetime.datetime),
(datetime.date(2022, 1, 2), datetime.date),
(datetime.time(12, 34), datetime.time),
(uuid.uuid4(), uuid.UUID),
(ExEnum.one, ExEnum),
(ExIntEnum.one, ExIntEnum),
([1, 2], List[int]),
((1, 2), Tuple[int, ...]),
({1, 2}, Set[int]),
(frozenset({1, 2}), FrozenSet[int]),
(("one", 2), Tuple[str, int]),
({"one": 2}, Dict[str, int]),
({1: "two"}, Dict[int, str]),
(ExStruct(1, "two"), ExStruct),
(ExDataclass(1, "two"), ExDataclass),
],
)
@needs_encode
@needs_decode
def test_roundtrip_typed(val, type):
msg = msgspec.toml.encode({"x": val})
res = msgspec.toml.decode(msg, type=Dict[str, type])["x"]
assert res == val
@needs_encode
def test_encode_output_type():
msg = msgspec.toml.encode({"x": 1})
assert isinstance(msg, bytes)
@needs_encode
def test_encode_error():
class Oops:
pass
with pytest.raises(TypeError, match="Encoding objects of type Oops is unsupported"):
msgspec.toml.encode({"x": Oops()})
@needs_encode
@needs_decode
def test_encode_enc_hook():
msg = msgspec.toml.encode({"x": Decimal(1.5)}, enc_hook=str)
assert msgspec.toml.decode(msg) == {"x": "1.5"}
@needs_encode
@pytest.mark.parametrize("order", [None, "deterministic"])
def test_encode_order(order):
msg = {"y": 1, "x": ({"n": 1, "m": 2},), "z": [{"b": 1, "a": 2}]}
res = msgspec.toml.encode(msg, order=order)
if order:
sol_msg = {"x": ({"m": 2, "n": 1},), "y": 1, "z": [{"a": 2, "b": 1}]}
else:
sol_msg = msg
sol = tomli_w.dumps(sol_msg).encode("utf-8")
assert res == sol
@needs_decode
def test_decode_str_or_bytes_like():
assert msgspec.toml.decode("a = 1") == {"a": 1}
assert msgspec.toml.decode(b"a = 1") == {"a": 1}
assert msgspec.toml.decode(bytearray(b"a = 1")) == {"a": 1}
assert msgspec.toml.decode(memoryview(b"a = 1")) == {"a": 1}
with pytest.raises(TypeError):
msgspec.toml.decode(1)
@needs_decode
@pytest.mark.parametrize("msg", [b"{{", b"!!binary 123"])
def test_decode_parse_error(msg):
with pytest.raises(msgspec.DecodeError):
msgspec.toml.decode(msg)
@needs_decode
def test_decode_validation_error():
with pytest.raises(msgspec.ValidationError, match="Expected `str`"):
msgspec.toml.decode(b"a = [1, 2, 3]", type=Dict[str, List[str]])
@needs_decode
@pytest.mark.parametrize("strict", [True, False])
def test_decode_strict_or_lax(strict):
msg = b"a = ['1', '2']"
typ = Dict[str, List[int]]
if strict:
with pytest.raises(msgspec.ValidationError, match="Expected `int`"):
msgspec.toml.decode(msg, type=typ, strict=strict)
else:
res = msgspec.toml.decode(msg, type=typ, strict=strict)
assert res == {"a": [1, 2]}
@needs_decode
def test_decode_dec_hook():
def dec_hook(typ, val):
if typ is Decimal:
return Decimal(val)
raise TypeError
res = msgspec.toml.decode("a = '1.5'", type=Dict[str, Decimal], dec_hook=dec_hook)
assert res == {"a": Decimal("1.5")}
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