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test_generics_and_serialization_generated.py
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test_generics_and_serialization_generated.py
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import contextlib
import dataclasses
import enum
import io
from typing import Annotated, Generic, List, NewType, Tuple, Type, TypeVar
import pytest
import yaml
import tyro
T = TypeVar("T")
def _check_serialization_identity(cls: Type[T], instance: T) -> None:
assert tyro.extras.from_yaml(cls, tyro.extras.to_yaml(instance)) == instance
ScalarType = TypeVar("ScalarType")
def test_tuple_generic_variable() -> None:
@dataclasses.dataclass
class TupleGenericVariable(Generic[ScalarType]):
xyz: Tuple[ScalarType, ...]
assert tyro.cli(
TupleGenericVariable[int], args=["--xyz", "1", "2", "3"]
) == TupleGenericVariable((1, 2, 3))
def test_tuple_generic_variable_newtype() -> None:
@dataclasses.dataclass
class TupleGenericVariable(Generic[ScalarType]):
xyz: Tuple[ScalarType, ...]
SpecialInt = NewType("SpecialInt", int)
assert tyro.cli(
TupleGenericVariable[SpecialInt], args=["--xyz", "1", "2", "3"]
) == TupleGenericVariable((SpecialInt(1), SpecialInt(2), SpecialInt(3)))
def test_tuple_generic_variable_newtype_container() -> None:
@dataclasses.dataclass
class TupleGenericVariable(Generic[ScalarType]):
xyz: Tuple[ScalarType, ...]
SpecialInt = NewType("SpecialInt", Tuple[int])
assert tyro.cli(
TupleGenericVariable[SpecialInt], args=["--xyz", "1", "2", "3"]
) == TupleGenericVariable((SpecialInt((1,)), SpecialInt((2,)), SpecialInt((3,))))
def test_tuple_generic_variable_more_newtype() -> None:
@dataclasses.dataclass
class TupleGenericVariable(Generic[ScalarType]):
xyz: Tuple[ScalarType, ...]
SpecialInt = NewType("SpecialInt", int)
SpecialTuple = NewType("SpecialTuple", TupleGenericVariable[SpecialInt])
assert tyro.cli(SpecialTuple, args=["--xyz", "1", "2", "3"]) == SpecialTuple(
TupleGenericVariable((SpecialInt(1), SpecialInt(2), SpecialInt(3)))
)
def test_tuple_generic_helptext() -> None:
@dataclasses.dataclass
class TupleGenericVariableHelptext(Generic[ScalarType]):
"""Helptext!"""
xyz: Tuple[ScalarType, ...]
f = io.StringIO()
with pytest.raises(SystemExit):
with contextlib.redirect_stdout(f):
tyro.cli(TupleGenericVariableHelptext[int], args=["--help"])
helptext = f.getvalue()
assert "Helptext!" in helptext
def test_tuple_generic_no_helptext() -> None:
@dataclasses.dataclass
class TupleGenericVariableNoHelptext(Generic[ScalarType]):
xyz: Tuple[ScalarType, ...]
f = io.StringIO()
with pytest.raises(SystemExit):
with contextlib.redirect_stdout(f):
tyro.cli(TupleGenericVariableNoHelptext[int], args=["--help"])
helptext = f.getvalue()
assert "Helptext!" not in helptext
# Check that we don't accidentally grab docstrings from the generic alias!
assert "The central part of internal API" not in helptext
def test_tuple_generic_fixed() -> None:
@dataclasses.dataclass
class TupleGenericFixed(Generic[ScalarType]):
xyz: Tuple[ScalarType, ScalarType, ScalarType]
assert tyro.cli(
TupleGenericFixed[int], args=["--xyz", "1", "2", "3"]
) == TupleGenericFixed((1, 2, 3))
class CoordinateFrame(enum.Enum):
WORLD = enum.auto()
CAMERA = enum.auto()
@dataclasses.dataclass
class Point3(Generic[ScalarType]):
x: ScalarType
y: ScalarType
z: ScalarType
frame: CoordinateFrame
def test_simple_generic() -> None:
@dataclasses.dataclass
class SimpleGeneric:
point_continuous: Point3[float]
point_discrete: Point3[int]
parsed_instance = tyro.cli(
SimpleGeneric,
args=[
"--point-continuous.x",
"1.2",
"--point-continuous.y",
"2.2",
"--point-continuous.z",
"3.2",
"--point-continuous.frame",
"WORLD",
"--point-discrete.x",
"1",
"--point-discrete.y",
"2",
"--point-discrete.z",
"3",
"--point-discrete.frame",
"WORLD",
],
)
assert parsed_instance == SimpleGeneric(
Point3(1.2, 2.2, 3.2, CoordinateFrame.WORLD),
Point3(1, 2, 3, CoordinateFrame.WORLD),
)
_check_serialization_identity(SimpleGeneric, parsed_instance)
with pytest.raises(SystemExit):
# Accidentally pass in floats instead of ints for discrete
tyro.cli(
SimpleGeneric,
args=[
"--point-continuous.x",
"1.2",
"--point-continuous.y",
"2.2",
"--point-continuous.z",
"3.2",
"--point-continuous.frame",
"WORLD",
"--point-discrete.x",
"1.5",
"--point-discrete.y",
"2.5",
"--point-discrete.z",
"3.5",
"--point-discrete.frame",
"WORLD",
],
)
def test_multilevel_generic() -> None:
@dataclasses.dataclass
class Triangle(Generic[ScalarType]):
a: Point3[ScalarType]
b: Point3[ScalarType]
c: Point3[ScalarType]
parsed_instance = tyro.cli(
Triangle[float],
args=[
"--a.x",
"1.0",
"--a.y",
"1.2",
"--a.z",
"1.3",
"--a.frame",
"WORLD",
"--b.x",
"1.0",
"--b.y",
"1.2",
"--b.z",
"1.3",
"--b.frame",
"WORLD",
"--c.x",
"1.0",
"--c.y",
"1.2",
"--c.z",
"1.3",
"--c.frame",
"WORLD",
],
)
assert parsed_instance == Triangle(
Point3(1.0, 1.2, 1.3, CoordinateFrame.WORLD),
Point3(1.0, 1.2, 1.3, CoordinateFrame.WORLD),
Point3(1.0, 1.2, 1.3, CoordinateFrame.WORLD),
)
_check_serialization_identity(Triangle[float], parsed_instance)
def test_multilevel_generic_no_helptext() -> None:
@dataclasses.dataclass
class LineSegment(Generic[ScalarType]):
a: Point3[ScalarType]
b: Point3[ScalarType]
f = io.StringIO()
with pytest.raises(SystemExit):
with contextlib.redirect_stdout(f):
tyro.cli(LineSegment[int], args=["--help"])
helptext = f.getvalue()
# Check that we don't accidentally grab docstrings from the generic alias!
assert "The central part of internal API" not in helptext
def test_generic_nested_dataclass() -> None:
@dataclasses.dataclass
class Child:
a: int
b: int
T = TypeVar("T")
@dataclasses.dataclass
class DataclassGeneric(Generic[T]):
child: T
parsed_instance = tyro.cli(
DataclassGeneric[Child], args=["--child.a", "5", "--child.b", "7"]
)
assert parsed_instance == DataclassGeneric(Child(5, 7))
# Local generics will break.
with pytest.raises(yaml.constructor.ConstructorError):
_check_serialization_identity(DataclassGeneric[Child], parsed_instance)
def test_generic_nested_dataclass_helptext() -> None:
@dataclasses.dataclass
class Child:
a: int
b: int
T = TypeVar("T")
@dataclasses.dataclass
class DataclassGeneric(Generic[T]):
child: T
f = io.StringIO()
with pytest.raises(SystemExit):
with contextlib.redirect_stdout(f):
tyro.cli(DataclassGeneric[Child], args=["--help"])
helptext = f.getvalue()
# Check that we don't accidentally grab docstrings from the generic alias!
assert "The central part of internal API" not in helptext
def test_generic_subparsers() -> None:
@dataclasses.dataclass
class CommandOne:
a: int
@dataclasses.dataclass
class CommandTwo:
b: int
T1 = TypeVar("T1")
T2 = TypeVar("T2")
@dataclasses.dataclass
class Subparser(Generic[T1, T2]):
command: T1 | T2
parsed_instance = tyro.cli(
Subparser[CommandOne, CommandTwo],
args="command:command-one --command.a 5".split(" "),
)
# Not supported in mypy.
assert parsed_instance == Subparser(CommandOne(5)) # type: ignore
# Local generics will break.
with pytest.raises(yaml.constructor.ConstructorError):
_check_serialization_identity(
Subparser[CommandOne, CommandTwo], parsed_instance
)
parsed_instance = tyro.cli(
Subparser[CommandOne, CommandTwo],
args="command:command-two --command.b 7".split(" "),
)
# Not supported in mypy.
assert parsed_instance == Subparser(CommandTwo(7)) # type: ignore
# Local generics will break.
with pytest.raises(yaml.constructor.ConstructorError):
_check_serialization_identity(
Subparser[CommandOne, CommandTwo], parsed_instance
)
def test_generic_subparsers_in_container() -> None:
T = TypeVar("T")
@dataclasses.dataclass
class Command(Generic[T]):
a: List[T]
T1 = TypeVar("T1")
T2 = TypeVar("T2")
@dataclasses.dataclass
class Subparser(Generic[T1, T2]):
command: T1 | T2
parsed_instance = tyro.cli(
Subparser[Command[int], Command[float]],
args="command:command-int --command.a 5 3".split(" "),
)
# Not supported in mypy.
assert parsed_instance == Subparser(Command([5, 3])) and isinstance( # type: ignore
parsed_instance.command.a[0], int
)
# Local generics will break.
with pytest.raises(yaml.constructor.ConstructorError):
_check_serialization_identity(
Subparser[Command[int], Command[float]], parsed_instance
)
parsed_instance = tyro.cli(
Subparser[Command[int], Command[float]],
args="command:command-float --command.a 7 2".split(" "),
)
# Not supported in mypy.
assert parsed_instance == Subparser(Command([7.0, 2.0])) and isinstance( # type: ignore
parsed_instance.command.a[0], float
)
# Local generics will break.
with pytest.raises(yaml.constructor.ConstructorError):
_check_serialization_identity(
Subparser[Command[int], Command[float]], parsed_instance
)
def test_serialize_missing() -> None:
@dataclasses.dataclass
class TupleGenericVariableMissing(Generic[ScalarType]):
xyz: Tuple[ScalarType, ...]
x = TupleGenericVariableMissing[int](xyz=(tyro.MISSING, tyro.MISSING))
assert tyro.extras.to_yaml(x).count("!missing") == 2
_check_serialization_identity(TupleGenericVariableMissing[int], x)
assert (
tyro.extras.from_yaml(
TupleGenericVariableMissing[int], tyro.extras.to_yaml(x)
).xyz[0]
is tyro.MISSING
)
def test_generic_inherited_type_narrowing() -> None:
T = TypeVar("T")
@dataclasses.dataclass
class ActualParentClass(Generic[T]):
x: T # Documentation 1
# Documentation 2
y: T
z: T = 3 # type: ignore
"""Documentation 3"""
@dataclasses.dataclass
class ChildClass(ActualParentClass[int]):
a: int = 7
def main(x: ActualParentClass[int] = ChildClass(5, 5)) -> ActualParentClass:
return x
assert tyro.cli(main, args="--x.x 3".split(" ")) == ChildClass(3, 5, 3)
def test_pculbertson() -> None:
# https://github.com/brentyi/tyro/issues/7
@dataclasses.dataclass(frozen=True)
class TypeA:
data: int
@dataclasses.dataclass
class TypeB:
data: int
@dataclasses.dataclass
class Wrapper:
subclass: TypeA | TypeB = TypeA(1)
wrapper1 = Wrapper() # Create Wrapper object.
assert wrapper1 == tyro.extras.from_yaml(Wrapper, tyro.extras.to_yaml(wrapper1))
def test_annotated() -> None:
# https://github.com/brentyi/tyro/issues/7
@dataclasses.dataclass(frozen=True)
class TypeA:
data: int
@dataclasses.dataclass
class Wrapper:
subclass: Annotated[TypeA, int] = TypeA(1)
wrapper1 = Wrapper() # Create Wrapper object.
assert wrapper1 == tyro.extras.from_yaml(Wrapper, tyro.extras.to_yaml(wrapper1))
@dataclasses.dataclass
class TypeA:
data: int
@dataclasses.dataclass
class TypeASubclass(TypeA):
pass
@dataclasses.dataclass
class Wrapper:
subclass: TypeA
def test_superclass() -> None:
# https://github.com/brentyi/tyro/issues/7
wrapper1 = Wrapper(TypeASubclass(3)) # Create Wrapper object.
assert wrapper1 == tyro.extras.from_yaml(Wrapper, tyro.extras.to_yaml(wrapper1))