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|
# --------------------------------------------------------------------------------------
# Copyright (c) 2022-2024, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file LICENSE, distributed with this software.
# --------------------------------------------------------------------------------------
from datetime import datetime
import pytest
from atom.api import Atom, Bool, Constant, Float, GetState, Int, List, Range, Str, Typed
try:
import pytest_benchmark # noqa: F401
BENCHMARK_INSTALLED = True
except ImportError:
BENCHMARK_INSTALLED = False
class AtomBase(Atom):
def __getstate_py__(self):
state = {}
state.update(getattr(self, "__dict__", {}))
for name in self.__class__.__slotnames__:
state[name] = getattr(self, name)
for key in self.members():
state[key] = getattr(self, key)
return state
def __setstate_py__(self, state):
for key, value in state.items():
setattr(self, key, value)
def test_getstate_member_slots_error():
class Test(Atom):
__slots__ = ("a", "b")
Test.__slotnames__ = None
v = Test()
with pytest.raises(SystemError):
v.__getstate__()
def test_getstate_member_error():
class Test(Atom):
created = Typed(datetime, optional=False)
Test.created.set_getstate_mode(GetState.Include, None)
v = Test()
with pytest.raises(ValueError):
v.__getstate__()
def test_getstate():
class Test(Atom):
x = Int(3)
y = Int(2)
t = Test()
assert t.__getstate__() == {"x": 3, "y": 2}
def test_getstate_constant():
class Test(Atom):
x = Int(3)
y = Int(2)
z = Constant(4)
t = Test()
assert "z" not in t.__getstate__()
def test_getstate_frozen():
class Test(Atom):
x = Int(3)
y = Int(2)
t = Test()
t.freeze()
assert t.__getstate__() == {"x": 3, "y": 2, "--frozen": None}
def test_setstate_frozen():
class Test(Atom):
x = Int(3)
y = Int(2)
t = Test()
t.__setstate__({"x": 3, "y": 2, "--frozen": None})
with pytest.raises(AttributeError):
t.x = 5
# Setting again does not work
t.__setstate__({"--frozen": 0})
with pytest.raises(AttributeError):
t.x = 5
# Check that it can be modified if frozen flag is missing
t = Test()
t.__setstate__({"x": 3, "y": 2})
t.x = 5
def test_setstate_non_str_key():
class Test(Atom):
x = Int(3)
y = Int(2)
t = Test()
with pytest.raises(TypeError):
t.__setstate__({0: "yes"})
class Foo:
def __eq__(self, other):
raise ValueError("Do not compare me")
with pytest.raises(TypeError):
t.__setstate__({Foo(): "yes"})
@pytest.mark.skipif(not BENCHMARK_INSTALLED, reason="benchmark is not installed")
@pytest.mark.benchmark(group="getstate")
@pytest.mark.parametrize("fn", ("c", "py"))
def test_bench_getstate(benchmark, fn):
class Test(AtomBase):
first_name = Str("First")
last_name = Str("Last")
age = Range(low=0)
debug = Bool(False)
items = List(default=[1, 2, 3])
expected = {
"first_name": "First",
"last_name": "Last",
"age": 0,
"debug": False,
"items": [1, 2, 3],
}
p = Test()
if fn == "py":
func = p.__getstate_py__
else:
func = p.__getstate__
def task():
assert func() == expected
benchmark(task)
@pytest.mark.skipif(not BENCHMARK_INSTALLED, reason="benchmark is not installed")
@pytest.mark.benchmark(group="loopback")
@pytest.mark.parametrize("fn", ("c", "py"))
def test_bench_loopback(benchmark, fn):
class Test(AtomBase):
first_name = Str("First")
last_name = Str("Last")
age = Range(low=0)
debug = Bool(False)
items = List(default=[1, 2, 3])
expected = {
"first_name": "First",
"last_name": "Last",
"age": 0,
"debug": False,
"items": [1, 2, 3],
}
if fn == "py":
def task():
t = Test()
t.__setstate_py__(expected)
assert t.__getstate_py__() == expected
else:
def task():
t = Test()
t.__setstate__(expected)
assert t.__getstate__() == expected
benchmark(task)
@pytest.mark.skipif(not BENCHMARK_INSTALLED, reason="benchmark is not installed")
@pytest.mark.benchmark(group="getstate-dict")
@pytest.mark.parametrize("fn", ("c", "py"))
def test_bench_getstate_dict(benchmark, fn):
class Foo:
def __init__(self):
self.count = 1
class Test(AtomBase, Foo):
title = Str("Title")
enabled = Bool(True)
category = Str("Main")
tags = List(default=["foo", "bar"])
expected = {
"count": 1,
"title": "Title",
"enabled": True,
"category": "Main",
"tags": ["foo", "bar"],
}
p = Test()
p.count = 1
if fn == "py":
func = p.__getstate_py__
else:
func = p.__getstate__
def task():
assert func() == expected
benchmark(task)
@pytest.mark.skipif(not BENCHMARK_INSTALLED, reason="benchmark is not installed")
@pytest.mark.benchmark(group="getstate-slots")
@pytest.mark.parametrize("fn", ("c", "py"))
def test_bench_getstate_slots(benchmark, fn):
class Test(AtomBase):
__slots__ = ("bar", "foo")
name = Str("Name")
enabled = Bool(True)
rating = Float()
created = Typed(datetime)
tags = List(default=["foo", "bar"])
now = datetime.now()
expected = {
"foo": 1,
"bar": True,
"name": "Name",
"enabled": True,
"rating": 0.0,
"created": now,
"tags": ["foo", "bar"],
}
p = Test()
p.foo = 1
p.bar = True
p.created = now
if fn == "py":
func = p.__getstate_py__
else:
func = p.__getstate__
def task():
assert func() == expected
benchmark(task)
@pytest.mark.skipif(not BENCHMARK_INSTALLED, reason="benchmark is not installed")
@pytest.mark.benchmark(group="state")
@pytest.mark.parametrize("fn", ("c", "py"))
def test_bench_setstate(benchmark, fn):
class Test(AtomBase):
x = Int()
y = Int()
if fn == "py":
def task():
t = Test()
t.__setstate_py__({"x": 1, "y": 2})
assert t.x == 1
assert t.y == 2
else:
def task():
t = Test()
t.__setstate__({"x": 1, "y": 2})
assert t.x == 1
assert t.y == 2
benchmark(task)
def test_setstate():
class Test(Atom):
x = Int()
y = Int()
t = Test()
t.__setstate__({"x": 1, "y": 2})
assert t.x == 1
assert t.y == 2
def test_setstate_errors(caplog):
class Test(AtomBase):
x = Int()
y = Int()
t = Test()
with pytest.raises(TypeError):
t.__setstate__() # Incorrect number of args
with pytest.raises(TypeError):
t.__setstate__({}, False) # Incorrect number of args
with pytest.raises(TypeError):
t.__setstate__(None) # Not a mapping (no items() method)
with pytest.raises(TypeError):
t.__setstate__(["z"]) # Not a mapping (has no items() method)
with pytest.raises(AttributeError):
t.__setstate__({"z": 3}) # Invalid attribute
|
