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424 lines
13 KiB
Python
424 lines
13 KiB
Python
from dataclasses import dataclass, field
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from typing import NamedTuple
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from django.template import Context
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from django_components import Component, Default, get_component_defaults
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from django_components.testing import djc_test
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from .testutils import setup_test_config
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setup_test_config()
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@djc_test
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class TestComponentDefaults:
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def test_input_defaults(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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class Defaults:
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variable = "test"
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another = 1
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extra = "extra"
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fn = lambda: "fn_as_val" # noqa: E731
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert kwargs == {
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"variable": "test", # User-given
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"another": 1, # Default because missing
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"extra": "extra", # Default because `None` was given
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"fn": self.Defaults.fn, # Default because missing
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}
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assert self.raw_kwargs == {
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"variable": "test", # User-given
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"another": 1, # Default because missing
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"extra": "extra", # Default because `None` was given
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"fn": self.Defaults.fn, # Default because missing
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}
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# Check that args and slots are NOT affected by the defaults
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assert args == [123]
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assert [*slots.keys()] == ["my_slot"]
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assert slots["my_slot"](Context(), None, None) == "MY_SLOT" # type: ignore[arg-type]
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assert self.raw_args == [123]
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assert [*self.raw_slots.keys()] == ["my_slot"]
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assert self.raw_slots["my_slot"](Context(), None, None) == "MY_SLOT" # type: ignore[arg-type]
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assert isinstance(self.context, Context)
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return {
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"variable": kwargs["variable"],
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}
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TestComponent.render(
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args=(123,),
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kwargs={"variable": "test", "extra": None},
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slots={"my_slot": "MY_SLOT"},
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)
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assert did_call_context
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def test_factory_from_class(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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class Defaults:
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variable = "test"
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fn = Default(lambda: "fn_as_factory")
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert kwargs == {
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"variable": "test", # User-given
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"fn": "fn_as_factory", # Default because missing
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}
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assert self.raw_kwargs == {
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"variable": "test", # User-given
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"fn": "fn_as_factory", # Default because missing
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}
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assert isinstance(self.context, Context)
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return {
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"variable": kwargs["variable"],
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}
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TestComponent.render(
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kwargs={"variable": "test"},
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)
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assert did_call_context
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def test_factory_from_dataclass_field_value(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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class Defaults:
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variable = "test"
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fn = field(default=lambda: "fn_as_factory")
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert kwargs == {
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"variable": "test", # User-given
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# NOTE: NOT a factory, because it was set as `field(default=...)`
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"fn": self.Defaults.fn.default, # type: ignore[attr-defined]
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}
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assert self.raw_kwargs == {
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"variable": "test", # User-given
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# NOTE: NOT a factory, because it was set as `field(default=...)`
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"fn": self.Defaults.fn.default, # type: ignore[attr-defined]
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}
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assert isinstance(self.context, Context)
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return {
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"variable": kwargs["variable"],
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}
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TestComponent.render(
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kwargs={"variable": "test"},
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)
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assert did_call_context
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def test_factory_from_dataclass_field_factory(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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class Defaults:
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variable = "test"
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fn = field(default_factory=lambda: "fn_as_factory")
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert kwargs == {
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"variable": "test", # User-given
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# NOTE: IS a factory, because it was set as `field(default_factory=...)`
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"fn": "fn_as_factory", # Default because missing
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}
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assert self.raw_kwargs == {
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"variable": "test", # User-given
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# NOTE: IS a factory, because it was set as `field(default_factory=...)`
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"fn": "fn_as_factory", # Default because missing
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}
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assert isinstance(self.context, Context)
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return {
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"variable": kwargs["variable"],
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}
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TestComponent.render(
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kwargs={"variable": "test"},
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)
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assert did_call_context
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def test_defaults_from_kwargs_namedtuple(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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class Kwargs(NamedTuple):
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another: int
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variable: str = "default_from_kwargs"
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert self.raw_kwargs == {
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"variable": "default_from_kwargs",
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"another": 123,
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}
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return {}
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TestComponent.render(
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kwargs={"another": 123},
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)
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assert did_call_context
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def test_defaults_from_kwargs_dataclass(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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@dataclass
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class Kwargs:
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another: int
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variable: str = "default_from_kwargs"
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert self.raw_kwargs == {
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"variable": "default_from_kwargs",
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"another": 123,
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}
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return {}
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TestComponent.render(
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kwargs={"another": 123},
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)
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assert did_call_context
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def test_defaults_from_kwargs_other_class(self):
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did_call_context = False
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class CustomKwargs:
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def __init__(self, **kwargs):
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for key, value in kwargs.items():
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setattr(self, key, value)
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self._kwargs = kwargs
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def _asdict(self):
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return self._kwargs
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class TestComponent(Component):
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template = ""
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class Kwargs(CustomKwargs):
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another: int
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variable: str = "default_from_kwargs"
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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# No defaults should be applied from a plain class
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assert self.raw_kwargs == {
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"another": 123,
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}
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return {}
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TestComponent.render(
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kwargs={"another": 123},
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)
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assert did_call_context
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def test_defaults_from_defaults_and_kwargs_namedtuple(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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class Kwargs(NamedTuple):
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from_defaults_only: str
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variable: str = "from_kwargs"
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from_kwargs_only: str = "kwargs_default"
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class Defaults:
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variable = "from_defaults"
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from_defaults_only = "defaults_default"
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert self.raw_kwargs == {
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"variable": "from_kwargs", # Overridden by Kwargs
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"from_defaults_only": "defaults_default",
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"from_kwargs_only": "kwargs_default",
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}
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return {}
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TestComponent.render(kwargs={})
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assert did_call_context
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def test_defaults_from_defaults_and_kwargs_dataclass(self):
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did_call_context = False
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class TestComponent(Component):
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template = ""
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@dataclass
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class Kwargs:
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from_defaults_only: str
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variable: str = "from_kwargs"
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from_kwargs_only: str = "kwargs_default"
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class Defaults:
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variable = "from_defaults"
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from_defaults_only = "defaults_default"
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert self.raw_kwargs == {
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"variable": "from_kwargs", # Overridden by Kwargs
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"from_defaults_only": "defaults_default",
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"from_kwargs_only": "kwargs_default",
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}
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return {}
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TestComponent.render(kwargs={})
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assert did_call_context
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def test_defaults_from_defaults_and_kwargs_other_class(self):
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did_call_context = False
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class CustomKwargs:
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def __init__(self, **kwargs):
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for key, value in kwargs.items():
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setattr(self, key, value)
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self._kwargs = kwargs
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def _asdict(self):
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return self._kwargs
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class TestComponent(Component):
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template = ""
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class Kwargs(CustomKwargs):
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variable: str = "from_kwargs"
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class Defaults:
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variable = "from_defaults"
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from_defaults_only = "defaults_default"
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def get_template_data(self, args, kwargs, slots, context):
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nonlocal did_call_context
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did_call_context = True
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assert self.raw_kwargs == {
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"variable": "from_defaults", # No override
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"from_defaults_only": "defaults_default",
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}
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return {}
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TestComponent.render(kwargs={})
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assert did_call_context
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@djc_test
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class TestGetComponentDefaults:
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def test_defaults_with_factory(self):
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class MyComponent(Component):
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template = ""
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class Defaults:
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val = "static"
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factory_val = Default(lambda: "from_factory")
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defaults = get_component_defaults(MyComponent)
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assert defaults == {
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"val": "static",
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"factory_val": "from_factory",
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}
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def test_kwargs_dataclass_with_factory(self):
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class MyComponent(Component):
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template = ""
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@dataclass
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class Kwargs:
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val: str = "static"
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factory_val: str = field(default_factory=lambda: "from_factory")
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defaults = get_component_defaults(MyComponent)
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assert defaults == {
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"val": "static",
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"factory_val": "from_factory",
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}
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def test_defaults_and_kwargs_overrides_with_factories(self):
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class MyComponent(Component):
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template = ""
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@dataclass
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class Kwargs:
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val_both: str = field(default_factory=lambda: "from_kwargs_factory")
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val_kwargs: str = field(default_factory=lambda: "kwargs_only")
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class Defaults:
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val_both = Default(lambda: "from_defaults_factory")
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val_defaults = Default(lambda: "defaults_only")
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defaults = get_component_defaults(MyComponent)
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assert defaults == {
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"val_both": "from_kwargs_factory",
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"val_kwargs": "kwargs_only",
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"val_defaults": "defaults_only",
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}
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def test_kwargs_namedtuple_with_defaults(self):
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class MyComponent(Component):
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template = ""
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class Kwargs(NamedTuple):
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val_no_default: int
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val_defaults: str
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val_kwargs: str = "kwargs_default"
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class Defaults:
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val_defaults = "defaults_default"
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defaults = get_component_defaults(component=MyComponent)
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assert defaults == {
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"val_kwargs": "kwargs_default",
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"val_defaults": "defaults_default",
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}
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