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- Compatibility with older Python versions - use `Optional` and `Union` instead of `... | None` and `a | b` - use `typing_extensions.Protocol` instead of `typing.Protocol` - use `typing.Dict`, `typing.List`, etc. instead of the concrete types. - Fix backend `.get()` annotations; not all were marked as `Optional[str]` - Don't return anything from `Backend.set()` methods. - The `Coder.decode_as_type()` type parameter must be a type to be compatible with `ModelField(..., type_=...)`. - Clean up `Optional[]` use, remove where it is not needed. - Clean up variable use in decorator, keeping the raw cached value separate from the return value from the wrapped endpoint. - Annotate the wrapper as returning either the original type _or_ a Response (returning a 304 Not Modified response). - Clean up small edge-case where `response` could be `None`. - Correct type annotation on `JsonCoder.decode()` to match `Coder.decode()`.
67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
from dataclasses import dataclass
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from typing import Any, Optional, Tuple
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import pytest
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from pydantic import BaseModel, ValidationError
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from fastapi_cache.coder import JsonCoder, PickleCoder
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@dataclass
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class DCItem:
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name: str
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price: float
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description: Optional[str] = None
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tax: Optional[float] = None
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class PDItem(BaseModel):
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name: str
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price: float
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description: Optional[str] = None
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tax: Optional[float] = None
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@pytest.mark.parametrize(
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"value",
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[
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1,
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"some_string",
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(1, 2),
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[1, 2, 3],
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{"some_key": 1, "other_key": 2},
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DCItem(name="foo", price=42.0, description="some dataclass item", tax=0.2),
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PDItem(name="foo", price=42.0, description="some pydantic item", tax=0.2),
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],
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)
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def test_pickle_coder(value: Any) -> None:
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encoded_value = PickleCoder.encode(value)
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assert isinstance(encoded_value, bytes)
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decoded_value = PickleCoder.decode(encoded_value)
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assert decoded_value == value
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@pytest.mark.parametrize(
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("value", "return_type"),
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[
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(1, None),
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("some_string", None),
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((1, 2), Tuple[int, int]),
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([1, 2, 3], None),
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({"some_key": 1, "other_key": 2}, None),
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(DCItem(name="foo", price=42.0, description="some dataclass item", tax=0.2), DCItem),
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(PDItem(name="foo", price=42.0, description="some pydantic item", tax=0.2), PDItem),
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],
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)
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def test_json_coder(value: Any, return_type) -> None:
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encoded_value = JsonCoder.encode(value)
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assert isinstance(encoded_value, bytes)
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decoded_value = JsonCoder.decode_as_type(encoded_value, type_=return_type)
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assert decoded_value == value
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def test_json_coder_validation_error() -> None:
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invalid = b'{"name": "incomplete"}'
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with pytest.raises(ValidationError):
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JsonCoder.decode_as_type(invalid, type_=PDItem)
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