Replace request.param fixture selection with typed parameters

conftest.py

@@ -2,10 +2,11 @@
 
 from __future__ import annotations
 
+import io
 import uuid
+from collections.abc import Generator
 from doctest import ELLIPSIS
 from pathlib import Path
-from typing import TYPE_CHECKING
 
 import pytest
 from mock_vws import MockVWS
@@ -17,10 +18,6 @@
     PythonCodeBlockParser,
 )
 
-if TYPE_CHECKING:
-    import io
-    from collections.abc import Generator
-
 
 @pytest.fixture(name="make_image_file")
 def fixture_make_image_file(

pyproject.toml

@@ -165,7 +165,12 @@ lint.flake8-tidy-imports.banned-api."operator.attrgetter".msg = "operator.attrge
 lint.flake8-tidy-imports.banned-api."typing.cast".msg = """\
     typing.cast is banned: use explicit type narrowing or a typed variable instead.\
     """
-lint.flake8-type-checking.runtime-evaluated-decorators = [ "beartype.beartype" ]
+# pytest-beartype evaluates fixture annotations at runtime.
+lint.flake8-type-checking.runtime-evaluated-decorators = [
+    "beartype.beartype",
+    "pytest.fixture",
+    "pytest_asyncio.fixture",
+]
 lint.pydocstyle.convention = "google"
 lint.preview = true
 

tests/async_vws/test_configuration.py

@@ -2,25 +2,34 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, BinaryIO
+from typing import TYPE_CHECKING, BinaryIO, Literal
 
 import pytest
 from mock_vws import MockVWS
 from mock_vws.database import CloudDatabase
 
+from tests.image_factory import IMAGE_CASES, ImageFactory
 from vws import AsyncVWS
 
 if TYPE_CHECKING:
     import io
 
 
 @pytest.mark.asyncio
+@pytest.mark.parametrize(
+    argnames=("image_source", "image_mode"), argvalues=IMAGE_CASES
+)
 async def test_custom_base_url(
-    image: io.BytesIO | BinaryIO,
+    image_factory: ImageFactory,
+    image_source: Literal["high_quality_image", "image_file"],
+    image_mode: Literal["r+b", "rb"],
 ) -> None:
     """It is possible to add a target to a database under a
     custom VWS URL.
     """
+    image: io.BytesIO | BinaryIO = image_factory.create(
+        source=image_source, mode=image_mode
+    )
     base_vws_url = "http://example.com"
     with MockVWS(base_vws_url=base_vws_url) as mock:
         database = CloudDatabase()

tests/async_vws/test_processing.py

@@ -2,12 +2,13 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, BinaryIO
+from typing import TYPE_CHECKING, BinaryIO, Literal
 
 import pytest
 from mock_vws import MockVWS
 from mock_vws.database import CloudDatabase
 
+from tests.image_factory import IMAGE_CASES, ImageFactory
 from vws import AsyncVWS
 from vws.exceptions.custom_exceptions import (
     TargetProcessingTimeoutError,
@@ -21,12 +22,20 @@
 
 
 @pytest.mark.asyncio
+@pytest.mark.parametrize(
+    argnames=("image_source", "image_mode"), argvalues=IMAGE_CASES
+)
 async def test_wait_for_target_processed(
     *,
     async_vws_client: AsyncVWS,
-    image: io.BytesIO | BinaryIO,
+    image_factory: ImageFactory,
+    image_source: Literal["high_quality_image", "image_file"],
+    image_mode: Literal["r+b", "rb"],
 ) -> None:
     """It is possible to wait until a target is processed."""
+    image: io.BytesIO | BinaryIO = image_factory.create(
+        source=image_source, mode=image_mode
+    )
     target_id = await async_vws_client.add_target(
         name="x",
         width=1,
@@ -48,10 +57,18 @@ async def test_wait_for_target_processed(
 
 
 @pytest.mark.asyncio
+@pytest.mark.parametrize(
+    argnames=("image_source", "image_mode"), argvalues=IMAGE_CASES
+)
 async def test_custom_timeout(
-    image: io.BytesIO | BinaryIO,
+    image_factory: ImageFactory,
+    image_source: Literal["high_quality_image", "image_file"],
+    image_mode: Literal["r+b", "rb"],
 ) -> None:
     """It is possible to set a maximum timeout."""
+    image: io.BytesIO | BinaryIO = image_factory.create(
+        source=image_source, mode=image_mode
+    )
     with MockVWS(processing_time_seconds=0.5) as mock:
         database = CloudDatabase()
         mock.add_cloud_database(cloud_database=database)

tests/async_vws/test_reports.py

@@ -3,15 +3,17 @@
 from __future__ import annotations
 
 import calendar
+import datetime
 import time
 import uuid
 from http import HTTPStatus
-from typing import TYPE_CHECKING, BinaryIO
+from typing import TYPE_CHECKING, BinaryIO, Literal
 
 import pytest
 from mock_vws import MockVWS
 from mock_vws.database import CloudDatabase
 
+from tests.image_factory import IMAGE_CASES, ImageFactory
 from vws import AsyncVWS
 from vws.exceptions.custom_exceptions import (
     DatabaseIdNotSetError,
@@ -29,7 +31,6 @@
 from vws.response import Response
 
 if TYPE_CHECKING:
-    import datetime
     import io
 
 
@@ -65,14 +66,22 @@ async def __call__(
 
 
 @pytest.mark.asyncio
+@pytest.mark.parametrize(
+    argnames=("image_source", "image_mode"), argvalues=IMAGE_CASES
+)
 async def test_get_target_summary_report(
     *,
     async_vws_client: AsyncVWS,
-    image: io.BytesIO | BinaryIO,
+    image_factory: ImageFactory,
+    image_source: Literal["high_quality_image", "image_file"],
+    image_mode: Literal["r+b", "rb"],
 ) -> None:
     """Details of a target are returned by
     ``get_target_summary_report``.
     """
+    image: io.BytesIO | BinaryIO = image_factory.create(
+        source=image_source, mode=image_mode
+    )
     target_name = uuid.uuid4().hex
     target_id = await async_vws_client.add_target(
         name=target_name,
@@ -105,12 +114,21 @@ async def test_get_target(
 
 
 @pytest.mark.asyncio
+@pytest.mark.parametrize(
+    argnames="report_period", argvalues=["current", "previous"]
+)
 async def test_reco_counts_report(
     *,
     async_vws_client: AsyncVWS,
-    report_month: datetime.date,
+    current_month: datetime.date,
+    report_period: Literal["current", "previous"],
 ) -> None:
     """A report can be requested, waited for and downloaded."""
+    report_month = (
+        current_month
+        if report_period == "current"
+        else current_month - datetime.timedelta(days=1)
+    )
     client = async_vws_client
     report_request = await client.request_database_reco_counts_report(
         year=report_month.year,