Fixes test collection

Author: sobolevn

docs/conftest.py

@@ -0,0 +1,30 @@
+import sys
+from pathlib import Path
+from types import MappingProxyType
+
+from typing_extensions import Final
+
+PYTHON_VERSION: Final = (sys.version_info.major, sys.version_info.minor)
+ENABLE_SINCE: Final = MappingProxyType({
+    (3, 8): frozenset((
+        Path('docs/pages/concept.rst'),
+    )),
+})
+PATHS_TO_IGNORE_NOW: Final = frozenset(
+    path.absolute()
+    for since_python, to_ignore in ENABLE_SINCE.items()
+    for path in to_ignore
+    if PYTHON_VERSION < since_python
+)
+
+
+# TODO: remove after `phantom-types` release with `python3.7` support
+def pytest_collection_modifyitems(items) -> None:  # noqa: WPS110
+    """Conditionally removes some collected docstests."""
+    to_ignore_items = []
+    for test_item in items:
+        if Path(test_item.dtest.filename) in PATHS_TO_IGNORE_NOW:
+            to_ignore_items.append(test_item)
+
+    for to_ignore in to_ignore_items:
+        items.remove(to_ignore)

tests/conftest.py

@@ -1,42 +1,8 @@
-import sys
 from contextlib import contextmanager
-from pathlib import Path
-from types import MappingProxyType
-from typing import Callable, ContextManager, Iterator, Optional
-
-import pytest
-from _pytest.config import Config
-from py import path as pypath
-from typing_extensions import Final
+from typing import Callable, ContextManager, Iterator
 
 from classes._typeclass import _TypeClass  # noqa: WPS450
 
-PYTHON_VERSION: Final = (sys.version_info.major, sys.version_info.minor)
-ENABLE_SINCE: Final = MappingProxyType({
-    (3, 8): frozenset((
-        Path('docs/pages/concept.rst'),
-    )),
-})
-PATHS_TO_IGNORE_NOW: Final = frozenset(
-    path.absolute()
-    for since_python, to_ignore in ENABLE_SINCE.items()
-    for path in to_ignore
-    if PYTHON_VERSION < since_python
-)
-
-
-def pytest_ignore_collect(
-    path: pypath.local,
-    config: Config,
-) -> Optional[bool]:
-    """
-    Returns ``True`` to prevent considering this path for collection.
-
-    This hook is consulted for all files and directories prior to calling
-    more specific hooks. Stops at first non-None result.
-    """
-    return Path(path) in PATHS_TO_IGNORE_NOW
-
 
 @pytest.fixture(scope='session')
 def clear_cache() -> Callable[[_TypeClass], ContextManager]: