adds test for cross index dependencies

pyproject.toml

@@ -2,31 +2,6 @@
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
 
-[tool.black]
-line-length = 90
-include = '\.pyi?$'
-exclude = '''
-/(
-    \.eggs
-  | \.git
-  | \.github
-  | \.hg
-  | \.mypy_cache
-  | \.tox
-  | \.pyre_configuration
-  | \.venv
-  | _build
-  | buck-out
-  | build
-  | dist
-  | pipenv/vendor
-  | pipenv/patched
-  | tests/pypi
-  | tests/test_artifacts
-  | get-pipenv.py
-  | pyproject.toml
-)
-'''
 
 [tool.mypy]
 ignore_missing_imports = true
@@ -35,32 +10,6 @@ html_report = "mypyhtml"
 python_version = "3.7"
 mypy_path = "typeshed/pyi:typeshed/imports"
 
-[tool.pytest.ini_options]
-addopts = "-ra"
-plugins = "xdist"
-testpaths = ["tests"]
-# Add vendor and patched in addition to the default list of ignored dirs
-# Additionally, ignore tasks, news, test subdirectories and peeps directory
-norecursedirs = [
-    ".*", "build",
-    "dist",
-    "CVS",
-    "_darcs",
-    "{arch}",
-    "*.egg",
-    "vendor",
-    "patched",
-    "news",
-    "tasks",
-    "docs",
-    "tests/test_artifacts",
-    "tests/pypi",
-    "peeps",
-]
-filterwarnings = [
-    "ignore::DeprecationWarning",
-    "ignore::PendingDeprecationWarning",
-]
 # These are not all the custom markers, but most of the ones with repeat uses
 # `pipenv run pytest --markers` will list all markers inlcuding these
 markers = [
@@ -90,35 +39,6 @@ markers = [
     "ext: extra non-categorized tests",
 ]
 
-[tool.ruff]
-exclude = [
-    "pipenv/patched/*",
-    "pipenv/vendor/*",
-]
-select = [
-    "B",
-    "C9",
-    "E",
-    "F",
-    "G",
-    "I",
-    "ISC",
-    "PIE",
-    "PL",
-    "TID",
-    "W",
-    "YTT"
-]
-ignore = [
-    "B028",
-    "B904",
-    "PIE790",
-    "PLR2004",
-    "PLR5501",
-    "PLW2901",
-]
-line-length = 137
-target-version = "py37"
 
 [tool.ruff.mccabe]
 max-complexity = 32

tests/fixtures/private-package-a/pyproject.toml

@@ -0,0 +1,2 @@
+[build-system]
+requires = ["setuptools>=30.3.0", "wheel", "setuptools_scm>=3.3.1"]

tests/fixtures/private-package-a/setup.py

@@ -0,0 +1,44 @@
+import ast
+import os
+
+from setuptools import setup, find_packages
+
+ROOT = os.path.dirname(__file__)
+
+PACKAGE_NAME = "private_package_a"
+
+VERSION = None
+
+with open(os.path.join(ROOT, "src", PACKAGE_NAME.replace("-", "_"), "__init__.py")) as f:
+    for line in f:
+        if line.startswith("__version__ = "):
+            VERSION = ast.literal_eval(line[len("__version__ = ") :].strip())
+            break
+if VERSION is None:
+    raise OSError("failed to read version")
+
+setup(
+    name=PACKAGE_NAME,
+    # These really don't work.
+    package_dir={"": "src"},
+    packages=find_packages("src"),
+    # I don't know how to specify an empty key in setup.cfg.
+    package_data={
+        "": ["LICENSE*", "README*"],
+    },
+    install_requires=[
+        "six>=0.0.1",
+        "private-package-b>=0.0.1",
+    ],
+    description="A fake python package.",
+    author="Dan Ryan",
+    author_email="[email protected]",
+    url="https://github.com/sarugaku/legacy_backend_package",
+    classifiers=[
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python",
+    ],
+    setup_requires=["setuptools-git-versioning"],
+)

tests/fixtures/private-package-a/src/private_package_a/__init__.py

@@ -0,0 +1 @@
+__version__ = "0.0.1"

tests/fixtures/private-package-b/pyproject.toml

@@ -0,0 +1,2 @@
+[build-system]
+requires = ["setuptools>=30.3.0", "wheel", "setuptools_scm>=3.3.1"]

tests/fixtures/private-package-b/setup.py

@@ -0,0 +1,41 @@
+import ast
+import os
+
+from setuptools import setup, find_packages
+
+ROOT = os.path.dirname(__file__)
+
+PACKAGE_NAME = "private_package_b"
+
+VERSION = None
+
+with open(os.path.join(ROOT, "src", PACKAGE_NAME.replace("-", "_"), "__init__.py")) as f:
+    for line in f:
+        if line.startswith("__version__ = "):
+            VERSION = ast.literal_eval(line[len("__version__ = ") :].strip())
+            break
+if VERSION is None:
+    raise OSError("failed to read version")
+
+setup(
+    name=PACKAGE_NAME,
+    # These really don't work.
+    package_dir={"": "src"},
+    packages=find_packages("src"),
+    # I don't know how to specify an empty key in setup.cfg.
+    package_data={
+        "": ["LICENSE*", "README*"],
+    },
+    install_requires=[],
+    description="A fake python package.",
+    author="Dan Ryan",
+    author_email="[email protected]",
+    url="https://github.com/sarugaku/legacy_backend_package",
+    classifiers=[
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python",
+    ],
+    setup_requires=["setuptools-git-versioning"],
+)

tests/fixtures/private-package-b/src/private_package_a/__init__.py

@@ -0,0 +1 @@
+__version__ = "0.0.1"