Fix test cases to eliminate extra warnings

pyproject.toml

@@ -198,3 +198,4 @@ markers = [
     "pypi: Tests that connect to the real PyPI",
     "integration: Run with all Python versions"
 ]
+addopts = "-ra"

tests/conftest.py

@@ -5,7 +5,6 @@
 import re
 import shutil
 import sys
-from distutils.dir_util import copy_tree
 from io import BytesIO
 from pathlib import Path
 from typing import Callable, Iterable, List, Tuple
@@ -108,8 +107,6 @@ def _get_dependencies_from_fixture(
         except KeyError:
             raise CandidateInfoNotFound(candidate)
         deps = pypi_data.get("dependencies", [])
-        for extra in candidate.req.extras or ():
-            deps.extend(pypi_data.get("extras_require", {}).get(extra, []))
         deps = filter_requirements_with_extras(deps, candidate.req.extras or ())
         return deps, pypi_data.get("requires_python", ""), ""
 
@@ -269,13 +266,23 @@ def project(project_no_init):
     return project_no_init
 
 
+def copytree(src: Path, dst: Path) -> None:
+    if not dst.exists():
+        dst.mkdir(parents=True)
+    for subpath in src.iterdir():
+        if subpath.is_dir():
+            copytree(subpath, dst / subpath.name)
+        else:
+            shutil.copy2(subpath, dst)
+
+
 @pytest.fixture()
 def fixture_project(project_no_init):
     """Initailize a project from a fixture project"""
 
     def func(project_name):
         source = FIXTURES / "projects" / project_name
-        copy_tree(source.as_posix(), project_no_init.root.as_posix())
+        copytree(source, project_no_init.root)
         project_no_init._pyproject = None
         return project_no_init
 

tests/fixtures/pypi.json

@@ -5,24 +5,20 @@
         "certifi>=2017.4.17",
         "chardet<3.1.0,>=3.0.2",
         "idna<2.8,>=2.5",
-        "urllib3<1.24,>=1.21.1"
-      ],
-      "extras_require": {
-        "socks": ["PySocks>=1.5.6,!=1.5.7"],
-        "security": ["pyOpenSSL>=0.14"]
-      }
+        "urllib3<1.24,>=1.21.1",
+        "PySocks>=1.5.6,!=1.5.7; extra=='socks'",
+        "pyOpenSSL>=0.14; extra=='security'"
+      ]
     },
     "2.20.0b1": {
       "dependencies": [
         "certifi>=2017.4.17",
         "chardet<3.1.0,>=3.0.2",
         "idna<2.8,>=2.5",
-        "urllib3<1.24,>=1.23b0"
-      ],
-      "extras_require": {
-        "socks": ["PySocks>=1.5.6,!=1.5.7"],
-        "security": ["pyOpenSSL>=0.14"]
-      }
+        "urllib3<1.24,>=1.23b0",
+        "PySocks>=1.5.6,!=1.5.7; extra=='socks'",
+        "pyOpenSSL>=0.14; extra=='security'"
+      ]
     }
   },
   "urllib3": { "1.22": {}, "1.23b0": {} },
@@ -45,11 +41,12 @@
   "demo": {
     "0.0.1": {
       "requires_python": ">=3.3",
-      "dependencies": ["idna", "chardet; os_name=='nt'"],
-      "extras_require": {
-        "tests": ["pytest"],
-        "security": ["requests; python_version>='3.6'"]
-      }
+      "dependencies": [
+        "idna",
+        "chardet; os_name=='nt'",
+        "pytest; extra=='tests'",
+        "requests; python_version>='3.6' and extra=='security'"
+      ]
     }
   },
   "django-toolbar": {