Inline the symlink setup.

Author: jaraco

tests/fixtures.py

@@ -169,32 +169,6 @@ def setUp(self):
         build_files(DistInfoPkg.files, self.site_dir)
 
 
-class DistInfoSymlinkedPkg(OnSysPath, SiteDir):
-    files: FilesSpec = {
-        "symlinked_pkg-1.0.0.dist-info": {
-            "METADATA": """
-                Name: symlinked-pkg
-                Version: 1.0.0
-                """,
-            "RECORD": "symlinked,,\n",
-        },
-        ".symlink.target": {
-            "__init__.py": """
-                def main():
-                    print("hello world")
-                """,
-        },
-        # "symlinked" -> ".symlink.target", see below
-    }
-
-    def setUp(self):
-        super().setUp()
-        build_files(DistInfoSymlinkedPkg.files, self.site_dir)
-        target = self.site_dir / ".symlink.target"
-        assert target.is_dir()
-        (self.site_dir / "symlinked").symlink_to(target, target_is_directory=True)
-
-
 class EggInfoPkg(OnSysPath, SiteDir):
     files: FilesSpec = {
         "egginfo_pkg.egg-info": {

tests/test_main.py

@@ -401,14 +401,36 @@ def test_packages_distributions_all_module_types(self):
 
 
 class PackagesDistributionsDistTest(
-    fixtures.DistInfoSymlinkedPkg,
-    unittest.TestCase,
+    fixtures.OnSysPath, fixtures.SiteDir, unittest.TestCase
 ):
     def test_packages_distributions_symlinked_top_level(self):
         """
         Distribution is resolvable from a simple top-level symlink in RECORD.
         See #452.
         """
+
+        files: fixtures.FilesSpec = {
+            "symlinked_pkg-1.0.0.dist-info": {
+                "METADATA": """
+                    Name: symlinked-pkg
+                    Version: 1.0.0
+                    """,
+                "RECORD": "symlinked,,\n",
+            },
+            ".symlink.target": {
+                "__init__.py": """
+                    def main():
+                        print("hello world")
+                    """,
+            },
+            # "symlinked" -> ".symlink.target", see below
+        }
+
+        fixtures.build_files(files, self.site_dir)
+        target = self.site_dir / ".symlink.target"
+        assert target.is_dir()
+        (self.site_dir / "symlinked").symlink_to(target, target_is_directory=True)
+
         assert packages_distributions()['symlinked'] == ['symlinked-pkg']