fix(data_dir): remove dot files everywhere

tests/__init__.py

@@ -26,7 +26,7 @@ class BaseTestCase(unittest.TestCase):
         self.tmp_path = pathlib.Path(self.tmp_dir.name)
         return self.tmp_dir.name
 
-    def mock(self, spec: type | None = None) -> unittest.mock.Mock:
+    def new_mock(self, spec: type | None = None) -> unittest.mock.Mock:
         mock = unittest.mock.Mock(spec)
         self.mocks += [mock]
         return mock

tests/test_data_dir.py

@@ -97,10 +97,21 @@ class TestDataDir(BaseTestCase):
 
     def test_extract_tar_bytes_create_without_dotfiles(self) -> None:
         tar_bytes = self.__get_tar_bytes(
-            {"value": "value", ".value": "value", ".git/test": "test"}
+            {
+                "value": "value",
+                ".value": "value",
+                ".git/test": "test",
+                "dir/.invalid": "value",
+                "dir/.test/hello": "value",
+            }
         )
         self.data_dir.extract_tar_bytes("test_1", tar_bytes)
         self.assert_file_content(self.tmp_path / "test_1" / "value", "value")
+        assert not (self.tmp_path / "test_1" / ".value").exists()
+        assert not (self.tmp_path / "test_1" / ".git").exists()
+        assert (self.tmp_path / "test_1" / "dir").exists()
+        assert not (self.tmp_path / "test_1" / "dir" / ".invalid").exists()
+        assert not (self.tmp_path / "test_1" / "dir" / ".test").exists()
 
     def test_extract_tar_bytes_update(self) -> None:
         self.__create_path(