Added alt_tmp_path pytest fixture

Author: aabmets

tests/__init__.py

@@ -0,0 +1,35 @@
+#
+#   MIT License
+#
+#   Copyright (c) 2024, Mattias Aabmets
+#
+#   The contents of this file are subject to the terms and conditions defined in the License.
+#   You may not use, modify, or distribute this file except in compliance with the License.
+#
+#   SPDX-License-Identifier: MIT
+#
+
+import re
+import string
+import pytest
+import secrets
+import tempfile
+from pathlib import Path
+
+
+@pytest.fixture(name="alt_tmp_path", scope="function")
+def fixture_alt_tmp_path(tmp_path) -> Path:
+    base_path = Path(tempfile.gettempdir())
+
+    match = re.search(r"/pytest-(\d+)/", tmp_path.as_posix())
+    pytest_dir = "qc_pytest" + ('_' + match.group(1) if match else '')
+
+    charset = string.ascii_letters + string.digits
+    test_dir = ''.join([secrets.choice(charset) for _ in range(20)])
+
+    test_path = base_path / pytest_dir / test_dir
+    if test_path.exists():
+        raise RuntimeError(f"Cannot reuse existing temp test path: {test_path}")
+
+    test_path.mkdir(parents=True, exist_ok=True)
+    return test_path

tests/conftest.py

@@ -10,9 +10,7 @@
 #
 
 import os
-import shutil
 import pytest
-import secrets
 import typing as t
 from pathlib import Path
 from dataclasses import dataclass
@@ -45,17 +43,15 @@ class CLIMessages:
 
 
 @pytest.fixture(name="cfp_setup", scope="function")
-def fixture_cfp_setup(tmp_path: Path) -> Callable[..., t.ContextManager[CryptoFilePaths]]:
+def fixture_cfp_setup(alt_tmp_path) -> Callable[..., t.ContextManager[CryptoFilePaths]]:
     @contextmanager
     def closure(algorithm: str) -> t.Generator[CryptoFilePaths, t.Any, None]:
-        sub_path = tmp_path / secrets.token_hex(16)
-        sub_path.mkdir(parents=True, exist_ok=True)
         cfp_dict = dict(
-            public_key_fp=sub_path / f"{algorithm}-pubkey.qc",
-            secret_key_fp=sub_path / f"{algorithm}-seckey.qc",
-            ciphertext_fp=sub_path / "ciphertext.kptn",
-            plaintext_fp=sub_path / "plaintext.bin",
-            signature_fp=sub_path / "signature.sig",
+            public_key_fp=alt_tmp_path / f"{algorithm}-pubkey.qc",
+            secret_key_fp=alt_tmp_path / f"{algorithm}-seckey.qc",
+            ciphertext_fp=alt_tmp_path / "ciphertext.kptn",
+            plaintext_fp=alt_tmp_path / "plaintext.bin",
+            signature_fp=alt_tmp_path / "signature.sig",
             ptf_data=os.urandom(1024)
         )
         cfp = CryptoFilePaths(**{
@@ -65,7 +61,7 @@ def closure(algorithm: str) -> t.Generator[CryptoFilePaths, t.Any, None]:
         with open(cfp.plaintext_fp, "wb") as file:
             file.write(cfp.ptf_data)
         cwd = os.getcwd()
-        os.chdir(sub_path)
+        os.chdir(alt_tmp_path)
         yield cfp
         os.chdir(cwd)
     return closure