Utility

Author: Behemyth

cppython/utility/filesystem.py

@@ -0,0 +1,17 @@
+"""Helpers for working with the filesystem."""
+
+import os
+from collections.abc import Generator
+from contextlib import contextmanager
+from pathlib import Path
+
+
+@contextmanager
+def isolated_filesystem() -> Generator[Path]:
+    """Change the current working directory to the given path for the duration of the test."""
+    old_cwd = os.getcwd()
+    os.chdir(path)
+    try:
+        yield
+    finally:
+        os.chdir(old_cwd)

tests/integration/examples/test_pdm_vcpkg_cmake.py

@@ -3,9 +3,12 @@
 All examples can be run with the CPPython entry-point, and we use the examples as the test data for the CLI.
 """
 
+import shutil
 from pathlib import Path
 
-pytest_plugins = ['tests.fixtures.example']
+from cppython.utility.filesystem import isolated_filesystem
+
+pytest_plugins = ['tests.fixtures.utility']
 
 
 class TestSetup:
@@ -20,7 +23,7 @@ def test_example_directory(example_directory: Path) -> None:
     @staticmethod
     def test_list(example_directory: Path) -> None:
         """Verifies that the list command functions with CPPython hooks"""
-        with runner.isolated_filesystem() as temp_directory:
+        with isolated_filesystem() as temp_directory:
             shutil.copytree(example_directory, temp_directory, dirs_exist_ok=True)
 
             result = runner.invoke(app, ['list'])