point XDG_*_HOME to temp dirs for tests, fixes #1714

otherwise it spoils the user's nonces and cache dirs with lots of files.

also: remove all BORG_* env vars from the outer environment

fix get_*_dir tests to use monkeypatch.

1 files changed, 14 insertions, 0 deletions

diff --git a/conftest.py b/conftest.py
new file mode 100644
index 000000000..9d5513b5f
--- /dev/null
+++ b/conftest.py
@@ -0,0 +1,14 @@
+import os
+
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def clean_env(tmpdir_factory, monkeypatch):
+    # avoid that we access / modify the user's normal .config / .cache directory:
+    monkeypatch.setenv('XDG_CONFIG_HOME', tmpdir_factory.mktemp('xdg-config-home'))
+    monkeypatch.setenv('XDG_CACHE_HOME', tmpdir_factory.mktemp('xdg-cache-home'))
+    # also avoid to use anything from the outside environment:
+    keys = [key for key in os.environ if key.startswith('BORG_')]
+    for key in keys:
+        monkeypatch.delenv(key, raising=False)