test: Fix version test not working under tox

tests/test_common.py

@@ -14,21 +14,27 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 import subprocess
+import pathlib
 
 import pytest
 from hamcrest import *
 
 import autokey.common
 
+autokey_repo_path = pathlib.Path(__file__).parent
+
+def get_recent_git_tag(extra_args=[]):
+    command =["git", "-C", str(autokey_repo_path), "describe", "--abbrev=0",
+                           "--tags", *extra_args]
+    tag = subprocess.run(command, stdout=subprocess.PIPE).stdout.decode().rstrip()
+    return tag
 # Ensure that the version number is up to date in common.py
 # Skip this test if the tag contains "CI_test"
-@pytest.mark.skipif("CI_test" in subprocess.run(["git", "describe",
-    "--abbrev=0", "--tags"], stdout=subprocess.PIPE).stdout.decode().rstrip(),
+@pytest.mark.skipif("CI_test" in get_recent_git_tag(),
     reason="Don't test version for CI_test tags")
 def test_version_number_accurate():
-    git_tag_version = subprocess.run(["git", "describe", "--abbrev=0",
-        "--tags", '--match="v*.*.*"'],
-        stdout=subprocess.PIPE).stdout.decode().rstrip()
+    # git_tag_version = get_recent_git_tag(["--match='v*.*.*'"])
+    git_tag_version = get_recent_git_tag()
     assert_that(git_tag_version, is_(equal_to("v"+autokey.common.VERSION)),
     "Ensure the most recent git tag version matches the version number in lib/autokey/common.py")