Fix test for situation where tests are ran outside a Github repo

tests/test_metadata.py

@@ -4,6 +4,7 @@
 import pytest
 
 from hatch_openzim.metadata import update
+from hatch_openzim.utils import DEFAULT_GITHUB_INFO
 
 
 @pytest.fixture
@@ -17,6 +18,11 @@ def dynamic_metadata():
     ]
 
 
+@pytest.fixture
+def root_folder() -> Path:
+    return Path(os.path.dirname(os.path.abspath(__file__))).parent
+
+
 @pytest.fixture
 def metadata(dynamic_metadata):
     return {
@@ -25,9 +31,13 @@ def metadata(dynamic_metadata):
     }
 
 
-def test_metadata_nominal(metadata):
+def git_config_exists(root_folder: Path) -> bool:
+    return (root_folder / ".git/config").exists()
+
+
+def test_metadata_nominal(metadata, root_folder):
     update(
-        root=str(Path(os.path.dirname(os.path.abspath(__file__))).parent),
+        root=str(root_folder),
         config={},
         metadata=metadata,
     )
@@ -43,7 +53,11 @@ def test_metadata_nominal(metadata):
     assert metadata["license"] == {"text": "GPL-3.0-or-later"}
     assert metadata["urls"] == {
         "Donate": "https://www.kiwix.org/en/support-us/",
-        "Homepage": "https://github.com/openzim/hatch-openzim",
+        "Homepage": (
+            "https://github.com/openzim/hatch-openzim"
+            if git_config_exists(root_folder)
+            else DEFAULT_GITHUB_INFO.homepage
+        ),
     }