Add test case for cloning submodules with relative path

Author: t-webber

test/test_submodule.py

@@ -1350,3 +1350,23 @@ def test_submodule_update_unsafe_options_allowed(self, rw_repo):
 forunsafe_optioninunsafe_options:
 withself.assertRaises(GitCommandError):
 submodule.update(clone_multi_options=[unsafe_option], allow_unsafe_options=True)
+
+@with_rw_directory
+@_patch_git_config("protocol.file.allow", "always")
+deftest_submodule_update_relative_url(self, rwdir):
+parent_path=osp.join(rwdir, "parent")
+parent_repo=git.Repo.init(parent_path)
+submodule_path=osp.join(rwdir, "module")
+submodule_repo=git.Repo.init(submodule_path)
+submodule_repo.git.commit(m="initial commit", allow_empty=True)
+
+parent_repo.git.submodule("add", "../module", "module")
+parent_repo.index.commit("add submodule with relative URL")
+
+cloned_path=osp.join(rwdir, "cloned_repo")
+cloned_repo=git.Repo.clone_from(parent_path, cloned_path)
+
+cloned_repo.submodule_update(init=True, recursive=True)
+
+has_module=any(sm.name=="module"forsmincloned_repo.submodules)
+asserthas_module, "Relative submodule was not updated properly"