diff --git a/tests/test_config.py b/tests/test_config.py
index 5c8835e..e278d12 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -3,7 +3,7 @@
 from leakrfc.archive import Archive, configure_archive, get_archive, get_dataset
 
 
-def test_config(fixtures_path, monkeypatch):
+def test_config(fixtures_path, monkeypatch, tmp_path):
     config = Archive._from_uri(fixtures_path / "archive.yml")
     archive = get_archive()
     assert config.storage.uri.strip(".") in archive._storage.uri
@@ -30,7 +30,12 @@ def test_config(fixtures_path, monkeypatch):
     dataset = get_dataset("test_dataset", uri="foo")
     assert dataset._storage.uri.endswith("foo")
 
-    archive = get_archive("foo.leakrfc")
+    archive = get_archive(tmp_path / "foo.leakrfc")
+    assert archive.is_zip
     dataset = archive.get_dataset("test")
     assert dataset._storage.uri == archive._storage.uri
     assert dataset._make_path() == "test"
+
+    dataset = get_dataset("test_dataset", tmp_path / "foo2.leakrfc")
+    assert dataset.is_zip
+    assert dataset._make_path() == "test_dataset"