properly check that local packages are skipped

Author: keewis

minimum_versions/tests/test_environments.py

@@ -355,6 +355,9 @@ def test_parse_spec_error(self, version_text):
             pytest.param(
                 textwrap.dedent(
                     """\
+                    [package]
+                    name = "a"
+
                     [dependencies]
                     a = { path = "." }