py domain: Add testcase for empty callable (refs: #9427)

sphinx-doc · Jul 10, 2021 · dd89c36 · dd89c36
1 parent a671059
commit dd89c36
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/tests/test_domain_py.py b/tests/test_domain_py.py
@@ -321,6 +321,15 @@ def test_parse_annotation(app):
                           [pending_xref, "int"],
                           [desc_sig_punctuation, "]"]))
 
+    doctree = _parse_annotation("Callable[[], int]", app.env)
+    assert_node(doctree, ([pending_xref, "Callable"],
+                          [desc_sig_punctuation, "["],
+                          [desc_sig_punctuation, "["],
+                          [desc_sig_punctuation, "]"],
+                          [desc_sig_punctuation, ", "],
+                          [pending_xref, "int"],
+                          [desc_sig_punctuation, "]"]))
+
     doctree = _parse_annotation("List[None]", app.env)
     assert_node(doctree, ([pending_xref, "List"],
                           [desc_sig_punctuation, "["],