Refactor defaultdict tests

tests/common.py

@@ -18,7 +18,10 @@
     List,
     Set,
     Tuple,
+    FrozenSet,
+    DefaultDict,
 )
+from collections import defaultdict
 from typing_extensions import TypeAlias
 
 import more_itertools
@@ -118,7 +121,7 @@ def yaml_not_supported(se: Any, de: Any, opt: Any) -> bool:
     param({1, 2}, Set, toml_not_supported),
     param({1, 2}, set, toml_not_supported),
     param(set(), Set[int], toml_not_supported),
-    # TODO param(frozenset({1, 2}), FrozenSet[int], toml_not_supported),
+    param(frozenset({1, 2}), FrozenSet[int], toml_not_supported),
     param((1, 1), Tuple[int, int]),
     param((1, 1), Tuple),
     param((1, 2, 3), Tuple[int, ...]),
@@ -127,8 +130,8 @@ def yaml_not_supported(se: Any, de: Any, opt: Any) -> bool:
     param({"a": 1}, dict),
     param({}, Dict[str, int]),
     param({"a": 1}, Dict[str, int]),
-    # TODO param({"a": 1}, DefaultDict[str, int]),
-    # TODO param({"a": [1]}, DefaultDict[str, List[int]]),
+    param(defaultdict({"a": 1}.copy), DefaultDict[str, int]),
+    param(defaultdict({"a": [1]}.copy), DefaultDict[str, List[int]]),
     param(data.Pri(10, "foo", 100.0, True), data.Pri),  # dataclass
     param(data.Pri(10, "foo", 100.0, True), Optional[data.Pri]),
     param(