gh-149219: Test frozendict in Lib/test/test_crossinterp.py

Author: sobolevn

Lib/test/test_crossinterp.py

@@ -157,6 +157,10 @@ def ignore_byteswarning():
     {},
     {1: 7, 2: 8, 3: 9},
     {1: [1], 2: (2,), 3: {3: 4}},
+    # frozendict
+    frozendict(),
+    frozendict({1: 7, 2: 8, 3: 9}),
+    frozendict({1: [1], 2: (2,), 3: {3: 4}, 4: frozendict({5: 6})}),
     # set
     set(),
     {1, 2, 3},