Add error handling + use test_* syntax instead

Author: ichard26

mypyc/lib-rt/misc_ops.c

@@ -647,7 +647,9 @@ int CPyStatics_Initialize(PyObject **statics,
             for (int i = 0; i < num_items; i++) {
                 PyObject *item = statics[*frozensets++];
                 Py_INCREF(item);
-                PySet_Add(obj, item);
+                if (PySet_Add(obj, item) == -1) {
+                    return -1;
+                }
             }
             *result++ = obj;
         }

mypyc/test-data/fixtures/ir.py

@@ -221,12 +221,14 @@ def clear(self) -> None: pass
     def pop(self) -> T: pass
     def update(self, x: Iterable[S]) -> None: pass
     def __or__(self, s: Union[Set[S], FrozenSet[S]]) -> Set[Union[T, S]]: ...
+    def __xor__(self, s: Union[Set[S], FrozenSet[S]]) -> Set[Union[T, S]]: ...
 
 class frozenset(Generic[T]):
     def __init__(self, i: Optional[Iterable[T]] = None) -> None: pass
     def __iter__(self) -> Iterator[T]: pass
     def __len__(self) -> int: pass
     def __or__(self, s: Union[Set[S], FrozenSet[S]]) -> FrozenSet[Union[T, S]]: ...
+    def __xor__(self, s: Union[Set[S], FrozenSet[S]]) -> FrozenSet[Union[T, S]]: ...
 
 class slice: pass
 

mypyc/test-data/run-sets.test

@@ -116,7 +116,7 @@ s = {1, 2, 3}
 update(s, [5, 4, 3])
 assert s == {1, 2, 3, 4, 5}
 
-[case testPrecomputedFrozensets]
+[case testPrecomputedFrozenSets]
 from typing import Any
 from typing_extensions import Final
 
@@ -136,16 +136,15 @@ s = set()
 for i in {None, False, 1, 2.0, "3", b"4", 5j, (6,), CONST}:
     s.add(i)
 
-[file driver.py]
-import native
-from native import CONST, main_set, main_negated_set, non_final_name_set
-
-for item in (None, False, 1, 2.0, "3", b"4", 5j, (6,), ((7,),), (), CONST):
-    assert main_set(item), f"{item!r} should be in set_main"
-    assert not main_negated_set(item), item
+def test_in_set() -> None:
+    for item in (None, False, 1, 2.0, "3", b"4", 5j, (6,), ((7,),), (), CONST):
+        assert main_set(item), f"{item!r} should be in set_main"
+        assert not main_negated_set(item), item
 
-assert non_final_name_set(native.non_const)
-native.non_const = "updated"
-assert non_final_name_set("updated")
+    assert non_final_name_set(non_const)
+    global non_const
+    non_const = "updated"
+    assert non_final_name_set("updated")
 
-assert not native.s ^ {None, False, 1, 2.0, "3", b"4", 5j, (6,), CONST}, native.s
+def test_for_set() -> None:
+    assert not s ^ {None, False, 1, 2.0, "3", b"4", 5j, (6,), CONST}, s