test(allocator): Merge test (#9267)

Author: kdy1

crates/swc_allocator/tests/apis.rs crates/swc_allocator/tests/alloction.rs

@@ -1,5 +1,5 @@
 use criterion::black_box;
-use swc_allocator::Allocator;
+use swc_allocator::{boxed::Box, Allocator, FastAlloc};
 
 #[test]
 fn direct_alloc_std() {
@@ -33,3 +33,31 @@ fn direct_alloc_in_scope() {
         vec.push(item);
     }
 }
+
+#[test]
+fn escape() {
+    let allocator = Allocator::default();
+
+    let obj = {
+        let _guard = unsafe { allocator.guard() };
+        Box::new(1234)
+    };
+
+    assert_eq!(*obj, 1234);
+    // It should not segfault, because the allocator is still alive.
+    drop(obj);
+}
+
+#[test]
+fn global_allocator_escape() {
+    let allocator = Allocator::default();
+    let obj = {
+        let _guard = unsafe { allocator.guard() };
+        Box::new_in(1234, FastAlloc::global())
+    };
+
+    assert_eq!(*obj, 1234);
+    drop(allocator);
+    // Object created with global allocator should outlive the allocator.
+    drop(obj);
+}