Merge pull request moonbitlang#443 from moonbitlang/hongbo/add_overflow_test

Add int overflow test

Author: bobzhang

int/int_test.mbt

@@ -0,0 +1,19 @@
+// Copyright 2024 International Digital Economy Academy
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+test "overflow" {
+  // signed integer expected to be negative
+  inspect(0xC2B2AE3D, content="-1028477379")?
+  inspect(0x85EBCA77, content="-2048144777")?
+}