添加新的单测

Author: noear

snack4-test/src/test/java/features/snack4/codec/LoopNestingTest.java

@@ -0,0 +1,53 @@
+package features.snack4.codec;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.noear.snack4.ONode;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ *
+ * @author noear 2025/12/28 created
+ *
+ */
+public class LoopNestingTest {
+    @Test
+    public void case1() {
+        Map<String, Object> tmp = new HashMap<>();
+        tmp.put("a", "a");
+        tmp.put("b", tmp);
+
+        String json = ONode.serialize(tmp);
+        System.out.println(json);
+        Assertions.assertEquals("{\"a\":\"a\"}", json);
+    }
+
+    @Test
+    public void case2() {
+        A tmp = new A();
+        tmp.a = "a";
+        tmp.b = tmp;
+
+        String json = ONode.serialize(tmp);
+        System.out.println(json);
+        Assertions.assertEquals("{\"a\":\"a\"}", json);
+    }
+
+    @Test
+    public void case2_ref() {
+        A tmp = new A();
+        tmp.a = "a";
+        tmp.b = tmp;
+
+        A a = ONode.deserialize("{\"a\":\"a\"}", A.class);
+        Assertions.assertEquals("a", "a");
+        assert a.b == a;
+    }
+
+    public static class A {
+        public String a;
+        public A b;
+    }
+}