refactor: 调整通用领域模型包结构

src/test/java/com/bruce/common/model/RequestResultStructureTests.java

@@ -0,0 +1,55 @@
+package com.bruce.common.model;
+
+import com.bruce.common.domain.model.RequestResult;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+class RequestResultStructureTests {
+
+    @Test
+    void dataConstructorShouldDefaultToSuccessCode() {
+        RequestResult<String> result = new RequestResult<>("payload");
+
+        assertEquals(RequestResult.SUCCESS_CODE, result.getResultcode());
+        assertNull(result.getMessage());
+        assertEquals("payload", result.getData());
+    }
+
+    @Test
+    void successFactoryShouldBuildSuccessfulResult() {
+        RequestResult<String> result = RequestResult.success("payload");
+
+        assertEquals(RequestResult.SUCCESS_CODE, result.getResultcode());
+        assertNull(result.getMessage());
+        assertEquals("payload", result.getData());
+    }
+
+    @Test
+    void successFactoryWithMessageShouldKeepCustomMessage() {
+        RequestResult<String> result = RequestResult.success("操作成功", "payload");
+
+        assertEquals(RequestResult.SUCCESS_CODE, result.getResultcode());
+        assertEquals("操作成功", result.getMessage());
+        assertEquals("payload", result.getData());
+    }
+
+    @Test
+    void failFactoryShouldBuildFailureResult() {
+        RequestResult<Void> result = RequestResult.fail("校验失败");
+
+        assertEquals(RequestResult.FAIL_CODE, result.getResultcode());
+        assertEquals("校验失败", result.getMessage());
+        assertNull(result.getData());
+    }
+
+    @Test
+    void failFactoryWithCustomCodeShouldKeepCustomCode() {
+        RequestResult<Void> result = RequestResult.fail("VALIDATE_ERROR", "校验失败");
+
+        assertEquals("VALIDATE_ERROR", result.getResultcode());
+        assertEquals("校验失败", result.getMessage());
+        assertNull(result.getData());
+    }
+}