fix(warehouse): reject invalid import files with validation code

warehouse/src/test/java/com/baiyue/warehouse/service/ExpressCompanyImportServiceTest.java

@@ -23,6 +23,16 @@ import static org.mockito.Mockito.verify;
 class ExpressCompanyImportServiceTest {
     @MockBean private ExpressCompanyRepository repository;
     @Resource private ExpressCompanyImportService service;
+
+    @Test
+    @DisplayName("空文件或错误扩展名整批拒绝且不写入")
+    void shouldRejectMalformedWorkbookWithoutWrites() {
+        var empty = service.importFile(0L, "express.xlsx", new byte[0]);
+        var wrongExtension = service.importFile(0L, "express.xls", new byte[] {1, 2, 3});
+        assertThat(empty.success()).isFalse();
+        assertThat(wrongExtension.success()).isFalse();
+        verify(repository, never()).insert(any());
+    }
     @Test
     @DisplayName("标准模板通过整批校验后写入全部数据")
     void shouldImportValidWorkbookAfterFullValidation() throws Exception {

warehouse/src/test/java/com/baiyue/warehouse/service/PartnerImportServiceTest.java

@@ -25,6 +25,16 @@ import static org.mockito.Mockito.verify;
 class PartnerImportServiceTest {
     @MockBean private PartnerRepository repository;
     @Resource private PartnerImportService service;
+
+    @Test
+    @DisplayName("空文件或非 XLSX 整批拒绝且不写入")
+    void shouldRejectMalformedWorkbookWithoutWrites() {
+        PartnerImportResult empty = service.importFile(0L, "partners.xlsx", new byte[0]);
+        PartnerImportResult nonXlsx = service.importFile(0L, "partners.csv", new byte[] {1, 2, 3});
+        assertThat(empty.success()).isFalse();
+        assertThat(nonXlsx.success()).isFalse();
+        verify(repository, never()).insert(any());
+    }
     @Test
     @DisplayName("标准模板支持多类型并写入服务端数据范围")
     void shouldImportValidMultiTypeRow() throws Exception {

warehouse/src/test/java/com/baiyue/warehouse/service/WarehouseImportServiceTest.java

@@ -31,6 +31,17 @@ class WarehouseImportServiceTest {
     @MockBean private WarehouseApplicationService warehouseService;
     @Resource private WarehouseImportService service;
 
+    @Test
+    @DisplayName("空文件或损坏 XLSX 整批拒绝且不写入")
+    void shouldRejectMalformedWorkbookWithoutWrites() {
+        WarehouseImportResult empty = service.importFile(0L, "warehouses.xlsx", new byte[0], null);
+        WarehouseImportResult corrupt = service.importFile(0L, "warehouses.xlsx", new byte[] {1, 2, 3}, null);
+        assertThat(empty.success()).isFalse();
+        assertThat(corrupt.success()).isFalse();
+        verify(warehouseService, never()).create(any());
+        verify(warehouseService, never()).update(org.mockito.ArgumentMatchers.anyLong(), org.mockito.ArgumentMatchers.anyLong(), any());
+    }
+
     @Test
     @DisplayName("默认 CREATE_ONLY 只新增新仓库并返回预检分类")
     void shouldCreateOnlyNewWarehousesByDefault() throws Exception {