test(dispatch): verify multi-photo evidence and synchronize PDF storage assertions

file/src/test/java/com/baiyue/file/service/OwnedBusinessPhotoFileTest.java

@@ -45,8 +45,9 @@ class OwnedBusinessPhotoFileTest {
         verifyNoInteractions(files, storage);
     }
 
+    /** 装车驾驶证允许 PDF；油耗仍限图片，两类都拒绝空文件、伪造内容和超限文件。 */
     @ParameterizedTest @ValueSource(strings = {LOADING, FUEL})
-    void storesRealImagesButRejectsPdfSpoofedEmptyAndOversizedFiles(String type) throws Exception {
+    void enforcesLoadingAndFuelFormatPoliciesAndRejectsInvalidFiles(String type) throws Exception {
         var storage = new BusinessFileStorage();
         ReflectionTestUtils.setField(storage, "configuredRoot", root);
         storage.initializeRoot();
@@ -60,8 +61,14 @@ class OwnedBusinessPhotoFileTest {
         for (var upload : new MockMultipartFile[]{
                 new MockMultipartFile("file", "empty.png", "image/png", new byte[0]),
                 new MockMultipartFile("file", "spoof.png", "image/png", "not-image".getBytes()),
-                new MockMultipartFile("file", "receipt.pdf", "application/pdf", "%PDF-1.7\nreceipt".getBytes())})
+                new MockMultipartFile("file", "spoof.pdf", "application/pdf", "not-pdf".getBytes())})
             assertThatThrownBy(() -> storage.store(0, "71", upload, category)).isInstanceOf(BizException.class);
+        var pdf = new MockMultipartFile("file", "license.pdf", "application/pdf", "%PDF-1.7\nTEST license".getBytes());
+        if (LOADING.equals(type)) {
+            var saved = storage.store(0, "71", pdf, category);
+            assertThat(saved.contentType()).isEqualTo("application/pdf");
+            assertThat(storage.read(saved.objectKey())).isEqualTo(pdf.getBytes());
+        } else assertThatThrownBy(() -> storage.store(0, "71", pdf, category)).isInstanceOf(BizException.class);
         MultipartFile oversized = mock(MultipartFile.class);
         when(oversized.isEmpty()).thenReturn(false);
         when(oversized.getSize()).thenReturn(10L * 1024 * 1024 + 1);