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file/src/test/java/com/baiyue/file/controller/QualificationFileContractTest.java

@@ -0,0 +1,28 @@
+package com.baiyue.file.controller;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import java.util.Arrays;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class QualificationFileContractTest {
+
+    @Test
+    void fileServiceExposesTheOnlyPublicMultipartUploadEntry() {
+        RequestMapping baseMapping = QualificationFileController.class.getAnnotation(RequestMapping.class);
+        assertTrue(Arrays.asList(baseMapping.value())
+                .contains("/api/merchant/v1/files/qualifications"));
+
+        boolean hasMultipartPost = Arrays.stream(QualificationFileController.class.getDeclaredMethods())
+                .map(method -> method.getAnnotation(PostMapping.class))
+                .filter(java.util.Objects::nonNull)
+                .flatMap(mapping -> Arrays.stream(mapping.consumes()))
+                .anyMatch(MediaType.MULTIPART_FORM_DATA_VALUE::equals);
+
+        assertTrue(hasMultipartPost, "企业资质真实上传入口必须保持 multipart/form-data 契约");
+    }
+}

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

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+package com.baiyue.file.service;
+
+import com.baiyue.common.core.exception.BizException;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+import org.springframework.mock.web.MockMultipartFile;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class LocalQualificationStorageTest {
+
+    @TempDir
+    Path storageRoot;
+
+    @Test
+    void storeReturnsFileServiceUrlBackedByARealTenantFile() throws Exception {
+        var storage = new LocalQualificationStorage(storageRoot.toString());
+        byte[] png = {(byte) 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x01};
+        var upload = new MockMultipartFile("file", "license.png", "image/png", png);
+
+        var stored = storage.store(10001L, upload);
+
+        assertTrue(stored.documentUrl().matches(
+                "/api/merchant/v1/files/qualifications/[0-9a-f-]{36}\\.png"));
+        assertTrue(Files.isRegularFile(stored.path()));
+        assertEquals(stored.path().toAbsolutePath(),
+                storage.load(10001L, stored.fileName()).getFile().toPath().toAbsolutePath());
+    }
+
+    @Test
+    void legacySeedPathCannotBePretendedToBeAStoredFile() {
+        var storage = new LocalQualificationStorage(storageRoot.toString());
+
+        assertThrows(BizException.class,
+                () -> storage.load(10001L, "demo-business-license.jpg"));
+    }
+}