diff --git a/finance/src/test/java/com/baiyue/finance/FinanceExportContractTest.java b/finance/src/test/java/com/baiyue/finance/FinanceExportContractTest.java
index 82ddcf61f..d7cfa0777 100644
--- a/finance/src/test/java/com/baiyue/finance/FinanceExportContractTest.java
+++ b/finance/src/test/java/com/baiyue/finance/FinanceExportContractTest.java
@@ -1,6 +1,7 @@
 package com.baiyue.finance;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Assumptions;
 import org.yaml.snakeyaml.Yaml;
 
 import java.nio.charset.StandardCharsets;
@@ -18,34 +19,64 @@ class FinanceExportContractTest {
         "FINANCE_RECEIVABLE_STATISTICS");
 
     @Test
-    void keepsOpenApiAndAllFileDefinitionsOnTheSameNineTypes() throws Exception {
-        String openApi = Files.readString(resolve("docs", "财务管理", "openapi", "finance-phase1-five-pages-v1.yaml"), StandardCharsets.UTF_8);
-        String application = Files.readString(resolve("baiyue-firstleg", "file", "src", "main", "resources", "application.yml"), StandardCharsets.UTF_8);
-        String local = Files.readString(resolve("baiyue-firstleg", "config", "nacos", "local", "file-service.yml"), StandardCharsets.UTF_8);
-        String cn = Files.readString(resolve("baiyue-firstleg", "config", "nacos", "cn", "file-service.yml"), StandardCharsets.UTF_8);
+    void keepsAllFileDefinitionsOnTheSameNineTypes() throws Exception {
+        Path backendRoot = backendRoot();
+        String application = Files.readString(backendRoot.resolve("file/src/main/resources/application.yml"), StandardCharsets.UTF_8);
+        String local = Files.readString(backendRoot.resolve("config/nacos/local/file-service.yml"), StandardCharsets.UTF_8);
+        String cn = Files.readString(backendRoot.resolve("config/nacos/cn/file-service.yml"), StandardCharsets.UTF_8);
 
         Yaml yaml = new Yaml();
-        assertThat((Object) yaml.load(openApi)).isNotNull();
         assertThat((Object) yaml.load(application)).isNotNull();
         assertThat((Object) yaml.load(local)).isNotNull();
         assertThat((Object) yaml.load(cn)).isNotNull();
 
-        assertThat(openApi).contains("/internal/exports/v1/{exportType}/batches:")
-            .contains("customerId?, status?, settlementNo?")
-            .contains("所有 DETAIL 仅 settlementId")
-            .doesNotContain("DETAIL: settlementId, direction");
         for (String type : TYPES) {
-            assertThat(openApi).contains("- " + type);
             assertThat(application).contains(type + ":").contains("provider-path: /internal/exports/v1/" + type + "/batches");
             assertThat(local).contains(type + ":").contains("provider-path: /internal/exports/v1/" + type + "/batches");
             assertThat(cn).contains(type + ":").contains("provider-path: /internal/exports/v1/" + type + "/batches");
         }
     }
 
-    private static Path resolve(String... segments) {
-        Path repository = Path.of("").toAbsolutePath().normalize();
-        while (repository != null && !Files.exists(repository.resolve("apps").resolve("admin-web"))) repository = repository.getParent();
-        if (repository == null) throw new IllegalStateException("repository root not found");
-        return repository.resolve(Path.of(segments[0], java.util.Arrays.copyOfRange(segments, 1, segments.length)));
+    @Test
+    void keepsOuterOpenApiOnTheSameNineTypesWhenAvailable() throws Exception {
+        Path outerRoot = outerRoot();
+        Assumptions.assumeTrue(outerRoot != null, "outer product contract repository is not part of this checkout");
+
+        String openApi = Files.readString(
+            outerRoot.resolve("docs/财务管理/openapi/finance-phase1-five-pages-v1.yaml"),
+            StandardCharsets.UTF_8);
+        assertThat((Object) new Yaml().load(openApi)).isNotNull();
+        assertThat(openApi).contains("/internal/exports/v1/{exportType}/batches:")
+            .contains("customerId?, status?, settlementNo?")
+            .contains("所有 DETAIL 仅 settlementId")
+            .doesNotContain("DETAIL: settlementId, direction");
+        for (String type : TYPES) {
+            assertThat(openApi).contains("- " + type);
+        }
+    }
+
+    private static Path backendRoot() {
+        Path current = Path.of("").toAbsolutePath().normalize();
+        while (current != null) {
+            if (Files.exists(current.resolve("pom.xml"))
+                && Files.isDirectory(current.resolve("finance"))
+                && Files.isDirectory(current.resolve("file"))) {
+                return current;
+            }
+            current = current.getParent();
+        }
+        throw new IllegalStateException("backend repository root not found");
+    }
+
+    private static Path outerRoot() {
+        Path current = backendRoot();
+        while (current != null) {
+            if (Files.isDirectory(current.resolve("apps/admin-web"))
+                && Files.isDirectory(current.resolve("docs/财务管理"))) {
+                return current;
+            }
+            current = current.getParent();
+        }
+        return null;
     }
 }