claude overtook and fixes

tests/client.test.ts

@@ -84,4 +84,71 @@ describe("SapB1Client", () => {
     expect(loginCalls).toBe(2);
     expect(resourceCalls).toBe(2);
   });
+
+  it("re-logins after a 401 even when retries are disabled", async () => {
+    let resourceCalls = 0;
+    let loginCalls = 0;
+    const http = axios.create({
+      adapter: async (requestConfig) => {
+        if (requestConfig.url === "/Login") {
+          loginCalls += 1;
+          return {
+            ...response({ SessionId: `session-${loginCalls}`, SessionTimeout: 30 }, requestConfig),
+            headers: { "set-cookie": [`B1SESSION=session-${loginCalls}; Path=/b1s/v1`] }
+          };
+        }
+
+        resourceCalls += 1;
+
+        if (resourceCalls === 1) {
+          return Promise.reject({
+            isAxiosError: true,
+            message: "Unauthorized",
+            response: { status: 401, data: { error: { message: { value: "Session expired" } } } }
+          });
+        }
+
+        return response({ value: [] }, requestConfig);
+      }
+    });
+
+    const client = new SapB1Client({ ...config, retryCount: 0 }, { http });
+    await expect(client.get("Items")).resolves.toEqual({ value: [] });
+    expect(loginCalls).toBe(2);
+    expect(resourceCalls).toBe(2);
+  });
+
+  it("follows an absolute nextLink while preserving its query string", async () => {
+    const requestedUrls: string[] = [];
+    const http = axios.create({
+      adapter: async (requestConfig) => {
+        if (requestConfig.url === "/Login") {
+          return {
+            ...response({ SessionId: "abc123", SessionTimeout: 30 }, requestConfig),
+            headers: { "set-cookie": ["B1SESSION=abc123; Path=/b1s/v1"] }
+          };
+        }
+
+        requestedUrls.push(String(requestConfig.url));
+
+        if (requestConfig.url === "Items") {
+          return response(
+            {
+              value: [{ ItemCode: "A1" }],
+              "odata.nextLink": "https://sap.example.local:50000/b1s/v1/Items?$skip=20"
+            },
+            requestConfig
+          );
+        }
+
+        return response({ value: [{ ItemCode: "A2" }] }, requestConfig);
+      }
+    });
+
+    const client = new SapB1Client(config, { http });
+    const all = await client.getAll<{ ItemCode: string }>("Items");
+
+    expect(all).toEqual([{ ItemCode: "A1" }, { ItemCode: "A2" }]);
+    expect(requestedUrls).toEqual(["Items", "Items?$skip=20"]);
+  });
 });