Test oversize photo/document rejection

src/tools/send.test.ts

@@ -75,4 +75,28 @@ describe("send tool", () => {
     expect(bot.sendPhoto).toHaveBeenCalledTimes(1);
     expect(bot.sendDocument).toHaveBeenCalledTimes(1);
   });
+
+  it("rejects photos over 10 MB", async () => {
+    const { open } = await import("node:fs/promises");
+    const fh = await open(path.join(dir, "big.png"), "w");
+    try {
+      await fh.truncate(11 * 1024 * 1024);
+    } finally {
+      await fh.close();
+    }
+    await expect(handleSend({ path: "big.png" }, opts)).rejects.toThrow(/photo too large: 11\.0 MB > 10 MB/);
+    expect(bot.sendPhoto).not.toHaveBeenCalled();
+  });
+
+  it("rejects documents over 50 MB", async () => {
+    const { open } = await import("node:fs/promises");
+    const fh = await open(path.join(dir, "big.bin"), "w");
+    try {
+      await fh.truncate(51 * 1024 * 1024);
+    } finally {
+      await fh.close();
+    }
+    await expect(handleSend({ path: "big.bin" }, opts)).rejects.toThrow(/document too large: 51\.0 MB > 50 MB/);
+    expect(bot.sendDocument).not.toHaveBeenCalled();
+  });
 });