diff --git a/test/response.util.ts b/test/response.util.ts
index 2804b66..1044b09 100644
--- a/test/response.util.ts
+++ b/test/response.util.ts
@@ -12,10 +12,10 @@ export function successResponseList(successMsg: string | null = 'OK') {
 
 export function successResponseListV3() {
   return {
+    ...successEmptyResponseObjectV3(),
     result: {
       list: expect.any(Array),
     },
-    ...successEmptyResponseObjectV3(),
   };
 }
 
@@ -36,8 +36,8 @@ export function successResponseObjectV3() {
 
 export function successEmptyResponseObjectV3() {
   return {
-    retCode: API_ERROR_CODE.SUCCESS,
     retMsg: expect.stringMatching(SUCCESS_MSG_REGEX),
+    retCode: API_ERROR_CODE.SUCCESS,
   };
 }
 
diff --git a/test/spot/private.v3.read.test.ts b/test/spot/private.v3.read.test.ts
index 6db17ae..8c4fa37 100644
--- a/test/spot/private.v3.read.test.ts
+++ b/test/spot/private.v3.read.test.ts
@@ -35,6 +35,28 @@ describe('Private Spot REST API GET Endpoints', () => {
     expect(await api.getOpenOrders()).toMatchObject(successResponseListV3());
   });
 
+  it('getOpenOrders() with symbol', async () => {
+    expect(await api.getOpenOrders(symbol)).toMatchObject(
+      successResponseListV3()
+    );
+  });
+
+  it('getOpenOrders() with order category', async () => {
+    const orderId = undefined;
+    const ordersPerPage = undefined;
+
+    // all these should succeed
+    expect(
+      await api.getOpenOrders(symbol, orderId, ordersPerPage)
+    ).toMatchObject(successResponseListV3());
+    expect(
+      await api.getOpenOrders(symbol, orderId, ordersPerPage, 0)
+    ).toMatchObject(successResponseListV3());
+    expect(
+      await api.getOpenOrders(symbol, orderId, ordersPerPage, 1)
+    ).toMatchObject(successResponseListV3());
+  });
+
   it('getPastOrders()', async () => {
     expect(await api.getPastOrders()).toMatchObject(successResponseListV3());
   });