diff --git a/tests/test_product.py b/tests/test_product.py
index 52b7528..c135cc2 100644
--- a/tests/test_product.py
+++ b/tests/test_product.py
@@ -220,6 +220,8 @@ def test_products_pagination(self, create_product):
         data1 = resp1.get_json()
         assert "products" in data1
         assert len(data1["products"]) == 10
+        assert data1["cursor"]["prev"] is None
+        assert isinstance(data1["cursor"]["next"], str)
 
         # Page 2
         next_cursor = data1["cursor"]["next"]
@@ -228,3 +230,5 @@ def test_products_pagination(self, create_product):
         data2 = resp2.get_json()
         assert "products" in data2
         assert len(data2["products"]) == 5
+        assert data2["cursor"]["next"] is None
+        assert isinstance(data2["cursor"]["prev"], str)
diff --git a/tests/test_relationships.py b/tests/test_relationships.py
index 173fd45..1c090e0 100644
--- a/tests/test_relationships.py
+++ b/tests/test_relationships.py
@@ -219,8 +219,13 @@ def test_get_category_products_populated_with_pagination(self, create_category,
             product_ids.add(product_resp.get_json().get("id"))
 
         page1 = self.client.get(f"/categories/{category['id']}/products").get_json()
+        assert page1["cursor"]["prev"] is None
+        assert type(page1["cursor"]["next"]) is str
+
         next_cursor = page1["cursor"]["next"]
         page2 = self.client.get(f"/categories/{category['id']}/products?cursor={next_cursor}").get_json()
+        assert page2["cursor"]["next"] is None
+        assert isinstance(page2["cursor"]["prev"], str)
         assert len(page1["products"]) == 10
         assert len(page2["products"]) == 2
 
@@ -254,8 +259,13 @@ def test_get_subcategory_products_populated_with_pagination(self, create_subcate
             product_ids.add(product_resp.get_json().get("id"))
 
         page1 = self.client.get(f"/subcategories/{subcategory['id']}/products").get_json()
+        assert page1["cursor"]["prev"] is None
+        assert type(page1["cursor"]["next"]) is str
+
         next_cursor = page1["cursor"]["next"]
         page2 = self.client.get(f"/subcategories/{subcategory['id']}/products?cursor={next_cursor}").get_json()
+        assert page2["cursor"]["next"] is None
+        assert isinstance(page2["cursor"]["prev"], str)
         assert len(page1["products"]) == 10
         assert len(page2["products"]) == 1