diff --git a/schema/request_data.py b/schema/request_data.py
index f30304c..5c0ecff 100644
--- a/schema/request_data.py
+++ b/schema/request_data.py
@@ -4,9 +4,9 @@ from schema.methods import Methods
 
 class RequestData(BaseModel):
     method: Methods = Methods.GET
-    data: dict|None = None
+    data: dict | None = None
     params: dict = {}
-    form: dict|None = None
+    form: dict | None = None
     url: str
     headers: dict = {}
     cookies: dict = {}
diff --git a/tests/test_request_data_schema.py b/tests/test_request_data_schema.py
index d0a0597..dca8bfc 100644
--- a/tests/test_request_data_schema.py
+++ b/tests/test_request_data_schema.py
@@ -17,6 +17,17 @@ class TestRequestDataSchema(unittest.TestCase):
             "http_version": "HTTP/1.1",
             "time": "2024-01-01 12:00:00",
         }
+        self.request_data_less: dict[Any, Any] = {
+            "method": "GET",
+            "data": None,
+            "params": {},
+            "form": None,
+            "url": "https://example.com",
+            "headers": {},
+            "cookies": {},
+            "http_version": "HTTP/1.1",
+            "time": "2024-01-01 12:00:00",
+        }
 
     def test_request_data_creation(self):
         request_data = RequestData(**self.request_data)
@@ -30,6 +41,34 @@ class TestRequestDataSchema(unittest.TestCase):
         self.assertEqual(request_data.form, self.request_data["form"])
         self.assertEqual(request_data.params, self.request_data["params"])
 
+    def test_request_data_creation_less_data(self):
+        request_data = RequestData(**self.request_data_less)
+        self.assertEqual(request_data.data, None)
+        self.assertEqual(request_data.method, Methods.GET)
+        self.assertEqual(request_data.url, self.request_data_less["url"])
+        self.assertEqual(request_data.headers, self.request_data_less["headers"])
+        self.assertEqual(request_data.time, self.request_data_less["time"])
+        self.assertEqual(request_data.http_version, "HTTP/1.1")
+        self.assertEqual(request_data.cookies, self.request_data_less["cookies"])
+        self.assertEqual(request_data.form, None)
+        self.assertEqual(request_data.params, self.request_data_less["params"])
+
+    def test_request_data_creation_invalid_method(self):
+        with self.assertRaises(ValueError):
+            RequestData(**{**self.request_data, "method": "INVALID"})
+        with self.assertRaises(ValueError):
+            RequestData(**{**self.request_data, "method": 123})
+        with self.assertRaises(ValueError):
+            RequestData(**{**self.request_data, "method": None})
+
+    def test_request_data_creation_invalid_headers(self):
+        with self.assertRaises(ValueError):
+            RequestData(**{**self.request_data, "headers": "INVALID"})
+        with self.assertRaises(ValueError):
+            RequestData(**{**self.request_data, "headers": 123})
+        with self.assertRaises(ValueError):
+            RequestData(**{**self.request_data, "headers": None})
+
 
 if __name__ == "__main__":
     unittest.main()