diff --git a/tests/classes_test.py b/tests/classes_test.py
index 7683fbb..eb57bf3 100644
--- a/tests/classes_test.py
+++ b/tests/classes_test.py
@@ -1,8 +1,13 @@
+from http import HTTPStatus
+from unittest.mock import Mock, patch
+
+import pytest
+import requests
+
 from pyplayht.classes import Client
 
 
-def test_client():
-    client = Client()
+def test_client(client: Client):
     # check for available methods
     assert hasattr(client, "get_voices") and callable(client.get_voices)
     assert hasattr(client, "new_conversion_job") and callable(
@@ -12,3 +17,26 @@ def test_client():
         client.get_coversion_job_status,
     )
     assert hasattr(client, "download_file") and callable(client.download_file)
+
+
+@pytest.mark.parametrize(
+    "method",
+    [
+        "GET",
+        "POST",
+    ],
+)
+def test_request(method: str, client: Client):
+    response = client._request(
+        method=method, path=f"https://postman-echo.com/{method.lower()}"
+    )
+    assert isinstance(response, requests.Response)
+    assert response.status_code == HTTPStatus.OK
+
+
+def test_download_file(client: Client):
+    mock_request = Mock()
+    mock_request.content = bytes()
+    with patch("pyplayht.classes.Client._request", return_value=mock_request):
+        response = client.download_file("http://127.0.0.1/test_path")
+        assert isinstance(response, bytes)
diff --git a/tests/conftest.py b/tests/conftest.py
index e69de29..ed6bd81 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -0,0 +1,8 @@
+import pytest
+
+from pyplayht.classes import Client
+
+
+@pytest.fixture
+def client() -> Client:
+    return Client()