Implementing web server tests for built docker image

tests/run-webserver.py

@@ -0,0 +1,33 @@
+import pytest
+import requests
+import docker
+import time
+from os import environ
+
+
+def wait_for_webserver(max_retries: int) -> requests.Response:
+    for i in range(max_retries):
+        try:
+            response = requests.get("http://localhost:8080")
+            response.raise_for_status()
+            return response
+        except requests.exceptions.ConnectionError:
+            time.sleep(1)
+    else:
+        pytest.fail("Failed to connect to the webserver")
+
+
+def test_webserver() -> None:
+    client = docker.from_env()
+    container = client.containers.run(
+        environ["GCUPS_DOCKER_IMAGE"],
+        ports={"8080/tcp": 8080},
+        detach=True,
+        remove=True,
+    )
+
+    server_response = wait_for_webserver(30)
+    assert server_response.status_code == 200
+
+    container.kill()
+    client.close()