test: re-organize test files

test/test_ports/test_default-80.py

@@ -0,0 +1,7 @@
+import pytest
+
+
+def test_answer_is_served_from_port_80_by_default(docker_compose, nginxproxy):
+    r = nginxproxy.get("http://web.nginx-proxy.tld/port")
+    assert r.status_code == 200
+    assert "answer from port 80\n" in r.text