TESTS: add test for custom proxy-wide configuration

test2/test_custom/my_custom_proxy_settings.conf

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+add_header  X-test  f00;

test2/test_custom/test_custom-proxy-wide.py

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+import pytest
+
+def test_custom_conf_does_not_apply_to_unknown_vhost(docker_compose, nginxproxy):
+    r = nginxproxy.get("http://nginx-proxy/")
+    assert r.status_code == 503
+    assert "X-test" not in r.headers
+
+def test_custom_conf_applies_to_web1(docker_compose, nginxproxy):
+    r = nginxproxy.get("http://web1.nginx-proxy.local/port")
+    assert r.status_code == 200   
+    assert r.text == "answer from port 81\n"
+    assert "X-test" in r.headers
+    assert "f00" == r.headers["X-test"]
+
+def test_custom_conf_applies_to_web2(docker_compose, nginxproxy):
+    r = nginxproxy.get("http://web2.nginx-proxy.local/port")
+    assert r.status_code == 200   
+    assert r.text == "answer from port 82\n"
+    assert "X-test" in r.headers
+    assert "f00" == r.headers["X-test"]

test2/test_custom/test_custom-proxy-wide.yml

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+version: '2'
+services:
+  nginx-proxy:
+    image: jwilder/nginx-proxy:test
+    volumes:
+      - /var/run/docker.sock:/tmp/docker.sock:ro
+      - ./my_custom_proxy_settings.conf:/etc/nginx/conf.d/my_custom_proxy_settings.conf:ro
+
+  web1:
+    image: web 
+    expose:
+      - "81"
+    environment:
+      WEB_PORTS: 81
+      VIRTUAL_HOST: web1.nginx-proxy.local
+
+  web2:
+    image: web 
+    expose:
+      - "82"
+    environment:
+      WEB_PORTS: 82
+      VIRTUAL_HOST: web2.nginx-proxy.local