e2e test: upstream connection policy with HTTPS_PROXY camel proxy

t/apicast-policy-upstream-connection.t

@@ -225,3 +225,86 @@ proxy request: CONNECT test-upstream.lvh.me:$TEST_NGINX_RANDOM_PORT HTTP/1.1
 using proxy: $TEST_NGINX_HTTPS_PROXY
 proxy_response(): timeout
 --- user_files fixture=tls.pl eval
+
+=== TEST 4: Set timeouts using HTTPS Camel proxy for backend
+In this test we set some timeouts to 1s. To force a read timeout, the upstream
+returns part of the response, then waits 3s (more than the timeout defined),
+and after that, it returns the rest of the response. Backend is configured with https_proxy
+This test uses the "ignore_response" section, because we know that the response
+is not going to be complete and that makes the Test::Nginx framework raise an
+error. With "ignore_response" that error is ignored.
+--- configuration random_port env
+{
+  "services": [
+    {
+      "backend_version":  1,
+      "proxy": {
+        "api_backend": "https://test-upstream.lvh.me:$TEST_NGINX_RANDOM_PORT",
+        "proxy_rules": [
+          { "pattern": "/test", "http_method": "GET", "metric_system_name": "hits", "delta": 2 }
+        ],
+        "policy_chain": [
+          {
+            "name": "apicast.policy.upstream_connection",
+            "configuration": {
+              "connect_timeout": 1,
+              "send_timeout": 1,
+              "read_timeout": 1
+            }
+          },
+          {
+            "name": "apicast.policy.camel",
+            "configuration": {
+                "https_proxy": "$TEST_NGINX_HTTPS_PROXY"
+            }
+          },
+          {
+            "name": "apicast.policy.apicast"
+          }
+        ]
+      }
+    }
+  ]
+}
+--- backend
+  location /transactions/authrep.xml {
+    content_by_lua_block {
+      ngx.exit(ngx.OK)
+    }
+  }
+--- upstream env
+server_name test-upstream.lvh.me;
+listen $TEST_NGINX_RANDOM_PORT ssl;
+
+ssl_certificate $TEST_NGINX_SERVER_ROOT/html/server.crt;
+ssl_certificate_key $TEST_NGINX_SERVER_ROOT/html/server.key;
+
+location /test {
+    content_by_lua_block {
+      ngx.say("first part")
+      ngx.flush(true)
+      ngx.sleep(3)
+      ngx.say("yay, second part")
+    }
+
+    access_by_lua_block {
+      assert = require('luassert')
+      assert.equal('https', ngx.var.scheme)
+      assert.equal('$TEST_NGINX_RANDOM_PORT', ngx.var.server_port)
+      assert.equal('test-upstream.lvh.me', ngx.var.ssl_server_name)
+
+      local host = ngx.req.get_headers()["Host"]
+      local result = string.match(host, "^test%-upstream%.lvh%.me:")
+      assert.equals(result, "test-upstream.lvh.me:")
+    }
+}
+--- request
+GET /test?user_key=test3
+--- ignore_response
+--- more_headers
+User-Agent: Test::APIcast::Blackbox
+ETag: foobar
+--- error_log env
+using proxy: $TEST_NGINX_HTTPS_PROXY
+err: timeout
+--- user_files fixture=tls.pl eval