t: test maintenance mode policy

t/apicast-policy-maintenance-mode.t

@@ -0,0 +1,91 @@
+use lib 't';
+use Test::APIcast::Blackbox 'no_plan';
+
+repeat_each(1);
+run_tests();
+
+__DATA__
+
+=== TEST 1: Use maintenance mode using default values
+Testing 3 things:
+1) Check default status code
+2) Check default response message
+3) TODO - validate upstream doesn't get the request
+
+--- configuration
+{
+  "services": [
+    {
+      "id": 42,
+      "backend_version":  1,
+      "backend_authentication_type": "service_token",
+      "backend_authentication_value": "token-value",
+      "proxy": {
+        "policy_chain": [
+          { "name": "apicast.policy.maintenance_mode" },
+          { "name": "apicast.policy.apicast" }
+        ],
+        "api_backend": "http://test:$TEST_NGINX_SERVER_PORT/",
+        "proxy_rules": [
+          { "pattern": "/", "http_method": "GET", "metric_system_name": "hits", "delta": 2 }
+        ]
+      }
+    }
+  ]
+}
+--- upstream
+  location / {
+     echo 'No response from me!';
+  }
+--- request
+GET /
+--- response_body 
+503 Service Unavailable - Maintenance
+--- error_code: 503
+--- no_error_log
+[error]
+
+
+=== TEST 2: Use maintenance mode using custom values
+Testing 3 things:
+1) Check custom status code
+2) Check custom response message
+3) TODO - validate upstream doesn't get request
+
+--- configuration
+{
+  "services": [
+    {
+      "id": 42,
+      "backend_version":  1,
+      "backend_authentication_type": "service_token",
+      "backend_authentication_value": "token-value",
+      "proxy": {
+        "policy_chain": [
+        { "name": "apicast.policy.maintenance_mode",
+          	"configuration": {
+				"message": "Be back soon",
+				"status": 501
+			} 
+		},
+          { "name": "apicast.policy.apicast" }
+        ],
+        "api_backend": "http://test:$TEST_NGINX_SERVER_PORT/",
+        "proxy_rules": [
+          { "pattern": "/", "http_method": "GET", "metric_system_name": "hits", "delta": 2 }
+        ]
+      }
+    }
+  ]
+}
+--- upstream
+  location / {
+     echo 'No response from me!';
+  }
+--- request
+GET /
+--- response_body 
+Be back soon
+--- error_code: 501
+--- no_error_log
+[error]