Add test to demonstrate OpenAPI v3.0 schema validation fails with empty Path properties

Author: thejamescollins

Makefile

@@ -24,11 +24,13 @@ test:
 	php $(PHPARGS) $(XPHPARGS) vendor/bin/phpunit --verbose --colors=always $(TESTCASE)
 	php $(PHPARGS) $(XPHPARGS) bin/php-openapi validate tests/spec/data/recursion.json
 	php $(PHPARGS) $(XPHPARGS) bin/php-openapi validate tests/spec/data/recursion2.yaml
+	php $(PHPARGS) $(XPHPARGS) bin/php-openapi validate tests/spec/data/empty-maps.json
 
 lint:
 	php $(PHPARGS) $(XPHPARGS) bin/php-openapi validate tests/spec/data/reference/playlist.json
 	php $(PHPARGS) $(XPHPARGS) bin/php-openapi validate tests/spec/data/recursion.json
 	php $(PHPARGS) $(XPHPARGS) bin/php-openapi validate tests/spec/data/recursion2.yaml
+	php $(PHPARGS) $(XPHPARGS) bin/php-openapi validate tests/spec/data/empty-maps.json
 	node_modules/.bin/speccy lint tests/spec/data/reference/playlist.json
 	node_modules/.bin/speccy lint tests/spec/data/recursion.json
 

tests/spec/data/empty-maps.json

@@ -0,0 +1,22 @@
+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "test",
+    "version": "1.0"
+  },
+  "paths": {
+    "/products": {
+      "description": "default",
+      "get": {
+        "responses": {
+          "200": {
+            "description": "Products",
+            "headers": {},
+            "content": {},
+            "links": {}
+          }
+        }
+      }
+    }
+  }
+}