test: add test that invalid external ref fails if not mapped

Author: rhwood

src/test/java/com/networknt/schema/UrlMappingTest.java

@@ -130,6 +130,17 @@ public void testValidatorConfigExampleMappings() throws IOException {
         assertEquals(0, schema.validate(mapper.createObjectNode()).size());
     }
 
+    @Test
+    public void testMappingsForRef() throws IOException {
+        JsonSchemaFactory instance = JsonSchemaFactory.getInstance();
+        URL mappings = URLFactory.toURL("resource:tests/url_mapping/schema-with-ref-mapping.json");
+        SchemaValidatorsConfig config = new SchemaValidatorsConfig();
+        config.setUrlMappings(getUrlMappingsFromUrl(mappings));
+        JsonSchema schema = instance.getSchema(URLFactory.toURL("resource:tests/url_mapping/schema-with-ref.json"),
+                config);
+        assertEquals(0, schema.validate(mapper.readTree(mappings)).size());
+    }
+
     private Map<URL, URL> getUrlMappingsFromUrl(URL url) throws MalformedURLException, IOException {
         HashMap<URL, URL> map = new HashMap<URL, URL>();
         for (JsonNode mapping : mapper.readTree(url)) {

src/test/resources/tests/url_mapping/schema-with-ref-mapping.json

@@ -0,0 +1,10 @@
+[
+    {
+        "publicURL": "http://json-schema.org/draft-04/schema#",
+        "localURL": "resource:/draftv4.schema.json"
+    },
+    {
+        "publicURL": "http://example.com/invalid/schema/url",
+        "localURL": "resource:/tests/url_mapping/example-schema.json"
+    }
+]

src/test/resources/tests/url_mapping/schema-with-ref.json

@@ -0,0 +1,21 @@
+{
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "title": "json-object-with-schema",
+    "type": "object",
+    "description": "A JSON object and the schema to evaluate it against",
+    "properties": {
+        "for": {
+            "type": "object",
+            "description": "The object to evaluate"
+        },
+        "schema": {
+            "$ref": "http://example.com/invalid/schema/url",
+            "description": "The Schema to evaluate the object against (using invalid URL to force failure if mapping is not correct)"
+        }
+    },
+    "additionalProperties": false,
+    "required": [
+        "for",
+        "schema"
+    ]
+}