Ignore unknown attributes when parsing JSON schemas.

components/json_schema/json_schema_validator_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/values.h"
 #include "components/json_schema/json_schema_validator.h"
 #include "components/json_schema/json_schema_validator_unittest_base.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class JSONSchemaValidatorCPPTest : public JSONSchemaValidatorTestBase {
@@ skipping 36 matching lines @@
         << test_source;
   }
 };
 
 TEST_F(JSONSchemaValidatorCPPTest, Test) {
   RunTests();
 }
 
 TEST(JSONSchemaValidator, IsValidSchema) {
   std::string error;
-  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("", &error));
-  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("\0", &error));
-  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("string", &error));
-  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("\"string\"", &error));
-  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("[]", &error));
-  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("{}", &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("", false, &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("\0", false, &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("string", false, &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("\"string\"", false, &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("[]", false, &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema("{}", false, &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
-      "{ \"type\": 123 }", &error));
+      "{ \"type\": 123 }", false, &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
-      "{ \"type\": \"invalid\" }", &error));
+      "{ \"type\": \"invalid\" }", false, &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"object\","
       "  \"properties\": []"  // Invalid properties type.
-      "}", &error));
+      "}", false, &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"string\","
       "  \"maxLength\": -1"  // Must be >= 0.
-      "}", &error));
+      "}", false, &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"string\","
       "  \"enum\": [ {} ]"  // "enum" dict values must contain "name".
-      "}", &error));
+      "}", false, &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"string\","
       "  \"enum\": [ { \"name\": {} } ]"  // "enum" name must be a simple value.
-      "}",
-      &error));
+      "}", false, &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"array\","
       "  \"items\": [ 123 ],"  // "items" must contain a schema or schemas.
-      "}", &error));
+      "}", false, &error));
   EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
-      "{ \"type\": \"object\" }", &error)) << error;
+      "{ \"type\": \"object\" }", false, &error)) << error;
   EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
-      "{ \"type\": [\"object\", \"array\"] }", &error)) << error;
+      "{ \"type\": [\"object\", \"array\"] }", false, &error)) << error;
   EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": [\"object\", \"array\"],"
       "  \"properties\": {"
       "    \"string-property\": {"
       "      \"type\": \"string\","
       "      \"minLength\": 1,"
       "      \"maxLength\": 100,"
       "      \"title\": \"The String Policy\","
       "      \"description\": \"This policy controls the String widget.\""
@@ skipping 17 matching lines @@
       "      \"type\": \"array\","
       "      \"items\": ["
       "        { \"type\": \"string\" },"
       "        { \"type\": \"integer\" }"
       "      ]"
       "    }"
       "  },"
       "  \"additionalProperties\": {"
       "    \"type\": \"any\""
       "  }"
-      "}", &error)) << error;
+      "}", false, &error)) << error;
+  EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"object\","
+      "  \"unknown attribute\": \"that should just be ignored\""
+      "}", true, &error)) << error;
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"object\","
+      "  \"unknown attribute\": \"that will cause a failure\""
+      "}", false, &error)) << error;
 }