Added a validator for JSON v3 schemas.

chrome/common/json_schema/json_schema_validator_unittest.cc

Index: chrome/common/json_schema/json_schema_validator_unittest.cc
diff --git a/chrome/common/json_schema/json_schema_validator_unittest.cc b/chrome/common/json_schema/json_schema_validator_unittest.cc
index b2fdc542957a262dc5e150857510d4216334dfbd..bf43bc66fa8c2336792cf66da0930df161cd296a 100644
--- a/chrome/common/json_schema/json_schema_validator_unittest.cc
+++ b/chrome/common/json_schema/json_schema_validator_unittest.cc
@@ -50,3 +50,79 @@ class JSONSchemaValidatorCPPTest : public JSONSchemaValidatorTestBase {
 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(
+      "{ \"type\": 123 }", &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
+      "{ \"type\": \"invalid\" }", &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"object\","
+      "  \"properties\": []"  // Invalid properties type.
+      "}", &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"string\","
+      "  \"maxLength\": -1"  // Must be >= 0.
+      "}", &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"string\","
+      "  \"enum\": [ {} ],"  // "enum" must contain simple values.
+      "}", &error));
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"array\","
+      "  \"items\": [ 123 ],"  // "items" must contain a schema or schemas.
+      "}", &error));
+  EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
+      "{ \"type\": \"object\" }", &error)) << error;
+  EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
+      "{ \"type\": [\"object\", \"array\"] }", &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.\""
+      "    },"
+      "    \"integer-property\": {"
+      "      \"type\": \"number\","
+      "      \"minimum\": 1000.0,"
+      "      \"maximum\": 9999.0"
+      "    },"
+      "    \"enum-property\": {"
+      "      \"type\": \"integer\","
+      "      \"enum\": [0, 1, 10, 100]"
+      "    },"
+      "    \"items-property\": {"
+      "      \"type\": \"array\","
+      "      \"items\": {"
+      "        \"type\": \"string\""
+      "      }"
+      "    },"
+      "    \"items-list-property\": {"
+      "      \"type\": \"array\","
+      "      \"items\": ["
+      "        { \"type\": \"string\" },"
+      "        { \"type\": \"integer\" }"
+      "      ]"
+      "    }"
+      "  },"
+      "  \"additionalProperties\": {"
+      "    \"type\": \"any\""
+      "  }"
+      "}", &error)) << error;
+}