Added a PolicySchema class.

chrome/browser/policy/policy_schema_unittest.cc

+// Copyright (c) 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 "chrome/browser/policy/policy_schema.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace policy {
+
+namespace {
+
+#define SCHEMA_VERSION "\"$schema\":\"http://json-schema.org/draft-03/schema#\""
+#define OBJECT_TYPE "\"type\":\"object\""
+
+bool ParseFails(const std::string& content) {
+  std::string error;
+  scoped_ptr<PolicySchema> schema = PolicySchema::Parse(content, &error);
+  EXPECT_TRUE(schema || !error.empty());
+  return !schema;
+}
+
+}  // namespace
+
+TEST(PolicySchemaTest, MinimalSchema) {
+  EXPECT_FALSE(ParseFails(
+      "{"
+        SCHEMA_VERSION ","
+        OBJECT_TYPE
+      "}"));
+}
+
+TEST(PolicySchemaTest, InvalidSchemas) {
+  EXPECT_TRUE(ParseFails(""));
+  EXPECT_TRUE(ParseFails("omg"));
+  EXPECT_TRUE(ParseFails("\"omg\""));
+  EXPECT_TRUE(ParseFails("123"));
+  EXPECT_TRUE(ParseFails("[]"));
+  EXPECT_TRUE(ParseFails("null"));
+  EXPECT_TRUE(ParseFails("{}"));
+  EXPECT_TRUE(ParseFails("{" SCHEMA_VERSION "}"));
+  EXPECT_TRUE(ParseFails("{" OBJECT_TYPE "}"));
+
+  EXPECT_TRUE(ParseFails(
+      "{"
+        SCHEMA_VERSION ","
+        OBJECT_TYPE ","
+        "\"additionalProperties\": { \"type\":\"object\" }"
+      "}"));
+
+  EXPECT_TRUE(ParseFails(
+      "{"
+        SCHEMA_VERSION ","
+        OBJECT_TYPE ","
+        "\"patternProperties\": { \"a+b*\": { \"type\": \"object\" } }"
+      "}"));
+
+  EXPECT_TRUE(ParseFails(
+      "{"
+        SCHEMA_VERSION ","
+        OBJECT_TYPE ","
+        "\"properties\": { \"Policy\": { \"type\": \"bogus\" } }"
+      "}"));
+
+  EXPECT_TRUE(ParseFails(
+      "{"
+        SCHEMA_VERSION ","
+        OBJECT_TYPE ","
+        "\"properties\": { \"Policy\": { \"type\": [\"string\", \"number\"] } }"
+      "}"));
+
+  EXPECT_TRUE(ParseFails(
+      "{"
+        SCHEMA_VERSION ","
+        OBJECT_TYPE ","
+        "\"properties\": { \"Policy\": { \"type\": \"any\" } }"
+      "}"));
+}
+
+TEST(PolicySchemaTest, ValidSchema) {
+  std::string error;
+  scoped_ptr<PolicySchema> schema = PolicySchema::Parse(
+      "{"
+        SCHEMA_VERSION ","
+        OBJECT_TYPE ","
+        "\"properties\": {"
+        "  \"Boolean\": { \"type\": \"boolean\" },"
+        "  \"Integer\": { \"type\": \"integer\" },"
+        "  \"Null\": { \"type\": \"null\" },"
+        "  \"Number\": { \"type\": \"number\" },"
+        "  \"String\": { \"type\": \"string\" },"
+        "  \"Array\": {"
+        "    \"type\": \"array\","
+        "    \"items\": { \"type\": \"string\" }"
+        "  },"
+        "  \"ArrayOfObjects\": {"
+        "    \"type\": \"array\","
+        "    \"items\": {"
+        "      \"type\": \"object\","
+        "      \"properties\": {"
+        "        \"one\": { \"type\": \"string\" },"
+        "        \"two\": { \"type\": \"integer\" }"
+        "      }"
+        "    }"
+        "  },"
+        "  \"ArrayOfArray\": {"
+        "    \"type\": \"array\","
+        "    \"items\": {"
+        "      \"type\": \"array\","
+        "      \"items\": { \"type\": \"string\" }"
+        "    }"
+        "  },"
+        "  \"Object\": {"
+        "    \"type\": \"object\","
+        "    \"properties\": {"
+        "      \"one\": { \"type\": \"boolean\" },"
+        "      \"two\": { \"type\": \"integer\" }"
+        "    },"
+        "    \"additionalProperties\": { \"type\": \"string\" }"
+        "  }"
+        "}"
+      "}", &error);
+  ASSERT_TRUE(schema) << error;
+
+  ASSERT_EQ(base::Value::TYPE_DICTIONARY, schema->type());
+  EXPECT_FALSE(schema->GetSchemaForProperty("invalid"));
+
+  const PolicySchema* sub = schema->GetSchemaForProperty("Boolean");
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_BOOLEAN, sub->type());
+
+  sub = schema->GetSchemaForProperty("Integer");
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_INTEGER, sub->type());
+
+  sub = schema->GetSchemaForProperty("Null");
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_NULL, sub->type());
+
+  sub = schema->GetSchemaForProperty("Number");
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_DOUBLE, sub->type());
+  sub = schema->GetSchemaForProperty("String");
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_STRING, sub->type());
+
+  sub = schema->GetSchemaForProperty("Array");
+  ASSERT_TRUE(sub);
+  ASSERT_EQ(base::Value::TYPE_LIST, sub->type());
+  sub = sub->GetSchemaForItems();
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_STRING, sub->type());
+
+  sub = schema->GetSchemaForProperty("ArrayOfObjects");
+  ASSERT_TRUE(sub);
+  ASSERT_EQ(base::Value::TYPE_LIST, sub->type());
+  sub = sub->GetSchemaForItems();
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_DICTIONARY, sub->type());
+  const PolicySchema* subsub = sub->GetSchemaForProperty("one");
+  ASSERT_TRUE(subsub);
+  EXPECT_EQ(base::Value::TYPE_STRING, subsub->type());
+  subsub = sub->GetSchemaForProperty("two");
+  ASSERT_TRUE(subsub);
+  EXPECT_EQ(base::Value::TYPE_INTEGER, subsub->type());
+  subsub = sub->GetSchemaForProperty("invalid");
+  EXPECT_FALSE(subsub);
+
+  sub = schema->GetSchemaForProperty("ArrayOfArray");
+  ASSERT_TRUE(sub);
+  ASSERT_EQ(base::Value::TYPE_LIST, sub->type());
+  sub = sub->GetSchemaForItems();
+  ASSERT_TRUE(sub);
+  ASSERT_EQ(base::Value::TYPE_LIST, sub->type());
+  sub = sub->GetSchemaForItems();
+  ASSERT_TRUE(sub);
+  EXPECT_EQ(base::Value::TYPE_STRING, sub->type());
+
+  sub = schema->GetSchemaForProperty("Object");
+  ASSERT_TRUE(sub);
+  ASSERT_EQ(base::Value::TYPE_DICTIONARY, sub->type());
+  subsub = sub->GetSchemaForProperty("one");
+  ASSERT_TRUE(subsub);
+  EXPECT_EQ(base::Value::TYPE_BOOLEAN, subsub->type());
+  subsub = sub->GetSchemaForProperty("two");
+  ASSERT_TRUE(subsub);
+  EXPECT_EQ(base::Value::TYPE_INTEGER, subsub->type());
+  subsub = sub->GetSchemaForProperty("undeclared");
+  ASSERT_TRUE(subsub);
+  EXPECT_EQ(base::Value::TYPE_STRING, subsub->type());
+}
+
+}  // namespace policy