Add additional restriction to policy schema internal (part1)

components/policy/core/common/schema_unittest.cc

Index: components/policy/core/common/schema_unittest.cc
diff --git a/components/policy/core/common/schema_unittest.cc b/components/policy/core/common/schema_unittest.cc
index 8fe58cf29bfbf889f7b77ac72f3cfc9eec9af249..6872cc847432d6c02a91f8431eade254a57dd5e2 100644
--- a/components/policy/core/common/schema_unittest.cc
+++ b/components/policy/core/common/schema_unittest.cc
@@ -61,6 +61,15 @@ bool ParseFails(const std::string& content) {
   return true;
 }
 
+std::string schemaObjectWrapper(const std::string &subschema) {
+  return "{"
+         "  \"type\": \"object\","
+         "  \"properties\": {"
+         "    \"SomePropertyName\":" + subschema +
+         "  }"
+         "}";
+}
+
 }  // namespace
 
 TEST(SchemaTest, MinimalSchema) {
@@ -682,5 +691,55 @@ TEST(SchemaTest, ItemsReference) {
   ASSERT_EQ(base::Value::TYPE_BOOLEAN, items.type());
 }
 
+TEST(SchemaTest, EnumerationRestriction) {
+  // Enum attribute is a list.
+  EXPECT_TRUE(ParseFails(schemaObjectWrapper(
+      "{"
+      "  \"type\": \"string\","
+      "  \"enum\": 12"
+      "}")));
+
+  // Empty enum attributes is not allowed.
+  EXPECT_TRUE(ParseFails(schemaObjectWrapper(
+      "{"
+      "  \"type\": \"integer\","
+      "  \"enum\": []"
+      "}")));
+
+  // Enum elements type should be same as stated.
+  EXPECT_TRUE(ParseFails(schemaObjectWrapper(
+      "{"
+      "  \"type\": \"string\","
+      "  \"enum\": [1, 2, 3]"
+      "}")));
+
+  EXPECT_FALSE(ParseFails(schemaObjectWrapper(
+      "{"
+      "  \"type\": \"integer\","
+      "  \"enum\": [1, 2, 3]"
+      "}")));
+
+  EXPECT_FALSE(ParseFails(schemaObjectWrapper(
+      "{"
+      "  \"type\": \"string\","
+      "  \"enum\": [\"1\", \"2\", \"3\"]"
+      "}")));
+}
+
+TEST(SchemaTest, RangedRestriction) {
+  EXPECT_TRUE(ParseFails(schemaObjectWrapper(
+      "{"
+      "  \"type\": \"integer\","
+      "  \"minimum\": 10,"
+      "  \"maximum\": 5"
+      "}")));
+
+  EXPECT_FALSE(ParseFails(schemaObjectWrapper(
+      "{"
+      "  \"type\": \"integer\","
+      "  \"minimum\": 10,"
+      "  \"maximum\": 20"
+      "}")));
+}
 
 }  // namespace policy