base: Move the rest of JSONValueSerializer unit tests from c/common to base/json.

base/json/json_value_serializer_unittest.cc

Index: base/json/json_value_serializer_unittest.cc
diff --git a/base/json/json_value_serializer_unittest.cc b/base/json/json_value_serializer_unittest.cc
index c5bef813bb6c8ac92378a2b8e997d4ff42fea6e6..e510500c71f21c6bc91b89ebf93329a53b898ba8 100644
--- a/base/json/json_value_serializer_unittest.cc
+++ b/base/json/json_value_serializer_unittest.cc
@@ -11,6 +11,7 @@
 #include "base/json/json_string_value_serializer.h"
 #include "base/json/json_writer.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
@@ -369,6 +370,104 @@ TEST(JSONValueSerializerTest, JSONReaderComments) {
   ASSERT_FALSE(root.get());
 }
 
+class JSONFileValueSerializerTest : public testing::Test {
+ protected:
+  virtual void SetUp() OVERRIDE {
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+  }
+
+  base::ScopedTempDir temp_dir_;
+};
+
+TEST_F(JSONFileValueSerializerTest, Roundtrip) {
+  base::FilePath original_file_path;
+  ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &original_file_path));
+  original_file_path =
+      original_file_path.Append(FILE_PATH_LITERAL("serializer_test.json"));
+
+  ASSERT_TRUE(file_util::PathExists(original_file_path));
+
+  JSONFileValueSerializer deserializer(original_file_path);
+  scoped_ptr<Value> root;
+  root.reset(deserializer.Deserialize(NULL, NULL));
+
+  ASSERT_TRUE(root.get());
+  ASSERT_TRUE(root->IsType(Value::TYPE_DICTIONARY));
+
+  DictionaryValue* root_dict = static_cast<DictionaryValue*>(root.get());
+
+  Value* null_value = NULL;
+  ASSERT_TRUE(root_dict->Get("null", &null_value));
+  ASSERT_TRUE(null_value);
+  ASSERT_TRUE(null_value->IsType(Value::TYPE_NULL));
+
+  bool bool_value = false;
+  ASSERT_TRUE(root_dict->GetBoolean("bool", &bool_value));
+  ASSERT_TRUE(bool_value);
+
+  int int_value = 0;
+  ASSERT_TRUE(root_dict->GetInteger("int", &int_value));
+  ASSERT_EQ(42, int_value);
+
+  std::string string_value;
+  ASSERT_TRUE(root_dict->GetString("string", &string_value));
+  ASSERT_EQ("hello", string_value);
+
+  // Now try writing.
+  const base::FilePath written_file_path =
+      temp_dir_.path().Append(FILE_PATH_LITERAL("test_output.js"));
+
+  ASSERT_FALSE(file_util::PathExists(written_file_path));
+  JSONFileValueSerializer serializer(written_file_path);
+  ASSERT_TRUE(serializer.Serialize(*root));
+  ASSERT_TRUE(file_util::PathExists(written_file_path));
+
+  // Now compare file contents.
+  EXPECT_TRUE(file_util::TextContentsEqual(original_file_path,
+                                           written_file_path));
+  EXPECT_TRUE(file_util::Delete(written_file_path, false));
+}
+
+TEST_F(JSONFileValueSerializerTest, RoundtripNested) {
+  base::FilePath original_file_path;
+  ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &original_file_path));
+  original_file_path = original_file_path.Append(
+      FILE_PATH_LITERAL("serializer_nested_test.json"));
+
+  ASSERT_TRUE(file_util::PathExists(original_file_path));
+
+  JSONFileValueSerializer deserializer(original_file_path);
+  scoped_ptr<Value> root;
+  root.reset(deserializer.Deserialize(NULL, NULL));
+  ASSERT_TRUE(root.get());
+
+  // Now try writing.
+  base::FilePath written_file_path = temp_dir_.path().Append(
+      FILE_PATH_LITERAL("test_output.json"));
+
+  ASSERT_FALSE(file_util::PathExists(written_file_path));
+  JSONFileValueSerializer serializer(written_file_path);
+  ASSERT_TRUE(serializer.Serialize(*root));
+  ASSERT_TRUE(file_util::PathExists(written_file_path));
+
+  // Now compare file contents.
+  EXPECT_TRUE(file_util::TextContentsEqual(original_file_path,
+                                           written_file_path));
+  EXPECT_TRUE(file_util::Delete(written_file_path, false));
+}
+
+TEST_F(JSONFileValueSerializerTest, NoWhitespace) {
+  base::FilePath source_file_path;
+  ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &source_file_path));
+  source_file_path = source_file_path.Append(
+      FILE_PATH_LITERAL("serializer_test_nowhitespace.json"));
+  ASSERT_TRUE(file_util::PathExists(source_file_path));
+  JSONFileValueSerializer serializer(source_file_path);
+  scoped_ptr<Value> root;
+  root.reset(serializer.Deserialize(NULL, NULL));
+  ASSERT_TRUE(root.get());
+}
+
 }  // namespace
 
 }  // namespace base