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// 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 "remoting/host/native_messaging/native_messaging_writer.h"
#include <stdint.h>
#include <memory>
#include <utility>
#include "base/json/json_reader.h"
#include "base/stl_util.h"
#include "base/values.h"
#include "remoting/host/setup/test_util.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace remoting {
class NativeMessagingWriterTest : public testing::Test {
public:
NativeMessagingWriterTest();
~NativeMessagingWriterTest() override;
void SetUp() override;
protected:
std::unique_ptr<NativeMessagingWriter> writer_;
base::File read_file_;
base::File write_file_;
};
NativeMessagingWriterTest::NativeMessagingWriterTest() {}
NativeMessagingWriterTest::~NativeMessagingWriterTest() {}
void NativeMessagingWriterTest::SetUp() {
ASSERT_TRUE(MakePipe(&read_file_, &write_file_));
writer_.reset(new NativeMessagingWriter(std::move(write_file_)));
}
TEST_F(NativeMessagingWriterTest, GoodMessage) {
base::DictionaryValue message;
message.SetInteger("foo", 42);
EXPECT_TRUE(writer_->WriteMessage(message));
// Read from the pipe and verify the content.
uint32_t length;
int read = read_file_.ReadAtCurrentPos(reinterpret_cast<char*>(&length), 4);
EXPECT_EQ(4, read);
std::string content(length, '\0');
read = read_file_.ReadAtCurrentPos(base::string_as_array(&content), length);
EXPECT_EQ(static_cast<int>(length), read);
// |content| should now contain serialized |message|.
std::unique_ptr<base::Value> written_message =
base::JSONReader::Read(content);
EXPECT_TRUE(message.Equals(written_message.get()));
// Nothing more should have been written. Close the write-end of the pipe,
// and verify the read end immediately hits EOF.
writer_.reset(nullptr);
char unused;
read = read_file_.ReadAtCurrentPos(&unused, 1);
EXPECT_LE(read, 0);
}
TEST_F(NativeMessagingWriterTest, SecondMessage) {
base::DictionaryValue message1;
base::DictionaryValue message2;
message2.SetInteger("foo", 42);
EXPECT_TRUE(writer_->WriteMessage(message1));
EXPECT_TRUE(writer_->WriteMessage(message2));
writer_.reset(nullptr);
// Read two messages.
uint32_t length;
int read;
std::string content;
for (int i = 0; i < 2; i++) {
read = read_file_.ReadAtCurrentPos(reinterpret_cast<char*>(&length), 4);
EXPECT_EQ(4, read) << "i = " << i;
content.resize(length);
read = read_file_.ReadAtCurrentPos(base::string_as_array(&content), length);
EXPECT_EQ(static_cast<int>(length), read) << "i = " << i;
}
// |content| should now contain serialized |message2|.
std::unique_ptr<base::Value> written_message2 =
base::JSONReader::Read(content);
EXPECT_TRUE(message2.Equals(written_message2.get()));
}
TEST_F(NativeMessagingWriterTest, FailedWrite) {
// Close the read end so that writing fails immediately.
read_file_.Close();
base::DictionaryValue message;
EXPECT_FALSE(writer_->WriteMessage(message));
}
} // namespace remoting
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