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// Copyright 2014 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 "mojo/edk/system/platform_handle_dispatcher.h"
#include <stdio.h>
#include <utility>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_file.h"
#include "base/files/scoped_temp_dir.h"
#include "base/memory/ref_counted.h"
#include "mojo/edk/embedder/platform_handle_vector.h"
#include "mojo/edk/test/test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace mojo {
namespace edk {
namespace {
TEST(PlatformHandleDispatcherTest, Basic) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
static const char kHelloWorld[] = "hello world";
base::FilePath unused;
base::ScopedFILE fp(
CreateAndOpenTemporaryFileInDir(temp_dir.GetPath(), &unused));
ASSERT_TRUE(fp);
EXPECT_EQ(sizeof(kHelloWorld),
fwrite(kHelloWorld, 1, sizeof(kHelloWorld), fp.get()));
ScopedPlatformHandle h(test::PlatformHandleFromFILE(std::move(fp)));
EXPECT_FALSE(fp);
ASSERT_TRUE(h.is_valid());
scoped_refptr<PlatformHandleDispatcher> dispatcher =
PlatformHandleDispatcher::Create(std::move(h));
EXPECT_FALSE(h.is_valid());
EXPECT_EQ(Dispatcher::Type::PLATFORM_HANDLE, dispatcher->GetType());
h = dispatcher->PassPlatformHandle();
EXPECT_TRUE(h.is_valid());
fp = test::FILEFromPlatformHandle(std::move(h), "rb");
EXPECT_FALSE(h.is_valid());
EXPECT_TRUE(fp);
rewind(fp.get());
char read_buffer[1000] = {};
EXPECT_EQ(sizeof(kHelloWorld),
fread(read_buffer, 1, sizeof(read_buffer), fp.get()));
EXPECT_STREQ(kHelloWorld, read_buffer);
// Try getting the handle again. (It should fail cleanly.)
h = dispatcher->PassPlatformHandle();
EXPECT_FALSE(h.is_valid());
EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close());
}
TEST(PlatformHandleDispatcherTest, Serialization) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
static const char kFooBar[] = "foo bar";
base::FilePath unused;
base::ScopedFILE fp(
CreateAndOpenTemporaryFileInDir(temp_dir.GetPath(), &unused));
EXPECT_EQ(sizeof(kFooBar), fwrite(kFooBar, 1, sizeof(kFooBar), fp.get()));
scoped_refptr<PlatformHandleDispatcher> dispatcher =
PlatformHandleDispatcher::Create(
test::PlatformHandleFromFILE(std::move(fp)));
uint32_t num_bytes = 0;
uint32_t num_ports = 0;
uint32_t num_handles = 0;
EXPECT_TRUE(dispatcher->BeginTransit());
dispatcher->StartSerialize(&num_bytes, &num_ports, &num_handles);
EXPECT_EQ(0u, num_bytes);
EXPECT_EQ(0u, num_ports);
EXPECT_EQ(1u, num_handles);
ScopedPlatformHandleVectorPtr handles(new PlatformHandleVector(1));
EXPECT_TRUE(dispatcher->EndSerialize(nullptr, nullptr, handles->data()));
dispatcher->CompleteTransitAndClose();
EXPECT_TRUE(handles->at(0).is_valid());
ScopedPlatformHandle handle = dispatcher->PassPlatformHandle();
EXPECT_FALSE(handle.is_valid());
EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, dispatcher->Close());
dispatcher = static_cast<PlatformHandleDispatcher*>(
Dispatcher::Deserialize(Dispatcher::Type::PLATFORM_HANDLE, nullptr,
num_bytes, nullptr, num_ports, handles->data(),
1).get());
EXPECT_FALSE(handles->at(0).is_valid());
EXPECT_TRUE(dispatcher->GetType() == Dispatcher::Type::PLATFORM_HANDLE);
fp = test::FILEFromPlatformHandle(dispatcher->PassPlatformHandle(), "rb");
EXPECT_TRUE(fp);
rewind(fp.get());
char read_buffer[1000] = {};
EXPECT_EQ(sizeof(kFooBar),
fread(read_buffer, 1, sizeof(read_buffer), fp.get()));
EXPECT_STREQ(kFooBar, read_buffer);
EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close());
}
} // namespace
} // namespace edk
} // namespace mojo
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