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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/socket.h>
#include <string>
#include <android-base/unique_fd.h>
#include <gtest/gtest.h>
#include "adb_io.h"
#include "fuse_adb_provider.h"
TEST(fuse_adb_provider, read_block_adb) {
android::base::unique_fd device_socket;
android::base::unique_fd host_socket;
ASSERT_TRUE(android::base::Socketpair(AF_UNIX, SOCK_STREAM, 0, &device_socket, &host_socket));
FuseAdbDataProvider data(std::move(device_socket), 0, 0);
fcntl(host_socket, F_SETFL, O_NONBLOCK);
const char expected_data[] = "foobar";
char block_data[sizeof(expected_data)] = {};
// If we write the result of read_block_adb's request before the request is
// actually made we can avoid needing an extra thread for this test.
ASSERT_TRUE(WriteFdExactly(host_socket, expected_data,
strlen(expected_data)));
uint32_t block = 1234U;
const char expected_block[] = "00001234";
ASSERT_TRUE(data.ReadBlockAlignedData(reinterpret_cast<uint8_t*>(block_data),
sizeof(expected_data) - 1, block));
// Check that read_block_adb requested the right block.
char block_req[sizeof(expected_block)] = {};
ASSERT_TRUE(ReadFdExactly(host_socket, block_req, 8));
ASSERT_EQ(0, block_req[8]);
ASSERT_EQ(8U, strlen(block_req));
ASSERT_STREQ(expected_block, block_req);
// Check that read_block_adb returned the right data.
ASSERT_EQ(0, block_req[8]);
ASSERT_STREQ(expected_data, block_data);
// Check that nothing else was written to the socket.
char tmp;
errno = 0;
ASSERT_EQ(-1, read(host_socket, &tmp, 1));
ASSERT_EQ(EWOULDBLOCK, errno);
}
TEST(fuse_adb_provider, read_block_adb_fail_write) {
android::base::unique_fd device_socket;
android::base::unique_fd host_socket;
ASSERT_TRUE(android::base::Socketpair(AF_UNIX, SOCK_STREAM, 0, &device_socket, &host_socket));
FuseAdbDataProvider data(std::move(device_socket), 0, 0);
host_socket.reset();
// write(2) raises SIGPIPE since the reading end has been closed. Ignore the signal to avoid
// failing the test.
signal(SIGPIPE, SIG_IGN);
char buf[1];
ASSERT_FALSE(data.ReadBlockAlignedData(reinterpret_cast<uint8_t*>(buf), 1, 0));
}
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