115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "test_utils.h"
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#include <android-base/strings.h>
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#include <android-base/test_utils.h>
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#include <cutils/sockets.h>
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#include <gtest/gtest.h>
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#include "shell_protocol.h"
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#include "sysdeps.h"
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namespace test_utils {
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// Reads raw data from |fd| until it closes or errors.
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std::string ReadRaw(android::base::borrowed_fd fd) {
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char buffer[1024];
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char *cur_ptr = buffer, *end_ptr = buffer + sizeof(buffer);
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while (1) {
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int bytes = adb_read(fd, cur_ptr, end_ptr - cur_ptr);
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if (bytes <= 0) {
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return std::string(buffer, cur_ptr);
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}
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cur_ptr += bytes;
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}
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}
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// Reads shell protocol data from |fd| until it closes or errors. Fills
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// |stdout| and |stderr| with their respective data, and returns the exit code
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// read from the protocol or -1 if an exit code packet was not received.
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int ReadShellProtocol(android::base::borrowed_fd fd, std::string* std_out, std::string* std_err) {
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int exit_code = -1;
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std_out->clear();
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std_err->clear();
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auto protocol = std::make_unique<ShellProtocol>(fd.get());
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while (protocol->Read()) {
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switch (protocol->id()) {
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case ShellProtocol::kIdStdout:
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std_out->append(protocol->data(), protocol->data_length());
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break;
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case ShellProtocol::kIdStderr:
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std_err->append(protocol->data(), protocol->data_length());
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break;
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case ShellProtocol::kIdExit:
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EXPECT_EQ(-1, exit_code) << "Multiple exit packets received";
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EXPECT_EQ(1u, protocol->data_length());
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exit_code = protocol->data()[0];
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break;
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default:
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ADD_FAILURE() << "Unidentified packet ID: " << protocol->id();
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}
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}
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return exit_code;
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}
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// Checks if each line in |lines| exists in the same order in |output|. Blank
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// lines in |output| are ignored for simplicity.
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bool ExpectLinesEqual(const std::string& output, const std::vector<std::string>& lines) {
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auto output_lines = android::base::Split(output, "\r\n");
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size_t i = 0;
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for (const std::string& line : lines) {
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// Skip empty lines in output.
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while (i < output_lines.size() && output_lines[i].empty()) {
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++i;
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}
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if (i >= output_lines.size()) {
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ADD_FAILURE() << "Ran out of output lines";
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return false;
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}
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EXPECT_EQ(output_lines[i], line);
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++i;
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}
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while (i < output_lines.size() && output_lines[i].empty()) {
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++i;
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}
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EXPECT_EQ(i, output_lines.size()) << "Found unmatched output lines";
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return true;
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}
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// Relies on the device to allocate an available port, and
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// returns it to the caller. Also returns the associated fd.
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// Existing client (LocalSocketTest) of this interface is
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// implemented only on Linux, hence using cutils.
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int GetUnassignedPort(android::base::unique_fd& fd) {
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fd.reset(socket_inaddr_any_server(0, SOCK_STREAM));
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EXPECT_NE(static_cast<cutils_socket_t>(fd.get()), INVALID_SOCKET);
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const int port = socket_get_local_port(fd.get());
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EXPECT_GT(port, 0);
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return port;
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}
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} // namespace test_utils
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