1 /*
2 * Copyright (C) 2021 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <sysexits.h>
18
19 #include <chrono>
20
21 #include <android-base/result-gmock.h>
22 #include <android-base/strings.h>
23 #include <gmock/gmock.h>
24 #include <gtest/gtest.h>
25
26 #include "../UtilsHost.h"
27
28 using android::base::testing::Ok;
29 using testing::Optional;
30
31 namespace android {
32
TEST(UtilsHost,ExecuteImmediately)33 TEST(UtilsHost, ExecuteImmediately) {
34 auto result = execute({"echo", "foo"}, nullptr);
35 ASSERT_TRUE(result.has_value());
36 EXPECT_THAT(result->exitCode, Optional(EX_OK));
37 EXPECT_EQ(result->stdoutStr, "foo\n");
38 }
39
40 template <typename T>
millisSince(std::chrono::time_point<T> now)41 auto millisSince(std::chrono::time_point<T> now) {
42 auto elapsed = std::chrono::system_clock::now() - now;
43 return std::chrono::duration_cast<std::chrono::milliseconds>(elapsed).count();
44 }
45
TEST(UtilsHost,ExecuteLongRunning)46 TEST(UtilsHost, ExecuteLongRunning) {
47 auto start = std::chrono::system_clock::now();
48
49 {
50 std::vector<std::string>
51 args{"sh", "-c", "sleep 0.5 && echo -n f && sleep 0.5 && echo oo && sleep 100"};
52 auto result = execute(std::move(args), [&](const CommandResult& commandResult) {
53 std::cout << millisSince(start)
54 << "ms: GOT PARTIAL COMMAND RESULT:" << commandResult.stdoutStr << std::endl;
55 return android::base::EndsWith(commandResult.stdoutStr, "\n");
56 });
57 auto elapsedMs = millisSince(start);
58 EXPECT_GE(elapsedMs, 1000);
59 EXPECT_LT(elapsedMs, 2000);
60
61 ASSERT_TRUE(result.has_value());
62 EXPECT_EQ(std::nullopt, result->exitCode);
63 EXPECT_EQ(result->stdoutStr, "foo\n");
64 }
65
66 // ~CommandResult() called, child process is killed.
67 // Assert that the second sleep does not finish.
68 EXPECT_LT(millisSince(start), 2000);
69 }
70
TEST(UtilsHost,ExecuteLongRunning2)71 TEST(UtilsHost, ExecuteLongRunning2) {
72 auto start = std::chrono::system_clock::now();
73
74 {
75 std::vector<std::string> args{"sh", "-c",
76 "sleep 2 && echo -n f && sleep 2 && echo oo && sleep 100"};
77 auto result = execute(std::move(args), [&](const CommandResult& commandResult) {
78 std::cout << millisSince(start)
79 << "ms: GOT PARTIAL COMMAND RESULT:" << commandResult.stdoutStr << std::endl;
80 return android::base::EndsWith(commandResult.stdoutStr, "\n");
81 });
82 auto elapsedMs = millisSince(start);
83 EXPECT_GE(elapsedMs, 4000);
84 EXPECT_LT(elapsedMs, 6000);
85
86 ASSERT_TRUE(result.has_value());
87 EXPECT_EQ(std::nullopt, result->exitCode);
88 EXPECT_EQ(result->stdoutStr, "foo\n");
89 }
90
91 // ~CommandResult() called, child process is killed.
92 // Assert that the second sleep does not finish.
93 EXPECT_LT(millisSince(start), 6000);
94 }
95
TEST(UtilsHost,KillWithSigKill)96 TEST(UtilsHost, KillWithSigKill) {
97 std::vector<std::string> args{"sh", "-c", "echo foo && sleep 10"};
98 auto result = execute(std::move(args), [](const CommandResult& commandResult) {
99 // FOR TEST PURPOSE ONLY. DON'T DO THIS!
100 if (commandResult.pid.has_value()) {
101 (void)kill(*commandResult.pid, SIGKILL);
102 }
103 // FOR TEST PURPOSE ONLY. DON'T DO THIS!
104 return false;
105 });
106
107 ASSERT_TRUE(result.has_value());
108 EXPECT_EQ(std::nullopt, result->exitCode);
109 EXPECT_THAT(result->signal, Optional(SIGKILL));
110 }
111
112 } // namespace android
113