1 /* 2 * Copyright (C) 2019 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 <android-base/file.h> 18 #include <android-base/logging.h> 19 #include <android-base/strings.h> 20 21 #include <gtest/gtest.h> 22 #include <filesystem> 23 #include <memory> 24 25 #include <ApexProperties.sysprop.h> 26 #include "apex_constants.h" 27 #include "apex_shim.h" 28 #include "apexd_utils.h" 29 #include "string_log.h" 30 31 namespace android { 32 namespace apex { 33 34 TEST(FlattenedApexTest, SysPropIsFalse) { 35 bool value = android::sysprop::ApexProperties::updatable().value_or(false); 36 ASSERT_FALSE(value); 37 } 38 39 TEST(FlattenedApexTest, ApexFilesAreFlattened) { 40 namespace fs = std::filesystem; 41 auto assert_is_dir = [&](const fs::directory_entry& entry) { 42 if (entry.path().filename() == shim::kSystemShimApexName) { 43 return; 44 } 45 std::error_code ec; 46 bool is_dir = entry.is_directory(ec); 47 ASSERT_FALSE(ec) << ec.message(); 48 ASSERT_TRUE(is_dir) << entry.path() << " is not a directory"; 49 }; 50 WalkDir(kApexPackageSystemDir, assert_is_dir); 51 } 52 53 TEST(FlattenedApexTest, MountsAreCorrect) { 54 using android::base::ReadFileToString; 55 using android::base::Split; 56 std::string mounts; 57 ASSERT_TRUE(ReadFileToString("/proc/self/mountinfo", &mounts)); 58 bool has_apex_mount = false; 59 for (const auto& mount : Split(mounts, "\n")) { 60 const std::vector<std::string>& tokens = Split(mount, " "); 61 // line format: 62 // mnt_id parent_mnt_id major:minor source target option propagation_type 63 if (tokens.size() < 7) { 64 continue; 65 } 66 const std::string& source = tokens[3]; 67 const std::string& target = tokens[4]; 68 if (source == kApexPackageSystemDir && target == "/apex") { 69 has_apex_mount = true; 70 } 71 } 72 ASSERT_TRUE(has_apex_mount) << "Failed to find apex mount point"; 73 } 74 75 TEST(FlattenedApexTest, ApexdIsNotRunning) { 76 constexpr const char* kCmd = "pidof -s apexd"; 77 std::unique_ptr<FILE, int (*)(FILE*)> pipe(popen(kCmd, "r"), pclose); 78 ASSERT_NE(nullptr, pipe) << "Failed to open pipe for: " << kCmd; 79 char buf[1024]; 80 if (fgets(buf, 1024, pipe.get()) != nullptr) { 81 FAIL() << "apexd is running and has pid " << buf; 82 } 83 } 84 85 } // namespace apex 86 } // namespace android 87 88 int main(int argc, char** argv) { 89 android::base::InitLogging(argv, &android::base::StderrLogger); 90 ::testing::InitGoogleTest(&argc, argv); 91 return RUN_ALL_TESTS(); 92 } 93