Merge "Add unit tests for simulator"
am: 4955648c4c
Change-Id: Ibf7c9092ea71f166c38f7feb644892d96f1da64c
diff --git a/tests/Android.bp b/tests/Android.bp
index 4969c08..fec2f07 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -157,26 +157,22 @@
defaults: [
"recovery_test_defaults",
+ "libupdater_defaults",
],
srcs: [
- "unit/imgdiff_test.cpp",
+ "unit/host/*",
],
static_libs: [
+ "libupdater_host",
+ "libupdater_core",
"libimgdiff",
- "libimgpatch",
- "libotautil",
"libbsdiff",
- "libbspatch",
- "libziparchive",
- "libutils",
- "libcrypto",
- "libbrotli",
- "libbz",
"libdivsufsort64",
"libdivsufsort",
- "libz",
+ "libfstab",
+ "libc++fs",
],
test_suites: ["general-tests"],
diff --git a/tests/unit/imgdiff_test.cpp b/tests/unit/host/imgdiff_test.cpp
similarity index 100%
rename from tests/unit/imgdiff_test.cpp
rename to tests/unit/host/imgdiff_test.cpp
diff --git a/tests/unit/host/update_simulator_test.cpp b/tests/unit/host/update_simulator_test.cpp
new file mode 100644
index 0000000..bf89b78
--- /dev/null
+++ b/tests/unit/host/update_simulator_test.cpp
@@ -0,0 +1,403 @@
+/*
+ * Copyright (C) 2019 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 <stdint.h>
+#include <stdio.h>
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include <android-base/file.h>
+#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
+#include <bsdiff/bsdiff.h>
+#include <gtest/gtest.h>
+#include <ziparchive/zip_writer.h>
+
+#include "otautil/paths.h"
+#include "otautil/print_sha1.h"
+#include "updater/blockimg.h"
+#include "updater/build_info.h"
+#include "updater/install.h"
+#include "updater/simulator_runtime.h"
+#include "updater/target_files.h"
+#include "updater/updater.h"
+
+using std::string;
+
+// echo -n "system.img" > system.img && img2simg system.img sparse_system_string_.img 4096 &&
+// hexdump -v -e '" " 12/1 "0x%02x, " "\n"' sparse_system_string_.img
+// The total size of the result sparse image is 4136 bytes; and we can append 0s in the end to get
+// the full image.
+constexpr uint8_t SPARSE_SYSTEM_HEADER[] = {
+ 0x3a, 0xff, 0x26, 0xed, 0x01, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x0c, 0x00, 0x00, 0x10, 0x00,
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc1, 0xca,
+ 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x0c, 0x10, 0x00, 0x00, 0x73, 0x79, 0x73, 0x74, 0x65,
+ 0x6d, 0x2e, 0x69, 0x6d, 0x67, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+static void AddZipEntries(int fd, const std::map<string, string>& entries) {
+ FILE* zip_file = fdopen(fd, "w");
+ ZipWriter writer(zip_file);
+ for (const auto& pair : entries) {
+ ASSERT_EQ(0, writer.StartEntry(pair.first.c_str(), 0));
+ ASSERT_EQ(0, writer.WriteBytes(pair.second.data(), pair.second.size()));
+ ASSERT_EQ(0, writer.FinishEntry());
+ }
+ ASSERT_EQ(0, writer.Finish());
+ ASSERT_EQ(0, fclose(zip_file));
+}
+
+static string CalculateSha1(const string& data) {
+ uint8_t digest[SHA_DIGEST_LENGTH];
+ SHA1(reinterpret_cast<const uint8_t*>(data.c_str()), data.size(), digest);
+ return print_sha1(digest);
+}
+
+static void CreateBsdiffPatch(const string& src, const string& tgt, string* patch) {
+ TemporaryFile patch_file;
+ ASSERT_EQ(0, bsdiff::bsdiff(reinterpret_cast<const uint8_t*>(src.data()), src.size(),
+ reinterpret_cast<const uint8_t*>(tgt.data()), tgt.size(),
+ patch_file.path, nullptr));
+ ASSERT_TRUE(android::base::ReadFileToString(patch_file.path, patch));
+}
+
+static void RunSimulation(std::string_view src_tf, std::string_view ota_package, bool expected) {
+ TemporaryFile cmd_pipe;
+ TemporaryFile temp_saved_source;
+ TemporaryFile temp_last_command;
+ TemporaryDir temp_stash_base;
+
+ Paths::Get().set_cache_temp_source(temp_saved_source.path);
+ Paths::Get().set_last_command_file(temp_last_command.path);
+ Paths::Get().set_stash_directory_base(temp_stash_base.path);
+
+ // Configure edify's functions.
+ RegisterBuiltins();
+ RegisterInstallFunctions();
+ RegisterBlockImageFunctions();
+
+ // Run the update simulation and check the result.
+ TemporaryDir work_dir;
+ BuildInfo build_info(work_dir.path);
+ ASSERT_TRUE(build_info.ParseTargetFile(src_tf, false));
+ Updater updater(std::make_unique<SimulatorRuntime>(&build_info));
+ ASSERT_TRUE(updater.Init(cmd_pipe.release(), ota_package, false));
+ ASSERT_EQ(expected, updater.RunUpdate());
+ // TODO(xunchang) check the recovery&system has the expected contents.
+}
+
+class UpdateSimulatorTest : public ::testing::Test {
+ protected:
+ void SetUp() override {
+ std::vector<string> props = {
+ "import /oem/oem.prop oem*",
+ "# begin build properties",
+ "# autogenerated by buildinfo.sh",
+ "ro.build.id=OPR1.170510.001",
+ "ro.build.display.id=OPR1.170510.001 dev-keys",
+ "ro.build.version.incremental=3993052",
+ "ro.build.version.release=O",
+ "ro.build.date=Wed May 10 11:10:29 UTC 2017",
+ "ro.build.date.utc=1494414629",
+ "ro.build.type=user",
+ "ro.build.tags=dev-keys",
+ "ro.build.flavor=angler-user",
+ "ro.product.system.brand=google",
+ "ro.product.system.name=angler",
+ "ro.product.system.device=angler",
+ };
+ build_prop_string_ = android::base::Join(props, "\n");
+
+ fstab_content_ = R"(
+#<src> <mnt_point> <type> <mnt_flags and options> <fs_mgr_flags>
+# More comments.....
+
+/dev/block/by-name/system /system ext4 ro,barrier=1 wait
+/dev/block/by-name/vendor /vendor ext4 ro wait,verify=/dev/metadata
+/dev/block/by-name/cache /cache ext4 noatime,errors=panic wait,check
+/dev/block/by-name/modem /firmware vfat ro,uid=1000,gid=1000, wait
+/dev/block/by-name/boot /boot emmc defaults defaults
+/dev/block/by-name/recovery /recovery emmc defaults defaults
+/dev/block/by-name/misc /misc emmc defaults
+/dev/block/by-name/modem /modem emmc defaults defaults)";
+
+ raw_system_string_ = "system.img" + string(4086, '\0'); // raw image is 4096 bytes in total
+ sparse_system_string_ = string(SPARSE_SYSTEM_HEADER, std::end(SPARSE_SYSTEM_HEADER)) +
+ string(4136 - sizeof(SPARSE_SYSTEM_HEADER), '\0');
+ }
+
+ string build_prop_string_;
+ string fstab_content_;
+ string raw_system_string_;
+ string sparse_system_string_;
+};
+
+TEST_F(UpdateSimulatorTest, TargetFile_ExtractImage) {
+ TemporaryFile zip_file;
+ AddZipEntries(zip_file.release(), { { "META/misc_info.txt", "extfs_sparse_flag=-s" },
+ { "IMAGES/system.img", sparse_system_string_ } });
+ TargetFile target_file(zip_file.path, false);
+ ASSERT_TRUE(target_file.Open());
+
+ TemporaryDir temp_dir;
+ TemporaryFile raw_image;
+ ASSERT_TRUE(target_file.ExtractImage(
+ "IMAGES/system.img", FstabInfo("/dev/system", "system", "ext4"), temp_dir.path, &raw_image));
+
+ // Check the raw image has expected contents.
+ string content;
+ ASSERT_TRUE(android::base::ReadFileToString(raw_image.path, &content));
+ string expected_content = "system.img" + string(4086, '\0');
+ ASSERT_EQ(expected_content, content);
+}
+
+TEST_F(UpdateSimulatorTest, TargetFile_ParseFstabInfo) {
+ TemporaryFile zip_file;
+ AddZipEntries(zip_file.release(),
+ { { "META/misc_info.txt", "" },
+ { "RECOVERY/RAMDISK/system/etc/recovery.fstab", fstab_content_ } });
+ TargetFile target_file(zip_file.path, false);
+ ASSERT_TRUE(target_file.Open());
+
+ std::vector<FstabInfo> fstab_info;
+ EXPECT_TRUE(target_file.ParseFstabInfo(&fstab_info));
+
+ std::vector<std::vector<string>> transformed;
+ std::transform(fstab_info.begin(), fstab_info.end(), std::back_inserter(transformed),
+ [](const FstabInfo& info) {
+ return std::vector<string>{ info.blockdev_name, info.mount_point, info.fs_type };
+ });
+
+ std::vector<std::vector<string>> expected = {
+ { "/dev/block/by-name/system", "/system", "ext4" },
+ { "/dev/block/by-name/vendor", "/vendor", "ext4" },
+ { "/dev/block/by-name/cache", "/cache", "ext4" },
+ { "/dev/block/by-name/boot", "/boot", "emmc" },
+ { "/dev/block/by-name/recovery", "/recovery", "emmc" },
+ { "/dev/block/by-name/misc", "/misc", "emmc" },
+ { "/dev/block/by-name/modem", "/modem", "emmc" },
+ };
+ EXPECT_EQ(expected, transformed);
+}
+
+TEST_F(UpdateSimulatorTest, BuildInfo_ParseTargetFile) {
+ std::map<string, string> entries = {
+ { "META/misc_info.txt", "" },
+ { "SYSTEM/build.prop", build_prop_string_ },
+ { "RECOVERY/RAMDISK/system/etc/recovery.fstab", fstab_content_ },
+ { "IMAGES/recovery.img", "" },
+ { "IMAGES/boot.img", "" },
+ { "IMAGES/misc.img", "" },
+ { "IMAGES/system.map", "" },
+ { "IMAGES/system.img", sparse_system_string_ },
+ };
+
+ TemporaryFile zip_file;
+ AddZipEntries(zip_file.release(), entries);
+
+ TemporaryDir temp_dir;
+ BuildInfo build_info(temp_dir.path);
+ ASSERT_TRUE(build_info.ParseTargetFile(zip_file.path, false));
+
+ std::map<string, string> expected_result = {
+ { "ro.build.id", "OPR1.170510.001" },
+ { "ro.build.display.id", "OPR1.170510.001 dev-keys" },
+ { "ro.build.version.incremental", "3993052" },
+ { "ro.build.version.release", "O" },
+ { "ro.build.date", "Wed May 10 11:10:29 UTC 2017" },
+ { "ro.build.date.utc", "1494414629" },
+ { "ro.build.type", "user" },
+ { "ro.build.tags", "dev-keys" },
+ { "ro.build.flavor", "angler-user" },
+ { "ro.product.brand", "google" },
+ { "ro.product.name", "angler" },
+ { "ro.product.device", "angler" },
+ };
+
+ for (const auto& [key, value] : expected_result) {
+ ASSERT_EQ(value, build_info.GetProperty(key, ""));
+ }
+
+ // Check that the temp files for each block device are created successfully.
+ for (auto name : { "/dev/block/by-name/system", "/dev/block/by-name/recovery",
+ "/dev/block/by-name/boot", "/dev/block/by-name/misc" }) {
+ ASSERT_EQ(0, access(build_info.FindBlockDeviceName(name).c_str(), R_OK));
+ }
+}
+
+TEST_F(UpdateSimulatorTest, RunUpdateSmoke) {
+ string recovery_img_string = "recovery.img";
+ string boot_img_string = "boot.img";
+
+ std::map<string, string> src_entries{
+ { "META/misc_info.txt", "extfs_sparse_flag=-s" },
+ { "RECOVERY/RAMDISK/etc/recovery.fstab", fstab_content_ },
+ { "SYSTEM/build.prop", build_prop_string_ },
+ { "IMAGES/recovery.img", "" },
+ { "IMAGES/boot.img", boot_img_string },
+ { "IMAGES/system.img", sparse_system_string_ },
+ };
+
+ // Construct the source target-files.
+ TemporaryFile src_tf;
+ AddZipEntries(src_tf.release(), src_entries);
+
+ string recovery_from_boot;
+ CreateBsdiffPatch(boot_img_string, recovery_img_string, &recovery_from_boot);
+
+ // Set up the apply patch commands to patch the recovery image.
+ string recovery_sha1 = CalculateSha1(recovery_img_string);
+ string boot_sha1 = CalculateSha1(boot_img_string);
+ string apply_patch_source_string = android::base::StringPrintf(
+ "EMMC:/dev/block/by-name/boot:%zu:%s", boot_img_string.size(), boot_sha1.c_str());
+ string apply_patch_target_string = android::base::StringPrintf(
+ "EMMC:/dev/block/by-name/recovery:%zu:%s", recovery_img_string.size(), recovery_sha1.c_str());
+ string check_command = android::base::StringPrintf(
+ R"(patch_partition_check("%s", "%s") || abort("check failed");)",
+ apply_patch_target_string.c_str(), apply_patch_source_string.c_str());
+ string patch_command = android::base::StringPrintf(
+ R"(patch_partition("%s", "%s", package_extract_file("patch.p")) || abort("patch failed");)",
+ apply_patch_target_string.c_str(), apply_patch_source_string.c_str());
+
+ // Add the commands to update the system image. Test common commands:
+ // * getprop
+ // * ui_print
+ // * patch_partition
+ // * package_extract_file (single argument)
+ // * block_image_verify, block_image_update
+ string tgt_system_string = string(4096, 'a');
+ string system_patch;
+ CreateBsdiffPatch(raw_system_string_, tgt_system_string, &system_patch);
+
+ string tgt_system_hash = CalculateSha1(tgt_system_string);
+ string src_system_hash = CalculateSha1(raw_system_string_);
+
+ std::vector<std::string> transfer_list = {
+ "4",
+ "1",
+ "0",
+ "0",
+ android::base::StringPrintf("bsdiff 0 %zu %s %s 2,0,1 1 2,0,1", system_patch.size(),
+ src_system_hash.c_str(), tgt_system_hash.c_str()),
+ };
+
+ // Construct the updater_script.
+ std::vector<string> updater_commands = {
+ R"(getprop("ro.product.device") == "angler" || abort("This package is for \"angler\"");)",
+ R"(ui_print("Source: angler/OPR1.170510.001");)",
+ check_command,
+ patch_command,
+ R"(block_image_verify("/dev/block/by-name/system", )"
+ R"(package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") || )"
+ R"(abort("Failed to verify system.");)",
+ R"(block_image_update("/dev/block/by-name/system", )"
+ R"(package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") || )"
+ R"(abort("Failed to verify system.");)",
+ };
+ string updater_script = android::base::Join(updater_commands, '\n');
+
+ // Construct the ota update package.
+ std::map<string, string> ota_entries{
+ { "system.new.dat", "" },
+ { "system.patch.dat", system_patch },
+ { "system.transfer.list", android::base::Join(transfer_list, '\n') },
+ { "META-INF/com/google/android/updater-script", updater_script },
+ { "patch.p", recovery_from_boot },
+ };
+
+ TemporaryFile ota_package;
+ AddZipEntries(ota_package.release(), ota_entries);
+
+ RunSimulation(src_tf.path, ota_package.path, true);
+}
+
+TEST_F(UpdateSimulatorTest, RunUpdateUnrecognizedFunction) {
+ std::map<string, string> src_entries{
+ { "META/misc_info.txt", "extfs_sparse_flag=-s" },
+ { "IMAGES/system.img", sparse_system_string_ },
+ { "RECOVERY/RAMDISK/etc/recovery.fstab", fstab_content_ },
+ { "SYSTEM/build.prop", build_prop_string_ },
+ };
+
+ TemporaryFile src_tf;
+ AddZipEntries(src_tf.release(), src_entries);
+
+ std::map<string, string> ota_entries{
+ { "system.new.dat", "" },
+ { "system.patch.dat", "" },
+ { "system.transfer.list", "" },
+ { "META-INF/com/google/android/updater-script", R"(bad_function("");)" },
+ };
+
+ TemporaryFile ota_package;
+ AddZipEntries(ota_package.release(), ota_entries);
+
+ RunSimulation(src_tf.path, ota_package.path, false);
+}
+
+TEST_F(UpdateSimulatorTest, RunUpdateApplyPatchFailed) {
+ string recovery_img_string = "recovery.img";
+ string boot_img_string = "boot.img";
+
+ std::map<string, string> src_entries{
+ { "META/misc_info.txt", "extfs_sparse_flag=-s" },
+ { "IMAGES/recovery.img", "" },
+ { "IMAGES/boot.img", boot_img_string },
+ { "IMAGES/system.img", sparse_system_string_ },
+ { "RECOVERY/RAMDISK/etc/recovery.fstab", fstab_content_ },
+ { "SYSTEM/build.prop", build_prop_string_ },
+ };
+
+ TemporaryFile src_tf;
+ AddZipEntries(src_tf.release(), src_entries);
+
+ string recovery_sha1 = CalculateSha1(recovery_img_string);
+ string boot_sha1 = CalculateSha1(boot_img_string);
+ string apply_patch_source_string = android::base::StringPrintf(
+ "EMMC:/dev/block/by-name/boot:%zu:%s", boot_img_string.size(), boot_sha1.c_str());
+ string apply_patch_target_string = android::base::StringPrintf(
+ "EMMC:/dev/block/by-name/recovery:%zu:%s", recovery_img_string.size(), recovery_sha1.c_str());
+ string check_command = android::base::StringPrintf(
+ R"(patch_partition_check("%s", "%s") || abort("check failed");)",
+ apply_patch_target_string.c_str(), apply_patch_source_string.c_str());
+ string patch_command = android::base::StringPrintf(
+ R"(patch_partition("%s", "%s", package_extract_file("patch.p")) || abort("failed");)",
+ apply_patch_target_string.c_str(), apply_patch_source_string.c_str());
+
+ // Give an invalid recovery patch and expect the apply patch to fail.
+ // TODO(xunchang) check the cause code.
+ std::vector<string> updater_commands = {
+ R"(ui_print("Source: angler/OPR1.170510.001");)",
+ check_command,
+ patch_command,
+ };
+
+ string updater_script = android::base::Join(updater_commands, '\n');
+ std::map<string, string> ota_entries{
+ { "system.new.dat", "" },
+ { "system.patch.dat", "" },
+ { "system.transfer.list", "" },
+ { "META-INF/com/google/android/updater-script", updater_script },
+ { "patch.p", "random string" },
+ };
+
+ TemporaryFile ota_package;
+ AddZipEntries(ota_package.release(), ota_entries);
+
+ RunSimulation(src_tf.path, ota_package.path, false);
+}
diff --git a/updater/target_files.cpp b/updater/target_files.cpp
index 1581b25..2789683 100644
--- a/updater/target_files.cpp
+++ b/updater/target_files.cpp
@@ -132,6 +132,11 @@
return false;
}
+ if (entry.uncompressed_length == 0) {
+ content->clear();
+ return true;
+ }
+
content->resize(entry.uncompressed_length);
if (auto extract_err = ExtractToMemory(
handle_, &entry, reinterpret_cast<uint8_t*>(&content->at(0)), entry.uncompressed_length);