tests/component/applypatch_test.cpp - android_bootable_recovery - Gitiles

 /*
  * Copyright (C) 2016 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 agree 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 <fcntl.h>
 #include <gtest/gtest.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <sys/statvfs.h>
 #include <sys/types.h>
 #include <time.h>

 #include <memory>
 #include <string>
 #include <vector>

 #include <android-base/file.h>
 #include <android-base/stringprintf.h>
 #include <android-base/test_utils.h>
 #include <openssl/sha.h>

 #include "applypatch/applypatch.h"
 #include "applypatch/applypatch_modes.h"
 #include "common/test_constants.h"
 #include "print_sha1.h"

 static const std::string DATA_PATH = getenv("ANDROID_DATA");
 static const std::string TESTDATA_PATH = "/recovery/testdata";

 static void sha1sum(const std::string& fname, std::string* sha1, size_t* fsize = nullptr) {
   ASSERT_NE(nullptr, sha1);

   std::string data;
   ASSERT_TRUE(android::base::ReadFileToString(fname, &data));

   if (fsize != nullptr) {
     *fsize = data.size();
   }

   uint8_t digest[SHA_DIGEST_LENGTH];
   SHA1(reinterpret_cast<const uint8_t*>(data.c_str()), data.size(), digest);
   *sha1 = print_sha1(digest);
 }

 static void mangle_file(const std::string& fname) {
   std::string content;
   content.reserve(1024);
   for (size_t i = 0; i < 1024; i++) {
     content[i] = rand() % 256;
   }
   ASSERT_TRUE(android::base::WriteStringToFile(content, fname));
 }

 static bool file_cmp(const std::string& f1, const std::string& f2) {
   std::string c1;
   android::base::ReadFileToString(f1, &c1);
   std::string c2;
   android::base::ReadFileToString(f2, &c2);
   return c1 == c2;
 }

 static std::string from_testdata_base(const std::string& fname) {
   return DATA_PATH + NATIVE_TEST_PATH + TESTDATA_PATH + "/" + fname;
 }

 class ApplyPatchTest : public ::testing::Test {
  public:
   static void SetUpTestCase() {
     // set up files
     old_file = from_testdata_base("old.file");
     new_file = from_testdata_base("new.file");
     patch_file = from_testdata_base("patch.bsdiff");
     rand_file = "/cache/applypatch_test_rand.file";
     cache_file = "/cache/saved.file";

     // write stuff to rand_file
     ASSERT_TRUE(android::base::WriteStringToFile("hello", rand_file));

     // set up SHA constants
     sha1sum(old_file, &old_sha1);
     sha1sum(new_file, &new_sha1);
     srand(time(nullptr));
     bad_sha1_a = android::base::StringPrintf("%040x", rand());
     bad_sha1_b = android::base::StringPrintf("%040x", rand());

     struct stat st;
     stat(&new_file[0], &st);
     new_size = st.st_size;
   }

   static std::string old_file;
   static std::string new_file;
   static std::string rand_file;
   static std::string cache_file;
   static std::string patch_file;

   static std::string old_sha1;
   static std::string new_sha1;
   static std::string bad_sha1_a;
   static std::string bad_sha1_b;

   static size_t new_size;
 };

 std::string ApplyPatchTest::old_file;
 std::string ApplyPatchTest::new_file;

 static void cp(const std::string& src, const std::string& tgt) {
   std::string cmd = "cp " + src + " " + tgt;
   system(cmd.c_str());
 }

 static void backup_old() {
   cp(ApplyPatchTest::old_file, ApplyPatchTest::cache_file);
 }

 static void restore_old() {
   cp(ApplyPatchTest::cache_file, ApplyPatchTest::old_file);
 }

 class ApplyPatchCacheTest : public ApplyPatchTest {
  public:
   virtual void SetUp() {
     backup_old();
   }

   virtual void TearDown() {
     restore_old();
   }
 };

 class ApplyPatchFullTest : public ApplyPatchCacheTest {
  public:
   static void SetUpTestCase() {
     ApplyPatchTest::SetUpTestCase();

     output_f = new TemporaryFile();
     output_loc = std::string(output_f->path);

     struct FileContents fc;

     ASSERT_EQ(0, LoadFileContents(&rand_file[0], &fc));
     patches.push_back(
         std::make_unique<Value>(VAL_BLOB, std::string(fc.data.begin(), fc.data.end())));

     ASSERT_EQ(0, LoadFileContents(&patch_file[0], &fc));
     patches.push_back(
         std::make_unique<Value>(VAL_BLOB, std::string(fc.data.begin(), fc.data.end())));
   }

   static void TearDownTestCase() {
     delete output_f;
     patches.clear();
   }

   static std::vector<std::unique_ptr<Value>> patches;
   static TemporaryFile* output_f;
   static std::string output_loc;
 };

 class ApplyPatchDoubleCacheTest : public ApplyPatchFullTest {
  public:
   virtual void SetUp() {
     ApplyPatchCacheTest::SetUp();
     cp(cache_file, "/cache/reallysaved.file");
   }

   virtual void TearDown() {
     cp("/cache/reallysaved.file", cache_file);
     ApplyPatchCacheTest::TearDown();
   }
 };

 std::string ApplyPatchTest::rand_file;
 std::string ApplyPatchTest::patch_file;
 std::string ApplyPatchTest::cache_file;
 std::string ApplyPatchTest::old_sha1;
 std::string ApplyPatchTest::new_sha1;
 std::string ApplyPatchTest::bad_sha1_a;
 std::string ApplyPatchTest::bad_sha1_b;

 size_t ApplyPatchTest::new_size;

 std::vector<std::unique_ptr<Value>> ApplyPatchFullTest::patches;
 TemporaryFile* ApplyPatchFullTest::output_f;
 std::string ApplyPatchFullTest::output_loc;

 TEST_F(ApplyPatchTest, CheckModeSkip) {
   std::vector<std::string> sha1s;
   ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchTest, CheckModeSingle) {
   std::vector<std::string> sha1s = { old_sha1 };
   ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchTest, CheckModeMultiple) {
   std::vector<std::string> sha1s = { bad_sha1_a, old_sha1, bad_sha1_b };
   ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchTest, CheckModeFailure) {
   std::vector<std::string> sha1s = { bad_sha1_a, bad_sha1_b };
   ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedSingle) {
   mangle_file(old_file);
   std::vector<std::string> sha1s = { old_sha1 };
   ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedMultiple) {
   mangle_file(old_file);
   std::vector<std::string> sha1s = { bad_sha1_a, old_sha1, bad_sha1_b };
   ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedFailure) {
   mangle_file(old_file);
   std::vector<std::string> sha1s = { bad_sha1_a, bad_sha1_b };
   ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchCacheTest, CheckCacheMissingSingle) {
   unlink(&old_file[0]);
   std::vector<std::string> sha1s = { old_sha1 };
   ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchCacheTest, CheckCacheMissingMultiple) {
   unlink(&old_file[0]);
   std::vector<std::string> sha1s = { bad_sha1_a, old_sha1, bad_sha1_b };
   ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchCacheTest, CheckCacheMissingFailure) {
   unlink(&old_file[0]);
   std::vector<std::string> sha1s = { bad_sha1_a, bad_sha1_b };
   ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
 }

 TEST_F(ApplyPatchFullTest, ApplyInPlace) {
   std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
   ASSERT_EQ(0, applypatch(&old_file[0], "-", &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_TRUE(file_cmp(old_file, new_file));

   // reapply, applypatch is idempotent so it should succeed
   ASSERT_EQ(0, applypatch(&old_file[0], "-", &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_TRUE(file_cmp(old_file, new_file));
 }

 TEST_F(ApplyPatchFullTest, ApplyInNewLocation) {
   std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
   // Apply bsdiff patch to new location.
   ASSERT_EQ(
       0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_TRUE(file_cmp(output_loc, new_file));

   // Reapply to the same location.
   ASSERT_EQ(
       0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_TRUE(file_cmp(output_loc, new_file));
 }

 TEST_F(ApplyPatchFullTest, ApplyCorruptedInNewLocation) {
   std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
   // Apply bsdiff patch to new location with corrupted source.
   mangle_file(old_file);
   ASSERT_EQ(
       0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_TRUE(file_cmp(output_loc, new_file));

   // Reapply bsdiff patch to new location with corrupted source.
   ASSERT_EQ(
       0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_TRUE(file_cmp(output_loc, new_file));
 }

 TEST_F(ApplyPatchDoubleCacheTest, ApplyDoubleCorruptedInNewLocation) {
   std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };

   // Apply bsdiff patch to new location with corrupted source and copy (no new file).
   // Expected to fail.
   mangle_file(old_file);
   mangle_file(cache_file);
   ASSERT_NE(
       0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_FALSE(file_cmp(output_loc, new_file));

   // Expected to fail again on retry.
   ASSERT_NE(
       0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_FALSE(file_cmp(output_loc, new_file));

   // Expected to fail with incorrect new file.
   mangle_file(output_loc);
   ASSERT_NE(
       0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
   ASSERT_FALSE(file_cmp(output_loc, new_file));
 }

 TEST(ApplyPatchModes, InvalidArgs) {
   // At least two args (including the filename).
   ASSERT_EQ(2, applypatch_modes(1, (const char* []){ "applypatch" }));

   // Unrecognized args.
   ASSERT_EQ(2, applypatch_modes(2, (const char* []){ "applypatch", "-x" }));
 }

 TEST(ApplyPatchModes, PatchMode) {
   std::string boot_img = from_testdata_base("boot.img");
   size_t boot_img_size;
   std::string boot_img_sha1;
   sha1sum(boot_img, &boot_img_sha1, &boot_img_size);

   std::string recovery_img = from_testdata_base("recovery.img");
   size_t recovery_img_size;
   std::string recovery_img_sha1;
   sha1sum(recovery_img, &recovery_img_sha1, &recovery_img_size);

   std::string bonus_file = from_testdata_base("bonus.file");

   // applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size> <src-sha1>:<patch>
   TemporaryFile tmp1;
   std::vector<const char*> args = {
     "applypatch",
     "-b",
     bonus_file.c_str(),
     boot_img.c_str(),
     tmp1.path,
     recovery_img_sha1.c_str(),
     std::to_string(recovery_img_size).c_str(),
     (boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot.p")).c_str()
   };
   ASSERT_EQ(0, applypatch_modes(args.size(), args.data()));

   // applypatch <src-file> <tgt-file> <tgt-sha1> <tgt-size> <src-sha1>:<patch>
   TemporaryFile tmp2;
   std::vector<const char*> args2 = {
     "applypatch",
     boot_img.c_str(),
     tmp2.path,
     recovery_img_sha1.c_str(),
     std::to_string(recovery_img_size).c_str(),
     (boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot-with-bonus.p")).c_str()
   };
   ASSERT_EQ(0, applypatch_modes(args2.size(), args2.data()));

   // applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size> \
     //               <src-sha1-fake>:<patch1> <src-sha1>:<patch2>
   TemporaryFile tmp3;
   std::string bad_sha1_a = android::base::StringPrintf("%040x", rand());
   std::string bad_sha1_b = android::base::StringPrintf("%040x", rand());
   std::vector<const char*> args3 = {
     "applypatch",
     "-b",
     bonus_file.c_str(),
     boot_img.c_str(),
     tmp3.path,
     recovery_img_sha1.c_str(),
     std::to_string(recovery_img_size).c_str(),
     (bad_sha1_a + ":" + from_testdata_base("recovery-from-boot.p")).c_str(),
     (boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot.p")).c_str(),
     (bad_sha1_b + ":" + from_testdata_base("recovery-from-boot.p")).c_str(),
   };
   ASSERT_EQ(0, applypatch_modes(args3.size(), args3.data()));
 }

 TEST(ApplyPatchModes, PatchModeInvalidArgs) {
   // Invalid bonus file.
   ASSERT_NE(0, applypatch_modes(3, (const char* []){ "applypatch", "-b", "/doesntexist" }));

   std::string bonus_file = from_testdata_base("bonus.file");
   // With bonus file, but missing args.
   ASSERT_EQ(2, applypatch_modes(3, (const char* []){ "applypatch", "-b", bonus_file.c_str() }));

   std::string boot_img = from_testdata_base("boot.img");
   size_t boot_img_size;
   std::string boot_img_sha1;
   sha1sum(boot_img, &boot_img_sha1, &boot_img_size);

   std::string recovery_img = from_testdata_base("recovery.img");
   size_t recovery_img_size;
   std::string recovery_img_sha1;
   sha1sum(recovery_img, &recovery_img_sha1, &recovery_img_size);

   // Bonus file is not supported in flash mode.
   // applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size>
   TemporaryFile tmp4;
   std::vector<const char*> args4 = {
     "applypatch",
     "-b",
     bonus_file.c_str(),
     boot_img.c_str(),
     tmp4.path,
     recovery_img_sha1.c_str(),
     std::to_string(recovery_img_size).c_str() };
   ASSERT_NE(0, applypatch_modes(args4.size(), args4.data()));

   // Failed to parse patch args.
   TemporaryFile tmp5;
   std::vector<const char*> args5 = {
     "applypatch",
     boot_img.c_str(),
     tmp5.path,
     recovery_img_sha1.c_str(),
     std::to_string(recovery_img_size).c_str(),
     ("invalid-sha1:filename" + from_testdata_base("recovery-from-boot-with-bonus.p")).c_str(),
   };
   ASSERT_NE(0, applypatch_modes(args5.size(), args5.data()));

   // Target size cannot be zero.
   TemporaryFile tmp6;
   std::vector<const char*> args6 = {
     "applypatch",
     boot_img.c_str(),
     tmp6.path,
     recovery_img_sha1.c_str(),
     "0",  // target size
     (boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot-with-bonus.p")).c_str()
   };
   ASSERT_NE(0, applypatch_modes(args6.size(), args6.data()));
 }

 TEST(ApplyPatchModes, CheckModeInvalidArgs) {
   // Insufficient args.
   ASSERT_EQ(2, applypatch_modes(2, (const char* []){ "applypatch", "-c" }));
 }

 TEST(ApplyPatchModes, SpaceModeInvalidArgs) {
   // Insufficient args.
   ASSERT_EQ(2, applypatch_modes(2, (const char* []){ "applypatch", "-s" }));

   // Invalid bytes arg.
   ASSERT_EQ(1, applypatch_modes(3, (const char* []){ "applypatch", "-s", "x" }));

   // 0 is invalid.
   ASSERT_EQ(1, applypatch_modes(3, (const char* []){ "applypatch", "-s", "0" }));

   // 0x10 is fine.
   ASSERT_EQ(0, applypatch_modes(3, (const char* []){ "applypatch", "-s", "0x10" }));
 }

 TEST(ApplyPatchModes, ShowLicenses) {
   ASSERT_EQ(0, applypatch_modes(2, (const char* []){ "applypatch", "-l" }));
 }
	/*
	* Copyright (C) 2016 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 agree 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 <fcntl.h>
	#include <gtest/gtest.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <sys/stat.h>
	#include <sys/statvfs.h>
	#include <sys/types.h>
	#include <time.h>

	#include <memory>
	#include <string>
	#include <vector>

	#include <android-base/file.h>
	#include <android-base/stringprintf.h>
	#include <android-base/test_utils.h>
	#include <openssl/sha.h>

	#include "applypatch/applypatch.h"
	#include "applypatch/applypatch_modes.h"
	#include "common/test_constants.h"
	#include "print_sha1.h"

	static const std::string DATA_PATH = getenv("ANDROID_DATA");
	static const std::string TESTDATA_PATH = "/recovery/testdata";

	static void sha1sum(const std::string& fname, std::string* sha1, size_t* fsize = nullptr) {
	ASSERT_NE(nullptr, sha1);

	std::string data;
	ASSERT_TRUE(android::base::ReadFileToString(fname, &data));

	if (fsize != nullptr) {
	*fsize = data.size();
	}

	uint8_t digest[SHA_DIGEST_LENGTH];
	SHA1(reinterpret_cast<const uint8_t*>(data.c_str()), data.size(), digest);
	*sha1 = print_sha1(digest);
	}

	static void mangle_file(const std::string& fname) {
	std::string content;
	content.reserve(1024);
	for (size_t i = 0; i < 1024; i++) {
	content[i] = rand() % 256;
	}
	ASSERT_TRUE(android::base::WriteStringToFile(content, fname));
	}

	static bool file_cmp(const std::string& f1, const std::string& f2) {
	std::string c1;
	android::base::ReadFileToString(f1, &c1);
	std::string c2;
	android::base::ReadFileToString(f2, &c2);
	return c1 == c2;
	}

	static std::string from_testdata_base(const std::string& fname) {
	return DATA_PATH + NATIVE_TEST_PATH + TESTDATA_PATH + "/" + fname;
	}

	class ApplyPatchTest : public ::testing::Test {
	public:
	static void SetUpTestCase() {
	// set up files
	old_file = from_testdata_base("old.file");
	new_file = from_testdata_base("new.file");
	patch_file = from_testdata_base("patch.bsdiff");
	rand_file = "/cache/applypatch_test_rand.file";
	cache_file = "/cache/saved.file";

	// write stuff to rand_file
	ASSERT_TRUE(android::base::WriteStringToFile("hello", rand_file));

	// set up SHA constants
	sha1sum(old_file, &old_sha1);
	sha1sum(new_file, &new_sha1);
	srand(time(nullptr));
	bad_sha1_a = android::base::StringPrintf("%040x", rand());
	bad_sha1_b = android::base::StringPrintf("%040x", rand());

	struct stat st;
	stat(&new_file[0], &st);
	new_size = st.st_size;
	}

	static std::string old_file;
	static std::string new_file;
	static std::string rand_file;
	static std::string cache_file;
	static std::string patch_file;

	static std::string old_sha1;
	static std::string new_sha1;
	static std::string bad_sha1_a;
	static std::string bad_sha1_b;

	static size_t new_size;
	};

	std::string ApplyPatchTest::old_file;
	std::string ApplyPatchTest::new_file;

	static void cp(const std::string& src, const std::string& tgt) {
	std::string cmd = "cp " + src + " " + tgt;
	system(cmd.c_str());
	}

	static void backup_old() {
	cp(ApplyPatchTest::old_file, ApplyPatchTest::cache_file);
	}

	static void restore_old() {
	cp(ApplyPatchTest::cache_file, ApplyPatchTest::old_file);
	}

	class ApplyPatchCacheTest : public ApplyPatchTest {
	public:
	virtual void SetUp() {
	backup_old();
	}

	virtual void TearDown() {
	restore_old();
	}
	};

	class ApplyPatchFullTest : public ApplyPatchCacheTest {
	public:
	static void SetUpTestCase() {
	ApplyPatchTest::SetUpTestCase();

	output_f = new TemporaryFile();
	output_loc = std::string(output_f->path);

	struct FileContents fc;

	ASSERT_EQ(0, LoadFileContents(&rand_file[0], &fc));
	patches.push_back(
	std::make_unique<Value>(VAL_BLOB, std::string(fc.data.begin(), fc.data.end())));

	ASSERT_EQ(0, LoadFileContents(&patch_file[0], &fc));
	patches.push_back(
	std::make_unique<Value>(VAL_BLOB, std::string(fc.data.begin(), fc.data.end())));
	}

	static void TearDownTestCase() {
	delete output_f;
	patches.clear();
	}

	static std::vector<std::unique_ptr<Value>> patches;
	static TemporaryFile* output_f;
	static std::string output_loc;
	};

	class ApplyPatchDoubleCacheTest : public ApplyPatchFullTest {
	public:
	virtual void SetUp() {
	ApplyPatchCacheTest::SetUp();
	cp(cache_file, "/cache/reallysaved.file");
	}

	virtual void TearDown() {
	cp("/cache/reallysaved.file", cache_file);
	ApplyPatchCacheTest::TearDown();
	}
	};

	std::string ApplyPatchTest::rand_file;
	std::string ApplyPatchTest::patch_file;
	std::string ApplyPatchTest::cache_file;
	std::string ApplyPatchTest::old_sha1;
	std::string ApplyPatchTest::new_sha1;
	std::string ApplyPatchTest::bad_sha1_a;
	std::string ApplyPatchTest::bad_sha1_b;

	size_t ApplyPatchTest::new_size;

	std::vector<std::unique_ptr<Value>> ApplyPatchFullTest::patches;
	TemporaryFile* ApplyPatchFullTest::output_f;
	std::string ApplyPatchFullTest::output_loc;

	TEST_F(ApplyPatchTest, CheckModeSkip) {
	std::vector<std::string> sha1s;
	ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchTest, CheckModeSingle) {
	std::vector<std::string> sha1s = { old_sha1 };
	ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchTest, CheckModeMultiple) {
	std::vector<std::string> sha1s = { bad_sha1_a, old_sha1, bad_sha1_b };
	ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchTest, CheckModeFailure) {
	std::vector<std::string> sha1s = { bad_sha1_a, bad_sha1_b };
	ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedSingle) {
	mangle_file(old_file);
	std::vector<std::string> sha1s = { old_sha1 };
	ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedMultiple) {
	mangle_file(old_file);
	std::vector<std::string> sha1s = { bad_sha1_a, old_sha1, bad_sha1_b };
	ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedFailure) {
	mangle_file(old_file);
	std::vector<std::string> sha1s = { bad_sha1_a, bad_sha1_b };
	ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchCacheTest, CheckCacheMissingSingle) {
	unlink(&old_file[0]);
	std::vector<std::string> sha1s = { old_sha1 };
	ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchCacheTest, CheckCacheMissingMultiple) {
	unlink(&old_file[0]);
	std::vector<std::string> sha1s = { bad_sha1_a, old_sha1, bad_sha1_b };
	ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchCacheTest, CheckCacheMissingFailure) {
	unlink(&old_file[0]);
	std::vector<std::string> sha1s = { bad_sha1_a, bad_sha1_b };
	ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
	}

	TEST_F(ApplyPatchFullTest, ApplyInPlace) {
	std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
	ASSERT_EQ(0, applypatch(&old_file[0], "-", &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_TRUE(file_cmp(old_file, new_file));

	// reapply, applypatch is idempotent so it should succeed
	ASSERT_EQ(0, applypatch(&old_file[0], "-", &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_TRUE(file_cmp(old_file, new_file));
	}

	TEST_F(ApplyPatchFullTest, ApplyInNewLocation) {
	std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
	// Apply bsdiff patch to new location.
	ASSERT_EQ(
	0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_TRUE(file_cmp(output_loc, new_file));

	// Reapply to the same location.
	ASSERT_EQ(
	0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_TRUE(file_cmp(output_loc, new_file));
	}

	TEST_F(ApplyPatchFullTest, ApplyCorruptedInNewLocation) {
	std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
	// Apply bsdiff patch to new location with corrupted source.
	mangle_file(old_file);
	ASSERT_EQ(
	0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_TRUE(file_cmp(output_loc, new_file));

	// Reapply bsdiff patch to new location with corrupted source.
	ASSERT_EQ(
	0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_TRUE(file_cmp(output_loc, new_file));
	}

	TEST_F(ApplyPatchDoubleCacheTest, ApplyDoubleCorruptedInNewLocation) {
	std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };

	// Apply bsdiff patch to new location with corrupted source and copy (no new file).
	// Expected to fail.
	mangle_file(old_file);
	mangle_file(cache_file);
	ASSERT_NE(
	0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_FALSE(file_cmp(output_loc, new_file));

	// Expected to fail again on retry.
	ASSERT_NE(
	0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_FALSE(file_cmp(output_loc, new_file));

	// Expected to fail with incorrect new file.
	mangle_file(output_loc);
	ASSERT_NE(
	0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
	ASSERT_FALSE(file_cmp(output_loc, new_file));
	}

	TEST(ApplyPatchModes, InvalidArgs) {
	// At least two args (including the filename).
	ASSERT_EQ(2, applypatch_modes(1, (const char* []){ "applypatch" }));

	// Unrecognized args.
	ASSERT_EQ(2, applypatch_modes(2, (const char* []){ "applypatch", "-x" }));
	}

	TEST(ApplyPatchModes, PatchMode) {
	std::string boot_img = from_testdata_base("boot.img");
	size_t boot_img_size;
	std::string boot_img_sha1;
	sha1sum(boot_img, &boot_img_sha1, &boot_img_size);

	std::string recovery_img = from_testdata_base("recovery.img");
	size_t recovery_img_size;
	std::string recovery_img_sha1;
	sha1sum(recovery_img, &recovery_img_sha1, &recovery_img_size);

	std::string bonus_file = from_testdata_base("bonus.file");

	// applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size> <src-sha1>:<patch>
	TemporaryFile tmp1;
	std::vector<const char*> args = {
	"applypatch",
	"-b",
	bonus_file.c_str(),
	boot_img.c_str(),
	tmp1.path,
	recovery_img_sha1.c_str(),
	std::to_string(recovery_img_size).c_str(),
	(boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot.p")).c_str()
	};
	ASSERT_EQ(0, applypatch_modes(args.size(), args.data()));

	// applypatch <src-file> <tgt-file> <tgt-sha1> <tgt-size> <src-sha1>:<patch>
	TemporaryFile tmp2;
	std::vector<const char*> args2 = {
	"applypatch",
	boot_img.c_str(),
	tmp2.path,
	recovery_img_sha1.c_str(),
	std::to_string(recovery_img_size).c_str(),
	(boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot-with-bonus.p")).c_str()
	};
	ASSERT_EQ(0, applypatch_modes(args2.size(), args2.data()));

	// applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size> \
	// <src-sha1-fake>:<patch1> <src-sha1>:<patch2>
	TemporaryFile tmp3;
	std::string bad_sha1_a = android::base::StringPrintf("%040x", rand());
	std::string bad_sha1_b = android::base::StringPrintf("%040x", rand());
	std::vector<const char*> args3 = {
	"applypatch",
	"-b",
	bonus_file.c_str(),
	boot_img.c_str(),
	tmp3.path,
	recovery_img_sha1.c_str(),
	std::to_string(recovery_img_size).c_str(),
	(bad_sha1_a + ":" + from_testdata_base("recovery-from-boot.p")).c_str(),
	(boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot.p")).c_str(),
	(bad_sha1_b + ":" + from_testdata_base("recovery-from-boot.p")).c_str(),
	};
	ASSERT_EQ(0, applypatch_modes(args3.size(), args3.data()));
	}

	TEST(ApplyPatchModes, PatchModeInvalidArgs) {
	// Invalid bonus file.
	ASSERT_NE(0, applypatch_modes(3, (const char* []){ "applypatch", "-b", "/doesntexist" }));

	std::string bonus_file = from_testdata_base("bonus.file");
	// With bonus file, but missing args.
	ASSERT_EQ(2, applypatch_modes(3, (const char* []){ "applypatch", "-b", bonus_file.c_str() }));

	std::string boot_img = from_testdata_base("boot.img");
	size_t boot_img_size;
	std::string boot_img_sha1;
	sha1sum(boot_img, &boot_img_sha1, &boot_img_size);

	std::string recovery_img = from_testdata_base("recovery.img");
	size_t recovery_img_size;
	std::string recovery_img_sha1;
	sha1sum(recovery_img, &recovery_img_sha1, &recovery_img_size);

	// Bonus file is not supported in flash mode.
	// applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size>
	TemporaryFile tmp4;
	std::vector<const char*> args4 = {
	"applypatch",
	"-b",
	bonus_file.c_str(),
	boot_img.c_str(),
	tmp4.path,
	recovery_img_sha1.c_str(),
	std::to_string(recovery_img_size).c_str() };
	ASSERT_NE(0, applypatch_modes(args4.size(), args4.data()));

	// Failed to parse patch args.
	TemporaryFile tmp5;
	std::vector<const char*> args5 = {
	"applypatch",
	boot_img.c_str(),
	tmp5.path,
	recovery_img_sha1.c_str(),
	std::to_string(recovery_img_size).c_str(),
	("invalid-sha1:filename" + from_testdata_base("recovery-from-boot-with-bonus.p")).c_str(),
	};
	ASSERT_NE(0, applypatch_modes(args5.size(), args5.data()));

	// Target size cannot be zero.
	TemporaryFile tmp6;
	std::vector<const char*> args6 = {
	"applypatch",
	boot_img.c_str(),
	tmp6.path,
	recovery_img_sha1.c_str(),
	"0", // target size
	(boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot-with-bonus.p")).c_str()
	};
	ASSERT_NE(0, applypatch_modes(args6.size(), args6.data()));
	}

	TEST(ApplyPatchModes, CheckModeInvalidArgs) {
	// Insufficient args.
	ASSERT_EQ(2, applypatch_modes(2, (const char* []){ "applypatch", "-c" }));
	}

	TEST(ApplyPatchModes, SpaceModeInvalidArgs) {
	// Insufficient args.
	ASSERT_EQ(2, applypatch_modes(2, (const char* []){ "applypatch", "-s" }));

	// Invalid bytes arg.
	ASSERT_EQ(1, applypatch_modes(3, (const char* []){ "applypatch", "-s", "x" }));

	// 0 is invalid.
	ASSERT_EQ(1, applypatch_modes(3, (const char* []){ "applypatch", "-s", "0" }));

	// 0x10 is fine.
	ASSERT_EQ(0, applypatch_modes(3, (const char* []){ "applypatch", "-s", "0x10" }));
	}

	TEST(ApplyPatchModes, ShowLicenses) {
	ASSERT_EQ(0, applypatch_modes(2, (const char* []){ "applypatch", "-l" }));
	}