| // Copyright (c) 2009 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <sys/mount.h> |
| #include <inttypes.h> |
| |
| #include <algorithm> |
| #include <string> |
| #include <vector> |
| |
| #include <base/file_util.h> |
| #include <base/scoped_ptr.h> |
| #include <base/string_util.h> |
| #include <google/protobuf/repeated_field.h> |
| #include <gtest/gtest.h> |
| |
| #include "update_engine/delta_diff_generator.h" |
| #include "update_engine/delta_performer.h" |
| #include "update_engine/extent_ranges.h" |
| #include "update_engine/full_update_generator.h" |
| #include "update_engine/graph_types.h" |
| #include "update_engine/payload_signer.h" |
| #include "update_engine/prefs_mock.h" |
| #include "update_engine/test_utils.h" |
| #include "update_engine/update_metadata.pb.h" |
| #include "update_engine/utils.h" |
| |
| namespace chromeos_update_engine { |
| |
| using std::min; |
| using std::string; |
| using std::vector; |
| using testing::_; |
| using testing::Return; |
| |
| extern const char* kUnittestPrivateKeyPath; |
| extern const char* kUnittestPublicKeyPath; |
| |
| namespace { |
| const size_t kBlockSize = 4096; |
| } // namespace {} |
| |
| |
| class DeltaPerformerTest : public ::testing::Test { }; |
| |
| TEST(DeltaPerformerTest, ExtentsToByteStringTest) { |
| uint64_t test[] = {1, 1, 4, 2, kSparseHole, 1, 0, 1}; |
| COMPILE_ASSERT(arraysize(test) % 2 == 0, array_size_uneven); |
| const uint64_t block_size = 4096; |
| const uint64_t file_length = 5 * block_size - 13; |
| |
| google::protobuf::RepeatedPtrField<Extent> extents; |
| for (size_t i = 0; i < arraysize(test); i += 2) { |
| Extent* extent = extents.Add(); |
| extent->set_start_block(test[i]); |
| extent->set_num_blocks(test[i + 1]); |
| } |
| |
| string expected_output = "4096:4096,16384:8192,-1:4096,0:4083"; |
| string actual_output; |
| EXPECT_TRUE(DeltaPerformer::ExtentsToBsdiffPositionsString(extents, |
| block_size, |
| file_length, |
| &actual_output)); |
| EXPECT_EQ(expected_output, actual_output); |
| } |
| |
| void CompareFilesByBlock(const string& a_file, const string& b_file) { |
| vector<char> a_data, b_data; |
| EXPECT_TRUE(utils::ReadFile(a_file, &a_data)) << "file failed: " << a_file; |
| EXPECT_TRUE(utils::ReadFile(b_file, &b_data)) << "file failed: " << b_file; |
| |
| EXPECT_EQ(a_data.size(), b_data.size()); |
| EXPECT_EQ(0, a_data.size() % kBlockSize); |
| for (size_t i = 0; i < a_data.size(); i += kBlockSize) { |
| EXPECT_EQ(0, i % kBlockSize); |
| vector<char> a_sub(&a_data[i], &a_data[i + kBlockSize]); |
| vector<char> b_sub(&b_data[i], &b_data[i + kBlockSize]); |
| EXPECT_TRUE(a_sub == b_sub) << "Block " << (i/kBlockSize) << " differs"; |
| } |
| } |
| |
| namespace { |
| bool WriteSparseFile(const string& path, off_t size) { |
| int fd = open(path.c_str(), O_CREAT | O_TRUNC | O_WRONLY, 0644); |
| TEST_AND_RETURN_FALSE_ERRNO(fd >= 0); |
| ScopedFdCloser fd_closer(&fd); |
| off_t rc = lseek(fd, size + 1, SEEK_SET); |
| TEST_AND_RETURN_FALSE_ERRNO(rc != static_cast<off_t>(-1)); |
| int return_code = ftruncate(fd, size); |
| TEST_AND_RETURN_FALSE_ERRNO(return_code == 0); |
| return true; |
| } |
| } // namespace {} |
| |
| namespace { |
| enum SignatureTest { |
| kSignatureNone, // No payload signing. |
| kSignatureGenerator, // Sign the payload at generation time. |
| kSignatureGenerated, // Sign the payload after it's generated. |
| kSignatureGeneratedShell, // Sign the generated payload through shell cmds. |
| kSignatureGeneratedShellBadKey, // Sign with a bad key through shell cmds. |
| }; |
| |
| size_t GetSignatureSize(const string& private_key_path) { |
| const vector<char> data(1, 'x'); |
| vector<char> hash; |
| EXPECT_TRUE(OmahaHashCalculator::RawHashOfData(data, &hash)); |
| vector<char> signature; |
| EXPECT_TRUE(PayloadSigner::SignHash(hash, |
| private_key_path, |
| &signature)); |
| return signature.size(); |
| } |
| |
| void SignGeneratedPayload(const string& payload_path) { |
| int signature_size = GetSignatureSize(kUnittestPrivateKeyPath); |
| vector<char> hash; |
| ASSERT_TRUE(PayloadSigner::HashPayloadForSigning(payload_path, |
| signature_size, |
| &hash)); |
| vector<char> signature; |
| ASSERT_TRUE(PayloadSigner::SignHash(hash, |
| kUnittestPrivateKeyPath, |
| &signature)); |
| ASSERT_TRUE(PayloadSigner::AddSignatureToPayload(payload_path, |
| signature, |
| payload_path)); |
| EXPECT_TRUE(PayloadSigner::VerifySignedPayload(payload_path, |
| kUnittestPublicKeyPath)); |
| } |
| |
| void SignGeneratedShellPayload(SignatureTest signature_test, |
| const string& payload_path) { |
| string private_key_path = kUnittestPrivateKeyPath; |
| if (signature_test == kSignatureGeneratedShellBadKey) { |
| ASSERT_TRUE(utils::MakeTempFile("/tmp/key.XXXXXX", |
| &private_key_path, |
| NULL)); |
| } else { |
| ASSERT_EQ(kSignatureGeneratedShell, signature_test); |
| } |
| ScopedPathUnlinker key_unlinker(private_key_path); |
| key_unlinker.set_should_remove(signature_test == |
| kSignatureGeneratedShellBadKey); |
| // Generates a new private key that will not match the public key. |
| if (signature_test == kSignatureGeneratedShellBadKey) { |
| LOG(INFO) << "Generating a mismatched private key."; |
| ASSERT_EQ(0, |
| System(StringPrintf( |
| "/usr/bin/openssl genrsa -out %s 2048", |
| private_key_path.c_str()))); |
| } |
| int signature_size = GetSignatureSize(private_key_path); |
| string hash_file; |
| ASSERT_TRUE(utils::MakeTempFile("/tmp/hash.XXXXXX", &hash_file, NULL)); |
| ScopedPathUnlinker hash_unlinker(hash_file); |
| ASSERT_EQ(0, |
| System(StringPrintf( |
| "./delta_generator -in_file %s -signature_size %d " |
| "-out_hash_file %s", |
| payload_path.c_str(), |
| signature_size, |
| hash_file.c_str()))); |
| |
| // Pad the hash |
| vector<char> hash; |
| ASSERT_TRUE(utils::ReadFile(hash_file, &hash)); |
| ASSERT_TRUE(PayloadSigner::PadRSA2048SHA256Hash(&hash)); |
| ASSERT_TRUE(WriteFileVector(hash_file, hash)); |
| |
| string sig_file; |
| ASSERT_TRUE(utils::MakeTempFile("/tmp/signature.XXXXXX", &sig_file, NULL)); |
| ScopedPathUnlinker sig_unlinker(sig_file); |
| ASSERT_EQ(0, |
| System(StringPrintf( |
| "/usr/bin/openssl rsautl -raw -sign -inkey %s -in %s -out %s", |
| private_key_path.c_str(), |
| hash_file.c_str(), |
| sig_file.c_str()))); |
| ASSERT_EQ(0, |
| System(StringPrintf( |
| "./delta_generator -in_file %s -signature_file %s " |
| "-out_file %s", |
| payload_path.c_str(), |
| sig_file.c_str(), |
| payload_path.c_str()))); |
| int verify_result = |
| System(StringPrintf("./delta_generator -in_file %s -public_key %s", |
| payload_path.c_str(), |
| kUnittestPublicKeyPath)); |
| if (signature_test == kSignatureGeneratedShellBadKey) { |
| ASSERT_NE(0, verify_result); |
| } else { |
| ASSERT_EQ(0, verify_result); |
| } |
| } |
| |
| void DoSmallImageTest(bool full_kernel, bool full_rootfs, bool noop, |
| SignatureTest signature_test) { |
| string a_img, b_img; |
| EXPECT_TRUE(utils::MakeTempFile("/tmp/a_img.XXXXXX", &a_img, NULL)); |
| ScopedPathUnlinker a_img_unlinker(a_img); |
| EXPECT_TRUE(utils::MakeTempFile("/tmp/b_img.XXXXXX", &b_img, NULL)); |
| ScopedPathUnlinker b_img_unlinker(b_img); |
| |
| CreateExtImageAtPath(a_img, NULL); |
| |
| int image_size = static_cast<int>(utils::FileSize(a_img)); |
| |
| // Extend the "partitions" holding the file system a bit. |
| EXPECT_EQ(0, System(base::StringPrintf( |
| "dd if=/dev/zero of=%s seek=%d bs=1 count=1", |
| a_img.c_str(), |
| image_size + 1024 * 1024 - 1))); |
| EXPECT_EQ(image_size + 1024 * 1024, utils::FileSize(a_img)); |
| |
| // Make some changes to the A image. |
| { |
| string a_mnt; |
| ScopedLoopMounter b_mounter(a_img, &a_mnt, 0); |
| |
| EXPECT_TRUE(utils::WriteFile(StringPrintf("%s/hardtocompress", |
| a_mnt.c_str()).c_str(), |
| reinterpret_cast<const char*>(kRandomString), |
| sizeof(kRandomString) - 1)); |
| // Write 1 MiB of 0xff to try to catch the case where writing a bsdiff |
| // patch fails to zero out the final block. |
| vector<char> ones(1024 * 1024, 0xff); |
| EXPECT_TRUE(utils::WriteFile(StringPrintf("%s/ones", |
| a_mnt.c_str()).c_str(), |
| &ones[0], |
| ones.size())); |
| } |
| |
| if (noop) { |
| EXPECT_TRUE(file_util::CopyFile(FilePath(a_img), FilePath(b_img))); |
| } else { |
| CreateExtImageAtPath(b_img, NULL); |
| EXPECT_EQ(0, System(base::StringPrintf( |
| "dd if=/dev/zero of=%s seek=%d bs=1 count=1", |
| b_img.c_str(), |
| image_size + 1024 * 1024 - 1))); |
| EXPECT_EQ(image_size + 1024 * 1024, utils::FileSize(b_img)); |
| |
| // Make some changes to the B image. |
| string b_mnt; |
| ScopedLoopMounter b_mounter(b_img, &b_mnt, 0); |
| |
| EXPECT_EQ(0, system(StringPrintf("cp %s/hello %s/hello2", b_mnt.c_str(), |
| b_mnt.c_str()).c_str())); |
| EXPECT_EQ(0, system(StringPrintf("rm %s/hello", b_mnt.c_str()).c_str())); |
| EXPECT_EQ(0, system(StringPrintf("mv %s/hello2 %s/hello", b_mnt.c_str(), |
| b_mnt.c_str()).c_str())); |
| EXPECT_EQ(0, system(StringPrintf("echo foo > %s/foo", |
| b_mnt.c_str()).c_str())); |
| EXPECT_EQ(0, system(StringPrintf("touch %s/emptyfile", |
| b_mnt.c_str()).c_str())); |
| EXPECT_TRUE(WriteSparseFile(StringPrintf("%s/fullsparse", b_mnt.c_str()), |
| 1024 * 1024)); |
| EXPECT_EQ(0, system(StringPrintf("dd if=/dev/zero of=%s/partsparese bs=1 " |
| "seek=4096 count=1", |
| b_mnt.c_str()).c_str())); |
| EXPECT_EQ(0, system(StringPrintf("cp %s/srchardlink0 %s/tmp && " |
| "mv %s/tmp %s/srchardlink1", |
| b_mnt.c_str(), b_mnt.c_str(), |
| b_mnt.c_str(), b_mnt.c_str()).c_str())); |
| EXPECT_EQ(0, system(StringPrintf("rm %s/boguslink && " |
| "echo foobar > %s/boguslink", |
| b_mnt.c_str(), b_mnt.c_str()).c_str())); |
| EXPECT_TRUE(utils::WriteFile(StringPrintf("%s/hardtocompress", |
| b_mnt.c_str()).c_str(), |
| reinterpret_cast<const char*>(kRandomString), |
| sizeof(kRandomString))); |
| } |
| |
| string old_kernel; |
| EXPECT_TRUE(utils::MakeTempFile("/tmp/old_kernel.XXXXXX", &old_kernel, NULL)); |
| ScopedPathUnlinker old_kernel_unlinker(old_kernel); |
| |
| string new_kernel; |
| EXPECT_TRUE(utils::MakeTempFile("/tmp/new_kernel.XXXXXX", &new_kernel, NULL)); |
| ScopedPathUnlinker new_kernel_unlinker(new_kernel); |
| |
| vector<char> old_kernel_data(4096); // Something small for a test |
| vector<char> new_kernel_data(old_kernel_data.size()); |
| FillWithData(&old_kernel_data); |
| FillWithData(&new_kernel_data); |
| |
| // change the new kernel data |
| const char* new_data_string = "This is new data."; |
| strcpy(&new_kernel_data[0], new_data_string); |
| |
| if (noop) { |
| old_kernel_data = new_kernel_data; |
| } |
| |
| // Write kernels to disk |
| EXPECT_TRUE(utils::WriteFile( |
| old_kernel.c_str(), &old_kernel_data[0], old_kernel_data.size())); |
| EXPECT_TRUE(utils::WriteFile( |
| new_kernel.c_str(), &new_kernel_data[0], new_kernel_data.size())); |
| |
| string delta_path; |
| EXPECT_TRUE(utils::MakeTempFile("/tmp/delta.XXXXXX", &delta_path, NULL)); |
| LOG(INFO) << "delta path: " << delta_path; |
| ScopedPathUnlinker delta_path_unlinker(delta_path); |
| { |
| string a_mnt, b_mnt; |
| ScopedLoopMounter a_mounter(a_img, &a_mnt, MS_RDONLY); |
| ScopedLoopMounter b_mounter(b_img, &b_mnt, MS_RDONLY); |
| const string private_key = |
| signature_test == kSignatureGenerator ? kUnittestPrivateKeyPath : ""; |
| EXPECT_TRUE( |
| DeltaDiffGenerator::GenerateDeltaUpdateFile( |
| full_rootfs ? "" : a_mnt, |
| full_rootfs ? "" : a_img, |
| b_mnt, |
| b_img, |
| full_kernel ? "" : old_kernel, |
| new_kernel, |
| delta_path, |
| private_key)); |
| } |
| |
| if (signature_test == kSignatureGenerated) { |
| SignGeneratedPayload(delta_path); |
| } else if (signature_test == kSignatureGeneratedShell || |
| signature_test == kSignatureGeneratedShellBadKey) { |
| SignGeneratedShellPayload(signature_test, delta_path); |
| } |
| |
| // Read delta into memory. |
| vector<char> delta; |
| EXPECT_TRUE(utils::ReadFile(delta_path, &delta)); |
| |
| uint64_t manifest_metadata_size; |
| |
| // Check the metadata. |
| { |
| LOG(INFO) << "delta size: " << delta.size(); |
| DeltaArchiveManifest manifest; |
| const int kManifestSizeOffset = 12; |
| const int kManifestOffset = 20; |
| uint64_t manifest_size = 0; |
| memcpy(&manifest_size, &delta[kManifestSizeOffset], sizeof(manifest_size)); |
| manifest_size = be64toh(manifest_size); |
| LOG(INFO) << "manifest size: " << manifest_size; |
| EXPECT_TRUE(manifest.ParseFromArray(&delta[kManifestOffset], |
| manifest_size)); |
| manifest_metadata_size = kManifestOffset + manifest_size; |
| |
| if (signature_test == kSignatureNone) { |
| EXPECT_FALSE(manifest.has_signatures_offset()); |
| EXPECT_FALSE(manifest.has_signatures_size()); |
| } else { |
| EXPECT_TRUE(manifest.has_signatures_offset()); |
| EXPECT_TRUE(manifest.has_signatures_size()); |
| Signatures sigs_message; |
| EXPECT_TRUE(sigs_message.ParseFromArray( |
| &delta[manifest_metadata_size + manifest.signatures_offset()], |
| manifest.signatures_size())); |
| EXPECT_EQ(1, sigs_message.signatures_size()); |
| const Signatures_Signature& signature = sigs_message.signatures(0); |
| EXPECT_EQ(1, signature.version()); |
| |
| uint64_t expected_sig_data_length = 0; |
| EXPECT_TRUE(PayloadSigner::SignatureBlobLength( |
| kUnittestPrivateKeyPath, &expected_sig_data_length)); |
| EXPECT_EQ(expected_sig_data_length, manifest.signatures_size()); |
| EXPECT_FALSE(signature.data().empty()); |
| } |
| |
| if (noop) { |
| EXPECT_EQ(1, manifest.install_operations_size()); |
| EXPECT_EQ(1, manifest.kernel_install_operations_size()); |
| } |
| |
| if (full_kernel) { |
| EXPECT_FALSE(manifest.has_old_kernel_info()); |
| } else { |
| EXPECT_EQ(old_kernel_data.size(), manifest.old_kernel_info().size()); |
| EXPECT_FALSE(manifest.old_kernel_info().hash().empty()); |
| } |
| |
| if (full_rootfs) { |
| EXPECT_FALSE(manifest.has_old_rootfs_info()); |
| } else { |
| EXPECT_EQ(image_size, manifest.old_rootfs_info().size()); |
| EXPECT_FALSE(manifest.old_rootfs_info().hash().empty()); |
| } |
| |
| EXPECT_EQ(new_kernel_data.size(), manifest.new_kernel_info().size()); |
| EXPECT_EQ(image_size, manifest.new_rootfs_info().size()); |
| |
| EXPECT_FALSE(manifest.new_kernel_info().hash().empty()); |
| EXPECT_FALSE(manifest.new_rootfs_info().hash().empty()); |
| } |
| |
| PrefsMock prefs; |
| EXPECT_CALL(prefs, SetInt64(kPrefsManifestMetadataSize, |
| manifest_metadata_size)).WillOnce(Return(true)); |
| EXPECT_CALL(prefs, SetInt64(kPrefsUpdateStateNextOperation, _)) |
| .WillRepeatedly(Return(true)); |
| EXPECT_CALL(prefs, GetInt64(kPrefsUpdateStateNextOperation, _)) |
| .WillOnce(Return(false)); |
| EXPECT_CALL(prefs, SetInt64(kPrefsUpdateStateNextDataOffset, _)) |
| .WillRepeatedly(Return(true)); |
| EXPECT_CALL(prefs, SetString(kPrefsUpdateStateSHA256Context, _)) |
| .WillRepeatedly(Return(true)); |
| if (signature_test != kSignatureNone) { |
| EXPECT_CALL(prefs, SetString(kPrefsUpdateStateSignedSHA256Context, _)) |
| .WillOnce(Return(true)); |
| } |
| |
| // Update the A image in place. |
| DeltaPerformer performer(&prefs); |
| |
| vector<char> rootfs_hash; |
| EXPECT_EQ(image_size, |
| OmahaHashCalculator::RawHashOfFile(a_img, |
| image_size, |
| &rootfs_hash)); |
| performer.set_current_rootfs_hash(rootfs_hash); |
| vector<char> kernel_hash; |
| EXPECT_TRUE(OmahaHashCalculator::RawHashOfData(old_kernel_data, |
| &kernel_hash)); |
| performer.set_current_kernel_hash(kernel_hash); |
| |
| EXPECT_EQ(0, performer.Open(a_img.c_str(), 0, 0)); |
| EXPECT_TRUE(performer.OpenKernel(old_kernel.c_str())); |
| |
| // Write at some number of bytes per operation. Arbitrarily chose 5. |
| const size_t kBytesPerWrite = 5; |
| for (size_t i = 0; i < delta.size(); i += kBytesPerWrite) { |
| size_t count = min(delta.size() - i, kBytesPerWrite); |
| EXPECT_EQ(count, performer.Write(&delta[i], count)); |
| } |
| |
| // Wrapper around close. Returns 0 on success or -errno on error. |
| EXPECT_EQ(0, performer.Close()); |
| |
| CompareFilesByBlock(old_kernel, new_kernel); |
| CompareFilesByBlock(a_img, b_img); |
| |
| vector<char> updated_kernel_partition; |
| EXPECT_TRUE(utils::ReadFile(old_kernel, &updated_kernel_partition)); |
| EXPECT_EQ(0, strncmp(&updated_kernel_partition[0], new_data_string, |
| strlen(new_data_string))); |
| |
| EXPECT_TRUE(utils::FileExists(kUnittestPublicKeyPath)); |
| const bool expect_public_verify_failure = |
| signature_test == kSignatureNone || |
| signature_test == kSignatureGeneratedShellBadKey; |
| bool public_verify_failure = false; |
| EXPECT_TRUE(performer.VerifyPayload( |
| kUnittestPublicKeyPath, |
| OmahaHashCalculator::OmahaHashOfData(delta), |
| delta.size(), |
| &public_verify_failure)); |
| EXPECT_EQ(expect_public_verify_failure, public_verify_failure); |
| EXPECT_TRUE(performer.VerifyPayload( |
| "/public/key/does/not/exists", |
| OmahaHashCalculator::OmahaHashOfData(delta), |
| delta.size(), |
| NULL)); |
| |
| uint64_t new_kernel_size; |
| vector<char> new_kernel_hash; |
| uint64_t new_rootfs_size; |
| vector<char> new_rootfs_hash; |
| EXPECT_TRUE(performer.GetNewPartitionInfo(&new_kernel_size, |
| &new_kernel_hash, |
| &new_rootfs_size, |
| &new_rootfs_hash)); |
| EXPECT_EQ(4096, new_kernel_size); |
| vector<char> expected_new_kernel_hash; |
| EXPECT_TRUE(OmahaHashCalculator::RawHashOfData(new_kernel_data, |
| &expected_new_kernel_hash)); |
| EXPECT_TRUE(expected_new_kernel_hash == new_kernel_hash); |
| EXPECT_EQ(image_size, new_rootfs_size); |
| vector<char> expected_new_rootfs_hash; |
| EXPECT_EQ(image_size, |
| OmahaHashCalculator::RawHashOfFile(b_img, |
| image_size, |
| &expected_new_rootfs_hash)); |
| EXPECT_TRUE(expected_new_rootfs_hash == new_rootfs_hash); |
| } |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootSmallImageTest) { |
| DoSmallImageTest(false, false, false, kSignatureGenerator); |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootFullKernelSmallImageTest) { |
| DoSmallImageTest(true, false, false, kSignatureGenerator); |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootFullSmallImageTest) { |
| DoSmallImageTest(true, true, false, kSignatureGenerator); |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootNoopSmallImageTest) { |
| DoSmallImageTest(false, false, true, kSignatureGenerator); |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootSmallImageSignNoneTest) { |
| DoSmallImageTest(false, false, false, kSignatureNone); |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootSmallImageSignGeneratedTest) { |
| DoSmallImageTest(false, false, false, kSignatureGenerated); |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootSmallImageSignGeneratedShellTest) { |
| DoSmallImageTest(false, false, false, kSignatureGeneratedShell); |
| } |
| |
| TEST(DeltaPerformerTest, RunAsRootSmallImageSignGeneratedShellBadKeyTest) { |
| DoSmallImageTest(false, false, false, kSignatureGeneratedShellBadKey); |
| } |
| |
| TEST(DeltaPerformerTest, BadDeltaMagicTest) { |
| PrefsMock prefs; |
| DeltaPerformer performer(&prefs); |
| EXPECT_EQ(0, performer.Open("/dev/null", 0, 0)); |
| EXPECT_TRUE(performer.OpenKernel("/dev/null")); |
| EXPECT_EQ(4, performer.Write("junk", 4)); |
| EXPECT_EQ(8, performer.Write("morejunk", 8)); |
| EXPECT_LT(performer.Write("morejunk", 8), 0); |
| EXPECT_LT(performer.Close(), 0); |
| } |
| |
| TEST(DeltaPerformerTest, IsIdempotentOperationTest) { |
| DeltaArchiveManifest_InstallOperation op; |
| EXPECT_TRUE(DeltaPerformer::IsIdempotentOperation(op)); |
| *(op.add_dst_extents()) = ExtentForRange(0, 5); |
| EXPECT_TRUE(DeltaPerformer::IsIdempotentOperation(op)); |
| *(op.add_src_extents()) = ExtentForRange(4, 1); |
| EXPECT_FALSE(DeltaPerformer::IsIdempotentOperation(op)); |
| op.clear_src_extents(); |
| *(op.add_src_extents()) = ExtentForRange(5, 3); |
| EXPECT_TRUE(DeltaPerformer::IsIdempotentOperation(op)); |
| *(op.add_dst_extents()) = ExtentForRange(20, 6); |
| EXPECT_TRUE(DeltaPerformer::IsIdempotentOperation(op)); |
| *(op.add_src_extents()) = ExtentForRange(19, 2); |
| EXPECT_FALSE(DeltaPerformer::IsIdempotentOperation(op)); |
| } |
| |
| } // namespace chromeos_update_engine |
