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      1 //
      2 // Copyright (C) 2015 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 "update_engine/payload_generator/payload_file.h"
     18 
     19 #include <string>
     20 #include <utility>
     21 #include <vector>
     22 
     23 #include <gtest/gtest.h>
     24 
     25 #include "update_engine/common/test_utils.h"
     26 #include "update_engine/payload_generator/extent_ranges.h"
     27 
     28 using std::string;
     29 using std::vector;
     30 
     31 namespace chromeos_update_engine {
     32 
     33 class PayloadFileTest : public ::testing::Test {
     34  protected:
     35   PayloadFile payload_;
     36 };
     37 
     38 TEST_F(PayloadFileTest, ReorderBlobsTest) {
     39   string orig_blobs;
     40   EXPECT_TRUE(utils::MakeTempFile("ReorderBlobsTest.orig.XXXXXX", &orig_blobs,
     41                                   nullptr));
     42   ScopedPathUnlinker orig_blobs_unlinker(orig_blobs);
     43 
     44   // The operations have three blob and one gap (the whitespace):
     45   // Rootfs operation 1: [8, 3] bcd
     46   // Rootfs operation 2: [7, 1] a
     47   // Kernel operation 1: [0, 6] kernel
     48   string orig_data = "kernel abcd";
     49   EXPECT_TRUE(
     50       utils::WriteFile(orig_blobs.c_str(), orig_data.data(), orig_data.size()));
     51 
     52   string new_blobs;
     53   EXPECT_TRUE(
     54       utils::MakeTempFile("ReorderBlobsTest.new.XXXXXX", &new_blobs, nullptr));
     55   ScopedPathUnlinker new_blobs_unlinker(new_blobs);
     56 
     57   payload_.part_vec_.resize(2);
     58 
     59   vector<AnnotatedOperation> aops;
     60   AnnotatedOperation aop;
     61   aop.op.set_data_offset(8);
     62   aop.op.set_data_length(3);
     63   aops.push_back(aop);
     64 
     65   aop.op.set_data_offset(7);
     66   aop.op.set_data_length(1);
     67   aops.push_back(aop);
     68   payload_.part_vec_[0].aops = aops;
     69 
     70   aop.op.set_data_offset(0);
     71   aop.op.set_data_length(6);
     72   payload_.part_vec_[1].aops = {aop};
     73 
     74   EXPECT_TRUE(payload_.ReorderDataBlobs(orig_blobs, new_blobs));
     75 
     76   const vector<AnnotatedOperation>& part0_aops = payload_.part_vec_[0].aops;
     77   const vector<AnnotatedOperation>& part1_aops = payload_.part_vec_[1].aops;
     78   string new_data;
     79   EXPECT_TRUE(utils::ReadFile(new_blobs, &new_data));
     80   // Kernel blobs should appear at the end.
     81   EXPECT_EQ("bcdakernel", new_data);
     82 
     83   EXPECT_EQ(2U, part0_aops.size());
     84   EXPECT_EQ(0U, part0_aops[0].op.data_offset());
     85   EXPECT_EQ(3U, part0_aops[0].op.data_length());
     86   EXPECT_EQ(3U, part0_aops[1].op.data_offset());
     87   EXPECT_EQ(1U, part0_aops[1].op.data_length());
     88 
     89   EXPECT_EQ(1U, part1_aops.size());
     90   EXPECT_EQ(4U, part1_aops[0].op.data_offset());
     91   EXPECT_EQ(6U, part1_aops[0].op.data_length());
     92 }
     93 
     94 }  // namespace chromeos_update_engine
     95