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Move out the code to parse block map in MemMap

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We will reuse them to implement the fuse provider from block maps.

Test: unit tests pass, sideload an OTA
Change-Id: Iaa409d19569c4ccc0bb24e12518044fcddb45c69
This commit is contained in:
xunchang
2019-03-22 09:33:49 -07:00
parent 6287253eb4
commit 625c588c0f
3 changed files with 192 additions and 71 deletions
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tests/unit/sysutil_test.cpp
+61
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@@ -17,8 +17,10 @@
#include <string>
#include <android-base/file.h>
#include <android-base/strings.h>
#include <gtest/gtest.h>
#include "otautil/rangeset.h"
#include "otautil/sysutil.h"
TEST(SysUtilTest, InvalidArgs) {
@@ -28,6 +30,65 @@ TEST(SysUtilTest, InvalidArgs) {
ASSERT_FALSE(mapping.MapFile(""));
}
TEST(SysUtilTest, ParseBlockMapFile_smoke) {
std::vector<std::string> content = {
"/dev/abc", "49652 4096", "3", "1000 1008", "2100 2102", "30 33",
};
TemporaryFile temp_file;
ASSERT_TRUE(android::base::WriteStringToFile(android::base::Join(content, '\n'), temp_file.path));
auto block_map_data = BlockMapData::ParseBlockMapFile(temp_file.path);
ASSERT_EQ("/dev/abc", block_map_data.path());
ASSERT_EQ(49652, block_map_data.file_size());
ASSERT_EQ(4096, block_map_data.block_size());
ASSERT_EQ(RangeSet(std::vector<Range>{
{ 1000, 1008 },
{ 2100, 2102 },
{ 30, 33 },
}),
block_map_data.block_ranges());
}
TEST(SysUtilTest, ParseBlockMapFile_invalid_line_count) {
std::vector<std::string> content = {
"/dev/abc", "49652 4096", "2", "1000 1008", "2100 2102", "30 33",
};
TemporaryFile temp_file;
ASSERT_TRUE(android::base::WriteStringToFile(android::base::Join(content, '\n'), temp_file.path));
auto block_map_data1 = BlockMapData::ParseBlockMapFile(temp_file.path);
ASSERT_FALSE(block_map_data1);
}
TEST(SysUtilTest, ParseBlockMapFile_invalid_size) {
std::vector<std::string> content = {
"/dev/abc",
"42949672950 4294967295",
"1",
"0 9",
};
TemporaryFile temp_file;
ASSERT_TRUE(android::base::WriteStringToFile(android::base::Join(content, '\n'), temp_file.path));
auto block_map_data = BlockMapData::ParseBlockMapFile(temp_file.path);
ASSERT_EQ("/dev/abc", block_map_data.path());
ASSERT_EQ(42949672950, block_map_data.file_size());
ASSERT_EQ(4294967295, block_map_data.block_size());
content[1] = "42949672950 4294967296";
ASSERT_TRUE(android::base::WriteStringToFile(android::base::Join(content, '\n'), temp_file.path));
auto large_block_size = BlockMapData::ParseBlockMapFile(temp_file.path);
ASSERT_FALSE(large_block_size);
content[1] = "4294967296 1";
ASSERT_TRUE(android::base::WriteStringToFile(android::base::Join(content, '\n'), temp_file.path));
auto too_many_blocks = BlockMapData::ParseBlockMapFile(temp_file.path);
ASSERT_FALSE(too_many_blocks);
}
TEST(SysUtilTest, MapFileRegularFile) {
TemporaryFile temp_file1;
std::string content = "abc";