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Merge "snapuserd: Add test case"

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This commit is contained in:
Akilesh Kailash 2021-05-26 02:29:53 +00:00 • committed by Gerrit Code Review
commit 18a307beb4
1 changed files with 36 additions and 0 deletions
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36
fs_mgr/libsnapshot/cow_snapuserd_test.cpp
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@ -103,6 +103,7 @@ class CowSnapuserdTest final {
void ReadSnapshotDeviceAndValidate();
void Shutdown();
void MergeInterrupt();
void ReadDmUserBlockWithoutDaemon();
std::string snapshot_dev() const { return snapshot_dev_->path(); }
@ -481,6 +482,36 @@ void CowSnapuserdTest::CreateDmUserDevice() {
ASSERT_TRUE(android::fs_mgr::WaitForFile(misc_device, 10s));
}
void CowSnapuserdTest::ReadDmUserBlockWithoutDaemon() {
DmTable dmuser_table;
std::string dm_user_name = "dm-test-device";
unique_fd fd;
// Create a dm-user block device
ASSERT_TRUE(dmuser_table.AddTarget(std::make_unique<DmTargetUser>(0, 123456, dm_user_name)));
ASSERT_TRUE(dmuser_table.valid());
dmuser_dev_ = std::make_unique<TempDevice>(dm_user_name, dmuser_table);
ASSERT_TRUE(dmuser_dev_->valid());
ASSERT_FALSE(dmuser_dev_->path().empty());
fd.reset(open(dmuser_dev_->path().c_str(), O_RDONLY));
ASSERT_GE(fd, 0);
std::unique_ptr<uint8_t[]> buffer = std::make_unique<uint8_t[]>(1_MiB);
loff_t offset = 0;
// Every IO should fail as there is no daemon to process the IO
for (size_t j = 0; j < 10; j++) {
ASSERT_EQ(ReadFullyAtOffset(fd, (char*)buffer.get() + offset, BLOCK_SZ, offset), false);
offset += BLOCK_SZ;
}
fd = {};
ASSERT_TRUE(dmuser_dev_->Destroy());
}
void CowSnapuserdTest::InitDaemon() {
bool ok = client_->AttachDmUser(system_device_ctrl_name_);
ASSERT_TRUE(ok);
@ -909,6 +940,11 @@ TEST(Snapuserd_Test, Snapshot_COPY_Overlap_Merge_Resume_TEST) {
harness.Shutdown();
}
TEST(Snapuserd_Test, ReadDmUserBlockWithoutDaemon) {
CowSnapuserdTest harness;
harness.ReadDmUserBlockWithoutDaemon();
}
} // namespace snapshot
} // namespace android