Merge "Deflake libdm#CreateEmptyDevice test"

TEST(libdm, CreateEmptyDevice) {

    DeviceMapper& dm = DeviceMapper::Instance();

    ASSERT_TRUE(dm.CreateEmptyDevice("empty-device"));

    auto guard = android::base::make_scope_guard([&]() { dm.DeleteDevice("empty-device", 5s); });

    auto guard =

            android::base::make_scope_guard([&]() { dm.DeleteDeviceIfExists("empty-device", 5s); });

    // Empty device should be in suspended state.

    ASSERT_EQ(DmDeviceState::SUSPENDED, dm.GetState("empty-device"));

    std::string path;

    ASSERT_TRUE(dm.WaitForDevice("empty-device", 5s, &path));

    // Path should exist.

    ASSERT_EQ(0, access(path.c_str(), F_OK));

}