Follow-up for PR #161 with the following tests: https://github.com/element-fi/elf-contracts/pull/161#discussion_r607251387 https://github.com/element-fi/elf-contracts/pull/161#discussion_r607273074 https://github.com/element-fi/elf-contracts/pull/161#discussion_r607273937 https://github.com/element-fi/elf-contracts/pull/161#discussion_r607274295
