# IBC Testkit `ibc-testkit` is a versatile library that provides essential abstractions and implementations, fulfilling a dual role of enabling rigorous integration testing for the [`ibc-rs`](https://github.com/cosmos/ibc-rs) implementation while also aiding host chains in addressing a broad spectrum of testing scenarios during their integrations with `ibc-rs`. - Note: `ibc-testkit` currently only supports `std` environments. See this [issue](https://github.com/cosmos/ibc-rs/issues/329) for more details.