Crate cw_multi_test

Multitest is a design to simulate a blockchain environment in pure Rust. This allows us to run unit tests that involve contract -> contract, and contract -> bank interactions. This is not intended to be a full blockchain app but to simulate the Cosmos SDK x/wasm module close enough to gain confidence in multi-contract deployments before testing them on a live blockchain.

To understand the design of this module, please refer to ../DESIGN.md

Modules

• addons
  MultiTest add-ons
• custom_handler
• error

Structs

• AcceptingModule
• App
  Router is a persisted state. You can query this. Execution generally happens on the RouterCache, which then can be atomically committed or rolled back. We offer .execute() as a wrapper around cache, execute, commit/rollback process.
• AppBuilder
  Utility to build App in stages. When particular properties are not explicitly set, then default values are used.
• AppResponse
• BankKeeper
• ContractData
  Contract data includes information about contract, equivalent of ContractInfo in wasmd interface.
• ContractWrapper
  Wraps the exported functions from a contract and provides the normalized format Place T4 and E4 at the end, as we just want default placeholders for most contracts that don’t have sudo
• DistributionKeeper
• FailingModule
• Router
• SimpleAddressGenerator
  Default contract address generator used in WasmKeeper.
• StakeKeeper
• StakingInfo
• StargateAccepting
  Always accepting stargate mock implementation.
• StargateFailing
  Always failing stargate mock implementation.
• WasmKeeper
• WasmSudo

Enums

• BankSudo
• StakingSudo
• SudoMsg
  We use it to allow calling into modules from another module in sudo mode. Things like gov proposals belong here.

Traits

• AddressGenerator
  Common address generator interface.
• Bank
• ChecksumGenerator
  An interface to call custom checksum generator for contract’s code.
• Contract
  Interface to call into a Contract.
• CosmosRouter
• Distribution
• Executor
• Gov
• Ibc
• Module
  Module interface.
• Staking
• Stargate
  Stargate interface.
• Wasm
  Interface to call into a Wasm module.

Functions

• custom_app
  Creates new default App implementation working with customized exec and query messages. Outside of App implementation to make type elision better.
• next_block
• no_init
  No-op application initialization function.

Type Aliases

• BasicApp
  Type alias for default build App to make its storing simpler in typical scenario
• BasicAppBuilder
  This is essential to create a custom app with custom module.
• GovAcceptingModule
• GovFailingModule
• IbcAcceptingModule
• IbcFailingModule