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First Solidity Task

Instructions

  • Setup your dev environment. It's recommended you use yarn as a package manager and hardhat as your Blockchain framework. It's ok to use truffle if you prefer it here.
  • Complete the escrow smart contract described below
  • Write Javascript unit tests for each function
  • Confirm that the GitHub test workflow action runs your unit tests and they pass

Acceptance Criteria

  • The Escrow smart contract has the depositFor() and release() functions specified below and they work
  • There's 100% code coverage
  • All smart contract tests are run by GitHub actions CI on each push to GitHub and they are all passing
  • Code shouuld be readable and maintainable

Escrow Smart Contract Functionality

Has a depositFor(...) function

  1. When the function is called it takes the deposited amount of ETH from the payer account that called depositFor().
  2. Sets the payee address.
  3. The ETH is held by the smart contract in "escrow" for the payee.
  4. Sets a separate releaser account that will release the transfer to the receiver. This third account will be a different account than the depositing account or the receiver.
  5. This function can be called by anyone to create their own escrow. The contract can manage multiple escrows for different payer, payee and releaser accounts with separate ETH deposit amounts.
  6. Write tests for each of thes conditions.

Has an release(...) function

  1. Transfers the tokens to the receiver address that was specified when the escrow was created with the depositFor function call
  2. release can only be called by the releaser account that was specified when the escrow was created with the depositFor function call
  3. Write tests for each of thes conditions.