NEAR Evaluator: Integration Checks

This is a work in progress

This repository contains a set of complimentary challenges to the NEAR Evaluator. Each challenge is a set of integration tests that are ran against a smart contract you will be writing. The challenges are designed to help you learn how to write smart contracts on NEAR.

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How to use ?

1. cd into the tests of choice (e.g. contract_init)

cd contract_init

2. Install dependencies

npm install

3. Write the smart contract in the language of your choice (Rust, TS)
4. Run the tests scripts

npm run tests-rs

or

npm run tests-ts

Challenges:

contract_init

The contract_init would require you to explicitly initialize contracts state.

// TODO: Derive a macro to enforce initialization
// TODO: Add initialization function called 'init' that accepts (greeting: string) and returns Self and sets the state with this value

env_variables

The env_variables would present you with the following challenges.

// TODO: Add a function 'check_caller_is_bob' that returns true if the caller account_id is 'bob.test.near'

// TODO: Add a function 'check_caller_is_the_contract' that returns true if the contract is calling itself

// TODO: Add a function 'get_height' that returns the current execution block height

// TODO: Add a function 'check_enough_deposit' that returns true if the user deposited more than 1N to the call

// TODO: Add a function 'check_enough_gas' that returns true if the user attached more than 250TGas to the call

handle_transfers

The handle_transfers requires you to build a mock donation contract that handles NEAR transfers.

// TODO: Add function `donate` that accepts deposits and keeps track of the amount donated
// if the deposit exceeds the donation goal, the function should return the excess to the sender

private_functions

The private_functions would present you with the following challenges.

// TODO: Write a internal function "add" that's only callable by the contracts code
// The function should accept two integers (u8) a and b and returns the sum of the two parameters

// TODO: Write a public function "get_sum" that accepts two integers (u8) a and b and returns the sum of the two parameters
// Make use of the internal function "add" that you wrote above

// TODO: Write a public function "set_answer" that's only callable (private) from the Account ID that the contract has been deployed to
// The function should set the answer to 42 (self.answer = 42)