# Use Remix and Metamask to test smart contract

## Install Metamask

- https://metamask.io/download/

- Faucet ETH testnet (Rinkeby testnet): https://faucet.metamask.io/

- Switch to Rinkeby testnet


- Switch account in Metamask



## Use Remix

Access to URL of Remix: https://remix.ethereum.org/

### Step 1: Create contract file

- Create new file in folder **contracts**

- Create file **MetareumXP.sol**

- Copy code to **MetareumXP.sol**

### Step 2: Compile smart contract

- Switch to **Solidity Compiler** tab

- Choose version Solidty fit with `pragma solidity` (In here is 0.8.7)

- Press button Compile MetareumXP.sol

- Compile success

### Step 3: Deploy smart contract to Rinkeby testnet

- Switch to "Deploy & run transactions" tab

- Switch *ENVIRONMENT* from **Remix VM(London)** to **Injected Provider - Metamask**

- Press button **Deploy** and Confirm transaction with Metamask (Balance ETH > 0)

- Deploy Successfully, Instance of contract will visible **Deployed Contracts*8 tab.


### Step 4: Test function in smart contract

### Check balance token

- Paste address to input parameter, press **balanceOf**


### Check name token

- Call **name** function

### Check symbol token

- Call **symbol** function


### Check total supply

- Call **totalSupply** function


### Transfer token (balanceOf > 0)

- Call function **transfer** or **transferFrom**


- Confim with Metamask


- New balance of sender


- New balance of receiver


### Mint token (only admin - address deploy contract)


- If address is not admin, transaction will fail

### Burn token


- New balance after burn