Setting variable states before testing in Truffle

Question

Can you set variables inside a smart contract before running your tests. I'm thinking of testing functions that won't pass when a variable has reached a certain number.

I.E.

1. Write a function that will only run when var_1 >= 800
2. Write a test where var_1 is = 799 and the test confirms the function fails
3. Write a test where var_1 is = 801 and the test confirms the function succeeds 

Answer 1

So, something like this?

const { exptect } = require("chai");
const { ethers } = require("hardhat");

describe("contract test" () => {
  let contract;
  
   beforeEach(async () => {
    // Before each test, we create a new contract instance, this is to prevent contract modifications between tests, and having each test executed without the interference of contract modification other tests.
    let Contract = await ethers.getContractFactory("Contract");
    await contract = Contract.deploy();
    await contract.deployed();
   });
   
   // Write a test where var_1 is = 799 and the test confirms the function fails.
   it("Should fail if var_1 is = 799", async () => {
   
      // set var_1 value.
      const tx = await contract.setVar1(799);
      await tx.wait();
      
      // Test function excepts...
      ...
   });
}