Hello i am using mocha and chai testing framework and library into the below code but this code give me a error at the time of when i am create the products using cretateProducts function. and the error in createProducts is not a function.

var TestForSmartContract = artifacts.require('MarketPlace.sol');
var assert = require('assert');

contract("MarketPlace",(accounts)=>{
    let marketplace;
    describe('Deploy Or Not',()=>{
        it("Deploy SuccessFully",()=>{
            const address =  TestForSmartContract.address;
            assert.notEqual(address,"");
            assert.notEqual(address,0x0);
            assert.notEqual(address,null);
            assert.notEqual(address,undefined);

        });

        
    })

    describe("For The Products",()=>{
        let createProducts;
        let counts;
        before(async()=>{
             createProducts = TestForSmartContract.CrateProducts('I-Phone',web3.utils.toWei('1','Ether'));
             counts = TestForSmartContract.productsCount();
        })

        it('The Producst Count',()=>{
            assert.equal(counts,1);
        })
    })
    
})