Finalize test migration: remove legacy dependencies and test helpers (#4797)

test/utils/math/Math.test.js

@@ -3,10 +3,8 @@ const { expect } = require('chai');
 const { loadFixture } = require('@nomicfoundation/hardhat-network-helpers');
 const { PANIC_CODES } = require('@nomicfoundation/hardhat-chai-matchers/panic');
 
+const { Rounding } = require('../../helpers/enums');
 const { min, max } = require('../../helpers/math');
-const {
-  bigint: { Rounding },
-} = require('../../helpers/enums.js');
 
 const RoundingDown = [Rounding.Floor, Rounding.Trunc];
 const RoundingUp = [Rounding.Ceil, Rounding.Expand];

test/utils/math/SafeCast.test.js

@@ -9,7 +9,7 @@ async function fixture() {
   return { mock };
 }
 
-contract('SafeCast', function () {
+describe('SafeCast', function () {
   beforeEach(async function () {
     Object.assign(this, await loadFixture(fixture));
   });

test/utils/math/SignedMath.test.js

@@ -14,7 +14,7 @@ async function fixture() {
   return { mock };
 }
 
-contract('SignedMath', function () {
+describe('SignedMath', function () {
   beforeEach(async function () {
     Object.assign(this, await loadFixture(fixture));
   });