From db7ab370d9b685b007c7465e7dbb47aa78221e16 Mon Sep 17 00:00:00 2001
From: Gonzalo Diaz <devel@gon.cl>
Date: Tue, 9 Apr 2024 15:23:47 -0400
Subject: [PATCH] [REFACTOR] Eslint warnings fixed

---
 src/hackerrank/implementation/betweenTwoSets.test.ts            | 1 +
 src/hackerrank/implementation/birthday.test.ts                  | 1 +
 src/hackerrank/implementation/bonAppetit.test.ts                | 1 +
 src/hackerrank/implementation/breakingRecords.test.ts           | 1 +
 src/hackerrank/implementation/countApplesAndOranges.test.ts     | 1 +
 src/hackerrank/implementation/countingValleys.test.ts           | 1 +
 src/hackerrank/implementation/dayOfProgrammer.test.ts           | 1 +
 src/hackerrank/implementation/divisibleSumPairs.test.ts         | 1 +
 src/hackerrank/implementation/gradingStudents.test.ts           | 1 +
 src/hackerrank/implementation/jumpingOnClouds.test.ts           | 1 +
 src/hackerrank/implementation/kangaroo.test.ts                  | 1 +
 src/hackerrank/implementation/migratoryBirds.test.ts            | 1 +
 src/hackerrank/implementation/minimumAbsoluteDifference.test.ts | 1 +
 src/hackerrank/implementation/repeatedString.test.ts            | 1 +
 src/hackerrank/implementation/sockMerchant.test.ts              | 1 +
 src/hackerrank/projecteuler/euler001.test.ts                    | 1 +
 src/hackerrank/warmup/aVeryBigSum.test.ts                       | 1 +
 src/hackerrank/warmup/birthdayCakeCandles.test.ts               | 1 +
 src/hackerrank/warmup/compareTriplets.test.ts                   | 1 +
 src/hackerrank/warmup/diagonalDifference.test.ts                | 1 +
 src/hackerrank/warmup/miniMaxSum.test.ts                        | 1 +
 src/hackerrank/warmup/plusMinus.test.ts                         | 1 +
 src/hackerrank/warmup/simpleArraySum.test.ts                    | 1 +
 src/hackerrank/warmup/solveMeFirst.test.ts                      | 1 +
 src/hackerrank/warmup/staircase.test.ts                         | 1 +
 src/hackerrank/warmup/timeConversion.test.ts                    | 1 +
 src/hello_world.test.ts                                         | 2 ++
 src/logger.test.ts                                              | 1 +
 src/problem0000.test.ts                                         | 1 +
 src/projecteuler/helpers/bigNumbers.test.ts                     | 2 ++
 src/projecteuler/helpers/collatz.test.ts                        | 2 ++
 src/projecteuler/helpers/divisors.test.ts                       | 2 ++
 src/projecteuler/helpers/isPalindrome.test.ts                   | 2 ++
 src/projecteuler/helpers/matrix.test.ts                         | 2 ++
 src/projecteuler/helpers/minmax.test.ts                         | 2 ++
 src/projecteuler/helpers/numberToWord.test.ts                   | 2 ++
 src/projecteuler/helpers/product.test.ts                        | 2 ++
 src/projecteuler/helpers/sum.test.ts                            | 2 ++
 src/projecteuler/helpers/wordScore.test.ts                      | 2 ++
 src/projecteuler/lib/BNode.test.ts                              | 1 +
 src/projecteuler/lib/BNodeBuilder.test.ts                       | 1 +
 src/projecteuler/problem0001.test.ts                            | 1 +
 src/projecteuler/problem0002.test.ts                            | 1 +
 src/projecteuler/problem0003.test.ts                            | 1 +
 src/projecteuler/problem0004.test.ts                            | 1 +
 src/projecteuler/problem0005-simple.test.ts                     | 1 +
 src/projecteuler/problem0005.bruteforce-test.ts                 | 1 +
 src/projecteuler/problem0005.test.ts                            | 1 +
 src/projecteuler/problem0006.test.ts                            | 1 +
 src/projecteuler/problem0007.bruteforce-test.ts                 | 1 +
 src/projecteuler/problem0007.test.ts                            | 1 +
 src/projecteuler/problem0008.test.ts                            | 1 +
 src/projecteuler/problem0009.test.ts                            | 1 +
 src/projecteuler/problem0010.bruteforce-test.ts                 | 1 +
 src/projecteuler/problem0010.test.ts                            | 1 +
 src/projecteuler/problem0011.test.ts                            | 1 +
 src/projecteuler/problem0012.test.ts                            | 1 +
 src/projecteuler/problem0013.test.ts                            | 1 +
 src/projecteuler/problem0014.test.ts                            | 1 +
 src/projecteuler/problem0015.test.ts                            | 1 +
 src/projecteuler/problem0016.test.ts                            | 1 +
 src/projecteuler/problem0017.test.ts                            | 1 +
 src/projecteuler/problem0018.test.ts                            | 1 +
 src/projecteuler/problem0019.test.ts                            | 1 +
 src/projecteuler/problem0020.test.ts                            | 2 ++
 src/projecteuler/problem0021.test.ts                            | 1 +
 src/projecteuler/problem0022.test.ts                            | 1 +
 src/projecteuler/problem0023.test.ts                            | 1 +
 src/projecteuler/problem0024.test.ts                            | 1 +
 src/projecteuler/problem0025.test.ts                            | 1 +
 70 files changed, 82 insertions(+)

diff --git a/src/hackerrank/implementation/betweenTwoSets.test.ts b/src/hackerrank/implementation/betweenTwoSets.test.ts
index 759bf94e..5e81e79e 100644
--- a/src/hackerrank/implementation/betweenTwoSets.test.ts
+++ b/src/hackerrank/implementation/betweenTwoSets.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { getTotalX, factorOf, isFactor } from './betweenTwoSets';
diff --git a/src/hackerrank/implementation/birthday.test.ts b/src/hackerrank/implementation/birthday.test.ts
index ccf14c90..df86eb62 100644
--- a/src/hackerrank/implementation/birthday.test.ts
+++ b/src/hackerrank/implementation/birthday.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { birthday } from './birthday';
diff --git a/src/hackerrank/implementation/bonAppetit.test.ts b/src/hackerrank/implementation/bonAppetit.test.ts
index dc474b50..5fb6f841 100644
--- a/src/hackerrank/implementation/bonAppetit.test.ts
+++ b/src/hackerrank/implementation/bonAppetit.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { bonAppetit } from './bonAppetit';
diff --git a/src/hackerrank/implementation/breakingRecords.test.ts b/src/hackerrank/implementation/breakingRecords.test.ts
index f29f9614..4993ce6d 100644
--- a/src/hackerrank/implementation/breakingRecords.test.ts
+++ b/src/hackerrank/implementation/breakingRecords.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { breakingRecords } from './breakingRecords';
diff --git a/src/hackerrank/implementation/countApplesAndOranges.test.ts b/src/hackerrank/implementation/countApplesAndOranges.test.ts
index dbcd6f7a..48fb1aea 100644
--- a/src/hackerrank/implementation/countApplesAndOranges.test.ts
+++ b/src/hackerrank/implementation/countApplesAndOranges.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { countApplesAndOranges } from './countApplesAndOranges';
diff --git a/src/hackerrank/implementation/countingValleys.test.ts b/src/hackerrank/implementation/countingValleys.test.ts
index a68662b3..7a715fd6 100644
--- a/src/hackerrank/implementation/countingValleys.test.ts
+++ b/src/hackerrank/implementation/countingValleys.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { countingValleys } from './countingValleys';
diff --git a/src/hackerrank/implementation/dayOfProgrammer.test.ts b/src/hackerrank/implementation/dayOfProgrammer.test.ts
index ee7f52e6..23f8978d 100644
--- a/src/hackerrank/implementation/dayOfProgrammer.test.ts
+++ b/src/hackerrank/implementation/dayOfProgrammer.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { dayOfProgrammer } from './dayOfProgrammer';
diff --git a/src/hackerrank/implementation/divisibleSumPairs.test.ts b/src/hackerrank/implementation/divisibleSumPairs.test.ts
index e17b034a..929e1382 100644
--- a/src/hackerrank/implementation/divisibleSumPairs.test.ts
+++ b/src/hackerrank/implementation/divisibleSumPairs.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { divisibleSumPairs } from './divisibleSumPairs';
diff --git a/src/hackerrank/implementation/gradingStudents.test.ts b/src/hackerrank/implementation/gradingStudents.test.ts
index 64334891..40c1b2b8 100644
--- a/src/hackerrank/implementation/gradingStudents.test.ts
+++ b/src/hackerrank/implementation/gradingStudents.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { gradingStudents } from './gradingStudents';
diff --git a/src/hackerrank/implementation/jumpingOnClouds.test.ts b/src/hackerrank/implementation/jumpingOnClouds.test.ts
index c161d369..d59b3c8a 100644
--- a/src/hackerrank/implementation/jumpingOnClouds.test.ts
+++ b/src/hackerrank/implementation/jumpingOnClouds.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { jumpingOnClouds } from './jumpingOnClouds';
diff --git a/src/hackerrank/implementation/kangaroo.test.ts b/src/hackerrank/implementation/kangaroo.test.ts
index 05b7bb40..7dc8c23a 100644
--- a/src/hackerrank/implementation/kangaroo.test.ts
+++ b/src/hackerrank/implementation/kangaroo.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { kangaroo } from './kangaroo';
diff --git a/src/hackerrank/implementation/migratoryBirds.test.ts b/src/hackerrank/implementation/migratoryBirds.test.ts
index 8b52414c..ab6e7205 100644
--- a/src/hackerrank/implementation/migratoryBirds.test.ts
+++ b/src/hackerrank/implementation/migratoryBirds.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { migratoryBirds } from './migratoryBirds';
diff --git a/src/hackerrank/implementation/minimumAbsoluteDifference.test.ts b/src/hackerrank/implementation/minimumAbsoluteDifference.test.ts
index aa541d5a..d2371149 100644
--- a/src/hackerrank/implementation/minimumAbsoluteDifference.test.ts
+++ b/src/hackerrank/implementation/minimumAbsoluteDifference.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { minimumAbsoluteDifference } from './minimumAbsoluteDifference';
diff --git a/src/hackerrank/implementation/repeatedString.test.ts b/src/hackerrank/implementation/repeatedString.test.ts
index 3076b84f..931cdd31 100644
--- a/src/hackerrank/implementation/repeatedString.test.ts
+++ b/src/hackerrank/implementation/repeatedString.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { repeatedString } from './repeatedString';
diff --git a/src/hackerrank/implementation/sockMerchant.test.ts b/src/hackerrank/implementation/sockMerchant.test.ts
index a691e2cb..768cbb6f 100644
--- a/src/hackerrank/implementation/sockMerchant.test.ts
+++ b/src/hackerrank/implementation/sockMerchant.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { sockMerchant } from './sockMerchant';
diff --git a/src/hackerrank/projecteuler/euler001.test.ts b/src/hackerrank/projecteuler/euler001.test.ts
index 34e04b9c..31729c39 100755
--- a/src/hackerrank/projecteuler/euler001.test.ts
+++ b/src/hackerrank/projecteuler/euler001.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { euler001 } from './euler001';
diff --git a/src/hackerrank/warmup/aVeryBigSum.test.ts b/src/hackerrank/warmup/aVeryBigSum.test.ts
index 4207a5a2..d7e51c81 100644
--- a/src/hackerrank/warmup/aVeryBigSum.test.ts
+++ b/src/hackerrank/warmup/aVeryBigSum.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { aVeryBigSum } from './aVeryBigSum';
diff --git a/src/hackerrank/warmup/birthdayCakeCandles.test.ts b/src/hackerrank/warmup/birthdayCakeCandles.test.ts
index 32a93af0..0141f456 100644
--- a/src/hackerrank/warmup/birthdayCakeCandles.test.ts
+++ b/src/hackerrank/warmup/birthdayCakeCandles.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { birthdayCakeCandles } from './birthdayCakeCandles';
diff --git a/src/hackerrank/warmup/compareTriplets.test.ts b/src/hackerrank/warmup/compareTriplets.test.ts
index 1cf1c42a..6f5b30d7 100644
--- a/src/hackerrank/warmup/compareTriplets.test.ts
+++ b/src/hackerrank/warmup/compareTriplets.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { compareTriplets } from './compareTriplets';
diff --git a/src/hackerrank/warmup/diagonalDifference.test.ts b/src/hackerrank/warmup/diagonalDifference.test.ts
index dd86ecee..4e3c6ca8 100644
--- a/src/hackerrank/warmup/diagonalDifference.test.ts
+++ b/src/hackerrank/warmup/diagonalDifference.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { diagonalDifference } from './diagonalDifference';
diff --git a/src/hackerrank/warmup/miniMaxSum.test.ts b/src/hackerrank/warmup/miniMaxSum.test.ts
index dca37d1a..7d654c49 100644
--- a/src/hackerrank/warmup/miniMaxSum.test.ts
+++ b/src/hackerrank/warmup/miniMaxSum.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { miniMaxSum } from './miniMaxSum';
diff --git a/src/hackerrank/warmup/plusMinus.test.ts b/src/hackerrank/warmup/plusMinus.test.ts
index 6c057595..6cbdb556 100644
--- a/src/hackerrank/warmup/plusMinus.test.ts
+++ b/src/hackerrank/warmup/plusMinus.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { plusMinus } from './plusMinus';
diff --git a/src/hackerrank/warmup/simpleArraySum.test.ts b/src/hackerrank/warmup/simpleArraySum.test.ts
index e262049d..0249bded 100644
--- a/src/hackerrank/warmup/simpleArraySum.test.ts
+++ b/src/hackerrank/warmup/simpleArraySum.test.ts
@@ -2,6 +2,7 @@ import { logger as console } from '../../logger';
 
 import { simpleArraySum } from './simpleArraySum';
 
+import { describe, expect, it } from '@jest/globals';
 describe('problem simpleArraySum', () => {
   it('problem simpleArraySum Test case 0', () => {
     expect.assertions(1);
diff --git a/src/hackerrank/warmup/solveMeFirst.test.ts b/src/hackerrank/warmup/solveMeFirst.test.ts
index d539da35..ba01b48a 100644
--- a/src/hackerrank/warmup/solveMeFirst.test.ts
+++ b/src/hackerrank/warmup/solveMeFirst.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { solveMeFirst } from './solveMeFirst';
diff --git a/src/hackerrank/warmup/staircase.test.ts b/src/hackerrank/warmup/staircase.test.ts
index e1594c31..9f204b18 100644
--- a/src/hackerrank/warmup/staircase.test.ts
+++ b/src/hackerrank/warmup/staircase.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../logger';
 
 import { staircase } from './staircase';
diff --git a/src/hackerrank/warmup/timeConversion.test.ts b/src/hackerrank/warmup/timeConversion.test.ts
index 76df3081..6fd38c0e 100644
--- a/src/hackerrank/warmup/timeConversion.test.ts
+++ b/src/hackerrank/warmup/timeConversion.test.ts
@@ -2,6 +2,7 @@ import { logger as console } from '../../logger';
 
 import { timeConversion } from './timeConversion';
 
+import { describe, expect, it } from '@jest/globals';
 describe('timeConversion', () => {
   it('timeConversion example', () => {
     expect.assertions(2);
diff --git a/src/hello_world.test.ts b/src/hello_world.test.ts
index 073ac520..7ad0edbe 100644
--- a/src/hello_world.test.ts
+++ b/src/hello_world.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { hello } from '../src/hello_world';
 
 describe('test hello', () => {
diff --git a/src/logger.test.ts b/src/logger.test.ts
index 98a67118..03e6eb26 100644
--- a/src/logger.test.ts
+++ b/src/logger.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from './logger';
 
 describe('logger', () => {
diff --git a/src/problem0000.test.ts b/src/problem0000.test.ts
index 2fafe84b..1d433c21 100644
--- a/src/problem0000.test.ts
+++ b/src/problem0000.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from './logger';
 
 import { problem0000 } from './problem0000';
diff --git a/src/projecteuler/helpers/bigNumbers.test.ts b/src/projecteuler/helpers/bigNumbers.test.ts
index c634a151..b38e1a6b 100644
--- a/src/projecteuler/helpers/bigNumbers.test.ts
+++ b/src/projecteuler/helpers/bigNumbers.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import {
   bigMultiply,
   bigMultiplyRowToString,
diff --git a/src/projecteuler/helpers/collatz.test.ts b/src/projecteuler/helpers/collatz.test.ts
index dc53e5b7..5e01ef7d 100644
--- a/src/projecteuler/helpers/collatz.test.ts
+++ b/src/projecteuler/helpers/collatz.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { collatz } from './';
 
 // 13 → 40 → 20 → 10 → 5 → 16 → 8 → 4 → 2 → 1
diff --git a/src/projecteuler/helpers/divisors.test.ts b/src/projecteuler/helpers/divisors.test.ts
index afdaaa2e..84132d34 100644
--- a/src/projecteuler/helpers/divisors.test.ts
+++ b/src/projecteuler/helpers/divisors.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import {
   abundance,
   divisors,
diff --git a/src/projecteuler/helpers/isPalindrome.test.ts b/src/projecteuler/helpers/isPalindrome.test.ts
index 4ae8dc37..1affb7a8 100644
--- a/src/projecteuler/helpers/isPalindrome.test.ts
+++ b/src/projecteuler/helpers/isPalindrome.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { isPalindrome } from './';
 
 describe('number is Palindrome', () => {
diff --git a/src/projecteuler/helpers/matrix.test.ts b/src/projecteuler/helpers/matrix.test.ts
index 7b562398..cedb8cd1 100644
--- a/src/projecteuler/helpers/matrix.test.ts
+++ b/src/projecteuler/helpers/matrix.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { matrix } from './';
 
 describe('matrix generator', () => {
diff --git a/src/projecteuler/helpers/minmax.test.ts b/src/projecteuler/helpers/minmax.test.ts
index 1f80ec85..4503c98c 100644
--- a/src/projecteuler/helpers/minmax.test.ts
+++ b/src/projecteuler/helpers/minmax.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { minimum, maximum } from './';
 
 describe('maximum and minimum', () => {
diff --git a/src/projecteuler/helpers/numberToWord.test.ts b/src/projecteuler/helpers/numberToWord.test.ts
index 5feca96e..44897228 100644
--- a/src/projecteuler/helpers/numberToWord.test.ts
+++ b/src/projecteuler/helpers/numberToWord.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { numberToWord } from './';
 
 describe('transform numbers to word representation in british english', () => {
diff --git a/src/projecteuler/helpers/product.test.ts b/src/projecteuler/helpers/product.test.ts
index f0eced39..f172f43f 100644
--- a/src/projecteuler/helpers/product.test.ts
+++ b/src/projecteuler/helpers/product.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { product } from './';
 
 describe('product of all numbers in array', () => {
diff --git a/src/projecteuler/helpers/sum.test.ts b/src/projecteuler/helpers/sum.test.ts
index 37233d3a..3d719c2f 100644
--- a/src/projecteuler/helpers/sum.test.ts
+++ b/src/projecteuler/helpers/sum.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { sum } from './';
 
 describe('sum all numbers in array', () => {
diff --git a/src/projecteuler/helpers/wordScore.test.ts b/src/projecteuler/helpers/wordScore.test.ts
index bfa2c157..0a072e59 100644
--- a/src/projecteuler/helpers/wordScore.test.ts
+++ b/src/projecteuler/helpers/wordScore.test.ts
@@ -1,3 +1,5 @@
+import { describe, expect, it } from '@jest/globals';
+
 import { wordScore } from './';
 
 describe('wordScore', () => {
diff --git a/src/projecteuler/lib/BNode.test.ts b/src/projecteuler/lib/BNode.test.ts
index 1bcb4c90..368196f2 100644
--- a/src/projecteuler/lib/BNode.test.ts
+++ b/src/projecteuler/lib/BNode.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { BNode } from './BNode';
 
 describe('class BNode for binary trees', () => {
diff --git a/src/projecteuler/lib/BNodeBuilder.test.ts b/src/projecteuler/lib/BNodeBuilder.test.ts
index 36033b34..2e7d970a 100644
--- a/src/projecteuler/lib/BNodeBuilder.test.ts
+++ b/src/projecteuler/lib/BNodeBuilder.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { BNode } from './BNode';
 import { BNodeBuilder } from './BNodeBuilder';
 
diff --git a/src/projecteuler/problem0001.test.ts b/src/projecteuler/problem0001.test.ts
index 85f83b2a..60d7c21b 100644
--- a/src/projecteuler/problem0001.test.ts
+++ b/src/projecteuler/problem0001.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0001 } from './problem0001';
diff --git a/src/projecteuler/problem0002.test.ts b/src/projecteuler/problem0002.test.ts
index fb6bb370..8625abac 100644
--- a/src/projecteuler/problem0002.test.ts
+++ b/src/projecteuler/problem0002.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0002 } from './problem0002';
diff --git a/src/projecteuler/problem0003.test.ts b/src/projecteuler/problem0003.test.ts
index e25b363d..3f87f785 100644
--- a/src/projecteuler/problem0003.test.ts
+++ b/src/projecteuler/problem0003.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0003 } from './problem0003';
diff --git a/src/projecteuler/problem0004.test.ts b/src/projecteuler/problem0004.test.ts
index 30994f77..f7a58259 100644
--- a/src/projecteuler/problem0004.test.ts
+++ b/src/projecteuler/problem0004.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0004 } from './problem0004';
diff --git a/src/projecteuler/problem0005-simple.test.ts b/src/projecteuler/problem0005-simple.test.ts
index 1c02a9b3..955b41ac 100644
--- a/src/projecteuler/problem0005-simple.test.ts
+++ b/src/projecteuler/problem0005-simple.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0005Simple } from './problem0005-simple';
diff --git a/src/projecteuler/problem0005.bruteforce-test.ts b/src/projecteuler/problem0005.bruteforce-test.ts
index b7fd77f9..4a9bac11 100644
--- a/src/projecteuler/problem0005.bruteforce-test.ts
+++ b/src/projecteuler/problem0005.bruteforce-test.ts
@@ -2,6 +2,7 @@ import { logger as console } from '../logger';
 
 import { problem0005Simple } from './problem0005-simple';
 
+import { describe, expect, it } from '@jest/globals';
 describe('problem 0005 simple', () => {
   it('problem 0005 simple solution found by BRUTE FORCE FULL', async () => {
     expect.assertions(1);
diff --git a/src/projecteuler/problem0005.test.ts b/src/projecteuler/problem0005.test.ts
index 7db62de8..a572667c 100644
--- a/src/projecteuler/problem0005.test.ts
+++ b/src/projecteuler/problem0005.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0005 } from './problem0005';
diff --git a/src/projecteuler/problem0006.test.ts b/src/projecteuler/problem0006.test.ts
index 2eff449e..3c57d954 100644
--- a/src/projecteuler/problem0006.test.ts
+++ b/src/projecteuler/problem0006.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0006 } from './problem0006';
diff --git a/src/projecteuler/problem0007.bruteforce-test.ts b/src/projecteuler/problem0007.bruteforce-test.ts
index c557c279..732192f0 100644
--- a/src/projecteuler/problem0007.bruteforce-test.ts
+++ b/src/projecteuler/problem0007.bruteforce-test.ts
@@ -6,6 +6,7 @@ import { logger as console } from '../logger';
 
 import { problem0007 } from './problem0007';
 
+import { describe, expect, it } from '@jest/globals';
 describe('problem 0007 BRUTEFORCE', () => {
   it('problem 0007 BRUTEFORCE large', () => {
     expect.assertions(1);
diff --git a/src/projecteuler/problem0007.test.ts b/src/projecteuler/problem0007.test.ts
index 07bc7db3..b344e968 100644
--- a/src/projecteuler/problem0007.test.ts
+++ b/src/projecteuler/problem0007.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0007 } from './problem0007';
diff --git a/src/projecteuler/problem0008.test.ts b/src/projecteuler/problem0008.test.ts
index b1596568..fe7c5ef3 100644
--- a/src/projecteuler/problem0008.test.ts
+++ b/src/projecteuler/problem0008.test.ts
@@ -2,6 +2,7 @@ import { logger as console } from '../logger';
 
 import { problem0008 } from './problem0008';
 
+import { describe, expect, it } from '@jest/globals';
 describe('problem 0008', () => {
   it('problem 0008 solution found', () => {
     expect.assertions(1);
diff --git a/src/projecteuler/problem0009.test.ts b/src/projecteuler/problem0009.test.ts
index 3010ab17..69a07fb4 100644
--- a/src/projecteuler/problem0009.test.ts
+++ b/src/projecteuler/problem0009.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0009 } from './problem0009';
diff --git a/src/projecteuler/problem0010.bruteforce-test.ts b/src/projecteuler/problem0010.bruteforce-test.ts
index e677e4f6..ef8b423b 100644
--- a/src/projecteuler/problem0010.bruteforce-test.ts
+++ b/src/projecteuler/problem0010.bruteforce-test.ts
@@ -4,6 +4,7 @@ import { logger as console } from '../logger';
 
 import { problem0010 } from './problem0010';
 
+import { describe, expect, it } from '@jest/globals';
 describe('problem 0010', () => {
   it('problem 0010 solution found BRUTE FORCE', () => {
     expect.assertions(1);
diff --git a/src/projecteuler/problem0010.test.ts b/src/projecteuler/problem0010.test.ts
index b45bc8ad..ce22279e 100644
--- a/src/projecteuler/problem0010.test.ts
+++ b/src/projecteuler/problem0010.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0010 } from './problem0010';
diff --git a/src/projecteuler/problem0011.test.ts b/src/projecteuler/problem0011.test.ts
index dd4a473d..4981fb89 100644
--- a/src/projecteuler/problem0011.test.ts
+++ b/src/projecteuler/problem0011.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0011 } from './problem0011';
diff --git a/src/projecteuler/problem0012.test.ts b/src/projecteuler/problem0012.test.ts
index 04d394bc..7d61625f 100644
--- a/src/projecteuler/problem0012.test.ts
+++ b/src/projecteuler/problem0012.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0012 } from './problem0012';
diff --git a/src/projecteuler/problem0013.test.ts b/src/projecteuler/problem0013.test.ts
index e642ac31..80bde4e3 100644
--- a/src/projecteuler/problem0013.test.ts
+++ b/src/projecteuler/problem0013.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0013 } from './problem0013';
diff --git a/src/projecteuler/problem0014.test.ts b/src/projecteuler/problem0014.test.ts
index 52115571..6b699775 100644
--- a/src/projecteuler/problem0014.test.ts
+++ b/src/projecteuler/problem0014.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0014 } from './problem0014';
diff --git a/src/projecteuler/problem0015.test.ts b/src/projecteuler/problem0015.test.ts
index a8c648fa..19d02f18 100644
--- a/src/projecteuler/problem0015.test.ts
+++ b/src/projecteuler/problem0015.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0015 } from './problem0015';
diff --git a/src/projecteuler/problem0016.test.ts b/src/projecteuler/problem0016.test.ts
index c5831f8d..ced13fd2 100644
--- a/src/projecteuler/problem0016.test.ts
+++ b/src/projecteuler/problem0016.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0016 } from './problem0016';
diff --git a/src/projecteuler/problem0017.test.ts b/src/projecteuler/problem0017.test.ts
index 222cbf5a..d32f4a6a 100644
--- a/src/projecteuler/problem0017.test.ts
+++ b/src/projecteuler/problem0017.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0017 } from './problem0017';
diff --git a/src/projecteuler/problem0018.test.ts b/src/projecteuler/problem0018.test.ts
index 451be3c8..cf016aed 100644
--- a/src/projecteuler/problem0018.test.ts
+++ b/src/projecteuler/problem0018.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0018 } from './problem0018';
diff --git a/src/projecteuler/problem0019.test.ts b/src/projecteuler/problem0019.test.ts
index 97565c84..ff8b3501 100644
--- a/src/projecteuler/problem0019.test.ts
+++ b/src/projecteuler/problem0019.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { __SUNDAY__ } from '../constants';
diff --git a/src/projecteuler/problem0020.test.ts b/src/projecteuler/problem0020.test.ts
index 25ef8233..b30da844 100644
--- a/src/projecteuler/problem0020.test.ts
+++ b/src/projecteuler/problem0020.test.ts
@@ -1,4 +1,6 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
+
 import { problem0020 } from './problem0020';
 
 describe('problem 0020', () => {
diff --git a/src/projecteuler/problem0021.test.ts b/src/projecteuler/problem0021.test.ts
index d7ab5afd..4a13046f 100644
--- a/src/projecteuler/problem0021.test.ts
+++ b/src/projecteuler/problem0021.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0021 } from './problem0021';
diff --git a/src/projecteuler/problem0022.test.ts b/src/projecteuler/problem0022.test.ts
index 8f348737..52a099d7 100644
--- a/src/projecteuler/problem0022.test.ts
+++ b/src/projecteuler/problem0022.test.ts
@@ -4,6 +4,7 @@
 //    - src/data/p022_names.json
 // ////////////////////////////////////////////////////////////////////////////
 
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0022 } from './problem0022';
diff --git a/src/projecteuler/problem0023.test.ts b/src/projecteuler/problem0023.test.ts
index 56bbd9e8..152b88db 100644
--- a/src/projecteuler/problem0023.test.ts
+++ b/src/projecteuler/problem0023.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0023 } from './problem0023';
diff --git a/src/projecteuler/problem0024.test.ts b/src/projecteuler/problem0024.test.ts
index e950cd9d..97ca004a 100644
--- a/src/projecteuler/problem0024.test.ts
+++ b/src/projecteuler/problem0024.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0024 } from './problem0024';
diff --git a/src/projecteuler/problem0025.test.ts b/src/projecteuler/problem0025.test.ts
index 49e3b0e3..05726911 100644
--- a/src/projecteuler/problem0025.test.ts
+++ b/src/projecteuler/problem0025.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../logger';
 
 import { problem0025 } from './problem0025';