fix(2022-day-02): record correct score when intending to lose against an opponent playing rock

Author: developher-net

2022/day-02/rochambeau.js

@@ -47,9 +47,9 @@ const strategizeRound = (opponent, outcome) => {
     const offset = strategyCodes.indexOf(outcome) - 1
     let target = opponentCodes.indexOf(opponent) + offset
     if (target >= opponentCodes.length) { target = 0 }
+    if (target < 0) { target = opponentCodes.length - 1}
     return opponentCodes[target]
   }
-  console.debug(scoreShape(findPlay(opponent, outcome)), scoreOutcome)
   return scoreShape(findPlay(opponent, outcome)) + scoreOutcome
 }
 

2022/day-02/rochambeau.test.js

@@ -2,7 +2,7 @@
 const { expect } = require('chai')
 const { scoreMatch, scoreRound, strategizeMatch, strategizeRound } = require('./rochambeau')
 
-describe.only('--- Day 2: Rock Paper Scissors ---', () => {
+describe('--- Day 2: Rock Paper Scissors ---', () => {
   describe('Part 1', () => {
     describe('scoreRound', () => {
       it('calculates the score of a round based on what the opponent played and what you played', () => {
@@ -32,6 +32,8 @@ describe.only('--- Day 2: Rock Paper Scissors ---', () => {
         expect(strategizeRound('A', 'Y')).to.equal(4)
         expect(strategizeRound('B', 'X')).to.equal(1)
         expect(strategizeRound('C', 'Z')).to.equal(7)
+        // data from input
+        expect(scoreRound('A', 'X')).to.equal(3) // Opponent played Rock and self should lose
       })
     })
     describe('strategizeMatch', () => {