test(2020-day-11): stub in tests for visibility search logic

2020/day-11/seating.js

@@ -9,6 +9,10 @@ const format = (seatMap) => {
  return seatMap.map((row) => row.join('')).join('\n')
 }
 
+const occupiedLineOfSite = ({ x, y, seatMap }) => {
+
+}
+
 const occupiedNearby = ({ x, y, seatMap }) => {
  let temp = ''
 
@@ -68,5 +72,6 @@ const update = ({ x, y, seatMap }) => {
 module.exports = {
  format,
  parse,
- advance
+ advance,
+ occupiedLineOfSite
 }

2020/day-11/seating.test.js

@@ -1,6 +1,6 @@
 /* eslint-env mocha */
 const { expect } = require('chai')
-const { format, parse, advance } = require('./seating')
+const { format, parse, advance, occupiedLineOfSite } = require('./seating')
 
 const testData = [
 `L.LL.LL.LL
@@ -75,6 +75,68 @@ L.#.L..#..
 #.#L#L#.##`
 )
 
+const testDataPart2 = testData.slice(0, 2)
+testDataPart2.push(
+`#.LL.LL.L#
+#LLLLLL.LL
+L.L.L..L..
+LLLL.LL.LL
+L.LL.LL.LL
+L.LLLLL.LL
+..L.L.....
+LLLLLLLLL#
+#.LLLLLL.L
+#.LLLLL.L#`
+)
+testDataPart2.push(
+`#.L#.##.L#
+#L#####.LL
+L.#.#..#..
+##L#.##.##
+#.##.#L.##
+#.#####.#L
+..#.#.....
+LLL####LL#
+#.L#####.L
+#.L####.L#`
+)
+testDataPart2.push(
+`#.L#.L#.L#
+#LLLLLL.LL
+L.L.L..#..
+##LL.LL.L#
+L.LL.LL.L#
+#.LLLLL.LL
+..L.L.....
+LLLLLLLLL#
+#.LLLLL#.L
+#.L#LL#.L#`
+)
+testDataPart2.push(
+`#.L#.L#.L#
+#LLLLLL.LL
+L.L.L..#..
+##L#.#L.L#
+L.L#.#L.L#
+#.L####.LL
+..#.#.....
+LLL###LLL#
+#.LLLLL#.L
+#.L#LL#.L#`
+)
+testDataPart2.push(
+`#.L#.L#.L#
+#LLLLLL.LL
+L.L.L..#..
+##L#.#L.L#
+L.L#.LL.L#
+#.LLLL#.LL
+..#.L.....
+LLL###LLL#
+#.LLLLL#.L
+#.L#LL#.L#`
+)
+
 describe('--- Day 11: Seating System ---', () => {
  describe('Part 1', () => {
  describe('advance()', () => {
@@ -96,4 +158,57 @@ describe('--- Day 11: Seating System ---', () => {
  })
  })
  })
+ describe('Part 2', () => {
+ describe('occupiedLineOfSite()', () => {
+ it('counts the occupied seats visible in each direction', () => {
+ const data =
+`.......#.
+...#.....
+.#.......
+.........
+..#L....#
+....#....
+.........
+#........
+...#.....`
+ expect(occupiedLineOfSite({ x: 1, y: 1, seatMap: data })).to.equal(8)
+ })
+ it('cannot see occupied seats past an available seat', () => {
+ const data =
+`.............
+.L.L.#.#.#.#.
+.............`
+ expect(occupiedLineOfSite({ x: 3, y: 4, seatMap: data })).to.equal(0)
+ })
+ it('can look in all compass directions', () => {
+ const data =
+`.##.##.
+#.#.#.#
+##...##
+...L...
+##...##
+#.#.#.#
+.##.##.`
+ expect(occupiedLineOfSite({ x: 3, y: 3, seatMap: data })).to.equal(0)
+ })
+ })
+ describe('advance()', () => {
+ it('accepts visibility rules instead of proximity', () => {
+ const results = testDataPart2.map((data) => {
+ return format(
+ advance(
+ parse(data), 'visible'
+ )
+ )
+ })
+
+ for (let x = 1; x < testDataPart2.length; x++) {
+ console.debug('Step', x)
+ expect(results[x - 1]).to.equal(testDataPart2[x])
+ }
+ const finalOccupancy = (results[results.length - 1].match(/#/g) || []).length
+ expect(finalOccupancy).to.equal(26)
+ })
+ })
+ })
 })