2024 day 14

2024/day-14/day14.test.ts

@@ -0,0 +1,114 @@
+import { describe, expect, test } from "bun:test"
+import * as path from "node:path"
+import { calculateNextPosition, part1, part2 } from "./day14.ts"
+
+const WIDTH = 101
+const HEIGHT = 103
+
+const TEST_WIDTH = 11
+const TEST_HEIGHT = 7
+
+test("day 14, part 1", async () => {
+	const testInput = await Bun.file(
+		path.resolve(__dirname, "test-input.txt"),
+	).text()
+	const input = await Bun.file(path.resolve(__dirname, "input.txt")).text()
+
+	console.log("\n\n")
+
+	const testResult = part1(testInput, TEST_WIDTH, TEST_HEIGHT)
+	console.log("Test data:", testResult)
+	expect(testResult).toEqual(12)
+
+	const finalResult = part1(input, WIDTH, HEIGHT)
+	console.log("Full data:", finalResult)
+	expect(finalResult).toEqual(215987200)
+
+	console.log("\n\n")
+})
+
+test("day 14, part 2", async () => {
+	const testInput = await Bun.file(
+		path.resolve(__dirname, "test-input.txt"),
+	).text()
+	const input = await Bun.file(path.resolve(__dirname, "input.txt")).text()
+
+	// const testResult = part2(testInput, TEST_WIDTH, TEST_HEIGHT)
+	// // console.log("\n\n")
+	// // console.log("Test data:", testResult)
+	// expect(testResult).toEqual(0)
+
+	const finalResult = part2(input, WIDTH, HEIGHT)
+	console.log("Full data:", finalResult)
+	expect(finalResult).toEqual(8050)
+
+	console.log("\n\n")
+})
+
+describe("calculate next position", () => {
+	test("after 1 second", () => {
+		const start = [2, 4]
+		const velocity = [2, -3] as const
+		const [x, y] = calculateNextPosition(
+			start,
+			velocity,
+			TEST_WIDTH,
+			TEST_HEIGHT,
+		)
+		console.log({ x, y })
+		expect(x).toEqual(4)
+		expect(y).toEqual(1)
+	})
+	test("after 2 seconds", () => {
+		const start = [4, 1]
+		const velocity = [2, -3] as const
+		const [x, y] = calculateNextPosition(
+			start,
+			velocity,
+			TEST_WIDTH,
+			TEST_HEIGHT,
+		)
+		console.log({ x, y })
+		expect(x).toEqual(6)
+		expect(y).toEqual(5)
+	})
+	test("after 3 seconds", () => {
+		const start = [6, 5]
+		const velocity = [2, -3] as const
+		const [x, y] = calculateNextPosition(
+			start,
+			velocity,
+			TEST_WIDTH,
+			TEST_HEIGHT,
+		)
+		console.log({ x, y })
+		expect(x).toEqual(8)
+		expect(y).toEqual(2)
+	})
+	test("after 4 seconds", () => {
+		const start = [8, 2]
+		const velocity = [2, -3] as const
+		const [x, y] = calculateNextPosition(
+			start,
+			velocity,
+			TEST_WIDTH,
+			TEST_HEIGHT,
+		)
+		console.log({ x, y })
+		expect(x).toEqual(10)
+		expect(y).toEqual(6)
+	})
+	test("after 4 seconds", () => {
+		const start = [10, 6]
+		const velocity = [2, -3] as const
+		const [x, y] = calculateNextPosition(
+			start,
+			velocity,
+			TEST_WIDTH,
+			TEST_HEIGHT,
+		)
+		console.log({ x, y })
+		expect(x).toEqual(1)
+		expect(y).toEqual(3)
+	})
+})