chore: current WIP day 7b and 8

src/__tests__/day_8_test.ts

@@ -0,0 +1,13 @@
+import { assertEquals } from "@std/assert";
+import {
+  get_three_largest_pairings_mul,
+  read_junction_box_3d_positions,
+} from "../exercises/day_8.ts";
+
+Deno.test("Day 8 - A", async () => {
+  const junction_boxes_coords = await read_junction_box_3d_positions(
+    "src/exercises/assets/day_8_test_input.txt",
+  );
+  const result = get_three_largest_pairings_mul(junction_boxes_coords, 10);
+  assertEquals(result, 40);
+});