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import { assertEquals } from "https://deno.land/std@0.157.0/testing/asserts.ts";import { GridMaster } from "./GridMaster.ts";import findShortestPath from "./index.ts";Deno.test("shortest-path-in-a-hidden-grid", () => {    assertEquals(        [[[1, 2], [-1, 0]], [[0, 0, -1], [1, 1, 1], [2, 0, 0]], [[-1, 0], [            0,            2,        ]]].map((g) => findShortestPath(new GridMaster(g))),        [2, 4, -1],    );});
Deno.test("GridMaster", () => {    const master = new GridMaster([[1, 2], [-1, 0]]);    assertEquals(true, master.canMove("U")); // returns True.    assertEquals(false, master.canMove("D")); // returns False.    assertEquals(false, master.canMove("L")); // returns False.    assertEquals(false, master.canMove("R")); // returns False.    master.move("U"); //moves the robot to the cell (0, 0).    assertEquals(false, master.isTarget()); //returns False.    assertEquals(false, master.canMove("U")); // returns False.    assertEquals(true, master.canMove("D")); //returns True.    assertEquals(false, master.canMove("L")); //returns False.    assertEquals(true, master.canMove("R")); // returns True.    master.move("R"); //moves the robot to the cell (0, 1).    assertEquals(true, master.isTarget()); // returns True.});