91 lines
2.8 KiB
TypeScript
91 lines
2.8 KiB
TypeScript
import { assertArrayIncludes, assertEquals } from "jsr:@std/assert";
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import { makeTopologySortOrder, readFormat } from "./solve_1.ts";
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Deno.test("readFormat", async () => {
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const path = new URL("example.txt", import.meta.url).pathname;
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const actual = await readFormat(path);
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const expected = {
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order: [
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{ left: 47, right: 53 },
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{ left: 97, right: 13 },
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{ left: 97, right: 61 },
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{ left: 97, right: 47 },
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{ left: 75, right: 29 },
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{ left: 61, right: 13 },
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{ left: 75, right: 53 },
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{ left: 29, right: 13 },
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{ left: 97, right: 29 },
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{ left: 53, right: 29 },
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{ left: 61, right: 53 },
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{ left: 97, right: 53 },
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{ left: 61, right: 29 },
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{ left: 47, right: 13 },
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{ left: 75, right: 47 },
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{ left: 97, right: 75 },
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{ left: 47, right: 61 },
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{ left: 75, right: 61 },
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{ left: 47, right: 29 },
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{ left: 75, right: 13 },
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{ left: 53, right: 13 },
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],
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pageNumbers: [
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[75, 47, 61, 53, 29],
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[97, 61, 53, 29, 13],
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[75, 29, 13],
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[75, 97, 47, 61, 53],
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[61, 13, 29],
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[97, 13, 75, 29, 47],
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],
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};
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assertEquals(actual, expected);
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});
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Deno.test("makeTopologySortOrder", () => {
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const orderMap = new Map<number, Set<number>>([
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[1, new Set([2, 3])],
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[2, new Set([4])],
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[3, new Set([4])],
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[4, new Set()],
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]);
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const actual = makeTopologySortOrder(orderMap);
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const expected = [[4, 2, 3, 1], [4, 3, 2, 1]];
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// 4 -> 2 -> 3 -> 1
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// 4 -> 3 -> 2 -> 1
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// multiple valid topological sort order
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assertArrayIncludes(expected, [actual]);
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});
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Deno.test("makeTopologySortOrder with cycle", () => {
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const orderMap = new Map<number, Set<number>>([
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[1, new Set([2])],
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[2, new Set([3])],
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[3, new Set([1])],
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]);
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const actual = makeTopologySortOrder(orderMap);
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const expected = [[3, 2, 1], [2, 1, 3], [1, 3, 2]]; // or any valid topological sort order
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// 3 -> 1 -> 2 -> 3
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// 2 -> 3 -> 1 -> 2
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// 1 -> 2 -> 3 -> 1
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// multiple valid topological sort order
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// The order of the nodes in the cycle is not guaranteed.
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assertArrayIncludes(expected, [actual]);
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});
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Deno.test("makeTopologySortOrder with disconnected graph", () => {
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const orderMap = new Map<number, Set<number>>([
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[1, new Set([2])],
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[3, new Set([4])],
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]);
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const actual = makeTopologySortOrder(orderMap);
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const expected = [
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[2, 1, 4, 3],
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[2, 4, 1, 3],
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[2, 4, 3, 1],
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[4, 2, 1, 3],
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[4, 2, 3, 1],
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[4, 3, 2, 1],
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];
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assertArrayIncludes(expected, [actual]);
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});
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