fullstackopen-notes/parts/4/blogApp/tests/favoritePost.test.js

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2025-06-04 23:59:57 +02:00
const { test, describe } = require("node:test");
const assert = require("node:assert");
const { favoritePost } = require("../src/utils");
describe("favoritePost ", () => {
const posts = [
{
_id: "5a422aa71b54a676234d17f8",
title: "Go To Statement Considered Harmful",
author: "Edsger W. Dijkstra",
url: "https://homepages.cwi.nl/~storm/teaching/reader/Dijkstra68.pdf",
likes: 5,
__v: 0,
},
{
_id: "5a422aa71b54a676234d17f8",
title: "Go To Statement Considered Harmful",
author: "Edsger W. Dijkstra",
url: "https://homepages.cwi.nl/~storm/teaching/reader/Dijkstra68.pdf",
likes: 2,
__v: 0,
},
];
const emptyArray = [];
const gibberish = "asdaSd123asd";
test("finds top properly", () => {
assert.strictEqual(favoritePost(posts), posts[0]);
});
test("works fine with empty array", () => {
assert.strictEqual(favoritePost(emptyArray), null);
});
test("fails with gibberish input", () => {
const failedCall = () => {
favoritePost(gibberish);
};
assert.throws(failedCall, Error);
});
});