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Testing ​

std:test has describe, test and assert. A failing assertion marks that test as failed, and the other tests still run:

pleno
import { describe, test, assert } from "std:test";

describe("math", fn() {
    test("adds", fn() {
        assert.equal(1 + 1, 2);
    });
});
Run

On your computer, pleno test runs every test file in a folder and fails if any test does, so it works in CI.

Your turn ​

One test fails. Run the code, read the message, and fix slugify so both tests pass.

testing.pln
import { describe, test, assert } from "std:test"; fn slugify(title: String): String {    return title.replace(" ", "-");} describe("slugify", fn() {    test("joins words with dashes", fn() {        assert.equal(slugify("hello world"), "hello-world");    });     test("uses lowercase", fn() {        assert.equal(slugify("Hello World"), "hello-world");    });});