Writing Tests

Basic test file:

import { describe, test, expect } from "as-test";

describe("math", () => {
  test("addition", () => {
    expect(1 + 2).toBe(3);
  });

  test("close to", () => {
    expect(3.14159).toBeCloseTo(3.14, 2);
  });
});

Useful APIs:

describe(name, callback)
test(name, callback)
it(name, callback)
xdescribe, xtest, xit for skipped cases
beforeAll, afterAll, beforeEach, afterEach
expect(value, message?)

Run tests:

bash

ast test
ast test math
ast test ./assembly/__tests__/*.spec.ts

Selectors:

bare names resolve against configured input globs
explicit file paths and globs are supported
comma-separated bare selectors also work, for example ast test math,array,string

Writing Tests ​

Writing Tests