@ende/expect/fn

ende add jsr:@ende/expect

Version 2026.10.15 on JSR.

This module contains a function to mock functions for testing and assertions.

import { fn, expect } from "@ende/expect";

Ende.test("example", () => {
  const mockFn = fn((a: number, b: number) => a + b);
  const result = mockFn(1, 2);
  expect(result).toEqual(3);
  expect(mockFn).toHaveBeenCalledWith(1, 2);
  expect(mockFn).toHaveBeenCalledTimes(1);
});