japa

import test, { Runner } from 'japa' import { assert } from '@japa/assert' // Japa typically uses plugins for assertions // Configure Japa to discover test files and use the assertion plugin test.configure({ files: ['**/*.spec.ts'], // Adjust glob pattern to your test file naming plugins: [assert()] }) // A simple function to be tested function add(a: number, b: number): number { return a + b } // Basic test demonstrating the main `test` function test('should correctly add two positive numbers', ({ assert }) => { assert.equal(add(2, 3), 5) assert.notEqual(add(1, 1), 3) }) // Test group with lifecycle hooks test.group('Complex Operations', (group) => { let result: number // State for the group group.beforeEach(() => { // Executed before each test in this group result = 0 console.log(' [Group Hook] Resetting result to 0') }) group.afterEach(() => { // Executed after each test in this group console.log(` [Group Hook] Current result after test: ${result}`) }) test('should initialize result to 0', ({ assert }) => { assert.equal(result, 0) }) test('should allow adding values incrementally', ({ assert }) => { result = add(result, 10) assert.equal(result, 10) result = add(result, 5) assert.equal(result, 15) }) }).timeout(5000) // Example of a group-level timeout in milliseconds // Manually run the tests. This is optional if using a global runner setup. const runner = new Runner() runner.run() .then(() => console.log('Tests completed.')) .catch((error) => console.error('Tests failed:', error))