peekchain/tests/check.noArgProvided.test.js

Optional chaining safety checker CLI

const { runOptionalChainingCheck } = require('../lib/check.js');

beforeEach(() => {
    jest.spyOn(process, 'exit').mockImplementation((code) => {
        throw new Error(`ProcessExit_${code}`);
    });
    jest.spyOn(console, 'log').mockImplementation(() => { });
    jest.spyOn(console, 'error').mockImplementation(() => { });  // t
})

it('should exit with 0 when no file path is provided', () => {
    process.argv = ['node', 'check.js'];
    expect(() => runOptionalChainingCheck()).toThrow('ProcessExit_0');
});