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: / var / canvas / node_modules / concurrently / src /
Filename : concurrently.spec.js
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const EventEmitter = require('events');
const { Subject } = require('rxjs');

const createFakeCommand = require('./flow-control/fixtures/fake-command');
const concurrently = require('./concurrently');

let spawn, kill, controllers;
beforeEach(() => {
    const process = new EventEmitter();
    process.pid = 1;

    spawn = jest.fn(() => process);
    kill = jest.fn();
    controllers = [{ handle: jest.fn(arg => arg) }, { handle: jest.fn(arg => arg) }];
});

const create = (commands, options = {}) => concurrently(
    commands,
    Object.assign(options, { controllers, spawn, kill })
);

it('fails if commands is not an array', () => {
    const bomb = () => create('foo');
    expect(bomb).toThrowError();
});

it('fails if no commands were provided', () => {
    const bomb = () => create([]);
    expect(bomb).toThrowError();
});

it('spawns all commands', () => {
    create(['echo', 'kill']);
    expect(spawn).toHaveBeenCalledTimes(2);
    expect(spawn).toHaveBeenCalledWith('echo', expect.objectContaining({}));
    expect(spawn).toHaveBeenCalledWith('kill', expect.objectContaining({}));
});

it('runs controllers with the commands', () => {
    create(['echo', '"echo wrapped"']);

    controllers.forEach(controller => {
        expect(controller.handle).toHaveBeenCalledWith([
            expect.objectContaining({ command: 'echo', index: 0 }),
            expect.objectContaining({ command: 'echo wrapped', index: 1 }),
        ]);
    });
});

it('runs commands with a name or prefix color', () => {
    create([
        { command: 'echo', prefixColor: 'red', name: 'foo' },
        'kill'
    ]);

    controllers.forEach(controller => {
        expect(controller.handle).toHaveBeenCalledWith([
            expect.objectContaining({ command: 'echo', index: 0, name: 'foo', prefixColor: 'red' }),
            expect.objectContaining({ command: 'kill', index: 1, name: '', prefixColor: '' }),
        ]);
    });
});

it('passes commands wrapped from a controller to the next one', () => {
    const fakeCommand = createFakeCommand('banana', 'banana');
    controllers[0].handle.mockReturnValue([fakeCommand]);

    create(['echo']);

    expect(controllers[0].handle).toHaveBeenCalledWith([
        expect.objectContaining({ command: 'echo', index: 0 })
    ]);

    expect(controllers[1].handle).toHaveBeenCalledWith([fakeCommand]);

    expect(fakeCommand.start).toHaveBeenCalledTimes(1);
});