'use strict';

const chai = require('chai');
chai.Assertion.includeStack = true;
require('chai').should();
const expect = require('chai').expect;

var nodeRequire = require('../node-require');

function testNodeRequireInstall(options, expected) {
    let requireObj = {
        extensions: {}
    };

    options.require = requireObj;

    nodeRequire.install(options);

    for (let i=0; i<expected.length; i++) {
        let ext = expected[i];
        expect(requireObj.extensions[ext]).to.be.a('function');
    }

    expected.sort();

    var actualKeys = Object.keys(requireObj.extensions).sort();
    expect(expected).to.deep.equal(actualKeys);
}

describe('node-require' , function() {

    it('should consolidate using both extension and extensions', function() {
        testNodeRequireInstall({
                extension: '.marko.xml',
                extensions: ['.marko', '.html']
            },
            ['.marko.xml', '.marko', '.html']);
    });

    it('should consolidate using only extensions', function() {
        testNodeRequireInstall({
                extensions: ['.marko', '.html']
            },
            ['.marko', '.html']);
    });

    it('should consolidate using only extension', function() {
        testNodeRequireInstall({
                extension: '.marko.xml'
            },
            ['.marko.xml']);
    });

    it('should consolidate using extension and empty array of extensions', function() {
        testNodeRequireInstall({
                extension: '.marko.xml',
                extensions: []
            },
            ['.marko.xml']);
    });

    it('should consolidate with .marko when neither extension or extensions provided', function() {
        testNodeRequireInstall({
            },
            ['.marko']);
    });

    it('should insert missing period into extensions', function() {
        testNodeRequireInstall({
                extension: 'marko.xml',
                extensions: ['html']
            },
            ['.marko.xml', '.html']);
    });
});