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Edit File: Assert.js

let assert = require('assert');
let Dependencies = require('./Dependencies');
let argv = require('yargs').argv;

class Assert {
    /**
     * Assert that the call the mix.js() is valid.
     *
     * @param {*} entry
     * @param {*} output
     */
    static js(entry, output) {
        assert(
            typeof entry === 'string' || Array.isArray(entry),
            'mix.js() is missing required parameter 1: entry'
        );

assert(
            typeof output === 'string',
            'mix.js() is missing required parameter 2: output'
        );
    }

/**
     * Assert that the calls to mix.sass() and mix.less() are valid.
     *
     * @param {string} type
     * @param {string} src
     * @param {string} output
     */
    static preprocessor(type, src, output) {
        assert(
            typeof src === 'string',
            `mix.${type}() is missing required parameter 1: src`
        );

assert(
            typeof output === 'string',
            `mix.${type}() is missing required parameter 2: output`
        );
    }

/**
     * Assert that calls to mix.combine() are valid.
     *
     * @param {string} src
     * @param {File}   output
     */
    static combine(src, output) {
        assert(
            output.isFile(),
            'mix.combine() requires a full output file path as the second argument.'
        );
    }

/**
     * Assert that the given file exists.
     *
     * @param {string} file
     */
    static exists(file) {
        assert(
            File.exists(file),
            `Whoops, you are trying to compile ${file}, but that file does not exist.`
        );
    }

/**
     * Assert that the necessary dependencies are available.
     *
     * @param {Array}  list
     * @param {Boolean} abortOnComplete
     */
    static dependencies(dependencies, abortOnComplete = false) {
        if (argv['$0'].includes('ava')) return;

new Dependencies(dependencies).install(abortOnComplete);
    }
}

module.exports = Assert;

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