'use strict';
/**
* Contains "command" code for "one-and-dones"--options passed
* to Mocha which cause it to just dump some info and exit.
* See {@link module:lib/cli/one-and-dones.ONE_AND_DONE_ARGS ONE_AND_DONE_ARGS} for more info.
* @module
* @private
*/
const Mocha = require('../mocha');
/**
* Dumps a sorted list of the enumerable, lower-case keys of some object
* to `STDOUT`.
* @param {Object} obj - Object, ostensibly having some enumerable keys
* @ignore
* @private
*/
const showKeys = obj => {
console.log();
const keys = Object.keys(obj);
const maxKeyLength = keys.reduce((max, key) => Math.max(max, key.length), 0);
keys
.filter(
key => /^[a-z]/.test(key) && !obj[key].browserOnly && !obj[key].abstract
)
.sort()
.forEach(key => {
const description = obj[key].description;
console.log(
` ${key.padEnd(maxKeyLength + 1)}${
description ? `- ${description}` : ''
}`
);
});
console.log();
};
/**
* Handlers for one-and-done options
* @namespace
* @private
*/
exports.ONE_AND_DONES = {
/**
* Dump list of built-in interfaces
* @private
*/
'list-interfaces': () => {
showKeys(Mocha.interfaces);
},
/**
* Dump list of built-in reporters
* @private
*/
'list-reporters': () => {
showKeys(Mocha.reporters);
}
};
/**
* A Set of all one-and-done options
* @type Set<string>
* @private
*/
exports.ONE_AND_DONE_ARGS = new Set(
['help', 'h', 'version', 'V'].concat(Object.keys(exports.ONE_AND_DONES))
);