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luhn-generator

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A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

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'use strict'; /** * @module Dot */ /** * Module dependencies. */ var Base = require('./base'); var inherits = require('../utils').inherits; var constants = require('../runner').constants; var EVENT_TEST_PASS = constants.EVENT_TEST_PASS; var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL; var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN; var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING; var EVENT_RUN_END = constants.EVENT_RUN_END; /** * Expose `Dot`. */ exports = module.exports = Dot; /** * Constructs a new `Dot` reporter instance. * * @public * @class * @memberof Mocha.reporters * @extends Mocha.reporters.Base * @param {Runner} runner - Instance triggers reporter actions. * @param {Object} [options] - runner options */ function Dot(runner, options) { Base.call(this, runner, options); var self = this; var width = (Base.window.width * 0.75) | 0; var n = -1; runner.on(EVENT_RUN_BEGIN, function() { process.stdout.write('\n'); }); runner.on(EVENT_TEST_PENDING, function() { if (++n % width === 0) { process.stdout.write('\n '); } process.stdout.write(Base.color('pending', Base.symbols.comma)); }); runner.on(EVENT_TEST_PASS, function(test) { if (++n % width === 0) { process.stdout.write('\n '); } if (test.speed === 'slow') { process.stdout.write(Base.color('bright yellow', Base.symbols.dot)); } else { process.stdout.write(Base.color(test.speed, Base.symbols.dot)); } }); runner.on(EVENT_TEST_FAIL, function() { if (++n % width === 0) { process.stdout.write('\n '); } process.stdout.write(Base.color('fail', Base.symbols.bang)); }); runner.once(EVENT_RUN_END, function() { process.stdout.write('\n'); self.epilogue(); }); } /** * Inherit from `Base.prototype`. */ inherits(Dot, Base); Dot.description = 'dot matrix representation';