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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 Context */ /** * Expose `Context`. */ module.exports = Context; /** * Initialize a new `Context`. * * @private */ function Context() {} /** * Set or get the context `Runnable` to `runnable`. * * @private * @param {Runnable} runnable * @return {Context} context */ Context.prototype.runnable = function(runnable) { if (!arguments.length) { return this._runnable; } this.test = this._runnable = runnable; return this; }; /** * Set or get test timeout `ms`. * * @private * @param {number} ms * @return {Context} self */ Context.prototype.timeout = function(ms) { if (!arguments.length) { return this.runnable().timeout(); } this.runnable().timeout(ms); return this; }; /** * Set test timeout `enabled`. * * @private * @param {boolean} enabled * @return {Context} self */ Context.prototype.enableTimeouts = function(enabled) { if (!arguments.length) { return this.runnable().enableTimeouts(); } this.runnable().enableTimeouts(enabled); return this; }; /** * Set or get test slowness threshold `ms`. * * @private * @param {number} ms * @return {Context} self */ Context.prototype.slow = function(ms) { if (!arguments.length) { return this.runnable().slow(); } this.runnable().slow(ms); return this; }; /** * Mark a test as skipped. * * @private * @throws Pending */ Context.prototype.skip = function() { this.runnable().skip(); }; /** * Set or get a number of allowed retries on failed tests * * @private * @param {number} n * @return {Context} self */ Context.prototype.retries = function(n) { if (!arguments.length) { return this.runnable().retries(); } this.runnable().retries(n); return this; };