const assert = require('assert'), ArgumentsError = require('../../src/error/ArgumentsError') describe('ArgumentsError', function () { it('should construct an ArgumentsError without max', function () { const err = new ArgumentsError('myfunction', 1, 2) assert(err instanceof Error) assert(err instanceof ArgumentsError) assert.equal(err.fn, 'myfunction') assert.equal(err.count, 1) assert.equal(err.min, 2) assert.equal(err.max, undefined) assert.equal(err.toString(), 'ArgumentsError: Wrong number of arguments in function myfunction (1 provided, 2 expected)') }) it('should construct an ArgumentsError with max', function () { const err = new ArgumentsError('myfunction', 1, 2, 3) assert(err instanceof Error) assert(err instanceof ArgumentsError) assert.equal(err.fn, 'myfunction') assert.equal(err.count, 1) assert.equal(err.min, 2) assert.equal(err.max, 3) assert.equal(err.toString(), 'ArgumentsError: Wrong number of arguments in function myfunction (1 provided, 2-3 expected)') }) it('should throw an error when operator new is missing', function () { assert.throws(function () { ArgumentsError() }, SyntaxError) }) })