mathjs/test/deprecated.test.js

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser and offers an integrated solution to work with numbers, big numbers, complex numbers, units, and matrices.

// test error messages for deprecated functions
var assert = require('assert');
var math = require('../index');

describe('deprecated stuff', function() {

  it('should throw a deprecation error when using UpdateNode', function () {

    assert.throws(function () {
      new math.expression.node.UpdateNode();
    }, /UpdateNode is deprecated/);

  })
});