The code tests a given code string by selecting specific HTML nodes and logging their properties to the console. The code uses several functions from the importer, which is imported from the ../Core module, to perform the necessary operations.

Cell 20

var assert = require('assert');
var importer = require('../Core');
var {selectAst, makeXpaths, htmlToTree} = importer.import("select tree",
"make xpaths",
"html to tree")

var code = `
var importer = require('../Core');
function name(params) {
    return importer.interpret('this is a describe request');
}
console.log()
`

function testCodeToDom(code) {
    // make a path with the interpret symbol
    var node1 = selectAst(`//*[@name="interpret"]`, code)
    console.log(node1)
    var parent = selectAst(`parent::*`, node1);
    assert(parent.nodeName !== '', 'parent selector works');
    console.log(selectAst(`*`, node1).children.length);
    console.log(htmlToTree(parent));
}

if(typeof $ !== 'undefined') {
    testCodeToDom(code);
}

const assert = require('assert');
const { importModules } = require('../Core');

const { selectAst, makeXpaths, htmlToTree } = importModules([
 'select tree',
 'make xpaths',
  'html to tree'
]);

/**
 * Test code-to-dom functionality with the given code.
 *
 * @param {string} code - The code to test.
 */
function testCodeToDom(code) {
  // Make a path with the interpret symbol
  const interpretNode = selectAst(`//*[@name="interpret"]`, code);
  console.log(interpretNode);

  // Get the parent node of the interpret node
  const parentNode = selectAst(`parent::*`, interpretNode);
  assert(parentNode.nodeName!== '', 'Parent selector works');

  // Log the number of children of the interpret node
  console.log(selectAst(`*`, interpretNode).children.length);

  // Log the HTML tree of the parent node
  console.log(htmlToTree(parentNode));
}

/**
 * Entry point of the script.
 */
function main() {
  const code = `
    var importer = require('../Core');
    function name(params) {
      return importer.interpret('this is a describe request');
    }
    console.log()
  `;

  // Only run the test if $ is defined, e.g., in a browser environment
  if (typeof $!== 'undefined') {
    testCodeToDom(code);
  }
}

main();

Code Breakdown

Dependencies and Imports

• The code requires two modules:
  • assert from the built-in Node.js module.
  • An importer from a local module ../Core.
• The importer is used to import three functions:
  • selectAst
  • makeXpaths
  • htmlToTree

Code to Test

• A code string code is defined, which requires the ../Core module and defines a function name that uses the interpret function from the importer.

testCodeToDom Function

• This function takes a code string as input and performs the following steps:
  1. Selects an HTML node with a name attribute set to "interpret" using the selectAst function.
  2. Logs the selected node to the console.
  3. Selects the parent node of the selected node using the selectAst function with a CSS selector parent::*.
  4. Asserts that the parent node's node name is not an empty string using the assert module.
  5. Logs the length of the selected node's children using the selectAst function with a CSS selector *.
  6. Logs the HTML representation of the parent node as a tree using the htmlToTree function.

Main Logic

• The code checks if the $ symbol is defined. If it is, it calls the testCodeToDom function with the code string as input.