js/run-tests.js

   1 'use strict';
   2
   3 const process = require('process');
   4 process.chdir( __dirname );
   5
   6 const webpack = require('webpack');
   7 const JSDOM = require("jsdom").JSDOM;
   8 const test = require('tape');
   9 const { Console } = require('console');
  10 var fs = require('fs');
  11 const del = require('del');
  12 const path = require('path');
  13 const glob = require("glob");
  14 const nock = require('nock');
  15 const node_fetch = require('node-fetch');
  16
  17 const { JSAN_to_src_path } = require("./webpack_util/utils.js");
  18
  19 const webpackConfig = require('./test.webpack.config');
  20 const buildPath = webpackConfig.output.path;
  21 const legacyPath = path.resolve(__dirname, "./source/legacy/");
  22
  23 // Default DOM contents within which a test script is excecuted in.
  24 const empty_html = `
  25   <!DOCTYPE html>
  26   <html lang="en">
  27   <head>
  28     <meta charset="utf-8">
  29     <title></title>
  30   </head>
  31   <body></body>
  32   </html>
  33 `;
  34
  35 // If the user provided globs, use them instead of running all tests.
  36 if(process.argv.length>2){
  37   var targets = [].concat(...process.argv.slice(2).map(gt=>glob.sync(gt)))
  38     .map(p=>path.resolve(p));
  39   if(!targets.length) return console.error("No tests specified.");
  40   webpackConfig.entry = targets.reduce((dict,elt)=>{
  41     dict[elt] = elt
  42     return dict;
  43   },{});
  44 }
  45
  46 // First test is always that the scripts build!
  47 test('Webpack Build '+Object.keys(webpackConfig.entry).join(", "), function (t) {
  48   t.plan(1);
  49   // Remove old built tests
  50   del.sync([path.resolve(buildPath)]);
  51   // Run webpack
  52   webpack(webpackConfig).run((err,stats)=>{
  53     if(err) t.fail(err);
  54     else {
  55       var st = JSON.stringify(stats.toJson("minimal"));
  56       if(st.errors) t.fail(st);
  57       t.pass(st);
  58       // Once the scripts build, we can run the rest of the tests.
  59       runTests(JSON.parse(fs.readFileSync(path.resolve(buildPath,'./mapping.json'))));
  60     }
  61   });
  62 });
  63
  64 // Run each test file in a mapping (generated from webpack-filemap-plugin.js)
  65 function runTests(mapping){
  66   // For each test file:
  67   Object.entries(mapping).map(kv=>{
  68     // Make unique list of all JSAN Deps resolved to their paths and chunk files
  69     return [...new Set(kv[1].legacy
  70       .map(jsan=>JSAN_to_src_path(legacyPath,jsan))
  71       .concat(kv[1].files.map(fn=>path.resolve(buildPath,fn))))];
  72   }).forEach(scrptList=>{
  73     // Run a JSDOM Virtual instance with all scripts and deps for each test file
  74     const dom = new JSDOM(empty_html, {
  75       url:"https://cassavabase.org/test.html",
  76       contentType: "text/html",
  77       includeNodeLocations: true,
  78       runScripts: "dangerously"
  79     });
  80     // Reference tape from the JSDOM window, by name defined in test.webpack.config
  81     dom.window[webpackConfig.externals.tape] = test;
  82     // Reference nock from the JSDOM window, by name defined in test.webpack.config
  83     // also clean up current mocked responses from previous tests
  84     dom.window[webpackConfig.externals.nock] = nock;
  85     nock.cleanAll();
  86     nock.disableNetConnect();
  87     // Polyfill JSDOM fetch using node-fetch
  88     dom.window.fetch = node_fetch;
  89     // Ensure console.log/info/debug statements inside virtual DOM print to stderr
  90     // by replacing the default console with one which routes to stderr
  91     // This ensures "pure" tap stdout
  92     dom.window.console = new Console({ stdout: process.stderr, stderr: process.stderr });
  93     // Add script tags to JSDOM, these excute upon insertion (thereby running
  94     // the contained tests).
  95     scrptList.forEach(file=>{
  96       var src = fs.readFileSync(file)+'';
  97       var scrpt = dom.window.document.createElement('script');
  98       scrpt.innerHTML = src;
  99       dom.window.document.head.appendChild(scrpt);
 100     })
 101   });
 102 }