e10sify-tests.js

e10sify.js

/**
 * Creates wrappers for all xpcshell test files in a `./unit` directory
 * for e10s tests, and copies over the xpcshell test with modified test names.
 *
 * Does NOT copy over head or support files, those need to be done manually.
 */
var fs = require("fs");
var path = require("path");
var unitDir = path.join(__dirname, "unit");
var unitIPCDir = path.join(__dirname, "unit_ipc");

// Make `unit_ipc` directory if DNE
try { fs.mkdirSync(unitIPCDir); } catch (e) {}

// Create wrapper files for each `test_*.js` file in `unit_ipc`
var testFiles = fs.readdirSync(unitDir).filter(isTest);
testFiles.forEach(makeWrapper);

// Copy over the xpcshell.ini and modify it with wrapped files
fs.createReadStream(path.join(unitDir, "xpcshell.ini"))
  .pipe(fs.createWriteStream(path.join(unitIPCDir, "xpcshell.ini")))
  .on("close", function () {
    var ini = fs.readFileSync(path.join(unitIPCDir, "xpcshell.ini")) + "";
    var modified = ini.split("\n").map(function (line) {
      if (/^\[test_.*\.js\]$/.test(line)) {
        return makeWrapFilenameManifest(line);
      }
      return line;
    }).join("\n");
    fs.writeFileSync(path.join(unitIPCDir, "xpcshell.ini"), modified);
  });

/**
 * Utility functions
 */

function makeWrapper (filename) {
  fs.writeFileSync(path.join(unitIPCDir, makeWrapFilename(filename)), wrapBuffer(filename));
}

function wrapBuffer (filename) {
  return "function run_test() {\n" +
         "  run_test_in_child(\"../unit/" + filename + "\");\n" +
         "}";
}

function isTest (file) {
  return /^test_.*\.js$/.test(file);
}

function makeWrapFilename (filename) {
  return filename.replace(/\.js$/, "_wrap.js");
}

function makeWrapFilenameManifest (filename) {
  return filename.replace(/\.js\]$/, "_wrap.js]");
}