Move test_controller.js inside unitest/lib so it can be used in external tests

pkg/unittest/test_controller.js

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/**
- * Test controller logic - used by unit test harness to embed tests in
- * DumpRenderTree.
- */
-
-// Clear the console before every test run - this is Firebug specific code.
-if (typeof console == "object" && typeof console.clear == "function") {
-  console.clear();
-}
-// Set window onerror to make sure that we catch test harness errors across all
-// browsers.
-window.onerror = function (message, url, lineNumber) {
-  if (url) {
-    showErrorAndExit(
-        "\n\n" + url + ":" + lineNumber + ":\n" + message + "\n\n");
-  } else {
-    showErrorAndExit(message);
-  }
-  window.postMessage('unittest-suite-external-error', '*');
-};
-
-if (navigator.webkitStartDart) {
-  navigator.webkitStartDart();
-}
-
-// testRunner is provided by DRT or WebKit's layout tests.
-// It is not available in selenium tests.
-var testRunner = window.testRunner || window.layoutTestController;
-
-var waitForDone = false;
-
-function processMessage(msg) {
-  if (typeof msg != 'string') return;
-  if (msg == 'unittest-suite-done') {
-    if (testRunner) testRunner.notifyDone();
-  } else if (msg == 'unittest-suite-wait-for-done') {
-    waitForDone = true;
-    if (testRunner) testRunner.startedDartTest = true;
-  } else if (msg == 'dart-calling-main') {
-    if (testRunner) testRunner.startedDartTest = true;
-  } else if (msg == 'dart-main-done') {
-    if (!waitForDone) {
-      window.postMessage('unittest-suite-success', '*');
-    }
-  } else if (msg == 'unittest-suite-success') {
-    dartPrint('PASS');
-    if (testRunner) testRunner.notifyDone();
-  } else if (msg == 'unittest-suite-fail') {
-    showErrorAndExit('Some tests failed.');
-  }
-}
-
-function onReceive(e) {
-  processMessage(e.data);
-}
-
-if (testRunner) {
-  testRunner.dumpAsText();
-  testRunner.waitUntilDone();
-}
-window.addEventListener("message", onReceive, false);
-
-function showErrorAndExit(message) {
-  if (message) {
-    dartPrint('Error: ' + String(message));
-  }
-  // dart/tools/testing/run_selenium.py is looking for either PASS or
-  // FAIL and will continue polling until one of these words show up.
-  dartPrint('FAIL');
-  if (testRunner) testRunner.notifyDone();
-}
-
-function onLoad(e) {
-  // needed for dartium compilation errors.
-  if (window.compilationError) {
-    showErrorAndExit(window.compilationError);
-  }
-}
-
-window.addEventListener("DOMContentLoaded", onLoad, false);
-
-// Note: before renaming this function, note that it is also included in an
-// inlined error handler in the HTML files that wrap DRT tests.
-// See: tools/testing/dart/browser_test.dart
-function externalError(e) {
-  // needed for dartium compilation errors.
-  showErrorAndExit(e && e.message);
-  window.postMessage('unittest-suite-external-error', '*');
-}
-
-// If nobody intercepts the error, finish the test.
-window.addEventListener("error", externalError, false);
-
-document.addEventListener('readystatechange', function () {
-  if (document.readyState != "loaded") return;
-  // If 'startedDartTest' is not set, that means that the test did not have
-  // a chance to load. This will happen when a load error occurs in the VM.
-  // Give the machine time to start up.
-  setTimeout(function() {
-    // A window.postMessage might have been enqueued after this timeout.
-    // Just sleep another time to give the browser the time to process the
-    // posted message.
-    setTimeout(function() {
-      if (testRunner && !testRunner.startedDartTest) {
-        testRunner.notifyDone();
-      }
-    }, 0);
-  }, 50);
-});
-
-// dart2js will generate code to call this function to handle the Dart
-// [print] method. The base [Configuration] (config.html) calls
-// [print] with the secret messages "unittest-suite-success" and
-// "unittest-suite-wait-for-done". These messages are then posted so
-// processMessage above will see them.
-function dartPrint(msg) {
-  if ((msg === 'unittest-suite-success')
-      || (msg === 'unittest-suite-wait-for-done')) {
-    window.postMessage(msg, '*');
-    return;
-  }
-  var pre = document.createElement("pre");
-  pre.appendChild(document.createTextNode(String(msg)));
-  document.body.appendChild(pre);
-}
-
-// dart2js will generate code to call this function instead of calling
-// Dart [main] directly. The argument is a closure that invokes main.
-function dartMainRunner(main) {
-  window.postMessage('dart-calling-main', '*');
-  try {
-    main();
-  } catch (e) {
-    window.postMessage('unittest-suite-fail', '*');
-    return;
-  }
-  window.postMessage('dart-main-done', '*');
-}