testing/mochitest/browser-test.js

   1 if (Cc === undefined) {
   2   var Cc = Components.classes;
   3   var Ci = Components.interfaces;
   4 }
   5 window.addEventListener("load", testOnLoad, false);
   6
   7 function testOnLoad() {
   8   // Make sure to launch the test harness for the first opened window only
   9   var prefs = Cc["@mozilla.org/preferences-service;1"].
  10               getService(Ci.nsIPrefBranch);
  11   if (prefs.prefHasUserValue("testing.browserTestHarness.running"))
  12     return;
  13
  14   prefs.setBoolPref("testing.browserTestHarness.running", true);
  15
  16   var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
  17            getService(Ci.nsIWindowWatcher);
  18   var sstring = Cc["@mozilla.org/supports-string;1"].
  19                 createInstance(Ci.nsISupportsString);
  20   sstring.data = location.search;
  21   ww.openWindow(window, "chrome://mochikit/content/browser-harness.xul", "browserTest",
  22                 "chrome,centerscreen,dialog,resizable,titlebar,toolbar=no,width=800,height=600", sstring);
  23 }
  24
  25 function Tester(aTests, aCallback) {
  26   this.tests = aTests;
  27   this.callback = aCallback;
  28 }
  29 Tester.prototype = {
  30   checker: null,
  31   currentTestIndex: -1,
  32   get currentTest() {
  33     return this.tests[this.currentTestIndex];
  34   },
  35   get done() {
  36     return this.currentTestIndex == this.tests.length - 1;
  37   },
  38   step: function Tester_step() {
  39     this.currentTestIndex++;
  40   },
  41
  42   start: function Tester_start() {
  43     this.execTest();
  44   },
  45
  46   finish: function Tester_finish() {
  47     // Tests complete, notify the callback and return
  48     this.callback(this.tests);
  49     this.callback = null;
  50     this.tests = null;
  51   },
  52
  53   execTest: function Tester_execTest() {
  54     if (this.done) {
  55       this.finish();
  56       return;
  57     }
  58
  59     // Move to the next test (or first test).
  60     this.step();
  61
  62     // Load the tests into a testscope
  63     this.currentTest.scope = new testScope(this.currentTest.tests);
  64
  65     var scriptLoader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
  66                        getService(Ci.mozIJSSubScriptLoader);
  67     try {
  68       scriptLoader.loadSubScript(this.currentTest.path, this.currentTest.scope);
  69
  70       // Run the test
  71       this.currentTest.scope.test();
  72     } catch (ex) {
  73       this.currentTest.tests.push(new testResult(false, "Exception thrown", ex, false));
  74       this.currentTest.scope.done = true;
  75     }
  76
  77     // If the test ran synchronously, move to the next test,
  78     // otherwise start a poller to monitor it's progress.
  79     if (this.currentTest.scope.done) {
  80       this.execTest();
  81     } else {
  82       var self = this;
  83       this.checker = new resultPoller(this.currentTest, function () { self.execTest(); });
  84       this.checker.start();
  85     }
  86   }
  87 };
  88
  89 function testResult(aCondition, aName, aDiag, aIsTodo) {
  90   aName = aName || "";
  91
  92   this.pass = !!aCondition;
  93   this.todo = aIsTodo;
  94   this.msg = aName;
  95   if (this.pass) {
  96     if (aIsTodo)
  97       this.result = "TEST-KNOWN-FAIL";
  98     else
  99       this.result = "TEST-PASS";
 100   } else {
 101     if (aDiag)
 102       this.msg += " - " + aDiag;
 103     if (aIsTodo)
 104       this.result = "TEST-UNEXPECTED-PASS";
 105     else
 106       this.result = "TEST-UNEXPECTED-FAIL";
 107   }
 108 }
 109
 110 function testScope(aTests) {
 111   var scriptLoader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
 112                      getService(Ci.mozIJSSubScriptLoader);
 113   scriptLoader.loadSubScript("chrome://mochikit/content/tests/SimpleTest/EventUtils.js", this.EventUtils);
 114
 115   this.tests = aTests;
 116
 117   var self = this;
 118   this.ok = function test_ok(condition, name, diag) {
 119     self.tests.push(new testResult(condition, name, diag, false));
 120   };
 121   this.is = function test_is(a, b, name) {
 122     self.ok(a == b, name, "Got " + a + ", expected " + b);
 123   };
 124   this.isnot = function test_isnot(a, b, name) {
 125     self.ok(a != b, name, "Didn't expect " + a + ", but got it");
 126   };
 127   this.todo = function test_todo(condition, name, diag) {
 128     self.tests.push(new testResult(!condition, name, diag, true));
 129   };
 130   this.todo_is = function test_todo_is(a, b, name) {
 131     self.todo(a == b, name, "Got " + a + ", expected " + b);
 132   };
 133   this.todo_isnot = function test_todo_isnot(a, b, name) {
 134     self.todo(a != b, name, "Didn't expect " + a + ", but got it");
 135   };
 136
 137   this.waitForExplicitFinish = function test_WFEF() {
 138     self.done = false;
 139   };
 140   this.finish = function test_finish() {
 141     self.done = true;
 142   };
 143 }
 144 testScope.prototype = {
 145   done: true,
 146
 147   EventUtils: {}
 148 };
 149
 150 // Check whether the test has completed every 3 seconds
 151 const CHECK_INTERVAL = 3000;
 152 // Test timeout (seconds)
 153 const TIMEOUT_SECONDS = 30;
 154
 155 const MAX_LOOP_COUNT = (TIMEOUT_SECONDS * 1000) / CHECK_INTERVAL;
 156
 157 function resultPoller(aTest, aCallback) {
 158   this.test = aTest;
 159   this.callback = aCallback;
 160 }
 161 resultPoller.prototype = {
 162   loopCount: 0,
 163   interval: 0,
 164
 165   start: function resultPoller_start() {
 166     var self = this;
 167     function checkDone() {
 168       self.loopCount++;
 169
 170       if (self.loopCount > MAX_LOOP_COUNT) {
 171         self.test.tests.push(new testResult(false, "Timed out", "", false));
 172         self.test.scope.done = true;
 173       }
 174
 175       if (self.test.scope.done) {
 176         clearInterval(self.interval);
 177
 178         // Notify the callback
 179         self.callback();
 180         self.callback = null;
 181         self.test = null;
 182       }
 183     }
 184     this.interval = setInterval(checkDone, CHECK_INTERVAL);
 185   }
 186 };