Implement GM_xmlhttpRequest

chrome/test/data/extensions/greasemonkey_api_test.js

Index: chrome/test/data/extensions/greasemonkey_api_test.js
===================================================================
--- chrome/test/data/extensions/greasemonkey_api_test.js	(revision 10422)
+++ chrome/test/data/extensions/greasemonkey_api_test.js	(working copy)
@@ -1,6 +1,8 @@
 var localStorage;
 var document;
 var window;
+var XMLHttpRequest;
+var lastCreatedXhr;
 
 function testGetSetValue() {
   localStorage = new LocalStorageFake();
@@ -65,19 +67,100 @@
 }
 
 function testAddStyle() {
+  var documentElement = new ElementFake('');
   var head = new ElementFake('head');
-  document = new DocumentFake(head);
+  document = new DocumentFake(documentElement, head);
   var css = 'color: #decaff;';
   GM_addStyle(css);
+  assert(0, documentElement.childNodes.length);
   assert(1, head.childNodes.length);
   var style = head.childNodes[0];
   assert("style", style.tagName);
   assert("text/css", style.type);
-  assert(css, style.innerHTML);
+  assert(1, style.childNodes.length);
+  var textNode = style.childNodes[0];
+  assert(css, textNode.text);
+
+  document = new DocumentFake(documentElement, null);
+  GM_addStyle(css);
+  assert(1, documentElement.childNodes.length);
+  var style = documentElement.childNodes[0];
+  assert("text/css", style.type);
+  assert(1, style.childNodes.length);
+  textNode = style.childNodes[0];
+  assert(css, textNode.text);
 }
 
 function testXmlhttpRequest() {
-  var xhr = GM_xmlhttpRequest({});
+  XMLHttpRequest = XMLHttpRequestFake;
+  var url = 'http://example.com';
+  
+  var onLoadCallback = function(state) {
+    onLoadCallbackResponseState = state;
+  };
+  var onErrorCallback = function(state) {
+    onErrorCallbackResponseState = state;
+  };
+  var onReadyStateChangeCallback = function(state) {
+    onReadyStateChangeCallbackResponseState = state;
+  };
+
+  var details = {
+    onload: onLoadCallback,
+    onerror: onErrorCallback,
+    onreadystatechange: onReadyStateChangeCallback,
+    method: 'GET',
+    url: url,
+    overrideMimeType: 'text/html',
+    headers: {
+      'X-Header': 'foo'
+    },
+    data: 'data'
+  };
+
+  GM_xmlhttpRequest(details);
+  var xhr = lastCreatedXhr;
+
+  assert('GET', xhr.openedMethod);
+  assert(url, xhr.openedUrl);
+  assert('text/html', xhr.overrideMimeType);
+  assert('foo', xhr.requestHeaders['X-Header']);
+  assert('data', xhr.sentBody);
+
+  xhr.responseText = 'foo';
+  xhr.responseHeaders['X-Response'] = 'foo';
+  xhr.status = 200;
+  xhr.statusText = 'OK';
+
+  xhr.readyState = 1;
+  xhr.onreadystatechange();
+  var state = onReadyStateChangeCallbackResponseState;
+  assert(xhr.responseText, state.responseText);
+  assert(xhr.readyState, state.readyState);
+  assert('', state.responseHeaders);
+  assert(0, state.status);
+  assert('', state.statusText);
+  assert('', state.finalUrl);
+
+  xhr.readyState = 0;
+  xhr.onerror();
+  state = onErrorCallbackResponseState;
+  assert(xhr.responseText, state.responseText);
+  assert(xhr.readyState, state.readyState);
+  assert('', state.responseHeaders);
+  assert(0, state.status);
+  assert('', state.statusText);
+  assert('', state.finalUrl);
+
+  xhr.readyState = 4;
+  xhr.onload();
+  state = onLoadCallbackResponseState;
+  assert(xhr.responseText, state.responseText);
+  assert(xhr.readyState, state.readyState);
+  assert('X-Response: foo\r\n', state.responseHeaders);
+  assert(xhr.status, state.status);
+  assert(xhr.statusText, state.statusText);
+  assert(url, state.finalUrl);
 }
 
 function testRegisterMenuCommand() {
@@ -155,7 +238,8 @@
   }
 }
 
-function DocumentFake(head) {
+function DocumentFake(documentElement, head) {
+  this.documentElement = documentElement;
   this.head_ = head;
 }
 DocumentFake.prototype = {
@@ -167,224 +251,69 @@
   },
   createElement: function(tagName) {
     return new ElementFake(tagName);
+  },
+  createTextNode: function(text) {
+    return new TextNodeFake(text);
   }
 }
 
 function ElementFake(tagName) {
   this.tagName = tagName;
+  this.childNodes = [];
 }
 ElementFake.prototype = {
-  childNodes: [],
   appendChild: function(e) {
     this.childNodes.push(e);
     return e;
-  },
-}
-
-function assert(expected, actual) {
-  if (expected !== actual) {
-    throw new Error('Assert failed: "' + expected + '" !== "' + actual + '"');
   }
 }
 
-function fail() {
-  throw new Error('Fail');
+function TextNodeFake(text) {
+  this.text = text;
 }
 
-function assertThrow(f) {
-  var threw = false;
-  try {
-    f();
-  } catch(e) {
-    threw = true;
-  }
-  if (!threw) {
-    throw new Error('Assert failed, expression did not throw.');
-  }
+function XMLHttpRequestFake() {
+  lastCreatedXhr = this;
+  this.onload = null;
+  this.onerror = null;
+  this.onreadystatechange = null;
+  this.openedMethod = null;
+  this.openededUrl = null;
+  this.overriddenMimeType = null;
+  this.requestHeaders = {};
+  this.sentBody = null;
+  this.responseText = null;
+  this.readyState = null;
+  this.responseHeaders = {};
+  this.status = null;
+  this.statusText = null;
 }
-var localStorage;
-var document;
-var window;
-
-function testGetSetValue() {
-  localStorage = new LocalStorageFake();
-  GM_setValue('string', 'value');
-  assert('value', GM_getValue('string'));
-  GM_setValue('integer', 123);
-  assert(123, GM_getValue('integer'));
-  GM_setValue('boolean', true);
-  assert(true, GM_getValue('boolean'));
-
-  assert(undefined, GM_getValue('notset'));
-  assert('default', GM_getValue('notset', 'default'));
-
-  // illegal values
-  assertThrow(function() {
-    GM_setValue('illegal value', null);
-  });
-  assertThrow(function() {
-    GM_setValue('illegal value', 1.5);
-  });
-}
-
-function testDeleteValue() {
-  localStorage = new LocalStorageFake();
-  GM_setValue('delete', 'value');
-  assert('value', GM_getValue('delete'));
-  GM_deleteValue('delete');
-  assert(undefined, GM_getValue('delete'));
-  GM_deleteValue('notset');
-}
-
-function testListValues() {
-  localStorage = new LocalStorageFake();
-  var a = GM_listValues();
-  assert(0, a.length);
-
-  GM_setValue('one', 'first');
-  a = GM_listValues();
-  assert(1, a.length);
-  assert('one', a[0]);
-
-  GM_setValue('two', 'second');
-  a = GM_listValues();
-
-  // Test that keys that are not namespaced can't be read.
-  localStorage.setItem('three', 'third');
-  assert(2, a.length);
-  assert(true, a.indexOf('one') >= 0);
-  assert(true, a.indexOf('two') >= 0);
-}
-
-function testGetResourceURL() {
-  assertThrow(function() {
-    var resource = GM_getResourceURL('urlResourceName');
-  });
-}
-
-function testGetResourceText() {
-  assertThrow(function() {
-    var resource = GM_getResourceText('textResourceName');
-  });
-}
-
-function testAddStyle() {
-  var head = new ElementFake('head');
-  document = new DocumentFake(head);
-  var css = 'color: #decaff;';
-  GM_addStyle(css);
-  assert(1, head.childNodes.length);
-  var style = head.childNodes[0];
-  assert("style", style.tagName);
-  assert("text/css", style.type);
-  assert(css, style.innerHTML);
-}
-
-function testXmlhttpRequest() {
-  var xhr = GM_xmlhttpRequest({});
-}
-
-function testRegisterMenuCommand() {
-  assertThrow(function() {
-    GM_registerMenuCommand('name', function() {}, 'a', '', 'a');
-  });
-}
-
-function testOpenInTab() {
-  var mockWindow = {
-    open: function(url, name, opt_options) {
-      this.openedUrl = url;
-      this.openedName = name;
-      this.openedOptions = opt_options;
-    }
-  };
-  window = mockWindow;
-  var url = 'http://example.com';
-  GM_openInTab(url);
-  assert(mockWindow.openedUrl, url);
-}
-
-function testLog() {
-  var mockWindow = {
-    console: {
-      message: null,
-      log: function(message) {
-        this.message = message;
-      }
-    }
-  };
-  window = mockWindow;
-  var message = 'hello world';
-  GM_log(message);
-  assert(message, mockWindow.console.message);
-}
-
-function LocalStorageFake() {
-  this.map_ = {};
-  this.keys_ = [];
-}
-LocalStorageFake.prototype = {
-  length: 0,
-  key: function(index) {
-    if (index >= this.length) {
-      throw new Error('INDEX_SIZE_ERR');
-    }
-    return this.keys_[index];
+XMLHttpRequestFake.prototype = {
+  open: function(method, url) {
+    this.openedMethod = method;
+    this.openedUrl = url;
   },
-  getItem: function(key) {
-    if (key in this.map_) {
-      return this.map_[key];
-    }
-    return null;
+  overrideMimeType: function(mimeType) {
+    this.overrideMimeType = mimeType;
   },
-  setItem: function(key, data) {
-    this.map_[key] = data;
-    this.updateKeys_();
+  setRequestHeader: function(header, value) {
+    this.requestHeaders[header] = value;
   },
-  removeItem: function(key) {
-    delete this.map_[key];
-    this.updateKeys_();
+  send: function(opt_body) {
+    this.sentBody = opt_body;
   },
-  clear: function() {
-    this.map_ = {};
-    this.updateKeys_();
-  },
-  updateKeys_: function() {
-    var keys = [];
-    for (var key in this.map_) {
-      keys.push(key);
+  getAllResponseHeaders: function() {
+    var s = '';
+    for (var header in this.responseHeaders) {
+      // The delimiter used in Webkit's XMLHttpRequest is \r\n, however
+      // the new Chrome networking code (and Firefox) uses \n, so watch
+      // out for this!
+      s += header + ': ' + this.responseHeaders[header] + '\r\n';
     }
-    this.keys_ = keys;
-    this.length = keys.length;
+    return s;
   }
 }
 
-function DocumentFake(head) {
-  this.head_ = head;
-}
-DocumentFake.prototype = {
-  getElementsByTagName: function(tagName) {
-    if (tagName == 'head' && this.head_) {
-      return [this.head_];
-    }
-    return [];
-  },
-  createElement: function(tagName) {
-    return new ElementFake(tagName);
-  }
-}
-
-function ElementFake(tagName) {
-  this.tagName = tagName;
-}
-ElementFake.prototype = {
-  childNodes: [],
-  appendChild: function(e) {
-    this.childNodes.push(e);
-    return e;
-  },
-}
-
 function assert(expected, actual) {
   if (expected !== actual) {
     throw new Error('Assert failed: "' + expected + '" !== "' + actual + '"');
@@ -406,3 +335,4 @@
     throw new Error('Assert failed, expression did not throw.');
   }
 }
+