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gaia/apps/system/test/unit/mock_xmlhttprequest.js

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+'use strict';
+
+(function() {
+  var lastInstance;
+
+  function MockXMLHttpRequest() {
+    lastInstance = this;
+  }
+
+  var throwAtNextSend = false,
+      objectToThrow = null;
+
+  function mxhr_mThrowAtNextSend(e) {
+    throwAtNextSend = true;
+    objectToThrow = e || new Error('throwing an exception');
+  }
+
+  function mxhr_mTeardown() {
+    throwAtNextSend = false;
+    objectToThrow = null;
+    delete MockXMLHttpRequest.mLastOpenedUrl;
+    delete MockXMLHttpRequest.mLastSendData;
+    MockXMLHttpRequest.mHeaders = {};
+    lastInstance = null;
+  }
+
+  function mxhr_send(data) {
+    if (throwAtNextSend) {
+      throwAtNextSend = false;
+      throw objectToThrow;
+    }
+    MockXMLHttpRequest.mLastSendData = data;
+  }
+
+  function mxhr_open(method, url, opts) {
+    MockXMLHttpRequest.mLastOpenedUrl = url;
+  }
+
+  function mxhr_mSendError() {
+    lastInstance && lastInstance.onerror && lastInstance.onerror();
+  }
+
+  function mxhr_mSendTimeout() {
+    lastInstance && lastInstance.ontimeout && lastInstance.ontimeout();
+  }
+
+  function mxhr_mOnLoad(states) {
+    if (lastInstance) {
+      lastInstance.status = 200;
+      for (var key in states) {
+        lastInstance[key] = states[key];
+      }
+      lastInstance.onload && lastInstance.onload();
+    }
+  }
+
+  function mxhr_mSendReadyState(states) {
+    if (lastInstance) {
+      lastInstance.readyState = XMLHttpRequest.DONE;
+      lastInstance.status = 200;
+      for (var key in states) {
+        lastInstance[key] = states[key];
+      }
+      lastInstance.onreadystatechange && lastInstance.onreadystatechange();
+    }
+  }
+
+  function mxhr_mSetRequestHeader(key, val) {
+    MockXMLHttpRequest.mHeaders[key] = val;
+  }
+
+  MockXMLHttpRequest.prototype = {
+    open: mxhr_open,
+    send: mxhr_send,
+    DONE: XMLHttpRequest.prototype.DONE,
+    overrideMimeType: function() {},
+    setRequestHeader: mxhr_mSetRequestHeader
+  };
+
+  MockXMLHttpRequest.mThrowAtNextSend = mxhr_mThrowAtNextSend;
+  MockXMLHttpRequest.mTeardown = mxhr_mTeardown;
+  MockXMLHttpRequest.mSendError = mxhr_mSendError;
+  MockXMLHttpRequest.mSendTimeout = mxhr_mSendTimeout;
+  MockXMLHttpRequest.mSendOnLoad = mxhr_mOnLoad;
+  MockXMLHttpRequest.mSendReadyState = mxhr_mSendReadyState;
+  MockXMLHttpRequest.DONE = XMLHttpRequest.DONE;
+
+
+  window.MockXMLHttpRequest = MockXMLHttpRequest;
+})();