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

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+'use strict';
+
+(function() {
+  var lastInstance;
+  // To avoid race conditions between defining the XHR and sending the data
+  var storedResponse;
+
+  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;
+    lastInstance = null;
+    storedResponse = undefined;
+  }
+
+  function mxhr_send() {
+    if (throwAtNextSend) {
+      throwAtNextSend = false;
+      throw objectToThrow;
+    }
+    if (storedResponse) {
+      mxhr_mOnLoad(storedResponse);
+    }
+  }
+
+  function mxhr_open(method, url, opts) {
+    MockXMLHttpRequest.mLastOpenedUrl = url;
+  }
+
+  function mxhr_mSendError() {
+    lastInstance && lastInstance.onerror && lastInstance.onerror();
+  }
+
+  function mxhr_mOnLoad(states) {
+    storedResponse = {};
+    storedResponse.status = 200;
+    for (var keyS in states) {
+        storedResponse[keyS] = states[keyS];
+    }
+    if (lastInstance) {
+      lastInstance.status = 200;
+      for (var keySR in storedResponse) {
+        lastInstance[keySR] = storedResponse[keySR];
+      }
+      lastInstance.onload && lastInstance.onload();
+      storedResponse = undefined;
+    }
+  }
+
+  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();
+    }
+  }
+
+  MockXMLHttpRequest.prototype = {
+    open: mxhr_open,
+    send: mxhr_send,
+    DONE: XMLHttpRequest.prototype.DONE,
+    overrideMimeType: function() {}
+  };
+
+  MockXMLHttpRequest.mThrowAtNextSend = mxhr_mThrowAtNextSend;
+  MockXMLHttpRequest.mTeardown = mxhr_mTeardown;
+  MockXMLHttpRequest.mSendError = mxhr_mSendError;
+  MockXMLHttpRequest.mSendOnLoad = mxhr_mOnLoad;
+  MockXMLHttpRequest.mSendReadyState = mxhr_mSendReadyState;
+  MockXMLHttpRequest.DONE = XMLHttpRequest.DONE;
+
+
+  window.MockXMLHttpRequest = MockXMLHttpRequest;
+})();