Function createHttpBackendMock

test/angular/1.5/angular-mocks.js:1322–1897

* General factory function for $httpBackend mock. * Returns instance for unit testing (when no arguments specified): * - passing through is disabled * - auto flushing is disabled * * Returns instance for e2e testing (when `$delegate` and `$browser` specified): * - passing through (delega

($rootScope, $timeout, $delegate, $browser)

 * @return {Object} Instance of $httpBackend mock
 */
function createHttpBackendMock($rootScope, $timeout, $delegate, $browser) {
  var definitions = [],
      expectations = [],
      responses = [],
      responsesPush = angular.bind(responses, responses.push),
      copy = angular.copy;

  function createResponse(status, data, headers, statusText) {
    if (angular.isFunction(status)) return status;

    return function() {
      return angular.isNumber(status)
          ? [status, data, headers, statusText]
          : [200, status, data, headers];
    };
  }

  // TODO(vojta): change params to: method, url, data, headers, callback
  function $httpBackend(method, url, data, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {

    var xhr = new MockXhr(),
        expectation = expectations[0],
        wasExpected = false;

    xhr.$$events = eventHandlers;
    xhr.upload.$$events = uploadEventHandlers;

    function prettyPrint(data) {
      return (angular.isString(data) || angular.isFunction(data) || data instanceof RegExp)
          ? data
          : angular.toJson(data);
    }

    function wrapResponse(wrapped) {
      if (!$browser && timeout) {
        if (timeout.then) {
          timeout.then(handleTimeout);
        } else {
          $timeout(handleTimeout, timeout);
        }
      }

      return handleResponse;

      function handleResponse() {
        var response = wrapped.response(method, url, data, headers, wrapped.params(url));
        xhr.$$respHeaders = response[2];
        callback(copy(response[0]), copy(response[1]), xhr.getAllResponseHeaders(),
                 copy(response[3] || ''));
      }

      function handleTimeout() {
        for (var i = 0, ii = responses.length; i < ii; i++) {
          if (responses[i] === handleResponse) {
            responses.splice(i, 1);
            callback(-1, undefined, '');
            break;
          }