Instantiate interceptor only once

Author: xemle

lib/httpMock.js

@@ -15,15 +15,13 @@ function mockTemplate() {
 
         $provide.decorator('$http', ['$delegate', '$q', '$injector', function($http, $q, $injector) {
 
-        var interceptors = $httpProvider.interceptors;
+        var interceptors = [];
 
-        function getInterceptor(interceptorExpression) {
-            if (angular.isString(interceptorExpression)) {
-                return $injector.get(interceptorExpression);
-            } else {
-                return $injector.invoke(interceptorExpression);
-            }
-        }
+        angular.forEach($httpProvider.interceptors, function(interceptorExpression) {
+            var interceptor = angular.isString(interceptorExpression) ?
+                $injector.get(interceptorExpression) : $injector.invoke(interceptorExpression);
+            interceptors.push(interceptor);
+        });
 
         function transformData(data, headers, status, fns) {
             if (typeof fns === 'function') {
@@ -50,7 +48,7 @@ function mockTemplate() {
 
         function getTransformedAndInterceptedRequestConfig(requestConfig) {
             for (var i = 0; i < interceptors.length; i++) {
-                var interceptor = getInterceptor(interceptors[i]);
+                var interceptor = interceptors[i];
 
                 if (interceptor.request) {
                     $q.when(interceptor.request(requestConfig)).then(function(interceptedRequestConfig){
@@ -84,7 +82,7 @@ function mockTemplate() {
 
             // Response interceptors are invoked in reverse order as per docs
             for (var i = interceptors.length - 1; i >= 0; i--) {
-                var interceptor = getInterceptor(interceptors[i]);
+                var interceptor = interceptors[i];
 
                 if (interceptor.response && statusIsSuccessful(response.status)) {
                     $q.when(interceptor.response(response)).then(function(interceptedResponse){