fix($injector): allow a constructor function to return a function

This change makes `$injector.instantiate` (and thus `$provide.service`) to behave the same as native
`new` operator.

1 files changed, 10 insertions, 0 deletions

diff --git a/test/auto/injectorSpec.js b/test/auto/injectorSpec.js
index 5c186cf1..aea2dee7 100644
--- a/test/auto/injectorSpec.js
+++ b/test/auto/injectorSpec.js
@@ -788,6 +788,16 @@ describe('injector', function() {
     });
 
 
+    it('should allow constructor to return a function', function() {
+      var fn = function() {};
+      var Class = function() {
+        return fn;
+      };
+
+      expect($injector.instantiate(Class)).toBe(fn);
+    });
+
+
     it('should handle constructor exception', function() {
       expect(function() {
         $injector.instantiate(function() { throw 'MyError'; });