test(di): add a test to di checking that child bindings are not used when resolving the dependencies of a parent binding

Author: vsavkin

modules/angular2/test/di/injector_spec.js

@@ -262,6 +262,18 @@ export function main() {
  expect(engineFromChild).toBe(engineFromParent);
  });
 
+ it("should not use the child bindings when resolving the dependencies of a parent binding", function () {
+ var parent = new Injector([
+ Car, Engine
+ ]);
+ var child = parent.createChild([
+ bind(Engine).toClass(TurboEngine)
+ ]);
+
+ var carFromChild = child.get(Car);
+ expect(carFromChild.engine).toBeAnInstanceOf(Engine);
+ });
+
  it('should create new instance in a child injector', function () {
  var parent = new Injector([Engine]);
  var child = parent.createChild([