Add test for query params

frontend/app/components/api/api-v3/hal-link/hal-link.service.test.ts

@@ -27,7 +27,7 @@
 //++
 
 describe('HalLink service', () => {
-  var $httpBackend;
+  var $httpBackend:ng.IHttpBackendService;
   var HalLink;
 
   beforeEach(angular.mock.module('openproject.api'));
@@ -117,6 +117,14 @@ describe('HalLink service', () => {
       $httpBackend.flush();
     });
 
+    it('should pass parameters as query params to the request', () => {
+      link.$fetch({
+        hello: 'world'
+      });
+      $httpBackend.expectGET('/api/link?hello=world').respond(200);
+      $httpBackend.flush();
+    });
+
     it('should perform a POST request', () => {
       link.method = 'post';