Use the transport's defer method within the client_action to ensure we use the configured promises everywhere. Allow search requests to be made without any arguments.

test/unit/browser_builds/angular.js

@@ -56,4 +56,17 @@ describe('Angular esFactory', function () {
       };
     });
   });
+  it('returns an error created by calling a method incorrectly', function (done) {
+    directive(function (esFactory) {
+      return function () {
+        var client = esFactory({ hosts: null });
+        client.get().then(function () {
+          expect.fail('promise should have been rejected');
+        }, function (err) {
+          expect(err.message).to.match(/unable/);
+          done();
+        });
+      };
+    });
+  });
 });

test/unit/specs/client_action.js

@@ -20,6 +20,9 @@ function mockClient() {
         } else {
           return when.resolve(params);
         }
+      },
+      defer: function () {
+        return when.defer();
       }
     }
   };