How can I change $ httpBackend when [method] between requests in unit testing?

In my testing, I initiate some model data and mock the answer:

beforeEach(function(){
   var re = new RegExp(/^http\:\/\/.+?\/users-online\/(.+)$/);
   $httpBackend.whenGET(re).respond({id:12345, usersOnline:5000});
});      

it('should find 5000 users in channel 12345', function(){
    expect( UsersOnlineService.data.usersOnline).toEqual( 50000);
});

      

        
        
        
      

    

then say in the next test expression, I want an updated value for the channel. Everyone is gone and hypothetically this will cause different behavior, so I need to mock this second request so that I can test this behavior.

Adding $httpBackend.whenGET

to the next it

status does not override the value beforeEach

. It seems to be using the original mock value:

it('should find 0 users in channel 12345', function(){
    $httpBackend.whenGET(re).respond({id:12345, usersOnline:0});
    expect( UsersOnlineService.data.usersOnline).toEqual( 50000); //fails
});

      

        
        
        
      

    

And if I do it like I did before, they each fail with the usual "unexpected" error.

it('should find 5000 users in channel 12345', function(){
     var re = new RegExp(/^http\:\/\/.+?\/users-online\/(.+)$/);
     $httpBackend.whenGET(re).respond({id:12345, usersOnline:5000});
    expect( UsersOnlineService.data.usersOnline).toEqual( 50000); //fails
});

it('should find 0 users in channel 12345', function(){
      var re = new RegExp(/^http\:\/\/.+?\/users-online\/(.+)$/);
     $httpBackend.whenGET(re).respond({id:12345, usersOnline:0});
    expect( UsersOnlineService.data.usersOnline).toEqual( 0); //fails
});

      

        
        
        
      

    

How to modulate data layout between requests?

I've also tried:

• sandwich a beforeEach
  
  between operatorsit
  
  
• setting a variable .respond(
  
  to a variable fakeResponse
  
  . Then change the value fakeResponse
  
  in each expression it
  
  .