    @Test
    public void whenListFiltered_returnSavedList() {

        List<SupplyLocation> locations = new ArrayList<>();
        locations.add(generateSupplyLocations(4, 4, "504"));
        when(service.saveSupplyLocationsZipContains504(inputLocations)).thenReturn(locations);

        assertThat(controller.uploadFitleredLocations(inputLocations)).size().isEqualTo(1);
        assertThat(controller.uploadFitleredLocations(inputLocations).get(0).getZip()).isEqualTo("504");
    }