public void DoesntModifySearchTextIfSearchTextIsntEmpty()
            {
                //arrange
                var vm = new HostViewModel { SearchText = "Some String" };

                //act
                vm.SearchLostFocus(null);

                //assert
                Assert.Equal("Some String", vm.SearchText);
            }
            public void SetsSearchTextToSearchWhenSearchTextIsEmpty()
            {
                //arrange
                var vm = new HostViewModel { SearchText = string.Empty };

                //act
                vm.SearchLostFocus(null);

                //assert
                Assert.Equal("Search", vm.SearchText);
            }