   )
 
   try
-    Helpers.assertCalledOnce(collectionFilterByTitleStub)
+    assert.ok(
+      collectionFilterByTitleStub.calledTwice,
+      "Expected filterByTitle to be called once but was called
+        #{collectionFilterByTitleStub.callCount} times"
+    )
 
     assert.lengthOf view.results.models, 1,
       "Expected the collection to be filtered to only the correct indicator"

  view =
    indicators: new Backbone.Collections.IndicatorCollection([])
    results: new Backbone.Collections.IndicatorCollection()
    filterIndicators: Backbone.Views.IndicatorSelectorView::filterIndicators

  event = target: '<input value="hats and boats and cats">'

  view =
    indicators: new Backbone.Collections.IndicatorCollection([])
    results: new Backbone.Collections.IndicatorCollection()
    searchResults: new Backbone.Collections.IndicatorCollection()
    filterIndicators: Backbone.Views.IndicatorSelectorView::filterIndicators

  filterThemeIndicator  = Factory.indicator()
