Add spec for filtering producers by taxon

spec/features/consumer/producers_spec.rb

@@ -5,22 +5,43 @@ feature %q{
     I want to see a list of producers
     So that I can shop at hubs distributing their products
 }, js: true do
+  include WebHelper
   include UIComponentHelper
-  let!(:producer) { create(:supplier_enterprise) }
-  let!(:invisible_producer) { create(:supplier_enterprise, visible: false) }
-  let(:taxon) { create(:taxon) }
-  let!(:product) { create(:simple_product, supplier: producer, taxons: [taxon]) }
-  let(:shop) { create(:distributor_enterprise) }
-  let!(:er) { create(:enterprise_relationship, parent: shop, child: producer) }
 
-  before do
-    visit producers_path
+  let!(:producer1) { create(:supplier_enterprise) }
+  let!(:producer2) { create(:supplier_enterprise) }
+  let!(:invisible_producer) { create(:supplier_enterprise, visible: false) }
+
+  let(:taxon_fruit) { create(:taxon, name: 'Fruit') }
+  let(:taxon_veg) { create(:taxon, name: 'Vegetables') }
+
+  let!(:product1) { create(:simple_product, supplier: producer1, taxons: [taxon_fruit]) }
+  let!(:product2) { create(:simple_product, supplier: producer2, taxons: [taxon_veg]) }
+
+  let(:shop) { create(:distributor_enterprise) }
+  let!(:er) { create(:enterprise_relationship, parent: shop, child: producer1) }
+
+  before { visit producers_path }
+
+  it "filters by taxon" do
+    toggle_filters
+
+    toggle_filter 'Vegetables'
+
+    page.should_not have_content producer1.name
+    page.should     have_content producer2.name
+
+    toggle_filter 'Vegetables'
+    toggle_filter 'Fruit'
+
+    page.should     have_content producer1.name
+    page.should_not have_content producer2.name
   end
 
   it "shows all producers with expandable details" do
-    page.should have_content producer.name
-    expand_active_table_node producer.name
-    page.should have_content producer.supplied_taxons.first.name.split.map(&:capitalize).join(' ')
+    page.should have_content producer1.name
+    expand_active_table_node producer1.name
+    page.should have_content producer1.supplied_taxons.first.name.split.map(&:capitalize).join(' ')
   end
 
   it "doesn't show invisible producers" do
@@ -28,7 +49,19 @@ feature %q{
   end
 
   it "links to places to buy produce" do
-    expand_active_table_node producer.name
+    expand_active_table_node producer1.name
     page.should have_link shop.name
   end
+
+
+  private
+
+  def toggle_filters
+    find('a.filterbtn').click
+  end
+
+  def toggle_filter(name)
+    page.find('span', text: name).click
+  end
+
 end