spec/helpers/hierarchy_helper_spec.rb in blacklight-hierarchy-4.2.0 vs spec/helpers/hierarchy_helper_spec.rb in blacklight-hierarchy-4.2.1

@@ -1,12 +1,20 @@
 require 'spec_helper'
 
-describe Blacklight::HierarchyHelper do
+RSpec.describe Blacklight::HierarchyHelper do
   describe '#render_hierarchy' do
     it 'should remove the _suffix from the field name' do
       expect(Deprecation).to receive(:warn)
       field = OpenStruct.new(field: 'the_field_name_facet')
       expect(helper).to receive(:facet_tree).with('the_field_name').and_return({})
       helper.render_hierarchy(field)
     end
+  end
+
+  describe '#facet_toggle_button' do
+    subject { helper.facet_toggle_button(field_name, described_by) }
+    let(:field_name) { 'exploded_tag_ssim' }
+    let(:described_by) { 'unique-string' }
+
+    it { is_expected.to be_html_safe }
   end
 end