1 files changed, 66 insertions, 0 deletions
diff --git a/spec/finders/autocomplete/acts_as_taggable_on/tags_finder_spec.rb b/spec/finders/autocomplete/acts_as_taggable_on/tags_finder_spec.rb
new file mode 100644
index 00000000000..79d2f9cdb45
--- /dev/null
+++ b/spec/finders/autocomplete/acts_as_taggable_on/tags_finder_spec.rb
@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Autocomplete::ActsAsTaggableOn::TagsFinder do
+  describe '#execute' do
+    context 'with empty params' do
+      it 'returns all tags' do
+        tag1 = ActsAsTaggableOn::Tag.create!(name: 'tag1')
+        tag2 = ActsAsTaggableOn::Tag.create!(name: 'tag2')
+
+        tags = described_class.new(params: {}).execute
+
+        expect(tags).to match_array [tag1, tag2]
+      end
+    end
+
+    context 'filter by search' do
+      context 'with an empty search term' do
+        it 'returns an empty collection' do
+          ActsAsTaggableOn::Tag.create!(name: 'tag1')
+          ActsAsTaggableOn::Tag.create!(name: 'tag2')
+
+          tags = described_class.new(params: { search: '' }).execute
+
+          expect(tags).to be_empty
+        end
+      end
+
+      context 'with a search containing 2 characters' do
+        it 'returns the tag that strictly matches the search term' do
+          tag1 = ActsAsTaggableOn::Tag.create!(name: 't1')
+          ActsAsTaggableOn::Tag.create!(name: 't11')
+
+          tags = described_class.new(params: { search: 't1' }).execute
+
+          expect(tags).to match_array [tag1]
+        end
+      end
+
+      context 'with a search containing 3 characters' do
+        it 'returns the tag that partially matches the search term' do
+          tag1 = ActsAsTaggableOn::Tag.create!(name: 'tag1')
+          tag2 = ActsAsTaggableOn::Tag.create!(name: 'tag11')
+
+          tags = described_class.new(params: { search: 'ag1' }).execute
+
+          expect(tags).to match_array [tag1, tag2]
+        end
+      end
+    end
+
+    context 'limit' do
+      it 'limits the result set by the limit constant' do
+        stub_const("#{described_class}::LIMIT", 1)
+
+        ActsAsTaggableOn::Tag.create!(name: 'tag1')
+        ActsAsTaggableOn::Tag.create!(name: 'tag2')
+
+        tags = described_class.new(params: { search: 'tag' }).execute
+
+        expect(tags.count).to eq 1
+      end
+    end
+  end
+end