Add case insensitive branches search

app/finders/branches_finder.rb

@@ -23,7 +23,7 @@ class BranchesFinder
 
   def filter_by_name(branches)
     if search
-      branches.select { |branch| branch.name.include?(search) }
+      branches.select { |branch| branch.name.upcase.include?(search.upcase) }
     else
       branches
     end

changelogs/unreleased/35199-case-insensitive-branches-search.yml

+---
+title: Case insensitive search for branches
+merge_request: 14995
+author: George Andrinopoulos
+type: fixed

spec/finders/branches_finder_spec.rb

@@ -46,6 +46,15 @@ describe BranchesFinder do
         expect(result.count).to eq(1)
       end
 
+      it 'filters branches by name ignoring letter case' do
+        branches_finder = described_class.new(repository, { search: 'FiX' })
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq('fix')
+        expect(result.count).to eq(1)
+      end
+
       it 'does not find any branch with that name' do
         branches_finder = described_class.new(repository, { search: 'random' })