1 files changed, 36 insertions, 0 deletions
diff --git a/spec/graphql/resolvers/repository_branch_names_resolver_spec.rb b/spec/graphql/resolvers/repository_branch_names_resolver_spec.rb
new file mode 100644
index 00000000000..398dd7a2e2e
--- /dev/null
+++ b/spec/graphql/resolvers/repository_branch_names_resolver_spec.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Resolvers::RepositoryBranchNamesResolver do
+  include GraphqlHelpers
+
+  let(:project) { create(:project, :repository) }
+
+  describe '#resolve' do
+    subject(:resolve_branch_names) do
+      resolve(
+        described_class,
+        obj: project.repository,
+        args: { search_pattern: pattern },
+        ctx: { current_user: project.creator }
+      )
+    end
+
+    context 'with empty search pattern' do
+      let(:pattern) { '' }
+
+      it 'returns nil' do
+        expect(resolve_branch_names).to eq(nil)
+      end
+    end
+
+    context 'with a valid search pattern' do
+      let(:pattern) { 'mas*' }
+
+      it 'returns matching branches' do
+        expect(resolve_branch_names).to match_array(['master'])
+      end
+    end
+  end
+end