1 files changed, 26 insertions, 0 deletions
diff --git a/spec/graphql/resolvers/branch_commit_resolver_spec.rb b/spec/graphql/resolvers/branch_commit_resolver_spec.rb
new file mode 100644
index 00000000000..22e1de8f375
--- /dev/null
+++ b/spec/graphql/resolvers/branch_commit_resolver_spec.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Resolvers::BranchCommitResolver do
+  include GraphqlHelpers
+
+  subject(:commit) { resolve(described_class, obj: branch) }
+
+  let_it_be(:repository) { create(:project, :repository).repository }
+  let(:branch) { repository.find_branch('master') }
+
+  describe '#resolve' do
+    it 'resolves commit' do
+      is_expected.to eq(repository.commits('master', limit: 1).last)
+    end
+
+    context 'when branch does not exist' do
+      let(:branch) { nil }
+
+      it 'returns nil' do
+        is_expected.to be_nil
+      end
+    end
+  end
+end