1 files changed, 46 insertions, 0 deletions

diff --git a/spec/graphql/mutations/issues/set_locked_spec.rb b/spec/graphql/mutations/issues/set_locked_spec.rb
new file mode 100644
index 00000000000..10438226c17
--- /dev/null
+++ b/spec/graphql/mutations/issues/set_locked_spec.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::Issues::SetLocked do
+  let_it_be(:issue) { create(:issue) }
+  let_it_be(:user) { create(:user) }
+
+  subject(:mutation) { described_class.new(object: nil, context: { current_user: user }, field: nil) }
+
+  specify { expect(described_class).to require_graphql_authorizations(:update_issue) }
+
+  describe '#resolve' do
+    let(:locked) { true }
+
+    subject { mutation.resolve(project_path: issue.project.full_path, iid: issue.iid, locked: locked) }
+
+    it 'raises an error if the resource is not accessible to the user' do
+      expect { subject }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+    end
+
+    context 'when the user can update the issue' do
+      let(:mutated_issue) { subject[:issue] }
+
+      before do
+        issue.project.add_developer(user)
+      end
+
+      it 'returns the issue as discussion locked' do
+        expect(mutated_issue).to eq(issue)
+        expect(mutated_issue).to be_discussion_locked
+        expect(subject[:errors]).to be_empty
+      end
+
+      context 'when passing locked as false' do
+        let(:locked) { false }
+
+        it 'unlocks the discussion' do
+          issue.update!(discussion_locked: true)
+
+          expect(mutated_issue).not_to be_discussion_locked
+        end
+      end
+    end
+  end
+end