1 files changed, 43 insertions, 0 deletions
diff --git a/spec/services/ci/runners/unassign_runner_service_spec.rb b/spec/services/ci/runners/unassign_runner_service_spec.rb
new file mode 100644
index 00000000000..3fb6925f4bd
--- /dev/null
+++ b/spec/services/ci/runners/unassign_runner_service_spec.rb
@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe ::Ci::Runners::UnassignRunnerService, '#execute' do
+  subject(:service) { described_class.new(runner_project, user).execute }
+
+  let_it_be(:runner) { create(:ci_runner, :project, projects: [project]) }
+  let_it_be(:project) { create(:project) }
+
+  let(:runner_project) { runner.runner_projects.last }
+
+  context 'without user' do
+    let(:user) { nil }
+
+    it 'does not destroy runner_project', :aggregate_failures do
+      expect(runner_project).not_to receive(:destroy)
+      expect { service }.not_to change { runner.runner_projects.count }.from(1)
+
+      is_expected.to eq(false)
+    end
+  end
+
+  context 'with unauthorized user' do
+    let(:user) { build(:user) }
+
+    it 'does not call destroy on runner_project' do
+      expect(runner).not_to receive(:destroy)
+
+      service
+    end
+  end
+
+  context 'with admin user', :enable_admin_mode do
+    let(:user) { create_default(:user, :admin) }
+
+    it 'destroys runner_project' do
+      expect(runner_project).to receive(:destroy).once
+
+      service
+    end
+  end
+end