1 files changed, 32 insertions, 0 deletions

diff --git a/spec/services/discussions/unresolve_service_spec.rb b/spec/services/discussions/unresolve_service_spec.rb
new file mode 100644
index 00000000000..6298a00a474
--- /dev/null
+++ b/spec/services/discussions/unresolve_service_spec.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+RSpec.describe Discussions::UnresolveService do
+  describe "#execute" do
+    let_it_be(:project) { create(:project, :repository) }
+    let_it_be(:user) { create(:user, developer_projects: [project]) }
+    let_it_be(:merge_request) { create(:merge_request, :merge_when_pipeline_succeeds, source_project: project) }
+    let(:discussion) { create(:diff_note_on_merge_request, noteable: merge_request, project: project).to_discussion }
+
+    let(:service) { described_class.new(discussion, user) }
+
+    before do
+      project.add_developer(user)
+      discussion.resolve!(user)
+    end
+
+    it "unresolves the discussion" do
+      service.execute
+
+      expect(discussion).not_to be_resolved
+    end
+
+    it "counts the unresolve event" do
+      expect(Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter)
+        .to receive(:track_unresolve_thread_action).with(user: user)
+
+      service.execute
+    end
+  end
+end