1 files changed, 56 insertions, 0 deletions
diff --git a/spec/lib/gitlab/service_desk_spec.rb b/spec/lib/gitlab/service_desk_spec.rb
new file mode 100644
index 00000000000..f554840ec78
--- /dev/null
+++ b/spec/lib/gitlab/service_desk_spec.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::ServiceDesk do
+  before do
+    allow(Gitlab::IncomingEmail).to receive(:enabled?).and_return(true)
+    allow(Gitlab::IncomingEmail).to receive(:supports_wildcard?).and_return(true)
+  end
+
+  describe 'enabled?' do
+    let_it_be(:project) { create(:project) }
+
+    subject { described_class.enabled?(project: project) }
+
+    it { is_expected.to be_truthy }
+
+    context 'when service desk is not supported' do
+      before do
+        allow(described_class).to receive(:supported?).and_return(false)
+      end
+
+      it { is_expected.to be_falsy }
+    end
+
+    context 'when service desk is disabled for project' do
+      before do
+        project.update!(service_desk_enabled: false)
+      end
+
+      it { is_expected.to be_falsy }
+    end
+  end
+
+  describe 'supported?' do
+    subject { described_class.supported? }
+
+    it { is_expected.to be_truthy }
+
+    context 'when incoming emails are disabled' do
+      before do
+        allow(Gitlab::IncomingEmail).to receive(:enabled?).and_return(false)
+      end
+
+      it { is_expected.to be_falsy }
+    end
+
+    context 'when email key is not supported' do
+      before do
+        allow(Gitlab::IncomingEmail).to receive(:supports_wildcard?).and_return(false)
+      end
+
+      it { is_expected.to be_falsy }
+    end
+  end
+end