1 files changed, 22 insertions, 0 deletions
diff --git a/spec/config/settings_spec.rb b/spec/config/settings_spec.rb
index 9db3d35cbe5..ed873478fc9 100644
--- a/spec/config/settings_spec.rb
+++ b/spec/config/settings_spec.rb
@@ -112,4 +112,26 @@ RSpec.describe Settings do
       end
     end
   end
+
+  describe '.cron_for_usage_ping' do
+    it 'returns correct crontab for some manually calculated example' do
+      allow(Gitlab::CurrentSettings)
+        .to receive(:uuid) { 'd9e2f4e8-db1f-4e51-b03d-f427e1965c4a'}
+
+      expect(described_class.send(:cron_for_usage_ping)).to eq('21 18 * * 4')
+    end
+
+    it 'returns min, hour, day in the valid range' do
+      allow(Gitlab::CurrentSettings)
+        .to receive(:uuid) { SecureRandom.uuid }
+
+      10.times do
+        cron = described_class.send(:cron_for_usage_ping).split(/\s/)
+
+        expect(cron[0].to_i).to be_between(0, 59)
+        expect(cron[1].to_i).to be_between(0, 23)
+        expect(cron[4].to_i).to be_between(0, 6)
+      end
+    end
+  end
 end