1 files changed, 23 insertions, 0 deletions
diff --git a/spec/models/ci/project_variable_spec.rb b/spec/models/ci/project_variable_spec.rb
index 2c72c401f04..3c2d6a19cf5 100644
--- a/spec/models/ci/project_variable_spec.rb
+++ b/spec/models/ci/project_variable_spec.rb
@@ -3,5 +3,28 @@ require 'spec_helper'
 describe Ci::ProjectVariable, models: true do
   subject { build(:ci_project_variable) }
 
+  it { is_expected.to include_module(HasVariable) }
   it { is_expected.to validate_uniqueness_of(:key).scoped_to(:project_id) }
+
+  describe '.unprotected' do
+    subject { described_class.unprotected }
+
+    context 'when variable is protected' do
+      before do
+        create(:ci_variable, :protected)
+      end
+
+      it 'returns nothing' do
+        is_expected.to be_empty
+      end
+    end
+
+    context 'when variable is not protected' do
+      let(:variable) { create(:ci_variable, protected: false) }
+
+      it 'returns the variable' do
+        is_expected.to contain_exactly(variable)
+      end
+    end
+  end
 end