1 files changed, 37 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/build/policy_spec.rb b/spec/lib/gitlab/ci/build/policy_spec.rb
new file mode 100644
index 00000000000..20ee3dd3e89
--- /dev/null
+++ b/spec/lib/gitlab/ci/build/policy_spec.rb
@@ -0,0 +1,37 @@
+require 'spec_helper'
+
+describe Gitlab::Ci::Build::Policy do
+  let(:policy) { spy('policy specification') }
+
+  before do
+    stub_const("#{described_class}::Something", policy)
+  end
+
+  describe '.fabricate' do
+    context 'when policy exists' do
+      it 'fabricates and initializes relevant policy' do
+        specs = described_class.fabricate(something: 'some value')
+
+        expect(specs).to be_an Array
+        expect(specs).to be_one
+        expect(policy).to have_received(:new).with('some value')
+      end
+    end
+
+    context 'when some policies are not defined' do
+      it 'gracefully skips unknown policies' do
+        expect { described_class.fabricate(unknown: 'first') }
+          .to raise_error(NameError)
+      end
+    end
+
+    context 'when passing a nil value as specs' do
+      it 'returns an empty array' do
+        specs = described_class.fabricate(nil)
+
+        expect(specs).to be_an Array
+        expect(specs).to be_empty
+      end
+    end
+  end
+end