spec/unit/virtus/attribute/collection/coerce_spec.rb in virtus-1.0.2 vs spec/unit/virtus/attribute/collection/coerce_spec.rb in virtus-1.0.3

@@ -48,6 +48,27 @@
       it 'coerces members' do
         expect(subject).to eq(output)
       end
     end
   end
+
+  context 'when input is nil' do
+    let(:input) { nil }
+
+    fake(:coercer)     { Virtus::Attribute::Coercer }
+    fake(:member_type) { Virtus::Attribute }
+
+    let(:member_primitive) { Integer }
+
+    let(:object) {
+      described_class.build(
+        Array[member_primitive], coercer: coercer, member_type: member_type
+      )
+    }
+
+    it 'returns nil' do
+      stub(coercer).call(input) { input }
+
+      expect(subject).to be(input)
+    end
+  end
 end