1 files changed, 41 insertions, 0 deletions
diff --git a/spec/support/shared_examples/models/concerns/sanitizable_shared_examples.rb b/spec/support/shared_examples/models/concerns/sanitizable_shared_examples.rb
new file mode 100644
index 00000000000..ed94a71892d
--- /dev/null
+++ b/spec/support/shared_examples/models/concerns/sanitizable_shared_examples.rb
@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+RSpec.shared_examples 'sanitizable' do |factory, fields|
+  let(:attributes) { fields.to_h { |field| [field, input] } }
+
+  it 'includes Sanitizable' do
+    expect(described_class).to include(Sanitizable)
+  end
+
+  fields.each do |field|
+    subject do
+      record = build(factory, attributes)
+      record.valid?
+
+      record.public_send(field)
+    end
+
+    describe "##{field}" do
+      context 'when input includes javascript tags' do
+        let(:input) { 'hello<script>alert(1)</script>' }
+
+        it 'gets sanitized' do
+          expect(subject).to eq('hello')
+        end
+      end
+    end
+
+    describe "##{field} validation" do
+      context 'when input contains pre-escaped html entities' do
+        let_it_be(:input) { '&lt;script&gt;alert(1)&lt;/script&gt;' }
+
+        subject { build(factory, attributes) }
+
+        it 'is not valid', :aggregate_failures do
+          expect(subject).not_to be_valid
+          expect(subject.errors.details[field].flat_map(&:values)).to include('cannot contain escaped HTML entities')
+        end
+      end
+    end
+  end
+end