Test controlled vocab lockdown

spec/features/ingest_form_spec.rb

@@ -145,4 +145,36 @@ def mark_as_reviewed
     expect(page.status_code).to eq(200)
     pending "Need to verify that the show view has the data we ingested"
   end
+
+  it "locks down controlled vocabulary ingest fields on select" do
+    # Hack the map to add a subject
+    INGEST_MAP[:subject][:subj2] = "descMetadata.subject"
+
+    visit_ingest_url
+
+    subject_div = ingest_group_nodes("subject").first
+
+    # We should have no trouble finding the "subj2" option
+    subj2_selector = "option[value=subj2]"
+    expect(subject_div).to have_selector(subj2_selector)
+
+    # We should have no trouble typing into the value field
+    value_field = subject_div.find("input.value-field")
+    value_field.native.send_key("blargh")
+    expect(value_field.value).to eq("blargh")
+
+    vocab_subject = "Canned foods industry--Accidents"
+    vocab_uri = "http://id.loc.gov/authorities/subjects/sh2007009834"
+    choose_controlled_vocabulary_item("subject", "subject", "food", vocab_subject, vocab_uri)
+
+    # "subj2" should now be missing, which is how we fake readonly for the select
+    expect(subject_div).not_to have_selector(subj2_selector)
+
+    # Value field should be completely read-only
+    value_field = subject_div.find("input.value-field")
+    value_field.native.send_key("blargh")
+    expect(value_field.value).to eq(vocab_subject)
+
+    INGEST_MAP[:subject].delete(:subj2)
+  end
 end