AP-4575 [EXT]: Allow whitespace and case-insensitive searching

app/forms/base_form.rb

@@ -32,6 +32,12 @@ def attr_accessor(*symbols)
     def locally_assigned
       @locally_assigned ||= []
     end
+
+    def normalizes(name, with:)
+      send(:before_validation, proc {
+        send("#{name}=", with.call(send(name)))
+      })
+    end
   end
 
   def initialize(*args)

app/forms/copy_case/search_form.rb

@@ -6,6 +6,8 @@ class SearchForm < BaseForm
 
     attr_accessor :search_ref, :copiable_case
 
+    normalizes :search_ref, with: ->(search_ref) { search_ref.strip.upcase }
+
     validates :search_ref,
               presence: true,
               format: { with: APPLICATION_REF_REGEXP },

app/forms/link_case/search_form.rb

@@ -6,6 +6,8 @@ class SearchForm < BaseForm
 
     APPLICATION_REF_REGEXP = /\AL-[0-9ABCDEFHIJKLMNPRTUVWXY]{3}-[0-9ABCDEFHIJKLMNPRTUVWXY]{3}\z/
 
+    normalizes :search_ref, with: ->(search_ref) { search_ref.strip.upcase }
+
     validates :search_ref,
               presence: true,
               format: { with: APPLICATION_REF_REGEXP },

spec/forms/copy_case/search_form_spec.rb

@@ -67,6 +67,22 @@
       end
     end
 
+    context "with a mixed case and whitespace including but otherwise valid application reference" do
+      let(:search_ref) { " \t l-TVH-u0t  \t" }
+
+      let(:source_application) do
+        create(:legal_aid_application,
+               application_ref: "L-TVH-U0T",
+               provider: legal_aid_application.provider)
+      end
+
+      before { source_application }
+
+      it "finds the application id" do
+        expect { call_save }.to change(instance, :copiable_case).from(nil).to(source_application)
+      end
+    end
+
     context "with a valid format but non-existant application reference" do
       let(:search_ref) { "L-FFF-FFF" }
 

spec/forms/link_case/search_form_spec.rb

@@ -37,6 +37,20 @@
       end
     end
 
+    context "with a mixed case and whitespace including but otherwise valid application reference" do
+      let(:search_ref) { " \t l-TVH-u0t  \t" }
+
+      let(:source_application) do
+        create(:legal_aid_application, application_ref: "L-TVH-U0T")
+      end
+
+      before { source_application }
+
+      it "finds the application id" do
+        expect { call_save }.to change(instance, :linkable_case).from(nil).to(source_application)
+      end
+    end
+
     context "with a valid format but non-existant application reference" do
       let(:search_ref) { "L-FFF-FFF" }