Use legal_document_field instead of file_field in registrar area

#270

app/views/registrar/contacts/form/_legal_document.haml

@@ -10,4 +10,4 @@
         = f.label :legal_document, t(:legal_document)
         %p.help-block= t(:legal_document_max_size)
       .col-md-7
-        = f.file_field :legal_document, :value => '', data: {legal_document: true}
+        = f.legal_document_field :legal_document

app/views/registrar/domains/_form.haml

@@ -18,7 +18,7 @@
               = label_tag 'domain[legal_document]', t(:legal_document), class: c
               %p.help-block= t(:legal_document_max_size)
             .col-md-7
-              = file_field_tag 'domain[legal_document]', required: fr, data: {legal_document: true}
+              = legal_document_field_tag 'domain[legal_document]', required: fr
     .col-md-4
       %p.domain-general-help= t(:domain_general_help).html_safe
       %p.domain-admin-contact-help= t(:domain_admin_contact_help).html_safe

spec/views/registrar/contacts/form/_legal_document.haml_spec.rb

@@ -0,0 +1,15 @@
+require 'rails_helper'
+
+RSpec.describe 'registrar/contacts/form/_legal_document' do
+  let(:contact) { instance_spy(Depp::Contact) }
+
+  before :example do
+    allow(view).to receive(:f).and_return(DefaultFormBuilder.new(:depp_contact, contact, view, {}))
+    assign(:contact, contact)
+  end
+
+  it 'has legal document' do
+    render
+    expect(rendered).to have_css('[name="depp_contact[legal_document]"]')
+  end
+end

spec/views/registrar/domains/_form.haml_spec.rb

@@ -0,0 +1,20 @@
+require 'rails_helper'
+
+RSpec.describe 'registrar/domains/_form' do
+  let(:domain) { instance_spy(Depp::Domain) }
+
+  before :example do
+    allow(view).to receive(:f).and_return(DefaultFormBuilder.new(:domain, domain, view, {}))
+    assign(:domain, domain)
+
+    stub_template 'registrar/domains/form/_general' => ''
+    stub_template 'registrar/domains/form/_contacts' => ''
+    stub_template 'registrar/domains/form/_nameservers' => ''
+    stub_template 'registrar/domains/form/_dnskeys' => ''
+  end
+
+  it 'has legal document' do
+    render
+    expect(rendered).to have_css('[name="domain[legal_document]"]')
+  end
+end