Extract phone validation from contact spec

#569

spec/models/contact/phone_spec.rb

@@ -0,0 +1,37 @@
+require 'rails_helper'
+
+RSpec.describe Contact do
+  describe 'phone validation', db: false do
+    let(:contact) { described_class.new }
+
+    it 'rejects absent' do
+      contact.phone = nil
+      contact.validate
+      expect(contact.errors).to have_key(:phone)
+    end
+
+    it 'rejects invalid format' do
+      contact.phone = '123'
+      contact.validate
+      expect(contact.errors).to have_key(:phone)
+    end
+
+    it 'rejects all zeros in country code' do
+      contact.phone = '+000.1'
+      contact.validate
+      expect(contact.errors).to have_key(:phone)
+    end
+
+    it 'rejects all zeros in phone number' do
+      contact.phone = '+123.0'
+      contact.validate
+      expect(contact.errors).to have_key(:phone)
+    end
+
+    it 'accepts valid' do
+      contact.phone = '+123.4'
+      contact.validate
+      expect(contact.errors).to_not have_key(:phone)
+    end
+  end
+end

spec/models/contact_spec.rb

@@ -455,40 +455,6 @@ RSpec.describe Contact do
     end
   end
 
-  describe 'phone validation', db: false do
-    let(:contact) { described_class.new }
-
-    it 'rejects absent' do
-      contact.phone = nil
-      contact.validate
-      expect(contact.errors).to have_key(:phone)
-    end
-
-    it 'rejects invalid format' do
-      contact.phone = '123'
-      contact.validate
-      expect(contact.errors).to have_key(:phone)
-    end
-
-    it 'rejects all zeros in country code' do
-      contact.phone = '+000.1'
-      contact.validate
-      expect(contact.errors).to have_key(:phone)
-    end
-
-    it 'rejects all zeros in phone number' do
-      contact.phone = '+123.0'
-      contact.validate
-      expect(contact.errors).to have_key(:phone)
-    end
-
-    it 'accepts valid' do
-      contact.phone = '+123.4'
-      contact.validate
-      expect(contact.errors).to_not have_key(:phone)
-    end
-  end
-
   describe '#remove_address' do
     let(:contact) { described_class.new(city: 'test',
                                         street: 'test',