Refactor inactive contact archivation

Fixes #956

test/models/contact/archivable_test.rb

@@ -0,0 +1,81 @@
+require 'test_helper'
+
+class ArchivableContactTest < ActiveSupport::TestCase
+  setup do
+    @contact = contacts(:john)
+  end
+
+  def test_contact_is_archivable_when_it_was_linked_and_inactivity_period_has_passed
+    DomainVersion.stub(:was_contact_linked?, true) do
+      DomainVersion.stub(:contact_unlinked_more_than?, true) do
+        assert @contact.archivable?
+      end
+    end
+  end
+
+  def test_contact_is_archivable_when_it_was_never_linked_and_inactivity_period_has_passed
+    Contact.inactivity_period = 1.second
+    @contact.created_at = Time.zone.parse('2010-07-05 00:00:00')
+    travel_to Time.zone.parse('2010-07-05 00:00:01')
+
+    DomainVersion.stub(:was_contact_linked?, false) do
+      assert @contact.archivable?
+    end
+  end
+
+  def test_contact_is_not_archivable_when_it_was_never_linked_and_inactivity_period_has_not_passed
+    Contact.inactivity_period = 1.second
+    @contact.created_at = Time.zone.parse('2010-07-05')
+    travel_to Time.zone.parse('2010-07-05')
+
+    DomainVersion.stub(:contact_unlinked_more_than?, false) do
+      assert_not @contact.archivable?
+    end
+  end
+
+  def test_contact_is_not_archivable_when_it_was_ever_linked_but_linked_within_inactivity_period
+    DomainVersion.stub(:was_contact_linked?, true) do
+      DomainVersion.stub(:contact_unlinked_more_than?, false) do
+        assert_not @contact.archivable?
+      end
+    end
+  end
+
+  def test_archives_contact
+    contact = archivable_contact
+
+    assert_difference 'Contact.count', -1 do
+      contact.archive
+    end
+  end
+
+  def test_unarchivable_contact_cannot_be_archived
+    contact = unarchivable_contact
+
+    e = assert_raises do
+      contact.archive
+    end
+    assert_equal 'Contact cannot be archived', e.message
+  end
+
+  private
+
+  def archivable_contact
+    contact = contacts(:john)
+    Contact.inactivity_period = 0.seconds
+    DomainVersion.delete_all
+
+    other_contact = contacts(:william)
+    assert_not_equal other_contact, contact
+    Domain.update_all(registrant_id: other_contact)
+
+    DomainContact.delete_all
+
+    contact
+  end
+
+  def unarchivable_contact
+    Contact.inactivity_period = 99.years
+    @contact
+  end
+end