Refactoring: Migrate email_process_follow_up_test to RSpec

.rubocop_todo.rspec.yml

@@ -272,7 +272,7 @@ RSpec/NamedSubject:
 
 # Offense count: 545
 RSpec/NestedGroups:
-  Max: 7
+  Max: 8
 
 # Offense count: 28
 # Cop supports --auto-correct.

spec/models/channel/email_parser_spec.rb

@@ -35,6 +35,8 @@ RSpec.describe Channel::EmailParser, type: :model do
   describe '#process' do
     let(:raw_mail)  { File.read(mail_file) }
 
+    before { Trigger.destroy_all }  # triggers may cause additional articles to be created
+
     describe 'auto-creating new users' do
       context 'with one unrecognized email address' do
         it 'creates one new user' do
@@ -98,7 +100,7 @@ RSpec.describe Channel::EmailParser, type: :model do
         it 'creates a ticket and article' do
           expect { Channel::EmailParser.new.process({}, raw_mail) }
             .to change { Ticket.count }.by(1)
-            .and change { Ticket::Article.count }.by_at_least(1)  # triggers may cause additional articles to be created
+            .and change { Ticket::Article.count }.by_at_least(1)
         end
 
         it 'sets #title to email subject' do
@@ -156,99 +158,485 @@ RSpec.describe Channel::EmailParser, type: :model do
     end
 
     describe 'associating emails to existing tickets' do
-      let(:mail_file) { Rails.root.join('test', 'data', 'mail', 'mail001.box') }
+      let!(:ticket) { create(:ticket) }
       let(:ticket_ref) { Setting.get('ticket_hook') + Setting.get('ticket_hook_divider') + ticket.number }
-      let(:ticket) { create(:ticket) }
 
-      context 'when email subject contains ticket reference' do
+      describe 'based on where a ticket reference appears in the message' do
-        let(:raw_mail) { File.read(mail_file).sub(/(?<=^Subject: ).*$/, ticket_ref) }
+        shared_context 'ticket reference in subject' do
+          let(:raw_mail) { <<~RAW.chomp }
+            From: me@example.com
+            To: customer@example.com
+            Subject: #{ticket_ref}
 
+            Lorem ipsum dolor
+          RAW
+        end
+
+        shared_context 'ticket reference in body' do
+          let(:raw_mail) { <<~RAW.chomp }
+            From: me@example.com
+            To: customer@example.com
+            Subject: no reference
+
+            Lorem ipsum dolor #{ticket_ref}
+          RAW
+        end
+
+        shared_context 'ticket reference in body (text/html)' do
+          let(:raw_mail) { <<~RAW.chomp }
+            From: me@example.com
+            To: customer@example.com
+            Subject: no reference
+            Content-Transfer-Encoding: 7bit
+            Content-Type: text/html;
+
+            <b>Lorem ipsum dolor #{ticket_ref}</b>
+          RAW
+        end
+
+        shared_context 'ticket reference in attachment' do
+          let(:raw_mail) { <<~RAW.chomp }
+            From: me@example.com
+            Content-Type: multipart/mixed; boundary="Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2"
+            Subject: no reference
+            Date: Sun, 30 Aug 2015 23:20:54 +0200
+            To: Martin Edenhofer <me@znuny.com>
+            Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\))
+            X-Mailer: Apple Mail (2.2104)
+
+
+            --Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2
+            Content-Transfer-Encoding: 7bit
+            Content-Type: text/plain;
+              charset=us-ascii
+
+            no reference
+            --Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2
+            Content-Disposition: attachment;
+              filename=test1.txt
+            Content-Type: text/plain;
+              name="test.txt"
+            Content-Transfer-Encoding: 7bit
+
+            Some Text #{ticket_ref}
+
+            --Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2--
+          RAW
+        end
+
+        shared_context 'ticket reference in In-Reply-To header' do
+          let(:raw_mail) { <<~RAW.chomp }
+            From: me@example.com
+            To: customer@example.com
+            Subject: no reference
+            In-Reply-To: #{article.message_id}
+
+            Lorem ipsum dolor
+          RAW
+
+          let!(:article) { create(:ticket_article, ticket: ticket, message_id: '<20150830145601.30.608882@edenhofer.zammad.com>') }
+        end
+
+        shared_context 'ticket reference in References header' do
+          let(:raw_mail) { <<~RAW.chomp }
+            From: me@example.com
+            To: customer@example.com
+            Subject: no reference
+            References: <DA918CD1-BE9A-4262-ACF6-5001E59291B6@znuny.com> #{article.message_id} <DA918CD1-BE9A-4262-ACF6-5001E59291XX@znuny.com>
+
+            Lorem ipsum dolor
+          RAW
+
+          let!(:article) { create(:ticket_article, ticket: ticket, message_id: '<20150830145601.30.608882@edenhofer.zammad.com>') }
+        end
+
+        shared_examples 'adds message to ticket' do
           it 'adds message to ticket' do
             expect { described_class.new.process({}, raw_mail) }
-            .to change { ticket.articles.length }
+              .to change { ticket.articles.length }.by(1)
+          end
+        end
+
+        shared_examples 'creates a new ticket' do
+          it 'creates a new ticket' do
+            expect { described_class.new.process({}, raw_mail) }
+              .to change { Ticket.count }.by(1)
+              .and not_change { ticket.articles.length }
+          end
+        end
+
+        context 'when not explicitly configured to search anywhere' do
+          before { Setting.set('postmaster_follow_up_search_in', nil) }
+
+          context 'when subject contains ticket reference' do
+            include_context 'ticket reference in subject'
+            include_examples 'adds message to ticket'
+
+            context 'alongside other, invalid ticket references' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: me@example.com
+                To: customer@example.com
+                Subject: [#{Setting.get('ticket_hook') + Setting.get('ticket_hook_divider') + Ticket::Number.generate}] #{ticket_ref}
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
             end
 
             context 'and ticket is closed' do
               before { ticket.update(state: Ticket::State.find_by(name: 'closed')) }
 
-          it 'adds message to ticket' do
+              include_examples 'adds message to ticket'
-            expect { described_class.new.process({}, raw_mail) }
-              .to change { ticket.articles.length }
-          end
             end
 
             context 'but ticket group’s #follow_up_possible attribute is "new_ticket"' do
               before { ticket.group.update(follow_up_possible: 'new_ticket') }
 
               context 'and ticket is open' do
-            it 'still adds message to ticket' do
+                include_examples 'adds message to ticket'
-              expect { described_class.new.process({}, raw_mail) }
-                .to change { ticket.articles.length }
-            end
               end
 
               context 'and ticket is closed' do
                 before { ticket.update(state: Ticket::State.find_by(name: 'closed')) }
 
-            it 'creates a new ticket' do
+                include_examples 'creates a new ticket'
-              expect { described_class.new.process({}, raw_mail) }
-                .to change { Ticket.count }.by(1)
-                .and not_change { ticket.articles.length }
-            end
               end
 
               context 'and ticket is merged' do
                 before { ticket.update(state: Ticket::State.find_by(name: 'merged')) }
 
-            it 'creates a new ticket' do
+                include_examples 'creates a new ticket'
-              expect { described_class.new.process({}, raw_mail) }
-                .to change { Ticket.count }.by(1)
-                .and not_change { ticket.articles.length }
-            end
               end
 
               context 'and ticket is removed' do
                 before { ticket.update(state: Ticket::State.find_by(name: 'removed')) }
 
-            it 'creates a new ticket' do
+                include_examples 'creates a new ticket'
-              expect { described_class.new.process({}, raw_mail) }
-                .to change { Ticket.count }.by(1)
-                .and not_change { ticket.articles.length }
               end
             end
+
+            context 'and "ticket_hook" setting is non-default value' do
+              before { Setting.set('ticket_hook', 'VD-Ticket#') }
+
+              include_examples 'adds message to ticket'
+            end
+          end
+
+          context 'when body contains ticket reference' do
+            include_context 'ticket reference in body'
+            include_examples 'creates a new ticket'
+          end
+
+          context 'when attachment contains ticket reference' do
+            include_context 'ticket reference in attachment'
+            include_examples 'creates a new ticket'
+          end
+
+          context 'when In-Reply-To header contains article message-id' do
+            include_context 'ticket reference in In-Reply-To header'
+            include_examples 'creates a new ticket'
+
+            context 'and subject matches article subject' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: customer@example.com
+                To: me@example.com
+                Subject: AW: RE: #{article.subject}
+                In-Reply-To: #{article.message_id}
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+
+            context 'and "ticket_hook_position" setting is "none"' do
+              before { Setting.set('ticket_hook_position', 'none') }
+
+              let(:raw_mail) { <<~RAW.chomp }
+                From: customer@example.com
+                To: me@example.com
+                Subject: RE: Foo bar
+                In-Reply-To: #{article.message_id}
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+          end
+
+          context 'when References header contains article message-id' do
+            include_context 'ticket reference in References header'
+            include_examples 'creates a new ticket'
+
+            context 'and Auto-Submitted header reads "auto-replied"' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: me@example.com
+                To: customer@example.com
+                Subject: no reference
+                References: #{article.message_id}
+                Auto-Submitted: auto-replied
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+
+            context 'and subject matches article subject' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: customer@example.com
+                To: me@example.com
+                Subject: AW: RE: #{article.subject}
+                References: #{article.message_id}
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+
+            context 'and "ticket_hook_position" setting is "none"' do
+              before { Setting.set('ticket_hook_position', 'none') }
+
+              let(:raw_mail) { <<~RAW.chomp }
+                From: customer@example.com
+                To: me@example.com
+                Subject: RE: Foo bar
+                References: #{article.message_id}
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
           end
         end
 
         context 'when configured to search body' do
           before { Setting.set('postmaster_follow_up_search_in', 'body') }
 
+          context 'when subject contains ticket reference' do
+            include_context 'ticket reference in subject'
+            include_examples 'adds message to ticket'
+          end
+
           context 'when body contains ticket reference' do
             context 'in visible text' do
-            let(:raw_mail) { File.read(mail_file).sub(/Hallo =\nMartin,(?=<o:p>)/, ticket_ref) }
+              include_context 'ticket reference in body'
-
+              include_examples 'adds message to ticket'
-            it 'adds message to ticket' do
-              expect { described_class.new.process({}, raw_mail) }
-                .to change { ticket.articles.length }
-            end
             end
 
             context 'as part of a larger word' do
-            let(:raw_mail) { File.read(mail_file).sub(/(?<=Hallo) =\n(?=Martin,<o:p>)/, ticket_ref) }
+              let(:ticket_ref) { "Foo#{Setting.get('ticket_hook')}#{Setting.get('ticket_hook_divider')}#{ticket.number}bar" }
 
-            it 'creates a separate ticket' do
+              include_context 'ticket reference in body'
-              expect { described_class.new.process({}, raw_mail) }
+              include_examples 'creates a new ticket'
-                .not_to change { ticket.articles.length }
             end
+
+            context 'between html tags' do
+              include_context 'ticket reference in body (text/html)'
+              include_examples 'adds message to ticket'
             end
 
             context 'in html attributes' do
-            let(:raw_mail) { File.read(mail_file).sub(%r{<a href.*?/a>}m, %(<table bgcolor="#{ticket_ref}"> </table>)) }
+              let(:ticket_ref) { %(<table bgcolor="#{Setting.get('ticket_hook')}#{Setting.get('ticket_hook_divider')}#{ticket.number}"> </table>) }
 
-            it 'creates a separate ticket' do
+              include_context 'ticket reference in body (text/html)'
+              include_examples 'creates a new ticket'
+            end
+          end
+
+          context 'when attachment contains ticket reference' do
+            include_context 'ticket reference in attachment'
+            include_examples 'creates a new ticket'
+          end
+
+          context 'when In-Reply-To header contains article message-id' do
+            include_context 'ticket reference in In-Reply-To header'
+            include_examples 'creates a new ticket'
+
+            context 'and Auto-Submitted header reads "auto-replied"' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: me@example.com
+                To: customer@example.com
+                Subject: no reference
+                References: #{article.message_id}
+                Auto-Submitted: auto-replied
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+          end
+
+          context 'when References header contains article message-id' do
+            include_context 'ticket reference in References header'
+            include_examples 'creates a new ticket'
+          end
+        end
+
+        context 'when configured to search attachments' do
+          before { Setting.set('postmaster_follow_up_search_in', 'attachment') }
+
+          context 'when subject contains ticket reference' do
+            include_context 'ticket reference in subject'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when body contains ticket reference' do
+            include_context 'ticket reference in body'
+            include_examples 'creates a new ticket'
+          end
+
+          context 'when attachment contains ticket reference' do
+            include_context 'ticket reference in attachment'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when In-Reply-To header contains article message-id' do
+            include_context 'ticket reference in In-Reply-To header'
+            include_examples 'creates a new ticket'
+          end
+
+          context 'when References header contains article message-id' do
+            include_context 'ticket reference in References header'
+            include_examples 'creates a new ticket'
+
+            context 'and Auto-Submitted header reads "auto-replied"' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: me@example.com
+                To: customer@example.com
+                Subject: no reference
+                References: #{article.message_id}
+                Auto-Submitted: auto-replied
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+          end
+        end
+
+        context 'when configured to search headers' do
+          before { Setting.set('postmaster_follow_up_search_in', 'references') }
+
+          context 'when subject contains ticket reference' do
+            include_context 'ticket reference in subject'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when body contains ticket reference' do
+            include_context 'ticket reference in body'
+            include_examples 'creates a new ticket'
+          end
+
+          context 'when attachment contains ticket reference' do
+            include_context 'ticket reference in attachment'
+            include_examples 'creates a new ticket'
+          end
+
+          context 'when In-Reply-To header contains article message-id' do
+            include_context 'ticket reference in In-Reply-To header'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when References header contains article message-id' do
+            include_context 'ticket reference in References header'
+            include_examples 'adds message to ticket'
+
+            context 'that matches two separate tickets' do
+              let!(:newer_ticket) { create(:ticket) }
+              let!(:newer_article) { create(:ticket_article, ticket: newer_ticket, message_id: article.message_id) }
+
+              it 'returns more recently created ticket' do
+                expect(described_class.new.process({}, raw_mail).first).to eq(newer_ticket)
+              end
+
+              it 'adds message to more recently created ticket' do
                 expect { described_class.new.process({}, raw_mail) }
-                .not_to change { ticket.articles.length }
+                  .to change { newer_ticket.articles.count }.by(1)
+                  .and not_change { ticket.articles.count }
               end
             end
+
+            context 'and Auto-Submitted header reads "auto-replied"' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: me@example.com
+                To: customer@example.com
+                Subject: no reference
+                References: #{article.message_id}
+                Auto-Submitted: auto-replied
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+          end
+        end
+
+        context 'when configured to search everything' do
+          before { Setting.set('postmaster_follow_up_search_in', %w[body attachment references]) }
+
+          context 'when subject contains ticket reference' do
+            include_context 'ticket reference in subject'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when body contains ticket reference' do
+            include_context 'ticket reference in body'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when attachment contains ticket reference' do
+            include_context 'ticket reference in attachment'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when In-Reply-To header contains article message-id' do
+            include_context 'ticket reference in In-Reply-To header'
+            include_examples 'adds message to ticket'
+          end
+
+          context 'when References header contains article message-id' do
+            include_context 'ticket reference in References header'
+            include_examples 'adds message to ticket'
+
+            context 'and Auto-Submitted header reads "auto-replied"' do
+              let(:raw_mail) { <<~RAW.chomp }
+                From: me@example.com
+                To: customer@example.com
+                Subject: no reference
+                References: #{article.message_id}
+                Auto-Submitted: auto-replied
+
+                Lorem ipsum dolor
+              RAW
+
+              include_examples 'adds message to ticket'
+            end
+          end
+        end
+      end
+
+      context 'for a closed ticket' do
+        let(:ticket) { create(:ticket, state_name: 'closed') }
+
+        let(:raw_mail) { <<~RAW.chomp }
+          From: me@example.com
+          To: customer@example.com
+          Subject: #{ticket_ref}
+
+          Lorem ipsum dolor
+        RAW
+
+        it 'reopens it' do
+          expect { described_class.new.process({}, raw_mail) }
+            .to change { ticket.reload.state.name }.to('open')
         end
       end
     end

spec/models/ticket_spec.rb

@@ -255,11 +255,94 @@ RSpec.describe Ticket, type: :model do
         end
       end
     end
+
+    describe '#subject_build' do
+      context 'with default "ticket_hook_position" setting ("right")' do
+        it 'returns the given string followed by a ticket reference (of the form "[Ticket#123]")' do
+          expect(ticket.subject_build('foo'))
+            .to eq("foo [Ticket##{ticket.number}]")
+        end
+
+        context 'and a non-default value for the "ticket_hook" setting' do
+          before { Setting.set('ticket_hook', 'bar baz') }
+
+          it 'replaces "Ticket#" with the new ticket hook' do
+            expect(ticket.subject_build('foo'))
+              .to eq("foo [bar baz#{ticket.number}]")
+          end
+        end
+
+        context 'and a non-default value for the "ticket_hook_divider" setting' do
+          before { Setting.set('ticket_hook_divider', ': ') }
+
+          it 'inserts the new ticket hook divider between "Ticket#" and the ticket number' do
+            expect(ticket.subject_build('foo'))
+              .to eq("foo [Ticket#: #{ticket.number}]")
+          end
+        end
+
+        context 'when the given string already contains a ticket reference, but in the wrong place' do
+          it 'moves the ticket reference to the end' do
+            expect(ticket.subject_build("[Ticket##{ticket.number}] foo"))
+              .to eq("foo [Ticket##{ticket.number}]")
+          end
+        end
+
+        context 'when the given string already contains an alternately formatted ticket reference' do
+          it 'reformats the ticket reference' do
+            expect(ticket.subject_build("foo [Ticket#: #{ticket.number}]"))
+              .to eq("foo [Ticket##{ticket.number}]")
+          end
+        end
+      end
+
+      context 'with alternate "ticket_hook_position" setting ("left")' do
+        before { Setting.set('ticket_hook_position', 'left') }
+
+        it 'returns a ticket reference (of the form "[Ticket#123]") followed by the given string' do
+          expect(ticket.subject_build('foo'))
+            .to eq("[Ticket##{ticket.number}] foo")
+        end
+
+        context 'and a non-default value for the "ticket_hook" setting' do
+          before { Setting.set('ticket_hook', 'bar baz') }
+
+          it 'replaces "Ticket#" with the new ticket hook' do
+            expect(ticket.subject_build('foo'))
+              .to eq("[bar baz#{ticket.number}] foo")
+          end
+        end
+
+        context 'and a non-default value for the "ticket_hook_divider" setting' do
+          before { Setting.set('ticket_hook_divider', ': ') }
+
+          it 'inserts the new ticket hook divider between "Ticket#" and the ticket number' do
+            expect(ticket.subject_build('foo'))
+              .to eq("[Ticket#: #{ticket.number}] foo")
+          end
+        end
+
+        context 'when the given string already contains a ticket reference, but in the wrong place' do
+          it 'moves the ticket reference to the start' do
+            expect(ticket.subject_build("foo [Ticket##{ticket.number}]"))
+              .to eq("[Ticket##{ticket.number}] foo")
+          end
+        end
+
+        context 'when the given string already contains an alternately formatted ticket reference' do
+          it 'reformats the ticket reference' do
+            expect(ticket.subject_build("[Ticket#: #{ticket.number}] foo"))
+              .to eq("[Ticket##{ticket.number}] foo")
+          end
+        end
+      end
+    end
   end
 
   describe 'Attributes:' do
     describe '#owner' do
       let(:original_owner) { create(:agent_user, groups: [ticket.group]) }
+
       before { ticket.update(owner: original_owner) }
 
       context 'when assigned directly' do

test/unit/email_process_follow_up_test.rb

@@ -1,546 +0,0 @@
-require 'test_helper'
-
-class EmailProcessFollowUpTest < ActiveSupport::TestCase
-
-  test 'process with follow up check' do
-
-    ticket = Ticket.create(
-      title:         'follow up check',
-      group:         Group.lookup(name: 'Users'),
-      customer_id:   2,
-      state:         Ticket::State.lookup(name: 'new'),
-      priority:      Ticket::Priority.lookup(name: '2 normal'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-    article = Ticket::Article.create(
-      ticket_id:     ticket.id,
-      from:          'some_sender@example.com',
-      to:            'some_recipient@example.com',
-      subject:       'follow up check',
-      message_id:    '<20150830145601.30.608882@edenhofer.zammad.com>',
-      body:          'some message article',
-      internal:      false,
-      sender:        Ticket::Article::Sender.lookup(name: 'Agent'),
-      type:          Ticket::Article::Type.lookup(name: 'email'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-
-    email_raw_string_subject = "From: me@example.com
-To: customer@example.com
-Subject: #{ticket.subject_build('some new subject')}
-
-Some Text"
-
-    email_raw_string_other_subject = "From: me@example.com
-To: customer@example.com
-Subject: other subject #{Setting.get('ticket_hook')}#{ticket.number}
-
-Some Text"
-
-    email_raw_string_body = "From: me@example.com
-To: customer@example.com
-Subject: no reference
-
-Some Text #{ticket.subject_build('some new subject')} "
-
-    email_raw_string_attachment = "From: me@example.com
-Content-Type: multipart/mixed; boundary=\"Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2\"
-Subject: no reference
-Date: Sun, 30 Aug 2015 23:20:54 +0200
-To: Martin Edenhofer <me@znuny.com>
-Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\))
-X-Mailer: Apple Mail (2.2104)
-
-
---Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2
-Content-Transfer-Encoding: 7bit
-Content-Type: text/plain;
-  charset=us-ascii
-
-no reference
---Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2
-Content-Disposition: attachment;
-  filename=test1.txt
-Content-Type: text/plain;
-  name=\"test.txt\"
-Content-Transfer-Encoding: 7bit
-
-Some Text #{ticket.subject_build('some new subject')}
-
---Apple-Mail=_ED77AC8D-FB6F-40E5-8FBE-D41FF5E1BAF2--"
-
-    email_raw_string_references1 = "From: me@example.com
-To: customer@example.com
-Subject: no reference
-In-Reply-To: <20150830145601.30.608882@edenhofer.zammad.com>
-References: <DA918CD1-BE9A-4262-ACF6-5001E59291B6@znuny.com>
-
-no reference "
-
-    email_raw_string_references2 = "From: me@example.com
-To: customer@example.com
-Subject: no reference
-References: <DA918CD1-BE9A-4262-ACF6-5001E59291B6@znuny.com> <20150830145601.30.608882@edenhofer.zammad.com> <DA918CD1-BE9A-4262-ACF6-5001E59291XX@znuny.com>
-
-no reference "
-
-    setting_orig = Setting.get('postmaster_follow_up_search_in')
-    Setting.set('postmaster_follow_up_search_in', %w[body attachment references])
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_other_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_body)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_attachment)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references1)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references2)
-    assert_equal(ticket.id, ticket_p.id)
-
-    Setting.set('postmaster_follow_up_search_in', nil)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_other_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_body)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_attachment)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references1)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references2)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    Setting.set('postmaster_follow_up_search_in', 'references')
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_other_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_body)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_attachment)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references1)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references2)
-    assert_equal(ticket.id, ticket_p.id)
-
-    Setting.set('postmaster_follow_up_search_in', setting_orig)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_other_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_body)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_attachment)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references1)
-    assert_not_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_references2)
-    assert_not_equal(ticket.id, ticket_p.id)
-    travel_back
-  end
-
-  test 'process with follow up check with different ticket hook' do
-
-    Setting.set('ticket_hook', 'VD-Ticket#')
-
-    ticket = Ticket.create(
-      title:         'follow up check ticket hook',
-      group:         Group.lookup(name: 'Users'),
-      customer_id:   2,
-      state:         Ticket::State.lookup(name: 'new'),
-      priority:      Ticket::Priority.lookup(name: '2 normal'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-    article = Ticket::Article.create(
-      ticket_id:     ticket.id,
-      from:          'some_sender@example.com',
-      to:            'some_recipient@example.com',
-      subject:       'follow up check',
-      message_id:    '<20150830145601.30.608882.123123@edenhofer.zammad.com>',
-      body:          'some message article',
-      internal:      false,
-      sender:        Ticket::Article::Sender.lookup(name: 'Agent'),
-      type:          Ticket::Article::Type.lookup(name: 'email'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-
-    email_raw_string_subject = "From: me@example.com
-To: customer@example.com
-Subject: #{ticket.subject_build('some new subject')}
-
-Some Text"
-
-    email_raw_string_other_subject = "From: me@example.com
-To: customer@example.com
-Subject: Aw: RE: other subject [#{Setting.get('ticket_hook')}#{ticket.number}]
-
-Some Text"
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel 1.second
-    ticket_p, article_p, user_p = Channel::EmailParser.new.process({}, email_raw_string_other_subject)
-    assert_equal(ticket.id, ticket_p.id)
-
-    travel_back
-  end
-
-  test 'process with follow up check with two external reference headers' do
-
-    Setting.set('postmaster_follow_up_search_in', %w[body attachment references])
-
-    data1 = "From: me@example.com
-To: z@example.com
-Subject: test 123
-Message-ID: <9d16181c-2db2-c6c1-ff7f-41f2da4e289a@linuxhotel.de>
-
-test 123
-"
-    ticket_p1, article_p1, user_p1 = Channel::EmailParser.new.process({}, data1)
-
-    travel 1.second
-
-    data1 = "From: me@example.com
-To: z@example.com
-Subject: test 123
-Message-ID: <9d16181c-2db2-c6c1-ff7f-41f2da4e289a@linuxhotel.de>
-
-test 123
-"
-    ticket_p2, article_p2, user_p2 = Channel::EmailParser.new.process({}, data1)
-    assert_not_equal(ticket_p1.id, ticket_p2.id)
-
-    data2 = "From: you@example.com
-To: y@example.com
-Subject: RE: test 123
-Message-ID: <oknn9teOke2uqbFQdGj2umXUwTkqgu0CqWHkA6V4K8p@akmail>
-References: <9d16181c-2db2-c6c1-ff7f-41f2da4e289a@linuxhotel.de>
-
-test 123
-"
-    ticket_p3, article_p3, user_p3 = Channel::EmailParser.new.process({}, data2)
-
-    assert_equal(ticket_p2.id, ticket_p3.id)
-
-    travel_back
-  end
-
-  test 'process with follow up check - with auto responses and no T# in subject_build' do
-
-    ticket = Ticket.create(
-      title:         'follow up - with references follow up check',
-      group:         Group.lookup(name: 'Users'),
-      customer_id:   2,
-      state:         Ticket::State.lookup(name: 'closed'),
-      priority:      Ticket::Priority.lookup(name: '2 normal'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-    article = Ticket::Article.create(
-      ticket_id:     ticket.id,
-      from:          'some_sender@example.com',
-      to:            'some_recipient@example.com',
-      subject:       'follow up with references follow up check',
-      message_id:    '<20151222145601.30.608881@edenhofer.zammad.com>',
-      body:          'some message with references follow up check',
-      internal:      false,
-      sender:        Ticket::Article::Sender.lookup(name: 'Agent'),
-      type:          Ticket::Article::Type.lookup(name: 'email'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-    travel 1.second
-
-    # auto response without T# in subject, find follow up by references header
-    email_raw_string = "From: bob@example.com
-To: customer@example.com
-Subject: =?ISO-8859-1?Q?AUTO=3A_Bob_Smith_ist_au=DFer_Haus=2E_=2F_is_out_of?=
- =?ISO-8859-1?Q?_office=2E_=28R=FCckkehr_am_28=2E12=2E2015=29?=
-In-Reply-To: <20251222081758.116249.983698@portal.znuny.com>
-References: <OF9D1FD72A.878EF84E-ONC1257F22.003D7BB4-C1257F22.003F4503@example.com> <20151222145601.30.608881@edenhofer.zammad.com> <20251222081758.116249.983698@portal.znuny.com>
-Message-ID: <OFD563742F.FC05EEAF-ONC1257F23.002DAE02@example.com>
-Auto-Submitted: auto-replied
-
-Some Text"
-
-    ticket_p, article_p, user_p, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket = Ticket.find(ticket.id)
-    assert_equal(ticket.id, ticket_p.id)
-    assert_equal('open', ticket.state.name)
-    travel_back
-  end
-
-  test 'process with follow up check - email with more forgein T#\'s in subject' do
-
-    ticket = Ticket.create(
-      title:         'email with more forgein T#\'s in subject',
-      group:         Group.lookup(name: 'Users'),
-      customer_id:   2,
-      state:         Ticket::State.lookup(name: 'closed'),
-      priority:      Ticket::Priority.lookup(name: '2 normal'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-    article = Ticket::Article.create(
-      ticket_id:     ticket.id,
-      from:          'some_sender@example.com',
-      to:            'some_recipient@example.com',
-      subject:       'follow up with references follow up check',
-      message_id:    '<20151222145601.30.608881@edenhofer.zammad.com>',
-      body:          'some message with references follow up check',
-      internal:      false,
-      sender:        Ticket::Article::Sender.lookup(name: 'Agent'),
-      type:          Ticket::Article::Type.lookup(name: 'email'),
-      updated_by_id: 1,
-      created_by_id: 1,
-    )
-    travel 1.second
-
-    system_id           = Setting.get('system_id')
-    ticket_hook         = Setting.get('ticket_hook')
-    ticket_hook_divider = Setting.get('ticket_hook_divider')
-
-    tn = "[#{ticket_hook}#{ticket_hook_divider}#{system_id}#{Ticket::Number.generate}99]"
-
-    email_raw_string_subject = "From: me@example.com
-To: customer@example.com
-Subject: First foreign Tn #{tn} #{tn} #{tn} - #{ticket.subject_build('some new subject')}
-
-Some Text"
-
-    ticket_p, article_p, user_p, mail = Channel::EmailParser.new.process({}, email_raw_string_subject)
-    ticket = Ticket.find(ticket.id)
-    assert_equal(ticket.id, ticket_p.id)
-    assert_equal('open', ticket.state.name)
-    travel_back
-  end
-
-  test 'process with follow up check - ticket initiated by customer without T# in subject and other people in Cc reply to all' do
-
-    # check if follow up based on inital system sender address
-    Setting.set('postmaster_follow_up_search_in', [])
-
-    subject = "ticket initiated by customer without T# in subject and other people in Cc reply to all #{rand(9999)}"
-
-    email_raw_string = "From: me@example.com
-To: my@system.test, bob@example.com
-Subject: #{subject}
-Message-ID: <123456789-$follow-up-test§-1@linuxhotel.de>
-
-Some Text"
-
-    ticket_p1, article_1, user_1, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket1 = Ticket.find(ticket_p1.id)
-    assert_equal(subject, ticket1.title)
-
-    # follow up possible because same subject
-    email_raw_string = "From: bob@example.com
-To: my@system.test, me@example.com
-Subject: AW: #{subject}
-Message-ID: <123456789-$follow-up-test§-2@linuxhotel.de>
-References: <123456789-$follow-up-test§-1@linuxhotel.de>
-
-Some Text"
-
-    ticket_p2, article_p2, user_p2, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket2 = Ticket.find(ticket_p2.id)
-    assert_equal(ticket1.id, ticket2.id)
-    assert_equal(subject, ticket2.title)
-
-    # follow up possible because same subject
-    email_raw_string = "From: bob@example.com
-To: my@system.test, me@example.com
-Subject: AW: RE: #{subject}
-Message-ID: <123456789-$follow-up-test§-2@linuxhotel.de>
-References: <123456789-$follow-up-test§-1@linuxhotel.de>
-
-Some Text"
-
-    ticket_p3, article_p3, user_p3, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket3 = Ticket.find(ticket_p3.id)
-    assert_equal(ticket1.id, ticket3.id)
-    assert_equal(subject, ticket3.title)
-
-    # follow up not possible because subject has changed
-    subject = "new subject without ticket ref #{rand(9_999_999)}"
-    email_raw_string = "From: bob@example.com
-To: my@system.test
-Subject: #{subject}
-Message-ID: <123456789-$follow-up-test§-3@linuxhotel.de>
-References: <123456789-$follow-up-test§-1@linuxhotel.de>
-
-Some Text"
-
-    ticket_p4, article_p4, user_p4, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket4 = Ticket.find(ticket_p4.id)
-    assert_not_equal(ticket1.id, ticket4.id)
-    assert_equal(subject, ticket4.title)
-
-    # usecase with same subject but no Ticket# (reference headers check because of same subject)
-    subject = 'Embedded Linux 20.03 - 23.03.17'
-
-    email_raw_string = "From: iw@example.com
-To: customer@example.com
-Subject: #{subject}
-Message-ID: <b1a84d36-4475-28e8-acde-5c18ebe94182@example.com>
-
-Some Text"
-
-    ticket_p5, article_5, user_5, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket5 = Ticket.find(ticket_p5.id)
-    assert_not_equal(ticket1.id, ticket5.id)
-    assert_equal(subject, ticket5.title)
-
-    email_raw_string = "From: customer@example.com
-To: iw@example.com
-Subject: Re:  #{subject}
-Message-ID: <b1a84d36-4475-28e8-acde-5c18ebe94183@customer.example.com>
-In-Reply-To: <b1a84d36-4475-28e8-acde-5c18ebe94182@example.com>
-
-Some other Text"
-
-    ticket_p6, article_6, user_6, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket6 = Ticket.find(ticket_p6.id)
-    assert_equal(ticket5.id, ticket6.id)
-    assert_equal(subject, ticket6.title)
-
-  end
-
-  test 'process with follow up check - with none ticket# in subject' do
-
-    Setting.set('postmaster_follow_up_search_in', [])
-    Setting.set('ticket_hook_position', 'none')
-
-    subject = 'some title'
-    email_raw_string = "From: me@example.com
-To: bob@example.com
-Subject: #{subject}
-Message-ID: <123456789-follow-up-test-ticket_hook_position-none@linuxhotel.de>
-
-Some Text"
-
-    ticket_p1, article_1, user_1, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket1 = Ticket.find(ticket_p1.id)
-    assert_equal(subject, ticket1.title)
-
-    # follow up possible because same subject
-    subject = 'new subject lalala'
-    email_raw_string = "From: bob@example.com
-To: me@example.com
-Subject: AW: #{subject}
-Message-ID: <123456789-follow-up-test-ticket_hook_position-none-2@linuxhotel.de>
-References: <123456789-follow-up-test-ticket_hook_position-none@linuxhotel.de>
-
-Some Text"
-
-    ticket_p2, article_p2, user_p2, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    ticket2 = Ticket.find(ticket_p2.id)
-    assert_equal(ticket1.id, ticket2.id)
-  end
-
-  test 'process with follow up check - in body' do
-
-    Setting.set('postmaster_follow_up_search_in', %w[body attachment references])
-    Setting.set('ticket_hook', '#')
-
-    email_raw_string = "From: me@example.com
-To: bob@example.com
-Subject: some subject
-
-Some Text"
-
-    ticket_p1, article_1, user_1, mail = Channel::EmailParser.new.process({}, email_raw_string)
-
-    email_raw_string = "From: me@example.com
-To: bob@example.com
-Subject: some subject
-
-Some Text #{Setting.get('ticket_hook')}#{ticket_p1.number} asdasd"
-
-    ticket_p2, article_2, user_2, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    assert_equal(ticket_p1.id, ticket_p2.id)
-
-    email_raw_string = "From: me@example.com
-To: bob@example.com
-Subject: some subject
-Content-Transfer-Encoding: 7bit
-Content-Type: text/html;
-
-<b>Some Text #{Setting.get('ticket_hook')}#{ticket_p1.number}</b>
-"
-
-    ticket_p3, article_3, user_3, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    assert_equal(ticket_p1.id, ticket_p3.id)
-
-    email_raw_string = "From: me@example.com
-To: bob@example.com
-Subject: some subject
-Content-Transfer-Encoding: 8bit
-Content-Type: text/html;
-
-<b>Some Text <span color=\"#{Setting.get('ticket_hook')}#{ticket_p1.number}\">test</span></b>
-"
-
-    ticket_p4, article_4, user_4, mail = Channel::EmailParser.new.process({}, email_raw_string)
-    assert_not_equal(ticket_p1.id, ticket_p4.id)
-
-  end
-end