# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/ # frozen_string_literal: true require 'rails_helper' RSpec.describe String do describe '#strip' do context 'default behavior' do it 'removes leading/trailing spaces' do expect(' test '.strip).to eq('test') end it 'removes trailing newlines' do expect("test\n".strip).to eq('test') end it 'does not remove internal spaces / newlines' do expect("test \n test".strip).to eq("test \n test") end end context 'monkey-patched behavior' do it 'removes leading/trailing zero-width spaces, but not internal ones' do expect(" \r\n test \u{200B} \n test\u{200B} \u{200B}".strip) .to eq("test \u{200B} \n test") end it 'does not break on non-unicode strings' do expect(described_class.new("\xC2\xA92011 Z ", encoding: 'ASCII-8BIT').strip) .to eq(described_class.new("\xC2\xA92011 Z", encoding: 'ASCII-8BIT')) end end end describe '#strip!' do context 'default behavior' do it 'removes leading/trailing spaces (in place)' do str = +' test ' expect(str.strip!).to be(str).and eq('test') end it 'removes trailing newlines (in place)' do str = +"test\n" expect(str.strip!).to be(str).and eq('test') end it 'does not remove internal spaces / newlines (in place)' do str = +"test \n test " expect(str.strip!).to be(str).and eq(str) end end context 'monkey-patched behavior' do it 'removes leading/trailing zero-width spaces, but not internal ones (in place)' do str = +" \r\n test \u{200B} \n test\u{200B} \u{200B}" expect(str.strip!).to be(str).and eq("test \u{200B} \n test") end it 'does not break on invalid-unicode strings (in place)' do str = described_class.new("\xC2\xA92011 Z ", encoding: 'ASCII-8BIT') expect(str.strip!) .to be(str).and eq(described_class.new("\xC2\xA92011 Z", encoding: 'ASCII-8BIT')) end end end describe '#to_filename' do it 'does not modify strings in place' do %w[test Some::File].each do |str| expect { str.to_filename }.not_to change { str } end end it 'leaves all-downcase strings as-is' do expect('test'.to_filename).to eq('test') end it 'converts camelcase Ruby constant paths to snakecase file paths' do expect('Some::File'.to_filename).to eq('some/file') end end describe '#to_classname' do it 'does not modify strings in place' do %w[test some/file].each do |str| expect { str.to_classname }.not_to change { str } end end it 'capitalizes all-downcase strings' do expect('test'.to_classname).to eq('Test') end it 'converts snakecase file paths to camelcase Ruby constant paths' do expect('some/file'.to_classname).to eq('Some::File') end context 'unlike ActiveSupport’s #classify' do it 'preserves pluralized names' do expect('some/files'.to_classname).to eq('Some::Files') expect('some_test/files'.to_classname).to eq('SomeTest::Files') end end end describe '#html2text' do it 'does not modify strings in place' do %w[test
test
].each do |str| expect { str.html2text }.not_to change { str } end end it 'leaves human-readable text as-is' do expect('test'.html2text).to eq('test') end it 'strips leading/trailing spaces' do expect(' test '.html2text).to eq('test') end it 'also strips leading/trailing newlines' do expect("\n\n test \n\n\n".html2text).to eq('test') end it 'strips HTML tags around text content' do expect('
test
'.html2text).to eq('test') end it 'strips trailing
inside last
' do expect('
test
'.html2text).to eq('test') end it 'strips trailing
and newlines inside last
' do expect("
test


\n
\n
\n
".html2text).to eq('test') end it 'strips trailing
, newlines, and spaces inside last
' do expect("
test


\n
\n
\n
".html2text).to eq('test') end it 'strips trailing
, newlines, and   inside last
' do expect("
test

 
 \n
 \n
 \n
".html2text).to eq('test') end it 'strips trailing whitespace (including   &
) both inside and after last tag' do expect("
test

 
 \n
 \n
 \n
 ".html2text).to eq('test') end it 'also strips nested HTML tags' do expect("

Was\nsoll verbessert werden:

".html2text) .to eq('Was soll verbessert werden:') end it 'in 
 elements, collapses multiple newlines into one' do
      expect("
test\n\ntest
".html2text).to eq("test\ntest")
    end

    it 'in  elements, collapses multiple newlines into one' do
      expect("test\n\ntest".html2text).to eq("test\ntest")
    end

    it 'converts  cells and row to space-separated lines' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
testcol
test4711

      HTML
        test col
        test 4711
      TEXT
    end

    it 'strips HTML comments' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
        

        test



        

        


        

      HTML
        test
      TEXT
    end

    it 'converts  elements to plain text with numerical references' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)

        
Best Tool of the World
        some other text

        

      HTML
        [1] Best Tool of the Worldsome other text

        [1] https://zammad.org
      TEXT
    end

    it 'converts 
 elements to separate paragraphs containing only "___"' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
        

        test



        

        


        

      HTML
        test

        ___
      TEXT
    end

    it 'converts 
 elements to newlines (max. 2)' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        test


--
abc

      HTML
        test

        --
        abc
      TEXT
    end

    it 'strips Microsoft Outlook conditional comments' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        Ihr RZ-Team

        

        
      HTML
        Ihr RZ-Team
      TEXT
    end

    it 'strips  elements' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
        
        Neues Fax von 1234-93900
        
        
        
        HTML
          
        TEXT
      end

      it 'handles sample input 11' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
Dear Bob:Mr/Mrs

We are one of the leading manufacturer and supplier of conduits and cars since 3000.

Could you inform me the specification you need?

May I sent you our products catalogues for your reference?

Best regards!

Welcome to our booth B11/1 Hall 13 during SOMEWHERE\n9999.
Bob Smith
Exp. & Imp.
Town Example Electric Co., Ltd.
Tel: 0000-11-12345678 (Ext-220)  Fax: 0000-11-12345678 
Room1234, NO. 638, Smith Road, Town, 200000, Somewhere
Web: www.example.com

        HTML
          
\n
Dear Bob:Mr/Mrs
          
 
We are one of the leading manufacturer and supplier of conduits and cars since 3000.
 
Could you inform me the specification you need?
 
May I sent you our products catalogues for your reference?
 
Best regards!
 
Welcome to our booth B11/1 Hall 13 during SOMEWHERE 9999.
\n
Bob Smith
\n
Exp. & Imp.
Town Example Electric Co., Ltd.
Tel: 0000-11-12345678 (Ext-220) Fax: 0000-11-12345678
Room1234, NO. 638, Smith Road, Town, 200000, Somewhere
Web: www.example.com

        TEXT
      end

      it 'handles sample input 12' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
  • Luxemburg
    • 
        HTML
          
  • Luxemburg
    • 
        TEXT
      end
    end

    context 'signature recognition' do
      let(:marker) { '' }

      it 'places marker before "--" line (surrounded by 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          lalala
    --
    Max Mix
        HTML
          lalala#{marker}
    --
    Max Mix
        TEXT
      end

      it 'places marker before "--" line (surrounded by 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          lalala
    --
    Max Mix
        HTML
          lalala#{marker}
    --
    Max Mix
        TEXT
      end

      it 'places marker before "--" line (preceded by 
    \n)' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          lalala
    
          --
    Max Mix
        HTML
          lalala#{marker}
     --
    Max Mix
        TEXT
      end

      it 'places marker before "--" line (surrounded by 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          lalala
    --
    Max Mix
        HTML
          lalala#{marker}
    --
    Max Mix
        TEXT
      end

      it 'places marker before "__" line (surrounded by 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          lalala
    __
    Max Mix
        HTML
          lalala#{marker}
    __
    Max Mix
        TEXT
      end

      it 'places marker before quoted reply’s "Von:" header (in German)' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          den.

    Von: Fritz Bauer [mailto:me@example.com]
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's

    Hello,

    ich versuche an den Punkten
        HTML
          den.
    #{marker}
    Von: Fritz Bauer [mailto:me@example.com]
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's

    Hello,

    ich versuche an den Punkten
        TEXT
      end

      it 'places marker before quoted reply’s "Von:" header (as 
     with stripped parent 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Von: Martin Edenhofer via Zammad Helpdesk [mailto:support@zammad.com] 
    Gesendet:\u0020
        HTML
          
    #{marker}
    Von: Martin Edenhofer via Zammad Helpdesk [mailto:support@zammad.com] 
    Gesendet: 
    
        TEXT
      end

      it 'places marker before quoted reply’s "Von:" header (as 
     with parent 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    
          
    Von:
          Johanna Kiefer via Znuny Projects <projects@example.com>
    
          Organisation: Znuny Group
    
          Datum: Montag, 6. März 2017 um 13:32
    
        HTML
          
    
          #{marker}
    Von: Johanna Kiefer via Znuny Projects <projects@example.com>
    
          Organisation: Znuny Group
    
          Datum: Montag, 6. März 2017 um 13:32
    
        TEXT
      end

      it 'places marker before quoted reply’s "Von:" header (as 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          

    
          
    
          
    Von:      
           Hotel <info@example.com>
          
    An:      
           
    
        HTML
          #{marker}

    Von: Hotel <info@example.com> 
    An: 
    
        TEXT
      end

      it 'places marker before English quoted text intro (as 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    On 04 Mar 2017, at 14:47, Oliver Ruhm <oliver@example.com> wrote:

    
        HTML
          
    #{marker}
    
          
    On 04 Mar 2017, at 14:47, Oliver Ruhm <oliver@example.com> wrote:

    
          
    
        TEXT
      end

      it 'does not place marker if blockquote doesn’t contain a quoted text intro' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    some note

    
        HTML
          
    
          
    some note

    
          
    
        TEXT
      end

      it 'does not place marker if quoted text intro isn’t followed by a 
    ' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    
          
     Am 17.03.2017 um 17:03 schrieb Martin Edenhofer via Zammad Helpdesk <support@example.com>:
    
          
    
          
    
        HTML
          
    
          
     Am 17.03.2017 um 17:03 schrieb Martin Edenhofer via Zammad Helpdesk <support@example.com>:
    
          
    
          
    
        TEXT
      end

      it 'places marker before German quoted text intro (before 
    )' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    
          
     Am 17.03.2017 um 17:03 schrieb Martin Edenhofer via Zammad Helpdesk <support@example.com>:
    
          
    
          
    

          
    
          
    Dear Mr. Smith,
    
          
    
        HTML
          #{marker}
    
          
     Am 17.03.2017 um 17:03 schrieb Martin Edenhofer via Zammad Helpdesk <support@example.com>:
    
          
    
          
    
          
    Dear Mr. Smith,
    
          
    
        TEXT
      end
    end
  end

  describe '#signature_identify' do
    let(:marker) { '######SIGNATURE_MARKER######' }

    context 'with no signature present' do
      it 'leaves string as-is' do
        expect((+'foo').signature_identify('text', true)).to eq('foo')
      end
    end

    context 'with signature present' do
      it 'places marker at start of "--" line' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          foo
          --
          bar
        SRC
          foo
          #{marker}--
          bar
        MARKED
      end

      it 'places marker before English quoted text intro' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          On 01/04/15 10:55, Bob Smith wrote:
        SRC
          #{marker}On 01/04/15 10:55, Bob Smith wrote:
        MARKED
      end

      it 'places marker before German quoted text intro' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          Am 03.04.2015 um 20:58 schrieb Martin Edenhofer :
        SRC
          #{marker}Am 03.04.2015 um 20:58 schrieb Martin Edenhofer :
        MARKED
      end

      it 'ignores trailing empty line' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          test 123
          test 123
          --
          Bob Smith

        SRC
          test 123
          test 123
          #{marker}--
          Bob Smith

        MARKED
      end

      it 'ignores trailing double empty lines' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          test 123
          test 123
          --
          Bob Smith


        SRC
          test 123
          test 123
          #{marker}--
          Bob Smith


        MARKED
      end

      it 'ignores leading/trailing empty lines' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)

          test 123\u0020
          1
          2
          3
          4
          5
          6
          7
          8
          9
          --
          Bob Smith

        SRC

          test 123\u0020
          1
          2
          3
          4
          5
          6
          7
          8
          9
          #{marker}--
          Bob Smith

        MARKED
      end

      it 'ignores lines starting with "--" but containing more text' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          test 123\u0020
          --no not match--
          --
          Bob Smith

        SRC
          test 123\u0020
          --no not match--
          #{marker}--
          Bob Smith

        MARKED
      end

      it 'places marker at start of " -- " line' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          test 123\u0020
          --no not match--
           --\u0020
          Bob Smith

        SRC
          test 123\u0020
          --no not match--
          #{marker} --\u0020
          Bob Smith

        MARKED
      end

      it 'places marker on empty line if possible / only places one marker' do
        expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
          test 123\u0020

          --
          Bob Smith




          --
          Bob Smith

        SRC
          test 123\u0020
          #{marker}
          --
          Bob Smith




          --
          Bob Smith

        MARKED
      end

      context 'for Apple email quote text' do
        context 'in English' do
          it 'places two markers, one before quoted text intro and one at start of "--" line' do
            expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
              test 123\u0020
              --no not match--
              Bob Smith
              On 01/04/15 10:55, Bob Smith wrote:
              lalala
              --
              some test
            SRC
              test 123\u0020
              --no not match--
              Bob Smith
              #{marker}On 01/04/15 10:55, Bob Smith wrote:
              lalala
              #{marker}--
              some test
            MARKED
          end
        end

        context 'auf Deutsch' do
          it 'places marker before quoted text intro' do
            expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
              test 123\u0020

              --no not match--

              Bob Smith
              Am 03.04.2015 um 20:58 schrieb Bob Smith :
              lalala
            SRC
              test 123\u0020

              --no not match--

              Bob Smith
              #{marker}Am 03.04.2015 um 20:58 schrieb Bob Smith :
              lalala
            MARKED
          end
        end
      end

      context 'for MS email quote text' do
        context 'in English' do
          it 'places marker before quoted text intro' do
            expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
              test 123test 123\u0020

              --no not match--

              Bob Smith
              From: Martin Edenhofer via Znuny Support [mailto:support@znuny.inc]
              Sent: Donnerstag, 2. April 2015 10:00
              lalala
    
            SRC
              test 123test 123\u0020

              --no not match--

              Bob Smith
              #{marker}From: Martin Edenhofer via Znuny Support [mailto:support@znuny.inc]
              Sent: Donnerstag, 2. April 2015 10:00
              lalala
    
            MARKED
          end
        end

        context 'auf Deutsch' do
          it 'places marker before quoted text intro' do
            expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)
              test 123\u0020

              --no not match--

              Bob Smith
              Von: Martin Edenhofer via Znuny Support [mailto:support@znuny.inc]
              Gesendet: Donnerstag, 2. April 2015 10:00
              Betreff: lalala

            SRC
              test 123\u0020

              --no not match--

              Bob Smith
              #{marker}Von: Martin Edenhofer via Znuny Support [mailto:support@znuny.inc]
              Gesendet: Donnerstag, 2. April 2015 10:00
              Betreff: lalala

            MARKED
          end
        end

        context 'en francais' do
          it 'places marker before quoted text intro' do
            expect(<<~SRC.chomp.signature_identify('text', true)).to eq(<<~MARKED.chomp)

              test 123\u0020

              --no not match--

              Bob Smith
              De : Martin Edenhofer via Znuny Support [mailto:support@znuny.inc]
              Envoyé : mercredi 29 avril 2015 17:31
              Objet : lalala

            SRC

              test 123\u0020

              --no not match--

              Bob Smith
              #{marker}De : Martin Edenhofer via Znuny Support [mailto:support@znuny.inc]
              Envoyé : mercredi 29 avril 2015 17:31
              Objet : lalala

            MARKED
          end
        end
      end
    end
  end

  describe '#utf8_encode' do
    context 'on valid, UTF-8-encoded strings' do
      subject(:string) { 'hello' }

      it 'returns an identical copy' do
        expect(string.utf8_encode).to eq(string)
        expect(string.utf8_encode.encoding).to be(string.encoding)
        expect(string.utf8_encode).not_to be(string)
      end

      context 'which are incorrectly set to other, technically valid encodings' do
        subject(:string) { described_class.new('ö', encoding: 'tis-620') }

        it 'sets input encoding to UTF-8 instead of attempting conversion' do
          expect(string.utf8_encode).to eq(string.dup.force_encoding('utf-8'))
        end
      end
    end

    context 'on strings in other encodings' do
      subject(:string) { original_string.encode(input_encoding) }

      context 'with no from: option' do
        let(:original_string) { 'Tschüss!' }
        let(:input_encoding) { Encoding::ISO_8859_2 }

        it 'detects the input encoding' do
          expect(string.utf8_encode).to eq(original_string)
        end
      end

      context 'with a valid from: option' do
        let(:original_string) { 'Tschüss!' }
        let(:input_encoding) { Encoding::ISO_8859_2 }

        it 'uses the specified input encoding' do
          expect(string.utf8_encode(from: 'iso-8859-2')).to eq(original_string)
        end

        it 'uses any valid input encoding, even if not correct' do
          expect(string.utf8_encode(from: 'gb18030')).to eq('Tsch黶s!')
        end
      end

      context 'with an invalid from: option' do
        let(:original_string) { '―陈志' }
        let(:input_encoding) { Encoding::GB18030 }

        it 'does not try it' do
          expect { string.encode('utf-8', 'gb2312') }
            .to raise_error(Encoding::InvalidByteSequenceError)

          expect { string.utf8_encode(from: 'gb2312') }
            .not_to raise_error
        end

        it 'uses the detected input encoding instead' do
          expect(string.utf8_encode(from: 'gb2312')).to eq(original_string)
        end
      end
    end

    context 'performance' do
      subject(:string) { original_string.encode(input_encoding) }

      context 'with utf8_encode in iso-8859-1' do
        let(:original_string) { 'äöü0' * 999_999 }
        let(:input_encoding) { Encoding::ISO_8859_1 }

        it 'detects the input encoding' do
          Timeout.timeout(1) do
            expect(string.utf8_encode(from: 'iso-8859-1')).to eq(original_string)
          end
        end
      end

      context 'with utf8_encode in utf-8' do
        let(:original_string) { 'äöü0' * 999_999 }
        let(:input_encoding) { Encoding::UTF_8 }

        it 'detects the input encoding' do
          Timeout.timeout(1) do
            expect(string.utf8_encode(from: 'utf-8')).to eq(original_string)
          end
        end
      end

      context 'with utf8_encode in iso-8859-1 and charset detection' do
        let(:original_string) { 'äöü0' * 199_999 }
        let(:input_encoding) { Encoding::ISO_8859_1 }

        it 'detects the input encoding' do
          Timeout.timeout(18) do
            expect(string.utf8_encode(from: 'utf-8')).to eq(original_string)
          end
        end
      end
    end
  end
end

    
        
    
        
        
    
        

    
        
      HTML
        Neues Fax von 1234-93900

         Neues Fax

         Ihre Kundennummer: 12345678
      TEXT
    end

    it 'converts characters written in HTML ampersand code' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        line 1
    
        you
    
        -----&
      HTML
        line\u00A01
        you
        -----&
      TEXT
    end

    it 'converts 
       to asterisk-demarcated list' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        \u0020
      • #1
      • #2
      
      HTML
        * #1
        * #2
      TEXT
    end

    it 'strips HTML frontmatter and  element' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
        
          
            
          
          
            
      > Welcome!
      >
      > Thank you for installing Zammad.
      >
      
          
        
      HTML
        > Welcome!
        >
        > Thank you for installing Zammad.
        >
      TEXT
    end

    it 'strips 
      some other content
      
      HTML
        some other content
      TEXT
    end

    it 'strips  elements' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        \u0020       IT-Infrastruktur
      
              
              
              
              
      HTML
        IT-Infrastruktur
      TEXT
    end

    it 'separates block-level elements by one newline (
       following a non-
       block gets two)' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
      some head
      
        some content
        
      
        
      line 1
      
        
      line 2
      
        
      
        
      some text later
      
      HTML
        some head
        some content
        > line 1
        > line 2

        some text later
      TEXT
    end

    it 'formats 
       contents with leading "> "' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
      some head
      
        some content
        
      
        line 1
      
        line 2
      
        
      
        
      some text later
      
      HTML
        some head
        some content
        > line 1
        > line 2

        some text later
      TEXT
    end

    it 'adds max. 2 newlines between block-level 
       contents' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
      some head
      
        some content
        
      
        
      line 1

      
        
      line 2

      
        
      
        some text later
      HTML
        some head
        some content
        > line 1
        >
        > line 2
        some text later
      TEXT
    end

    it 'places numerical  references at end of text string' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        
      Best regards,
      
        
      Your Team Team
      
        
      P.S.: You receive this e-mail because you are listed in our database as person who ordered a Team license. Please click
        here to unsubscribe from further e-mails.
      
        -----------------------------
        
      
      HTML
        Best regards,
        Your Team Team
        P.S.: You receive this e-mail because you are listed in our database as person who ordered a Team license. Please click [1] here to unsubscribe from further e-mails.
        -----------------------------

        [1] http://www.teamviewer.example/en/company/unsubscribe.aspx?id=1009645&ident=xxx
      TEXT
    end

    it 'handles elements with missing closing tags' do
      expect(<<~HTML.chomp.html2text).to eq(<<~TEXT.chomp)
        

      Dave and leaned her
        days adam.
      Maybe we
        want any help me that.
      Next morning charlie saw at their
        father.
      Well as though adam took out here. Melvin will be more money.\u0020
        Called him into this one last thing.
      Men-----------------------
        
      
      HTML
        Dave and leaned her days adam.
        Maybe we want any help me that.
        Next morning charlie saw at their father.
        Well as though adam took out here. Melvin will be more money. Called him into this one last thing.
        Men-----------------------
      TEXT
    end

    context 'html encoding' do
      it 'converts Ä in Ä' do
        expect('
      test something.Ä
      '.html2text)
          .to eq('test something.Ä')
      end

      it 'strips invalid html encoding chars' do
        expect('
      test something.�
      '.html2text)
          .to eq('test something.í ˝')
      end
    end

    context 'performance tests' do
      let(:filler) do
        %(#{%(
      some word some url and the end.
      \n) * 11}\n)
      end

      it 'converts a 1076-byte unicode file in under 2s' do
        expect { Timeout.timeout(2) { <<~HTML.chomp.html2text } }.not_to raise_error
          
          some title
          

          
      hello
      

          #{filler}
          
          
        HTML
      end

      it 'converts a 2.21 MiB unicode file in under 2s' do
        expect { Timeout.timeout(2) { <<~HTML.chomp.html2text } }.not_to raise_error
          
          some title
          

          
      hello
      

          #{filler * 2312}
          
          
        HTML
      end

    end
  end

  describe '#html2html_strict' do
    it 'leaves human-readable text as-is' do
      expect('test'.html2html_strict).to eq('test')
    end

    it 'strips leading/trailing spaces' do
      expect('  test '.html2html_strict).to eq('test')
    end

    it 'also strips leading/trailing newlines' do
      expect("\n\n  test \n\n\n".html2html_strict).to eq('test')
    end

    it 'also strips leading 
      ' do
      expect('

      abc
      '.html2html_strict).to eq('
      abc
      ')
    end

    it 'also strips trailing 
       & spaces' do
      expect('
      abc

       
      '.html2html_strict).to eq('
      abc
      ')
    end

    it 'leaves  as-is' do
      expect('test'.html2html_strict).to eq('test')
    end

    it 'downcases tag names' do
      expect('test'.html2html_strict).to eq('test')
    end

    it 'leaves  as-is' do
      expect('test'.html2html_strict).to eq('test')
    end

    it 'leaves 
       as-is' do
      expect('
      test
      '.html2html_strict).to eq('
      test
      ')
    end

    it 'leaves 
       as-is' do
      expect('
      test
      '.html2html_strict).to eq('
      test
      ')
    end

    it 'leaves 
       as-is' do
      expect('
      test
      '.html2html_strict).to eq('
      test
      ')
    end

    it 'leaves 
       as-is' do
      expect("
      a\nb\nc
      ".html2html_strict).to eq("
      a\nb\nc
      ")
    end

    it 'leaves 
       nested inside 
       as-is' do
      expect("
      a\nb\nc
      ".html2html_strict).to eq("
      a\nb\nc
      ")
    end

    it 'strips HTML comments' do
      expect('
      test
      '.html2html_strict).to eq('
      test
      ')
    end

    it 'strips / tags &  elements' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
      Hello Martin,
      
      HTML
        
      Hello Martin,
      
      TEXT
    end

    it 'strips  tags' do
      expect(''.html2html_strict).to eq('')
    end

    it 'keeps style with color in ' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        Hello Martin,
      HTML
        Hello Martin,
      TEXT
    end

    it 'remove style=#ffffff with color in ' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        Hello Martin,
      HTML
        Hello Martin,
      TEXT
    end

    it 'strips  tags, id/class attrs, and  (MS Office) tags' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
      
        
      Guten Morgen, Frau Koppenhagen,
      
        
       
      
        
      vielen Dank für die Reservierung. Dabei allerdings die Sprache (Niederländisch) nicht erwähnt. Können Sie bitte dieses in Ihrer Reservierung vormerken?
      
        
       
      
        
      Nochmals vielen Dank und herzliche Grüße
        
      
        
      
      HTML
        
      
        
      Guten Morgen, Frau Koppenhagen,
       
      vielen Dank für die Reservierung. Dabei allerdings die Sprache (Niederländisch) nicht erwähnt. Können Sie bitte dieses in Ihrer Reservierung vormerken?
       
      Nochmals vielen Dank und herzliche Grüße 
      
      TEXT
    end

    it 'strips  tags' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
      
      HTML
        
      
      TEXT
    end

    it 'strips extraneous whitespace from end of opening tag' do
      expect('test'.html2html_strict).to eq('test')
    end

    it 'strips extraneous whitespace from closing tag' do
      expect('test'.html2html_strict).to eq('test')
    end

    it 'does not detect < /b > as closing tag; converts chars and auto-closes tag' do
      expect('test< /b >'.html2html_strict).to eq('test< /b >')
    end

    it 'does not detect <\n/b> as closing tag; converts chars and auto-closes tag' do
      expect("test<\n/b>".html2html_strict).to eq('test< /b>')
    end

    it 'collapses multiple whitespace-only 
       into one with  ' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
       
       
       
      
      HTML
        
       
      
      TEXT
    end

    it 'keeps lang attr on 
      ' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
      
      HTML
        
      
      TEXT
    end

    it 'strips  inside 
      ' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
      Hello Martin,
      
      HTML
        
      Hello Martin,
      
      TEXT
    end

    it 'strips empty 
       keep 
      s with content' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
       
      123
      
      HTML
        
       
      123
      
      TEXT
    end

    it 'strips 
       between 
      ' do
      expect('
       


       
      '.html2html_strict).to eq('
       
       
      ')
    end

    it 'auto-adds missing closing brackets on tags, but not opening brackets' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        test<
        /b>
      HTML
        test< /b>
      TEXT
    end

    it 'auto-adds missing closing tags' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
      • test
        • 
        
      • test
        • <
        /ul>
      HTML
        
          
        
        • test
          • 
        
        • test
          • < /ul>
        
      TEXT
    end

    it 'auto-closes 
         with missing closing tag; removes 
         with missing opening tag' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        Damit Sie keinen Tag versäumen, empfehlen wir Ihnen den Link des Adventkalenders in
              Ihrer Lesezeichen-Symbolleiste zu ergänzen.
         
      HTML
        Damit Sie keinen Tag versäumen, empfehlen wir Ihnen den Link des Adventkalenders in
         Ihrer Lesezeichen-Symbolleiste zu ergänzen.
         
        
      TEXT
    end

    it 'intelligently inserts missing  &  tags (and ignores misplaced 
    
        
    
        
        
    
        
    
        
        
        
        
    
        
    
         
        
    
        
    
         
        Neues Fax
        
        
        
    
        
    
         
        
    
        
    
        
        
        
        
    
        
    
            		
        
    
        
    
         
        
    
        
    
         
        
        Ihre Kundennummer: 12345678
        
         
        
     tags)' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
    
        
    
        Franz Schäfer
        
    
        Manager Information Systems
    
        
    
        
    
        
    
        Telefon  
        +49 000 000 8565
        
    
        christian.schaefer@example.com
    
        
    
        
      HTML
        
    
        
    
        
        Franz Schäfer
        
        
    
        
    
        Manager Information Systems
        
    
        
    
        
    
        
    
        
    
         Telefon 
         +49 000 000 8565 
        
    
        
    
        christian.schaefer@example.com
        
    
        
    
      TEXT
    end

    it 'ignores invalid (misspelled) attrs' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        test
      HTML
        test
      TEXT
    end

    it 'strips incomplete CSS rules' do
      expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
        
    
      HTML
        
    
      TEXT
    end

    context 'for whitespace-only 
    ' do
      it 'preserves a single space' do
        expect('
     
    '.html2html_strict).to eq('
     
    ')
      end

      it 'converts a lone 
     to  ' do
        expect('

    '.html2html_strict).to eq('
     
    ')
      end

      it 'converts three 
     to one  ' do
        expect('



    '.html2html_strict).to eq('
     
    ')
      end

      it 'collapses two nested, whitespace-only 
     into a single  ' do
        expect('
     
     
    '.html2html_strict).to eq('
     
    ')
      end

      it 'collapses three nested, whitespace-only 
     into a single  ' do
        expect('
     
     
     
    '.html2html_strict).to eq('
     
    ')
      end

      it 'collapses 2+ nested, whitespace-only 
     into \n
     
    ' do
        expect('
     
     
    '.html2html_strict).to eq("
    \n
     
    ")
      end
    end

    context 'for 
     with content' do
      it 'also strips trailing/leading newlines inside 
    ' do
        expect("
    \n\n\ntest\n\n\n
    ".html2html_strict).to eq('
    test
    ')
      end

      it 'also strips trailing/leading newlines & tabs inside 
    ' do
        expect("
    \n\t\ntest\n\t\n
    ".html2html_strict).to eq('
    test
    ')
      end

      it 'also strips trailing/leading newlines & tabs inside 
    , but not internal spaces' do
        expect("
    \n\t\ntest  123\n\t\n
    ".html2html_strict).to eq('
    test 123
    ')
      end

      it 'strips newlines from trailing whitespace; leaves up to two 
     (with spaces) as-is' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    
          
     
    Description
    
          
     
     
    
        HTML
          
    
          
     
    Description

     
     
    
        TEXT
      end

      it 'strips newlines from trailing whitespace; collapses 3+ 
     into two' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    
          
     
    Description
    
          
     
     
     
    
        HTML
          
    
          
     
    Description


    
        TEXT
      end

      it 'removes unnecessary 
     nesting' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Hello Martin,
    
        HTML
          
    Hello Martin,
    
        TEXT
      end

      it 'keeps innermost 
     when removing nesting' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Hello Martin,
    
        HTML
          
    Hello Martin,
    
        TEXT
      end

      it 'keeps style with color in 
    ' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Hello Martin,
    
        HTML
          
    Hello Martin,
    
        TEXT
      end

      it 'remove style=#ffffff with color in 
    ' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Hello Martin,
    
        HTML
          
    Hello Martin,
    
        TEXT
      end

      it 'rearranges whitespace in nested 
    ' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Hello Martin,
     
    
        HTML
          
    
          
    Hello Martin,
    
        TEXT
      end

      it 'adds newline where 
     starts or ends 
     content' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          

    abc

    
        HTML
          
    
          
    abc

    
          
    
        TEXT
      end

      it 'leaves  nested in 
     as-is (?)' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    abc
    
        HTML
          
    abc
    
        TEXT
      end

      it 'collapses multiple whitespace-only 
     into one with  ' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
     
    
          
     
    
          
     
    
          
    
        HTML
          
    
          
     
    
        TEXT
      end

      it 'strips 
     tags when they contain only 
    ' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    lala
    Hello Martin,
    
        HTML
          
    lala
    Hello Martin,
    
        TEXT
      end
    end

    context 'link handling' do
      it 'adds rel & target attrs to  tags' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          web.de
        HTML
          web.de
        TEXT
      end

      it 'removes id attrs' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          web.de
        HTML
          web.de
        TEXT
      end

      it 'removes class/id attrs' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          http://example.com
        HTML
          http://example.com
        TEXT
      end

      it 'downcases  tags' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          http://example.com?a=1;
        HTML
          http://example.com?a=1;
        TEXT
      end

      it 'doesn’t downcase href attr or inner text' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          http://example.com/withSoMeUpper/And/downCase
        HTML
          http://example.com/withSoMeUpper/And/downCase
        TEXT
      end

      it 'automatically wraps  tags around valid URLs' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    https://www.facebook.com/test
    
        HTML
              
        TEXT
      end

      it 'does not wrap URLs if leading https?:// is missing' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          some text www.example.com some other text
        HTML
          some text www.example.com some other text
        TEXT
      end

      it 'adds missing http:// to href attr (but not inner text)' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          web www.example.com
        HTML
          web www.example.com
        TEXT
      end

      it 'includes URL parameters when wrapping URL in  tag' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    https://wiki.lab.example.com/doku.php?id=xxxx:start&a=1;#ldap
    
        HTML
          
    https://wiki.lab.example.com/doku.php?id=xxxx:start&a=1;#ldap
    
        TEXT
      end

      it 'does not rewrap valid URLs that already have  tags' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          http://example.com
        HTML
          http://example.com
        TEXT
      end

      it 'recognizes URL parameters when matching href to inner text' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    https://wiki.lab.example.com/doku.php?id=xxxx:start&#ldap
    
        HTML
          
    https://wiki.lab.example.com/doku.php?id=xxxx:start&#ldap
    
        TEXT
      end

      it 'recognizes 
     as URL boundary' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          

    https://www.facebook.com/test
    
        HTML
          
        TEXT
      end

      it 'recognizes space as URL boundary' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          some text http://example.com some other text
        HTML
          some text http://example.com some other text
        TEXT
      end

      it 'wraps valid URLs from 
     elements in  tags' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    http://example.com
    
        HTML
              
        TEXT
      end

      it 'recognizes trailing dot as URL boundary' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    http://example.com.
    
        HTML
          
        TEXT
      end

      it 'does not add a leading newline if 
     begins with non-URL text' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    lala http://example.com.
    
        HTML
          
        TEXT
      end

      it 'recognizes trailing comma as URL boundary' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    http://example.com, and so on
    
        HTML
          
    
          http://example.com, and so on
    
        TEXT
      end

      it 'recognizes trailing comma as URL boundary (immediately following URL parameters)' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    http://example.com?lala=me, and so on
    
        HTML
          
        TEXT
      end

      it 'strips  tags when no href is present' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          Hello Mr Smith,
        HTML
          Hello Mr Smith,
        TEXT
      end

      context 'when  inner text is HTML elements' do
        it 'leaves  elements as-is' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            
          HTML
            
          TEXT
        end

        it 'strips  tags, but not content' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            http://facebook.de/examplesrbog
          HTML
            http://facebook.de/examplesrbog
          TEXT
        end

        it 'also strips surrounding  and  tags' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            web                       
            www.example.com
          HTML
            web www.example.com
          TEXT
        end
      end

      context 'when  inner text and href do not match' do
        it 'adds title attr' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            http://what-different.example.com
          HTML
            http://what-different.example.com
          TEXT
        end

        it 'converts unsafe characters in href attr and title' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            http://what-different.example.com
          HTML
            http://what-different.example.com
          TEXT
        end

        it 'does not add title attr (for different capitalization)' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            http://EXAMPLE.com
          HTML
            http://EXAMPLE.com
          TEXT
        end

        it 'does not add title attr (for URL-safe/unsafe characters)' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            http://example.com?abc=123&123=abc
          HTML
            http://example.com?abc=123&123=abc
          TEXT
        end
      end

      context 'for email links' do
        it 'strips  tags' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            john.smith@example.com
          HTML
            john.smith@example.com
          TEXT
        end

        it 'strips  tags (even with upcased "MAILTO:")' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            john.smith@example.com
          HTML
            john.smith@example.com
          TEXT
        end

        it 'extracts destination address when it differs from  innertext' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            john.smith@example.com
          HTML
            john.smith@example.com
          TEXT
        end

      end
    end

    context 'for  tags' do
      it 'removes color CSS rule from style attr' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
        HTML
          
        TEXT
      end

      it 'converts width/height attrs to CSS rules' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
        HTML
          
        TEXT
      end

      it 'automatically adds terminal semicolons to CSS rules' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
        HTML
          
        TEXT
      end

      context 'when  nested in , nested in 
    ' do
        it 'sanitizes those elements as normal' do
          expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
            
    
          HTML
            
    
          TEXT
        end
      end
    end

    context 'sample email input' do
      it 'handles sample input 1' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    
          abc
    Von: Fritz Bauer [mailto:me@example.com] 
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's 
    
        HTML
          
    abc
    Von: Fritz Bauer [mailto:me@example.com] 
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's 
    
        TEXT
      end

      it 'handles sample input 2' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
     abc
     Von: Fritz Bauer [mailto:me@example.com] 
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's 
    
        HTML
          
    abc
     Von: Fritz Bauer [mailto:me@example.com] 
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's 
    
        TEXT
      end

      it 'handles sample input 3' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
     abc
     Von: Fritz Bauer [mailto:me@example.com] 
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's 
     
    
        HTML
          
    abc
     Von: Fritz Bauer [mailto:me@example.com] 
    Gesendet: Donnerstag, 3. Mai 2012 11:51
    An: John Smith
    Cc: Smith, John Marian; johnel.fratczak@example.com; ole.brei@example.com; Günther John | Example GmbH; bkopon@example.com; john.heisterhagen@team.example.com; sven.rocked@example.com; michael.house@example.com; tgutzeit@example.com
    Betreff: Re: OTRS::XXX Erweiterung - Anhänge an CI's 
    
        TEXT
      end

      it 'handles sample input 4' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Mit freundlichem Gruß 

    John Smith
    Service und Support

    Example Service AG & Co.
    Management OHG
    Someware-Str. 4
    xxxxx Someware

    Tel.: +49 001 7601 462
    Fax: +49 001 7601 472
    
        HTML
          
    Mit freundlichem Gruß 

    John Smith
    Service und Support

    Example Service AG & Co.
    
          Management OHG
    Someware-Str. 4
    xxxxx Someware

    
          
    
          Tel.: +49 001 7601 462
    Fax: +49 001 7601 472    
          
    
        TEXT
      end

      it 'handles sample input 5' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    
          
    Guten Morgen, Frau ABC,
    
          
     
    
          
    vielen Dank für die Reservierung. Dabei allerdings die Sprache (Niederländisch) nicht erwähnt. Können Sie bitte dieses in Ihrer Reservierung vormerken?
    
          
     
    
          
    Nochmals vielen Dank und herzliche Grüße
          
    
          
    
          
     
    
          
    Anna Smith
    
          
    art abc SEV GmbH
    
          
    art abc TRAV
    
          
    Marktstätte 123
    
          
    123456 Dorten
    
          
    T: +49 (0) 12345/1234560-1
    
          
    T: +49 (0) 12345/1234560-0
    
          
    F: +49 (0) 12345/1234560-2
    
          
    annad@example.com
    
          
    www.example.com         
          www.ABC.com
    
          
    Geschäftsführer Vor Nach, VorUndZu Nach     -     Amtsgericht Dort HRB 12345    -    Ein Unternehmer der ABC Gruppe
    
        HTML
          
    
          
    Guten Morgen, Frau ABC,
     
    vielen Dank für die Reservierung. Dabei allerdings die Sprache (Niederländisch) nicht erwähnt. Können Sie bitte dieses in Ihrer Reservierung vormerken?
     
    Nochmals vielen Dank und herzliche Grüße 
    
          
     
    Anna Smith
    art abc SEV GmbH
    art abc TRAV
    Marktstätte 123
    123456 Dorten
    T: +49 (0) 12345/1234560-1
    T: +49 (0) 12345/1234560-0
    F: +49 (0) 12345/1234560-2
    annad@example.com
    www.example.com www.ABC.com
    Geschäftsführer Vor Nach, VorUndZu Nach - Amtsgericht Dort HRB 12345 - Ein Unternehmer der ABC Gruppe
    
        TEXT
      end

      it 'handles sample input 6' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
     
    
          
    
          
    
          
    Von: Besucherbüro, MKuk [mailto:besucherbuero@example.com] 
    
          Gesendet: Freitag, 16. Dezember 2016 08:05
    
          An: \'Amaia Epalza\'
    
          Betreff: AW: Gruppe vtb Kultuur // 28.06.2017
    
          
    
          
    
          
     
    
          
    Reservierungsbestätigung Führung Skulptur-Projekte 2017 am
          
    
          
     
    
          
    Guten Morgen Frau Epalza,
    
        HTML
          
     
    
          
    
          
    Von: Besucherbüro, MKuk [mailto:besucherbuero@example.com] 
    
          Gesendet: Freitag, 16. Dezember 2016 08:05
    
          An: 'Amaia Epalza'
    
          Betreff: AW: Gruppe vtb Kultuur // 28.06.2017
     
    Reservierungsbestätigung Führung Skulptur-Projekte 2017 am 
     
    Guten Morgen Frau Epalza,
    
        TEXT
      end

      it 'handles sample input 7' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    Wir brauchen also die Instanz example.zammad.com, kann die aber nicht mehr nutzen.

    Bitte um Freischaltung.


    
        HTML
          
    Wir brauchen also die Instanz example.zammad.com, kann die aber nicht mehr nutzen.
     
    Bitte um Freischaltung.
     
    
        TEXT
      end

      it 'handles sample input 8' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
    oh jeee … Zauberwort vergessen ;-) Können Sie mir
          bitte noch meine Testphase verlängern?
    
          
     
    
        HTML
          
    oh jeee … Zauberwort vergessen ;-) Können Sie mir bitte noch meine Testphase verlängern?
     
    
        TEXT
      end

      it 'handles sample input 9' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
        HTML
          
        TEXT
      end

      it 'handles sample input 10' do
        expect(<<~HTML.chomp.html2html_strict).to eq(<<~TEXT.chomp)
          
     
    20-29
    200
    -1
    201
    country
    Target (gross)
    Remaining Recruits
    Total Recruits
    
          
     
    		
          
    20-29
    		
          
    200
    		
          
    -1
    		
          
    201
    		
          
          
          
    
          country
          
    		
          
    Target (gross)
    		
          
    Remaining Recruits
    		
          
    Total Recruits