\version "2.19.52"

%% probably compile in terminal with:
% lilypond --loglevel=WARN manual-breaking-assertion-failure-04.ly
% or
% lilypond --loglevel=ERROR manual-breaking-assertion-failure-04.ly

\pointAndClickOff

compileWhat =
\applyContext 
#(lambda (ctx) (format #t "\n\n\t\tCompiling: ~a\n" (ly:context-id ctx)))

\layout { \context { \Staff \compileWhat } }

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TEST only line-break-permission
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TEST 1a, line-break-permission in layout
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 1a, line-break-permission in layout" }

testMusicI = { 
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 1a" \testMusicI
  \layout { \override Score.NonMusicalPaperColumn.line-break-permission = ##f }
}

%%%%%%%%%%%%%%%%%
%% TEST 1b
%%%%%%%%%%%%%%%%%
%%{
\markup 
  \rounded-box 
  \fill-line { "TEST 1b, line-break-permission first in music" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 1b" \testMusicI
}

%%%%%%%%%%%%%%%%%
%% TEST 1c
%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 1c, line-break-permission in music, with manual break" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  \break
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 1c" \testMusicI
}
%%%%%%%%%%%%%%%%%
%% TEST 1d
%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 1d, line-break-permission in music, switching #f and #t" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  \override Score.NonMusicalPaperColumn.line-break-permission = #'allow
  R1 R\fermataMarkup
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 1d" \testMusicI
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TEST only page-break-permission
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TEST 2a, page-break-permission in layout
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 2a, page-break-permission in layout" }

testMusicI = { 
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 2a" \testMusicI
  \layout { \override Score.NonMusicalPaperColumn.page-break-permission = ##f }
}

%%%%%%%%%%%%%%%%%
%% TEST 2b
%%%%%%%%%%%%%%%%%
%%{
\markup 
  \rounded-box 
  \fill-line { "TEST 2b, page-break-permission first in music" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 2b" \testMusicI
}

%%%%%%%%%%%%%%%%%
%% TEST 2c
%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 2c, page-break-permission in music, with manual pageBreak" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  \pageBreak
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 2c" \testMusicI
}
%%%%%%%%%%%%%%%%%
%% TEST 2d
%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 2d, page-break-permission in music, switching #f and #t" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  \override Score.NonMusicalPaperColumn.page-break-permission = #'allow
  R1 R\fermataMarkup
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 2d" \testMusicI
}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TEST both, page-break-permission and line-break-permission
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TEST 3a, both in layout
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 3a, both in layout" }

testMusicI = { 
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 3a" \testMusicI
  \layout { 
    \override Score.NonMusicalPaperColumn.line-break-permission = ##f 
    \override Score.NonMusicalPaperColumn.page-break-permission = ##f 
  }
}

%%%%%%%%%%%%%%%%%
%% TEST 3b
%%%%%%%%%%%%%%%%%
%%{
\markup 
  \rounded-box 
  \fill-line { "TEST 3b, both first in music" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 3b" \testMusicI
}

%%%%%%%%%%%%%%%%%
%% TEST 3c
%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 3c, both in music, with manual pageBreak" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  R1 R1\fermataMarkup
  \repeat unfold 320 b2
  \pageBreak
  R1 R\fermataMarkup
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 3c" \testMusicI
}

%%%%%%%%%%%%%%%%%
%% TEST 3d
%%%%%%%%%%%%%%%%%

\markup 
  \rounded-box 
  \fill-line { "TEST 3d, page-break-permission in music, switching #f and #t" }

testMusicI = { 
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  R1 R\fermataMarkup
  \repeat unfold 320 b2
  \override Score.NonMusicalPaperColumn.line-break-permission = #'allow
  \override Score.NonMusicalPaperColumn.page-break-permission = #'allow
  R1 R\fermataMarkup
  \override Score.NonMusicalPaperColumn.line-break-permission = ##f
  \override Score.NonMusicalPaperColumn.page-break-permission = ##f
  \repeat unfold 320 b2 
}

\score {
  \new Staff = "TEST 3d" \testMusicI
}