t/23-pattern.t

   1 #!perl -T
   2
   3 use strict;
   4 use warnings;
   5
   6 use Test::More tests => 5 + 4 * 5;
   7
   8 use LaTeX::TikZ;
   9
  10 my $tikz = Tikz->formatter(
  11  format => '%d',
  12 );
  13
  14 sub check {
  15  my ($set, $desc, $exp_decl, $exp) = @_;
  16
  17  local $Test::Builder::Level = $Test::Builder::Level + 1;
  18
  19  my ($head, $decl, $body) = eval {
  20   $tikz->render(ref $set eq 'ARRAY' ? @$set : $set);
  21  };
  22  is $@, '', "$desc: no error";
  23
  24  is $head->[-1], '\usetikzlibrary{patterns}', "$desc: header";
  25
  26  unless (ref $exp_decl eq 'ARRAY') {
  27   $exp_decl = [ split /\n/, $exp_decl ];
  28  }
  29
  30  unless (ref $exp eq 'ARRAY') {
  31   $exp = [ split /\n/, $exp ];
  32  }
  33  unshift @$exp, '\begin{tikzpicture}';
  34  push    @$exp, '\end{tikzpicture}';
  35
  36  is_deeply $decl, $exp_decl, "$desc: declarations";
  37  is_deeply $body, $exp,      "$desc: body";
  38 }
  39
  40 my $lines = eval {
  41  Tikz->raw("foo")
  42      ->mod(Tikz->pattern(class => 'Lines'));
  43 };
  44 is $@, '', 'creating a line pattern doesn\'t croak';
  45
  46 check $lines, 'a line pattern', <<'DECL', <<'BODY';
  47 \pgfdeclarepatternformonly{pata}{\pgfqpoint{-0.2pt}{-0.2pt}}{\pgfqpoint{0.3pt}{0.3pt}}{\pgfqpoint{0.2pt}{0.2pt}}{
  48 \pgfsetlinewidth{0.2pt}
  49 \pgfpathmoveto{\pgfqpoint{-0.2pt}{0.1pt}}
  50 \pgfpathlineto{\pgfqpoint{0.3pt}{0.1pt}}
  51 \pgfusepath{stroke}
  52 }
  53 DECL
  54 \draw [fill,pattern=pata] foo ;
  55 BODY
  56
  57 my $dots = eval {
  58  Tikz->raw("foo")
  59      ->mod(Tikz->pattern(class => 'Dots'));
  60 };
  61 is $@, '', 'creating a dot pattern doesn\'t croak';
  62
  63 check $dots, 'a dot pattern', <<'DECL', <<'BODY';
  64 \pgfdeclarepatternformonly{patb}{\pgfqpoint{-0.2pt}{-0.2pt}}{\pgfqpoint{0.3pt}{0.3pt}}{\pgfqpoint{0.2pt}{0.2pt}}{
  65 \pgfpathcircle{\pgfqpoint{0.1pt}{0.1pt}}{0.2pt}
  66 \pgfusepath{fill}
  67 }
  68 DECL
  69 \draw [fill,pattern=patb] foo ;
  70 BODY
  71
  72 my ($lines_mod) = $lines->mods;
  73 my ($dots_mod)  = $dots->mods;
  74
  75 my $seq = eval {
  76  Tikz->seq(
  77   Tikz->raw('foo')
  78       ->mod($lines_mod)
  79  )->mod($lines_mod);
  80 };
  81 is $@, '', 'creating a sequence with two identic patterns doesn\'t croak';
  82
  83 check $seq, 'a sequence with two identic patterns', <<'DECL', <<'BODY';
  84 \pgfdeclarepatternformonly{pata}{\pgfqpoint{-0.2pt}{-0.2pt}}{\pgfqpoint{0.3pt}{0.3pt}}{\pgfqpoint{0.2pt}{0.2pt}}{
  85 \pgfsetlinewidth{0.2pt}
  86 \pgfpathmoveto{\pgfqpoint{-0.2pt}{0.1pt}}
  87 \pgfpathlineto{\pgfqpoint{0.3pt}{0.1pt}}
  88 \pgfusepath{stroke}
  89 }
  90 DECL
  91 \draw [fill,pattern=pata] foo ;
  92 BODY
  93
  94 $seq = eval {
  95  Tikz->seq(
  96   Tikz->raw('foo')
  97       ->mod($lines_mod)
  98  )->mod(Tikz->pattern(class => 'Lines', direction => 'vertical'));
  99 };
 100 is $@, '',
 101          'creating a sequence with two orthogonal line patterns doesn\'t croak';
 102
 103 check $seq, 'a sequence with two orthogonal line patterns', <<'DECL', <<'BODY';
 104 \pgfdeclarepatternformonly{patc}{\pgfqpoint{-0.2pt}{-0.2pt}}{\pgfqpoint{0.3pt}{0.3pt}}{\pgfqpoint{0.2pt}{0.2pt}}{
 105 \pgfsetlinewidth{0.2pt}
 106 \pgfpathmoveto{\pgfqpoint{0.1pt}{-0.2pt}}
 107 \pgfpathlineto{\pgfqpoint{0.1pt}{0.3pt}}
 108 \pgfusepath{stroke}
 109 }
 110 \pgfdeclarepatternformonly{pata}{\pgfqpoint{-0.2pt}{-0.2pt}}{\pgfqpoint{0.3pt}{0.3pt}}{\pgfqpoint{0.2pt}{0.2pt}}{
 111 \pgfsetlinewidth{0.2pt}
 112 \pgfpathmoveto{\pgfqpoint{-0.2pt}{0.1pt}}
 113 \pgfpathlineto{\pgfqpoint{0.3pt}{0.1pt}}
 114 \pgfusepath{stroke}
 115 }
 116 DECL
 117 \draw [fill,pattern=patc,pattern=pata] foo ;
 118 BODY
 119
 120 $seq = eval {
 121  Tikz->seq(
 122   Tikz->raw('foo')
 123       ->mod($lines_mod)
 124  )->mod($dots_mod);
 125 };
 126 is $@, '', 'creating a sequence with two different patterns doesn\'t croak';
 127
 128 check $seq, 'a sequence with two different patterns', <<'DECL', <<'BODY';
 129 \pgfdeclarepatternformonly{patb}{\pgfqpoint{-0.2pt}{-0.2pt}}{\pgfqpoint{0.3pt}{0.3pt}}{\pgfqpoint{0.2pt}{0.2pt}}{
 130 \pgfpathcircle{\pgfqpoint{0.1pt}{0.1pt}}{0.2pt}
 131 \pgfusepath{fill}
 132 }
 133 \pgfdeclarepatternformonly{pata}{\pgfqpoint{-0.2pt}{-0.2pt}}{\pgfqpoint{0.3pt}{0.3pt}}{\pgfqpoint{0.2pt}{0.2pt}}{
 134 \pgfsetlinewidth{0.2pt}
 135 \pgfpathmoveto{\pgfqpoint{-0.2pt}{0.1pt}}
 136 \pgfpathlineto{\pgfqpoint{0.3pt}{0.1pt}}
 137 \pgfusepath{stroke}
 138 }
 139 DECL
 140 \draw [fill,pattern=patb,pattern=pata] foo ;
 141 BODY