require 'test/unit'
require 'syntax/convertors/latex'

class TC_Convertors_Latex < Test::Unit::TestCase
  def setup
    @convertor = Syntax::Convertors::LaTeX.for_syntax "ruby"
  end

  def test_latex_escape
    tests = {"I have $30, and new\\\nline" => "I have \\$30, and new$\\backslash$\nline",
             'I like "clean & simple" things just best than {obscure,complicated}' => 'I like "{}clean \& simple"{} things just best than \{obscure,complicated\}',
             "The string '\\'' is valid –in C" => "The string '$\\backslash$'' is valid ---in C",
             "Escape dollars as \\$, and continue line, backslash at the end, like so: \\\n" => "Escape dollars as $\\backslash$\\$, and continue line, backslash at the end, like so: $\\backslash$\n",
             "Perl: $foo{some_key} =~ /^#.*$/" => "Perl: \\$foo\\{some\\_key\\} =\\~{} /\\^{}\\#.*\\$/",
             "Double backslash escaping: \\\\" => "Double backslash escaping: $\\backslash$$\\backslash$",
             "\"Some\nmultiline\nstring\"" => "\"{}Some\nmultiline\nstring\"{}"}
    tests.each_pair do |k,v|
      assert_equal(v, @convertor.send(:latex_escape, k))
    end
  end

  def test_output
    expected = <<'EOD'
\begin{semiverbatim}
\synkeyword{class }\synclass{Curso} \synpunct{<} \synconstant{ActiveRecord}\synpunct{::}\synconstant{Base}
  \synident{has\_many} \synsymbol{:documentos}
  \synident{has\_many} \synsymbol{:examenes}\synpunct{,} \synsymbol{:class\_name} \synpunct{=>} \synpunct{'}\synstring{Documento}\synpunct{',}
                      \synsymbol{:conditions} \synpunct{=>} \synpunct{"{}}\synstring{tipo = 'examen'}\synpunct{"{}}
  \synident{has\_and\_belongs\_to\_many} \synsymbol{:alumnos}\synpunct{,} \synsymbol{:order} \synpunct{=>} \synpunct{'}\synstring{nombre}\synpunct{'}
  \synident{belongs\_to} \synsymbol{:temporada}\synpunct{,} \synsymbol{:class\_name} \synpunct{=>} \synpunct{'}\synstring{AnoAcademico}\synpunct{',}
                         \synsymbol{:foreign\_key} \synpunct{=>} \synpunct{'}\synstring{curso\_id}\synpunct{'}
\synkeyword{end}
\synident{curso} \synpunct{=} \synconstant{Curso}\synpunct{.}\synident{find}\synpunct{(}\synident{params}\synpunct{[}\synsymbol{:id}\synpunct{])}
\synident{curso}\synpunct{.}\synident{find}\synpunct{(}\synsymbol{:all}\synpunct{,} \synsymbol{:order} \synpunct{=>} \synpunct{'}\synstring{nombre}\synpunct{',} \synsymbol{:limit} \synpunct{=>} \synnumber{5}\synpunct{).}
      \synident{map} \synpunct{\{|}\synident{c}\synpunct{|} \synident{c}\synpunct{.}\synident{examenes}\synpunct{\}.}\synident{flatten}
\end{semiverbatim}
EOD
    source = <<'EOD'
class Curso < ActiveRecord::Base
  has_many :documentos
  has_many :examenes, :class_name => 'Documento',
                      :conditions => "tipo = 'examen'"
  has_and_belongs_to_many :alumnos, :order => 'nombre'
  belongs_to :temporada, :class_name => 'AnoAcademico',
                         :foreign_key => 'curso_id'
end
curso = Curso.find(params[:id])
curso.find(:all, :order => 'nombre', :limit => 5).
      map {|c| c.examenes}.flatten
EOD
    assert_equal(expected, @convertor.convert(source))
  end

  def teardown
    @convertor = nil
  end
end