require 'test_helper'
require 'mocha'

class TestPandocRuby < Test::Unit::TestCase
  
  def setup
    @file = File.join(File.dirname(__FILE__), 'test.md')
    @converter = PandocRuby.new(@file, :t => :rst)
  end
  
  def teardown
    PandocRuby.bin_path = nil
  end
  
  should "call bare pandoc when passed no options" do
    converter = PandocRuby.new(@file)
    converter.expects(:execute).with('pandoc').returns(true)
    assert converter.convert
  end
  
  should "convert with altered bin_path" do
    path = %x[which pandoc].strip
    PandocRuby.bin_path = path
    converter = PandocRuby.new(@file)
    converter.expects(:execute).with("#{path}/pandoc").returns(true)
    assert converter.convert
  end
  
  should "accept short options" do
    @converter.expects(:execute).with('pandoc -t rst').returns(true)
    assert @converter.convert
  end
  
  should "accept long options" do
    converter = PandocRuby.new(@file, :to => :rst)
    converter.expects(:execute).with('pandoc --to=rst').returns(true)
    assert converter.convert
  end
  
  should "accept a variety of options" do
    converter = PandocRuby.new(@file, :s, {:to => :rst, :f => :markdown}, 'no-wrap')
    converter.expects(:execute).with('pandoc -s --to=rst -f markdown --no-wrap').returns(true)
    assert converter.convert
  end

  should "accept optional executable" do
    converter = PandocRuby.new(@file, 'html2markdown')
    converter.expects(:execute).with('html2markdown').returns(true)
    assert converter.convert
  end
  
  should "use non-executable second arg as option" do
    converter = PandocRuby.new(@file, 'toc')
    converter.expects(:execute).with('pandoc --toc').returns(true)
    assert converter.convert
  end
  
  should "convert to html with to_html" do
    converter = PandocRuby.new(@file)
    converter.expects(:execute).with('pandoc --to=html').returns(true)
    assert converter.to_html
  end
  
  should "work with strings" do
    converter = PandocRuby.new('## this is a title')
    assert_match %r(h2), converter.convert
  end
  
  should "alias to_s" do
    assert_equal @converter.convert, @converter.to_s
  end
  
  should "have convert class method" do
    assert_equal @converter.convert, PandocRuby.convert(@file, :t => :rst)
  end
  
  should "run more than 400 times without error" do
    begin
      400.times do
        PandocRuby.convert(@file)
      end 
      assert true
    rescue Errno::EMFILE, Errno::EAGAIN => e
      flunk e
    end
  end
end