require 'test/unit'

$KCODE = 'none'

class TestSystem < Test::Unit::TestCase
  def test_system
    if File.exist? "miniruby" or File.exist? "miniruby.exe"
      ruby = "./miniruby"
    else
      ruby = "ruby"
    end
    assert_equal(`echo foobar`, "foobar\n")
    assert_equal(`#{ruby} -e 'print "foobar"'`, 'foobar')
    
    tmp = open("script_tmp", "w")
    tmp.print "print $zzz\n";
    tmp.close
    
    assert_equal(`#{ruby} -s script_tmp -zzz`, 'true')
    assert_equal(`#{ruby} -s script_tmp -zzz=555`, '555')
    
    tmp = open("script_tmp", "w")
    tmp.print "#! /usr/local/bin/ruby -s\n";
    tmp.print "print $zzz\n";
    tmp.close
    
    assert_equal(`#{ruby} script_tmp -zzz=678`, '678')
    
    tmp = open("script_tmp", "w")
    tmp.print "this is a leading junk\n";
    tmp.print "#! /usr/local/bin/ruby -s\n";
    tmp.print "print $zzz\n";
    tmp.print "__END__\n";
    tmp.print "this is a trailing junk\n";
    tmp.close
    
    assert_equal(`#{ruby} -x script_tmp`, 'nil')
    assert_equal(`#{ruby} -x script_tmp -zzz=555`, '555')
    
    tmp = open("script_tmp", "w")
    for i in 1..5
      tmp.print i, "\n"
    end
    tmp.close
    
    `#{ruby} -i.bak -pe 'sub(/^[0-9]+$/){$&.to_i * 5}' script_tmp`
    done = true
    tmp = open("script_tmp", "r")
    while tmp.gets
      if $_.to_i % 5 != 0
        done = false
        break
      end
    end
    tmp.close
    assert(done)
      
    File.unlink "script_tmp" or `/bin/rm -f "script_tmp"`
    File.unlink "script_tmp.bak" or `/bin/rm -f "script_tmp.bak"`
    
    $bad = false
    if (dir = File.dirname(File.dirname($0))) == '.'
      dir = ""
    else
      dir << "/"
    end
    
    def valid_syntax?(code, fname)
      eval("BEGIN {return true}\n#{code}", nil, fname, 0)
    rescue Exception
      puts $!.message
      false
    end
    
    for script in Dir["#{dir}{lib,sample,ext}/**/*.rb"]
      unless valid_syntax? IO::read(script), script
        $bad = true
      end
    end
    assert(!$bad)
  end    
end