The "libpath magic" in tests are replaced by the load of helper routine.

 * In all unit tests, the "libpath magic" are replaced by the load
   of helper routine.
 * Changed to use a constant BioRubyTestDataPath for generating test
   data file path.
 * Some "require" lines are modified.
 * "File.open(...).read" in some tests are replaced by "File.read(...)".
 * Header comment lines of some tests with wrong filename and/or
   class/module name information are fixed.

test/runner.rb

@@ -1,10 +1,12 @@
 #!/usr/bin/env ruby
 
-require 'test/unit'
+# loading helper routine for testing bioruby
 require 'pathname'
+load Pathname.new(File.join(File.dirname(__FILE__), 
+                            'bioruby_test_helper.rb')).cleanpath.to_s
 
-bioruby_libpath = Pathname.new(File.join(File.dirname(__FILE__), ['..'], 'lib')).cleanpath.to_s
-$:.unshift(bioruby_libpath) unless $:.include?(bioruby_libpath)
+# libraries needed for the tests
+require 'test/unit'
 
 if !defined?(Test::Unit::AutoRunner) then
   # Ruby 1.9.1 does not have Test::Unit::AutoRunner

test/unit/bio/shell/plugin/test_seq.rb

@@ -5,13 +5,15 @@
 #               Mitsuteru Nakao <n@bioruby.org>
 # License::     The Ruby License
 #
-# $Id: test_seq.rb,v 1.9 2007/04/05 23:35:44 trevor Exp $
+# $Id:$
 #
 
+# loading helper routine for testing bioruby
 require 'pathname'
-libpath = Pathname.new(File.join(File.dirname(__FILE__), ['..'] * 5, 'lib')).cleanpath.to_s
-$:.unshift(libpath) unless $:.include?(libpath)
+load Pathname.new(File.join(File.dirname(__FILE__), ['..'] * 4,
+                            'bioruby_test_helper.rb')).cleanpath.to_s
 
+# libraries needed for the tests
 require 'test/unit'
 require 'bio/shell'
 require 'bio/shell/plugin/seq'

test/unit/bio/test_shell.rb

@@ -4,13 +4,15 @@
 # Copyright::  Copyright (C) 2005 Mitsuteru Nakao <n@bioruby.org>
 # License::    The Ruby License
 #
-#  $Id: test_shell.rb,v 1.7 2007/04/05 23:35:42 trevor Exp $
+#  $Id:$
 #
 
+# loading helper routine for testing bioruby
 require 'pathname'
-libpath = Pathname.new(File.join(File.dirname(__FILE__), ['..'] * 3, 'lib')).cleanpath.to_s
-$:.unshift(libpath) unless $:.include?(libpath)
+load Pathname.new(File.join(File.dirname(__FILE__), ['..'] * 2,
+                            'bioruby_test_helper.rb')).cleanpath.to_s
 
+# libraries needed for the tests
 require 'test/unit'
 require 'bio/shell'