Make newer version of kernel test directory agnostic as well

git-svn-id: http://svn.codehaus.org/jruby/trunk/jruby@4817 961051c9-f516-0410-bf72-c9f7e237a7b7

test/test_kernel.rb

@@ -217,16 +217,22 @@ def test_load_should_call_to_str_on_arg
   end
 
   def test_shall_load_from_load_path
-    begin
-      File.open(File.expand_path('.') +'/file_to_be_loaded','w' ) do |f|
-        f.puts "raise"
+    tmp = ENV["TEMP"] || ENV["TMP"] || ENV["TMPDIR"] || "/tmp"
+    Dir.chdir(tmp) do
+      load_path_save = $LOAD_PATH
+      begin
+        File.open(File.expand_path('.') +'/file_to_be_loaded','w' ) do |f|
+          f.puts "raise"
+        end
+        $LOAD_PATH.delete_if{|dir| dir=='.'}
+        assert_raise(LoadError) {
+          load 'file_to_be_loaded'
+        }
+      ensure
+        File.delete(File.expand_path('.') +'/file_to_be_loaded')
+        $LOAD_PATH.clear
+        $LOAD_PATH << load_path_save
       end
-      $LOAD_PATH.delete_if{|dir| dir=='.'}
-      assert_raise(LoadError) {
-        load 'file_to_be_loaded'
-      }
-    ensure
-      File.delete(File.expand_path('.') +'/file_to_be_loaded')
     end
   end