diff --git a/judge/scripts/test/engine_test.rb b/judge/scripts/test/engine_test.rb
deleted file mode 100644
--- a/judge/scripts/test/engine_test.rb
+++ /dev/null
@@ -1,152 +0,0 @@
-require 'test/unit'
-require 'rubygems'
-require 'mocha'
-
-require File.join(File.dirname(__FILE__),'test_helper')
-
-class GraderEngineTest < UnitTest.TestCase
-
-  def setup
-    @@lang_c = stub(:name => 'c', :ext => 'c')
-    @@lang_cpp = stub(:name => 'cpp', :ext => 'cpp')
-    @@lang_pas = stub(:name => 'pas', :ext => 'pas')
-
-    @config = Grader::Configuration.get_instance
-
-    @problem_test1 = stub(:id => 1, :name => 'test1', :full_score => 135)
-    @user_user1 = stub(:id => 1, :login => 'user1')
-
-    @engine = Grader::Engine.new    
-
-    init_sandbox
-  end
-
-  def teardown
-  end
-
-  def test_grade_oldest_task_with_no_submission
-    Task.expects(:get_inqueue_and_change_status).returns(nil)
-    assert_equal nil, @engine.grade_oldest_task, 'should return nil when there is no task'
-  end
-
-  def test_normal_submission
-    submission = create_test1_submission_mock_from_file("test1_correct.c")
-
-    submission.expects(:graded_at=)
-    submission.expects(:points=).with(135)
-    submission.expects(:grader_comment=).with do |value|
-      /^PASSED/.match(value)
-    end
-    submission.expects(:compiler_message=).with('')
-    submission.expects(:save)
-
-    @engine.grade(submission)
-  end
-
-  def test_compile_error_submission
-    submission = create_test1_submission_mock_from_file("test1_compile_error.c")
-
-    submission.expects(:graded_at=)
-    submission.expects(:points=).with(0)
-    submission.expects(:grader_comment=).with('FAILED: compile error')
-    submission.expects(:compiler_message=) do |value|
-      /[Ee]rror/.match value
-    end
-    submission.expects(:save)
-
-    @engine.grade(submission)
-  end
-
-  def test_timeout_submission
-    @problem_test2 = stub(:id => 1, :name => 'test2', :full_score => 10)
-    @user_user1 = stub(:id => 1, :login => 'user1')
-
-    submission = create_submission_from_file(1, @user_user1, @problem_test2,
-                                             "test2_timeout.c")
-
-    submission.expects(:graded_at=)
-    submission.expects(:points=).with(0)
-    submission.expects(:grader_comment=).with do |value|
-      /^FAILED: TT$/.match value
-    end
-    submission.expects(:compiler_message=).with('')
-    submission.expects(:save)
-
-    @engine.grade(submission)
-  end
-
-  def test_timeout_submission_running_one_and_a_half_second
-    @problem_test2 = stub(:id => 1, :name => 'test2', :full_score => 20)
-    @user_user1 = stub(:id => 1, :login => 'user1')
-
-    submission = create_submission_from_file(1, @user_user1, @problem_test2,
-                                             "test2_1-5sec.c")
-
-    submission.expects(:graded_at=)
-    submission.expects(:points=).with(10)
-    submission.expects(:grader_comment=).with do |value|
-      /^FAILED: TP$/.match value
-    end
-    submission.expects(:compiler_message=).with('')
-    submission.expects(:save)
-
-    @engine.grade(submission)
-  end
-
-  def test_grade_oldest_task
-    # mock submission
-    submission = create_test1_submission_mock_from_file("test1_correct.c")
-
-    submission.expects(:graded_at=)
-    submission.expects(:points=).with(135)
-    submission.expects(:grader_comment=).with do |value|
-      /^PASSED/.match(value)
-    end
-    submission.expects(:compiler_message=).with('')
-    submission.expects(:save)
-
-    # mock task
-    task = stub(:id => 1, :submission_id => submission.id)
-    Task.expects(:get_inqueue_and_change_status).returns(task)
-    task.expects(:status_complete!)
-
-    # mock Submission
-    Submission.expects(:find).with(task.submission_id).returns(submission)
-
-    @engine.grade_oldest_task
-  end
-
-  def test_grade_oldest_task_with_grader_process
-    grader_process = stub
-    grader_process.expects(:report_active)
-
-    @engine = Grader::Engine.new(grader_process)
-
-    test_grade_oldest_task
-  end
-
-  protected
-
-  def clear_sandbox
-    clear_cmd = "rm -rf #{@config.test_sandbox_dir}/*"
-    system(clear_cmd)
-  end
-
-  def init_sandbox
-    clear_sandbox
-    Dir.mkdir @config.user_result_dir
-    cp_cmd = "cp -R #{@config.test_data_dir}/ev #{@config.test_sandbox_dir}"
-    system(cp_cmd)
-  end
-
-  def create_submission_from_file(id, user, problem, source_fname, language = @@lang_c)
-    source = File.open(@config.test_data_dir + "/" + source_fname).read
-    stub(:id => id, :user => user, :problem => problem,
-         :source => source, :language => language)
-  end
-
-  def create_test1_submission_mock_from_file(source_fname)
-    create_submission_from_file(1, @user_user1, @problem_test1, source_fname)
-  end
-  
-end