diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
deleted file mode 100644
--- a/spec/models/user_spec.rb
+++ /dev/null
@@ -1,163 +0,0 @@
-require File.dirname(__FILE__) + '/../spec_helper'
-require File.dirname(__FILE__) + '/../config_spec_helper'
-
-describe User do
-
-  before(:each) do 
-    @password = "hello"
-    @salt = "123"
-    @john = stub_model(User, :salt => @salt,
-                       :hashed_password => User.encrypt(@password,@salt))
-  end
-
-  it "should be authenticated if activated" do
-    @john.should_receive(:activated).and_return(true)
-    @john.authenticated?(@password).should == true
-  end
-
-  it "should not be authenticated if inactivated" do
-    @john.should_receive(:activated).and_return(false)
-    @john.authenticated?(@password).should == false
-  end
-
-  it "should not be authenticated if incorrect password is provided" do
-    @john.should_receive(:activated).and_return(true)
-    @john.should_receive(:hashed_password).and_return("byebye")
-    @john.authenticated?(@password).should == false
-  end
-  
-end
-
-describe User, "during registration" do
-  
-  class User
-    public :encrypt_new_password
-  end
-
-  before(:each) do
-    @john = User.new(:login => 'john', :password => 'hello')
-    @john.encrypt_new_password
-  end
-  
-  it "should produce and accept activation key" do
-    activation_key = @john.activation_key
-
-    @john.verify_activation_key(activation_key).should == true
-  end
-  
-  it "should not accept invalid activation key" do
-    @john.verify_activation_key("12345").should == false
-  end
-end
-
-describe User, "when re-register with the same e-mail" do
-
-  before(:each) do
-    @mary_email = 'mary@in.th'
-    
-    @time_first_register = Time.local(2008,5,10,9,00).gmtime
-
-    @mary_first = mock_model(User, 
-                             :login => 'mary1', 
-                             :password => 'hello', 
-                             :email => @mary_email,
-                             :created_at => @time_first_register)
-    @mary_second = User.new(:login => 'mary2', 
-                            :password => 'hello', 
-                            :email => @mary_email)
-    User.stub!(:find_by_email).
-      with(@mary_email, {:order => "created_at DESC"}).
-      and_return(@mary_first)
-  end
-
-  class User
-    public :enough_time_interval_between_same_email_registrations
-  end
-
-  it "should not be allowed if the time interval is less than 5 mins" do
-    time_now = @time_first_register + 4.minutes
-    Time.stub!(:now).and_return(time_now)
-
-    @mary_second.enough_time_interval_between_same_email_registrations
-    @mary_second.errors.length.should_not be_zero
-  end
-
-  it "should be allowed if the time interval is more than 5 mins" do
-    time_now = @time_first_register + 6.minutes
-    Time.stub!(:now).and_return(time_now)
-
-    @mary_second.enough_time_interval_between_same_email_registrations
-    @mary_second.errors.length.should be_zero
-  end
-
-end
-
-describe User, "as a class" do
-
-  it "should be able to generate random password" do
-    password1 = User.random_password
-    password2 = User.random_password
-    
-    password1.should_not == password2
-  end
-  
-end
-
-describe User, "when requesting problem description," do
-
-  include ConfigSpecHelperMethods
-  
-  fixtures :users
-  fixtures :problems
-
-  before(:each) do
-    @james = users(:james)
-    @john = users(:john)
-    @jack = users(:jack)
-    @add = problems(:one)
-    @easy = problems(:easy)
-    @hard = problems(:hard)
-  end
-
-  it "should check if a problem is in user's contests" do
-    @james.problem_in_user_contests?(@easy).should be_true
-    @james.problem_in_user_contests?(@hard).should be_false
-
-    @john.problem_in_user_contests?(@easy).should be_false
-    @john.problem_in_user_contests?(@hard).should be_false
-  end
-
-  it "should be able to view problem in user's contests, when multicontests is on" do
-    enable_multicontest
-    @james.can_view_problem?(@easy).should be_true
-    @jack.can_view_problem?(@easy).should be_true
-    @jack.can_view_problem?(@hard).should be_true
-  end
-
-  it "should not be able to view problem not in user's contests, when multicontests is on" do
-    enable_multicontest
-    @james.can_view_problem?(@hard).should be_false
-  end
-
-  it "with no assigned contest should not be able to view problem in contests when multicontests is on" do
-    enable_multicontest
-    @john.can_view_problem?(@add).should be_true
-    @john.can_view_problem?(@easy).should be_false
-    @john.can_view_problem?(@hard).should be_false
-  end
-
-  it "should be able to view all available problems, when multicontests is off" do
-    disable_multicontest
-    @john.can_view_problem?(@easy).should be_true
-    @john.can_view_problem?(@hard).should be_true
-    @james.can_view_problem?(@easy).should be_true
-    @james.can_view_problem?(@hard).should be_true
-  end
-
-  it "should be able to view public problems, when multicontests is on" do
-    enable_multicontest
-    @john.can_view_problem?(@add).should be_true
-    @james.can_view_problem?(@add).should be_true
-  end
-
-end