```ruby
require 'spec_helper'

describe Task do

  describe "mass assignment" do
    it "allows mass-assignment of 'subject'" do
      resolution = Resolution.make
      expect {Task.new(:subject => resolution)}.to_not raise_error
    end
  end

  describe "associations" do
    it "belongs to a polymorphic subject" do
      resolution = Resolution.make!
      task = Task.make!

      expect {task.subject = resolution}.to_not raise_error

      task.save!
      task.reload
      
      task.subject(true).should == resolution
    end
  end

  describe "scopes" do
    before(:each) do
      @completed_task = Task.make!(:completed_at => 10.seconds.ago)  
      @future_task = Task.make!(:starts_on => 1.day.from_now)
      @task = Task.make!
    end

    describe "current" do
      it "does not include completed tasks" do
        Task.current.should_not include(@completed_task)
      end

      it "does not include future tasks" do
        Task.current.should_not include(@future_task)
      end

      it "includes other tasks" do
        Task.current.should include(@task)
      end
    end
  end

end
```

Fix Task spec failing when run at certain times.
user
```ruby
require 'spec_helper'

describe Task do

  describe "mass assignment" do
    it "allows mass-assignment of 'subject'" do
      resolution = Resolution.make
      expect {Task.new(:subject => resolution)}.to_not raise_error
    end
  end

  describe "associations" do
    it "belongs to a polymorphic subject" do
      resolution = Resolution.make!
      task = Task.make!

      expect {task.subject = resolution}.to_not raise_error

      task.save!
      task.reload
      
      task.subject(true).should == resolution
    end
  end

  describe "scopes" do
    before(:each) do
      @completed_task = Task.make!(:completed_at => 10.seconds.ago)
      @future_task = Task.make!(:starts_on => Date.today.advance(:days => 1))
      @task = Task.make!
    end

    describe "current" do
      it "does not include completed tasks" do
        Task.current.should_not include(@completed_task)
      end

      it "does not include future tasks" do
        Task.current.should_not include(@future_task)
      end

      it "includes other tasks" do
        Task.current.should include(@task)
      end
    end
  end

end
```
assistant