ruby-on-rails - rspec tests with guard is not able to access model objects

Question

I am unable to run rspec tests for db objects. I created a model using rails generator. Then I restarted the guards console. I am new to rails, so will appreciate if someone ca point out what is my obvious mistake :)

Below is the rspec file I have -

require 'spec_helper'

describe TasksController do

  describe "Tasks" do
    describe "GET/tasks" do
      it "display some tasks" do
        @task = Task.create :task => "Get it done"

        visit tasks_path 
        page.should_have_content "Get it done"
      end
    end
  end
end

I have my tests running through guard. Below is the error I receive -

Failures:

1) TasksController Tasks GET/tasks display some tasks Failure/Error: @task = Task.create :task => "Get it done" ActiveRecord::StatementInvalid: Could not find table 'tasks' # ./spec/controllers/tasks_controller_spec.rb:8:in `block (4 levels) in '