gistfile1.rbx

require File.join( File.dirname(__FILE__), '..', "spec_helper" )

describe Stock do

  it "should be valid when new" do
    stock = Stock.new(:symbol => 'GOOG')
    stock.should be_valid
  end
  
  it "should be invalid when symbol is empty" do
    stock = Stock.new(:symbol => '')
    stock.should_not be_valid
  end
  
  it "should have symbol in all uppercase" do
    stock = Stock.create(:symbol => 'GOOG')
    stock.symbol.should equal(stock.symbol.upcase)
    
    stock = Stock.create(:symbol => 'goog')
    stock.symbol.should equal(stock.symbol.upcase)
  end
  
end

gistfile2.txt

require File.join( File.dirname(__FILE__), '..', "spec_helper" )

describe Comment do

  it "should be valid when new" do
    comment = Comment.new(:body => "Yesterday the market rose by 5%. I was happy.", :stock_id => '1')
    comment.should be_valid
  end
  
  it "should not be valid if body is empty" do
    comment = Comment.new(:body => '')
    comment.should_not be_valid
  end

  it "should not be valid if stock_id is empty" do
    comment = Comment.new(:body => 'Yesterday the market rose by 5%. I was happy.', :stock_id => '')
    comment.should_not be_valid
  end
  
  it "should not be valid if stock_id does not exist" do
    stock = Stock.find(:all) # this is failing because i need fixtures or a stub
    non_existant_stock_id = stock.id.to_i + 1
    comment = Comment.create(:body => 'Yseterday the market rose by 5%. I was happy.', :stock_id => non_existant_stock_id)
    comment.non_existant_stock_id should_not equal(stock.id)
  end
end