vendor/gems/rspec-1.1.2/examples/pure/shared_stack_examples.rb

   1 require File.join(File.dirname(__FILE__), *%w[spec_helper])
   2
   3 shared_examples_for "non-empty Stack" do
   4
   5   it { @stack.should_not be_empty }
   6
   7   it "should return the top item when sent #peek" do
   8     @stack.peek.should == @last_item_added
   9   end
  10
  11   it "should NOT remove the top item when sent #peek" do
  12     @stack.peek.should == @last_item_added
  13     @stack.peek.should == @last_item_added
  14   end
  15
  16   it "should return the top item when sent #pop" do
  17     @stack.pop.should == @last_item_added
  18   end
  19
  20   it "should remove the top item when sent #pop" do
  21     @stack.pop.should == @last_item_added
  22     unless @stack.empty?
  23       @stack.pop.should_not == @last_item_added
  24     end
  25   end
  26
  27 end
  28
  29 shared_examples_for "non-full Stack" do
  30
  31   it { @stack.should_not be_full }
  32
  33   it "should add to the top when sent #push" do
  34     @stack.push "newly added top item"
  35     @stack.peek.should == "newly added top item"
  36   end
  37
  38 end