require File.expand_path(File.dirname(__FILE__) + '/spec_helper')

require 'hx'
require 'set'

describe Hx::Cache do
  before(:each) do
    @source = FakeSource.new
    @source.add_entry('foo', 'BLAH')
    @source.add_entry('bar', 'EEP')
    @cache = Hx::Cache.new(@source)
  end

  it "should return itself from each_entry" do
    @cache.each_entry {}.should == @cache
  end

  it "enumerates the same entries from the source" do
    @cache.each_entry do |path, entry|
      entry.should == @source.get_entry(path)
    end
  end

  it "only reads the source once" do
    @cache.each_entry {}
    def @source.each_entry
      raise RuntimeError, "should not be called"
    end
    @cache.each_entry {}
  end
end