A simple ruby block usage.

ruby_block.rb

###
# Ruby Block
###

@buffer = ""

def test(description, &block)
  if block_given?
    puts "##{description}"
    yield
  else
    puts "Pending ##{description}"
  end
end

def assert(value, expect)
  if value == expect
    @buffer << "."
  else
    @buffer << "x"
    puts "Failed! Get #{value} but expect #{expect}"
  end
end

test "No block given"

test "Succes" do
  assert(true, true)
end

test "Faile" do
  assert(true, false)
end

puts @buffer