From: "artoxvw@..." <artoxvw@...>
Date: 2009-05-14T22:15:06+09:00
Subject: How can I use the "test/unit" right

when I run the following code

require 'test/unit'
class TC_Pram < Test::Unit::TestCase
  def initialize(name)
    @name=name
  end
  def test_array
     puts assert_equal(2,@name[2])
  end
end
tc=TC_Pram.new("wang")
tc.test_array

there are some errors as follows

c:/ruby/lib/ruby/1.8/test/unit/testcase.rb:125:in `add_assertion':
undefined method `add_assertion' for nil:NilClass (NoMethodError)
 from c:/ruby/lib/ruby/1.8/test/unit/assertions.rb:494:in
`_wrap_assertion'
 from c:/ruby/lib/ruby/1.8/test/unit/assertions.rb:46:in
`assert_block'
 from c:/ruby/lib/ruby/1.8/test/unit/assertions.rb:83:in
`assert_equal'
 from test_unit.rb:7:in `test_array'
 from test_unit.rb:11

I don't know how to resolve it , so I need  your help , thanks