How can I use the "test/unit" right

ruby-talk
1

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

2

require 'test/unit'

class TC_Pram < Test::Unit::TestCase
   def setup
     @name = "wang"
   end

   def test_array
     assert_equal ?n, @name[2]
   end
end

···

On May 14, 2009, at 06:15 , artoxvw@gmail.com wrote:

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

---

nothing more. don't add puts. don't instantiate or call the method. just run it with ruby. "require 'test/unit'" will take care of the rest.

I changed your assertion so that it'll pass. you may not have wanted that.