Unwanted behavior with "define" method an Test::Unit

ruby-talk
1

I'm using "define_method" to build some unit test helpers.

They look as such:

class Test::Unit::TestCase
  def self.name_of_test_helper
    define_method("test_whatever_for_#{custom_name}") {
      assert something_about(custom_name)
    }
  end
end

When I run my tests I get pages and pages of this:

./test/model_helper.rb:7: warning: multiple values for a block
parameter (0 for 1)
        from ./test/unit/../test_helper.rb:54
./test/model_helper.rb:7: warning: multiple values for a block
parameter (0 for 1)
        from ./test/unit/../test_helper.rb:53

Everything works out just fine, the tests test what I want them to
test. I just don't want all these errors.

2

Hi --

···

On Sat, 11 Aug 2007, Collin Miller wrote:

I'm using "define_method" to build some unit test helpers.

They look as such:

class Test::Unit::TestCase
def self.name_of_test_helper
   define_method("test_whatever_for_#{custom_name}") {
     assert something_about(custom_name)
   }
end
end

When I run my tests I get pages and pages of this:

./test/model_helper.rb:7: warning: multiple values for a block
parameter (0 for 1)
       from ./test/unit/../test_helper.rb:54
./test/model_helper.rb:7: warning: multiple values for a block
parameter (0 for 1)
       from ./test/unit/../test_helper.rb:53

Everything works out just fine, the tests test what I want them to
test. I just don't want all these errors.

What exactly is on the lines mentioned in the error messages?

David

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3

line 7: define_method("create_#{model_name}") { |attrs|

Line 7 seems to be the problem line.

I think I want to do this:
  define_method("create_#{model_name}") { |attrs={}|

But I cannot. I can still use the defined method and not send it an
argument, but then Ruby complains.

4

Found this:

···

-----------------
Not sure if this is the most elegant way, but:

  define_method(:method_name) do |*args|
    parameter, parameter2 = *args
    parameter2 ||= 'default'
    puts parameter
    puts parameter2
  end
-----------------

That'll do for now.

On Aug 10, 1:23 pm, Collin Miller <collintmil...@gmail.com> wrote:

line 7: define_method("create_#{model_name}") { |attrs|

Line 7 seems to be the problem line.

I think I want to do this:
  define_method("create_#{model_name}") { |attrs={}|

But I cannot. I can still use the defined method and not send it an
argument, but then Ruby complains.