From: Simon Strandgaard <0bz63fz3m1qt3001@...>
Date: 2003-05-30T09:45:54+09:00
Subject: Re: Array.extend versus instance.extend

On Fri, 30 May 2003 01:15:32 +0900, Guillaume Marcais wrote:

> module ArrayMisc2
>   def shift_until(klass)
>     p = -1
>     detect { |x| p += 1; klass === x }
>     slice!(0, p)
>   end
>   def pop_until(klass)
>     p = -1
>     reverse.detect { |x| p += 1; klass === x }
>     slice!(-p, p)
>   end
> end


Sorry your code does not pass all the tests.. it has somekind of 
different behavier. I have never tried using 'Enumable#detect' before
so I cannot figure out exactly what seems to be the problem.
Thanks for trying :-)


> ruby test_misc.rb

TestMisc#test_pop_until .
TestMisc#test_pop_until_non_existing_class F.
TestMisc#test_pop_until_regex .
TestMisc#test_shift_until .
TestMisc#test_shift_until_non_existing_class F.
TestMisc#test_shift_until_regex .
Time: 0.015673
FAILURES!!!
Test Results:
 Run: 6/6(10 asserts) Failures: 2 Errors: 0
Failures: 2
test_misc.rb:37:in `test_pop_until_non_existing_class'(TestMisc): expected:<[]> but was:<[1]> (RUNIT::AssertionFailedError)
        from test_misc.rb:49
test_misc.rb:19:in `test_shift_until_non_existing_class'(TestMisc): expected:<[]> but was:<[6]> (RUNIT::AssertionFailedError)
        from test_misc.rb:49
>



The test cases looks like this:

    def test_shift_until_non_existing_class
        ary = [1, 2, "a", 3, 4, "b", 5, 6]
        res = ary.shift_until(IO)
        assert_equal([], ary)    # BOOM
        assert_equal([1, 2, "a", 3, 4, "b", 5, 6], res)
    end
    def test_pop_until_non_existing_class
        ary = [1, 2, "a", 3, 4, "b", 5, 6]
        res = ary.pop_until(IO)
        assert_equal([], ary)    # BOOM
        assert_equal([1, 2, "a", 3, 4, "b", 5, 6], res)
    end



--
Simon Strandgaard