From: Daniel N <has.sox@...>
Date: 2007-07-26T10:12:03+09:00
Subject: Re: How to properly iterate an array (using TDD)

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On 7/26/07, Al Cholic <desertfox@hot.ee> wrote:
>
> Hello,
>
> Im trying to iterate an array, but its not working.
>
> I have setup a test that looks like this:
>
> def test_getting_component_info
>     original = ["1  1  C1  0805,C56p  0805", "2  5  C2,C5,C19,C24,C25
> 0603,C0.01  0603  50V +/-10%  ECU-V1H103KBV  Panasonic  2011032601"]
>     expected = "5\n9"
>
>     assert_equal(expected, get_component_info(original))
>   end
>
> The string elements are seperated by tabs.
>
>
> And here is my method that I am testing:
>
> def get_component_info(bom)
>   bom.each { |line|
>   line.split("\t").length
>   }
> end
>
> And here is what the test script says:
> <"5\n9"> expected but was
> <["1\t1\tC1\t0805,C56p\t0805",
> "2\t5\tC2,C5,C19,C24,C25\t0603,C0.01\t0603\t50V
> +/-10%\tECU-V1H103KBV\tPanasonic\t2011032601"]>.
>
> The mehtod seems to be returning the same array that im passing in.
> What am I doing wrong?  Without the array iteration Im able to split it
> by tabs and do everything but as soon as I put the iteration block,
> everything messes up.


The get_component_info method is returning the bom variable because that was
the last thing evaluated.

bom.each{ stuff } will return bom if it's the last statement.

I'm not sure where the "5\n9" comes from.  I don't see anything in the array
or the get_component_info method that would give this value.

What are you trying to do?

Cheers
Daniel

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