From: Tanaka Akira <akr@...>
Date: 2008-01-22T04:33:10+09:00
Subject: [ruby-dev:33267] Re: exhaustive test for bignum.c

In article <e0b1e5700801210556o2b0cf7aehe8438da12fb2b016@mail.gmail.com>,
  "Yusuke ENDOH" <mame@tsg.ne.jp> writes:

> test_bignum.rb にテストを追加して網羅性を上げてみました。
> gcov での bignum.c のカバレッジが 50% から 90% になります。
> どうでしょうか。

rational を require した状態だとテストがふたつ失敗するようで、
test-all での失敗が増えています。
http://www.rubyist.net/~akr/chkbuild/debian-sarge/ruby-trunk/log/20080122T030900.diff.txt.gz

まぁ、rational が悪いような気がしますが。

% ./ruby -rrational test/ruby/test_bignum.rb
Loaded suite test/ruby/test_bignum
Started
......................../home/akr/ruby/yarvo0/lib/ruby/1.9.0/rational.rb:517: warning: in a**b, b may be too big
/home/akr/ruby/yarvo0/lib/ruby/1.9.0/rational.rb:517: warning: in a**b, b may be too big
F.F......test/ruby/test_bignum.rb:162: warning: Bignum out of Float range
....
Finished in 2.752199378 seconds.

  1) Failure:
test_pow(TestBignum) [test/ruby/test_bignum.rb:252]:
<TypeError> exception expected but was
Class: <ArgumentError>
Message: <"comparison of String with 0 failed">
---Backtrace---
/home/akr/ruby/yarvo0/lib/ruby/1.9.0/rational.rb:516:in `>='
/home/akr/ruby/yarvo0/lib/ruby/1.9.0/rational.rb:516:in `rpower'
test/ruby/test_bignum.rb:252:in `block in test_pow'
test/ruby/test_bignum.rb:252:in `test_pow'
---------------

  2) Failure:
test_quo(TestBignum) [test/ruby/test_bignum.rb:239]:
<TypeError> exception expected but was
Class: <NoMethodError>
Message: <"undefined method `coerce' for \"foo\":String">
---Backtrace---
/home/akr/ruby/yarvo0/lib/ruby/1.9.0/rational.rb:204:in `/'
/home/akr/ruby/yarvo0/lib/ruby/1.9.0/rational.rb:510:in `quo'
test/ruby/test_bignum.rb:239:in `block in test_quo'
test/ruby/test_bignum.rb:239:in `test_quo'
---------------

37 tests, 294 assertions, 2 failures, 0 errors
-- 
[田中 哲][たなか あきら][Tanaka Akira]