diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | test/bigdecimal/test_bigdecimal.rb | 6 |
2 files changed, 11 insertions, 1 deletions
@@ -1,3 +1,9 @@ +Fri Oct 17 18:16:51 2008 Yukihiro Matsumoto <matz@ruby-lang.org> + + * test/bigdecimal/test_bigdecimal.rb (TestBigDecimal#test_sqrt_bigdecimal): + test updated. a patch from TAKANO Mitsuhiro <takano32 at jus.or.jp> in + [ruby-dev:36736]. + Fri Oct 17 18:14:57 2008 Nobuyoshi Nakada <nobu@ruby-lang.org> * configure.in (uncommon.mk): ignores failures at loading. diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb index c1f67b8c90..35edc7a44a 100644 --- a/test/bigdecimal/test_bigdecimal.rb +++ b/test/bigdecimal/test_bigdecimal.rb @@ -466,7 +466,11 @@ class TestBigDecimal < Test::Unit::TestCase x = BigDecimal.new("0.09") assert_in_delta(0.3, x.sqrt(1), 0.001) x = BigDecimal.new((2**100).to_s) - assert_equal(true, x.sqrt(300).precs.last < x.sqrt(1200).precs.last) + y = BigDecimal("1125899906842624") + e = y.exponent + assert_equal(true, (x.sqrt(100) - y).abs < BigDecimal("1E#{e-100}")) + assert_equal(true, (x.sqrt(200) - y).abs < BigDecimal("1E#{e-200}")) + assert_equal(true, (x.sqrt(300) - y).abs < BigDecimal("1E#{e-300}")) x = BigDecimal.new("-" + (2**100).to_s) assert_raise(FloatDomainError) { x.sqrt(1) } x = BigDecimal.new((2**200).to_s) |