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| author | mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-09-18 13:48:21 +0000 |
|---|---|---|
| committer | mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-09-18 13:48:21 +0000 |
| commit | 727ab0e5061ff5ced6eafbad6669eede689cac8d (patch) | |
| tree | fcb65b075c03c004c9c6945190940a539a95f38e /test/bigdecimal | |
| parent | 25206d3cc3a1838cc5ffe4299d73c2e2d4eff922 (diff) | |
| download | ruby-727ab0e5061ff5ced6eafbad6669eede689cac8d.tar.gz ruby-727ab0e5061ff5ced6eafbad6669eede689cac8d.tar.xz ruby-727ab0e5061ff5ced6eafbad6669eede689cac8d.zip | |
* ext/bigdecimal/bigdecimal.c (VpCtoV): 1E1000...000 is interpreted as
Infinity. [ruby-dev:36159]
* ext/bigdecimal/bigdecimal.c (VpPower): Infinity ** 1 returns
Infinity instead of NaN. [ruby-dev:36159]
* test/bigdecimal/test_bigdecimal.rb: add tests for above.
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@19419 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/bigdecimal')
| -rw-r--r-- | test/bigdecimal/test_bigdecimal.rb | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb index c3899033e..e9d1d0bdb 100644 --- a/test/bigdecimal/test_bigdecimal.rb +++ b/test/bigdecimal/test_bigdecimal.rb @@ -595,7 +595,18 @@ class TestBigDecimal < Test::Unit::TestCase assert_equal(BigDecimal.new("-Infinity"), BigDecimal.new("-0") ** -1) BigDecimal.mode(BigDecimal::EXCEPTION_NaN, false) assert_equal(true, (BigDecimal.new("NaN") ** 1).nan?) - assert_equal(true, (BigDecimal.new("Infinity") ** 1).nan?) # OK? + + assert_equal(BigDecimal::SIGN_POSITIVE_INFINITE, (BigDecimal.new("Infinity") ** 2).sign) + assert_equal(BigDecimal::SIGN_POSITIVE_INFINITE, (BigDecimal.new("Infinity") ** 1).sign) + assert_equal(1, BigDecimal.new("Infinity") ** 0) + assert_equal(BigDecimal::SIGN_POSITIVE_ZERO, (BigDecimal.new("Infinity") ** -1).sign) + assert_equal(BigDecimal::SIGN_POSITIVE_ZERO, (BigDecimal.new("Infinity") ** -2).sign) + + assert_equal(BigDecimal::SIGN_POSITIVE_INFINITE, (BigDecimal.new("-Infinity") ** 2).sign) + assert_equal(BigDecimal::SIGN_NEGATIVE_INFINITE, (BigDecimal.new("-Infinity") ** 1).sign) + assert_equal(1, BigDecimal.new("-Infinity") ** 0) + assert_equal(BigDecimal::SIGN_NEGATIVE_ZERO, (BigDecimal.new("-Infinity") ** -1).sign) + assert_equal(BigDecimal::SIGN_POSITIVE_ZERO, (BigDecimal.new("-Infinity") ** -2).sign) end def test_limit @@ -676,6 +687,10 @@ class TestBigDecimal < Test::Unit::TestCase assert_equal(10, BigDecimal.new("1E+1")) assert_equal(1, BigDecimal.new("+1")) BigDecimal.mode(BigDecimal::EXCEPTION_OVERFLOW, false) - assert_equal(0, BigDecimal.new("1E1" + "0" * 100)) # OK? must it be inf? + + assert_equal(BigDecimal::SIGN_POSITIVE_INFINITE, BigDecimal.new("1E1" + "0" * 10000).sign) + assert_equal(BigDecimal::SIGN_NEGATIVE_INFINITE, BigDecimal.new("-1E1" + "0" * 10000).sign) + assert_equal(BigDecimal::SIGN_POSITIVE_ZERO, BigDecimal.new("1E-1" + "0" * 10000).sign) + assert_equal(BigDecimal::SIGN_NEGATIVE_ZERO, BigDecimal.new("-1E-1" + "0" * 10000).sign) end end |