diff options
Diffstat (limited to 'test/bigdecimal/test_bigdecimal.rb')
| -rw-r--r-- | test/bigdecimal/test_bigdecimal.rb | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb index d440e4cedb..6694697e0e 100644 --- a/test/bigdecimal/test_bigdecimal.rb +++ b/test/bigdecimal/test_bigdecimal.rb @@ -540,15 +540,35 @@ class TestBigDecimal < Test::Unit::TestCase assert_kind_of(Float, x .to_f) assert_kind_of(Float, (-x).to_f) + bug6944 = '[ruby-core:47342]' + BigDecimal.mode(BigDecimal::EXCEPTION_UNDERFLOW, true) - assert_raise(FloatDomainError) { - BigDecimal("1e#{Float::MIN_10_EXP - 2*Float::DIG}").to_f } - assert_raise(FloatDomainError) { - BigDecimal("-1e#{Float::MIN_10_EXP - 2*Float::DIG}").to_f } + x = "1e#{Float::MIN_10_EXP - 2*Float::DIG}" + assert_raise(FloatDomainError, x) {BigDecimal(x).to_f} + x = "-#{x}" + assert_raise(FloatDomainError, x) {BigDecimal(x).to_f} + x = "1e#{Float::MIN_10_EXP - Float::DIG}" + assert_nothing_raised(FloatDomainError, x) { + assert_in_delta(0.0, BigDecimal(x).to_f, 10**Float::MIN_10_EXP, bug6944) + } + x = "-#{x}" + assert_nothing_raised(FloatDomainError, x) { + assert_in_delta(0.0, BigDecimal(x).to_f, 10**Float::MIN_10_EXP, bug6944) + } BigDecimal.mode(BigDecimal::EXCEPTION_UNDERFLOW, false) - assert_equal( 0.0, BigDecimal("1e#{Float::MIN_10_EXP - 2*Float::DIG}").to_f) - assert_equal(-0.0, BigDecimal("-1e#{Float::MIN_10_EXP - 2*Float::DIG}").to_f) + x = "1e#{Float::MIN_10_EXP - 2*Float::DIG}" + assert_equal( 0.0, BigDecimal(x).to_f, x) + x = "-#{x}" + assert_equal(-0.0, BigDecimal(x).to_f, x) + x = "1e#{Float::MIN_10_EXP - Float::DIG}" + assert_nothing_raised(FloatDomainError, x) { + assert_in_delta(0.0, BigDecimal(x).to_f, 10**Float::MIN_10_EXP, bug6944) + } + x = "-#{x}" + assert_nothing_raised(FloatDomainError, x) { + assert_in_delta(0.0, BigDecimal(x).to_f, 10**Float::MIN_10_EXP, bug6944) + } end def test_coerce |