diff options
Diffstat (limited to 'test/bigdecimal/test_bigdecimal.rb')
| -rw-r--r-- | test/bigdecimal/test_bigdecimal.rb | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb index 02a067a810..2efa65b57b 100644 --- a/test/bigdecimal/test_bigdecimal.rb +++ b/test/bigdecimal/test_bigdecimal.rb @@ -612,6 +612,18 @@ class TestBigDecimal < Test::Unit::TestCase assert_equal(3, x.round(0, BigDecimal::ROUND_CEILING)) assert_equal(2, x.round(0, BigDecimal::ROUND_FLOOR)) assert_raise(TypeError) { x.round(0, 256) } + + 15.times do |n| + x = BigDecimal.new("5#{'0'*n}1") + assert_equal(10**(n+2), x.round(-(n+2), BigDecimal::ROUND_HALF_DOWN)) + assert_equal(10**(n+2), x.round(-(n+2), BigDecimal::ROUND_HALF_EVEN)) + x = BigDecimal.new("0.5#{'0'*n}1") + assert_equal(1, x.round(0, BigDecimal::ROUND_HALF_DOWN)) + assert_equal(1, x.round(0, BigDecimal::ROUND_HALF_EVEN)) + x = BigDecimal.new("-0.5#{'0'*n}1") + assert_equal(-1, x.round(0, BigDecimal::ROUND_HALF_DOWN)) + assert_equal(-1, x.round(0, BigDecimal::ROUND_HALF_EVEN)) + end end def test_truncate |