diff options
Diffstat (limited to 'test/ruby/test_fixnum.rb')
-rw-r--r-- | test/ruby/test_fixnum.rb | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/ruby/test_fixnum.rb b/test/ruby/test_fixnum.rb index 4567da0a60..85c8bdfa7b 100644 --- a/test/ruby/test_fixnum.rb +++ b/test/ruby/test_fixnum.rb @@ -279,4 +279,23 @@ class TestFixnum < Test::Unit::TestCase def test_frozen assert_equal(true, 1.frozen?) end + + def assert_eql(a, b, mess) + assert a.eql?(b), "expected #{a} & #{b} to be eql? #{mess}" + end + + def test_power_of_1_and_minus_1 + bug5715 = '[ruby-core:41498]' + big = 1 << 66 + assert_eql 1, 1 ** -big , bug5715 + assert_eql 1, (-1) ** -big , bug5715 + assert_eql -1, (-1) ** -(big+1) , bug5715 + end + + def test_power_of_0 + bug5713 = '[ruby-core:41494]' + big = 1 << 66 + assert_raise(ZeroDivisionError, bug5713) { 0 ** -big } + assert_raise(ZeroDivisionError, bug5713) { 0 ** Rational(-2,3) } + end end |