diff options
Diffstat (limited to 'test/ruby/test_fixnum.rb')
| -rw-r--r-- | test/ruby/test_fixnum.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/ruby/test_fixnum.rb b/test/ruby/test_fixnum.rb index 4cf73fb4c8..f9f9052f76 100644 --- a/test/ruby/test_fixnum.rb +++ b/test/ruby/test_fixnum.rb @@ -29,8 +29,40 @@ class TestFixnum < Test::Unit::TestCase assert_equal(0x4000000000000000, 0x3fffffffffffffff.succ, "[ruby-dev:31190]") end + def test_pred + assert_equal(-0x40000001, (-0x40000000).pred) + assert_equal(-0x4000000000000001, (-0x4000000000000000).pred) + end + def test_plus + assert_equal(0x40000000, 0x3fffffff+1) assert_equal(0x4000000000000000, 0x3fffffffffffffff+1) + assert_equal(-0x40000001, (-0x40000000)+(-1)) + assert_equal(-0x4000000000000001, (-0x4000000000000000)+(-1)) + assert_equal(-0x80000000, (-0x40000000)+(-0x40000000)) + end + + def test_sub + assert_equal(0x40000000, 0x3fffffff-(-1)) + assert_equal(0x4000000000000000, 0x3fffffffffffffff-(-1)) + assert_equal(-0x40000001, (-0x40000000)-1) + assert_equal(-0x4000000000000001, (-0x4000000000000000)-1) + assert_equal(-0x80000000, (-0x40000000)-0x40000000) end + def test_mult + assert_equal(0x40000000, 0x20000000*2) + assert_equal(0x4000000000000000, 0x2000000000000000*2) + assert_equal(-0x40000001, 33025*(-32513)) + assert_equal(-0x4000000000000001, 1380655685*(-3340214413)) + assert_equal(0x40000000, (-0x40000000)*(-1)) + end + + def test_div + assert_equal(0x40000000, 0xc0000000/3) + assert_equal(0x4000000000000000, 0xc000000000000000/3) + assert_equal(-0x40000001, 0xc0000003/(-3)) + assert_equal(-0x4000000000000001, 0xc000000000000003/(-3)) + assert_equal(0x40000000, (-0x40000000)/(-1), "[ruby-dev:31210]") + end end |