diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/stringio/test_stringio.rb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/stringio/test_stringio.rb b/test/stringio/test_stringio.rb index a3f6dfc3e8..a900362157 100644 --- a/test/stringio/test_stringio.rb +++ b/test/stringio/test_stringio.rb @@ -160,6 +160,15 @@ class TestStringIO < Test::Unit::TestCase assert_equal(Encoding::UTF_8, s.encoding, "honor the original encoding over ASCII-8BIT") end + def test_write_integer_overflow + long_max = (1 << (RbConfig::SIZEOF["long"] * 8 - 1)) - 1 + f = StringIO.new + f.pos = long_max + assert_raise(ArgumentError) { + f.write("pos + len overflows") + } + end + def test_set_encoding bug10285 = '[ruby-core:65240] [Bug #10285]' f = StringIO.new() |