diff options
Diffstat (limited to 'test/stringio/test_stringio.rb')
-rw-r--r-- | test/stringio/test_stringio.rb | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/stringio/test_stringio.rb b/test/stringio/test_stringio.rb index bf3a9eeb1b..ce84800d4b 100644 --- a/test/stringio/test_stringio.rb +++ b/test/stringio/test_stringio.rb @@ -680,4 +680,16 @@ class TestStringIO < Test::Unit::TestCase StringIO.new {} end end + + def test_overflow + limit = (1 << (RbConfig::SIZEOF["size_t"]*8-1)) - 0x10 + assert_separately(%w[-rstringio], "#{<<-"begin;"}\n#{<<-"end;"}") + begin; + limit = #{limit} + x = ("a"*0x100000) + s = StringIO.new(x) + s.gets("xxx", limit) + assert_equal(0x100000, s.pos) + end; + end end |