diff options
Diffstat (limited to 'test/stringio')
-rw-r--r-- | test/stringio/test_stringio.rb | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/test/stringio/test_stringio.rb b/test/stringio/test_stringio.rb index e0b4504b54..144a9f4292 100644 --- a/test/stringio/test_stringio.rb +++ b/test/stringio/test_stringio.rb @@ -757,6 +757,15 @@ class TestStringIO < Test::Unit::TestCase assert_equal("b""\0""a", s.string) end + def test_ungetc_fill + count = 100 + s = StringIO.new + s.print 'a' * count + s.ungetc('b' * (count * 5)) + assert_equal((count * 5), s.string.size) + assert_match(/\Ab+\z/, s.string) + end + def test_ungetbyte_pos b = '\\b00010001 \\B00010001 \\b1 \\B1 \\b000100011' s = StringIO.new( b ) @@ -782,6 +791,15 @@ class TestStringIO < Test::Unit::TestCase assert_equal("b""\0""a", s.string) end + def test_ungetbyte_fill + count = 100 + s = StringIO.new + s.print 'a' * count + s.ungetbyte('b' * (count * 5)) + assert_equal((count * 5), s.string.size) + assert_match(/\Ab+\z/, s.string) + end + def test_frozen s = StringIO.new s.freeze @@ -825,18 +843,17 @@ class TestStringIO < Test::Unit::TestCase end def test_overflow - omit if RbConfig::SIZEOF["void*"] > RbConfig::SIZEOF["long"] + return if RbConfig::SIZEOF["void*"] > RbConfig::SIZEOF["long"] limit = RbConfig::LIMITS["INTPTR_MAX"] - 0x10 assert_separately(%w[-rstringio], "#{<<-"begin;"}\n#{<<-"end;"}") begin; limit = #{limit} ary = [] - while true + begin x = "a"*0x100000 break if [x].pack("p").unpack("i!")[0] < 0 ary << x - omit if ary.size > 100 - end + end while ary.size <= 100 s = StringIO.new(x) s.gets("xxx", limit) assert_equal(0x100000, s.pos) |