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authorglass <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-12-27 11:43:02 +0000
committerglass <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-12-27 11:43:02 +0000
commitcd453f16b42ea9b68993631b27773165b24ee9b2 (patch)
treea1c01e21da4eb2ff73898ca2deb0bd86f0333386 /test
parent90833dd452c0c7276b1dd5a88ab1dd99fbb2d6a5 (diff)
* ext/stringio/stringio.c (strio_ungetc): raise IOError instead of RuntimeError
if the string is frozen. [Bug #7231] [ruby-core:48530] * ext/stringio/stringio.c (strio_ungetbyte): ditto. * test/stringio/test_stringio.rb: a test for above. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38628 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
-rw-r--r--test/stringio/test_stringio.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/test/stringio/test_stringio.rb b/test/stringio/test_stringio.rb
index 417a53b..0ea3e4f 100644
--- a/test/stringio/test_stringio.rb
+++ b/test/stringio/test_stringio.rb
@@ -504,6 +504,14 @@ class TestStringIO < Test::Unit::TestCase
assert_raise(RuntimeError, bug) {s.reopen("")}
end
+ def test_frozen_string
+ s = StringIO.new("".freeze)
+ bug = '[ruby-core:48530]'
+ assert_raise(IOError, bug) {s.write("foo")}
+ assert_raise(IOError, bug) {s.ungetc("a")}
+ assert_raise(IOError, bug) {s.ungetbyte("a")}
+ end
+
def test_readlines_limit_0
assert_raise(ArgumentError, "[ruby-dev:43392]") { StringIO.new.readlines(0) }
end