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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2010-08-05 07:42:47 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2010-08-05 07:42:47 +0000
commit8965ed167dbca9471ccc41e9bebe7e2fb1fa9fcb (patch)
treeb086b7e2c428e01fa6c9f881f876640af854cda3 /test/-ext-/string
parent5425f8fe6ead9c2b57547cc64f5b4316fc86bdf1 (diff)
* string.c (rb_str_set_len): should fail to modify shared string.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28865 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/-ext-/string')
-rw-r--r--test/-ext-/string/test_set_len.rb25
1 files changed, 25 insertions, 0 deletions
diff --git a/test/-ext-/string/test_set_len.rb b/test/-ext-/string/test_set_len.rb
new file mode 100644
index 00000000000..e257cacb832
--- /dev/null
+++ b/test/-ext-/string/test_set_len.rb
@@ -0,0 +1,25 @@
+require 'test/unit'
+require "-test-/string/string"
+
+class Test_StrSetLen < Test::Unit::TestCase
+ def setup
+ @s0 = [*"a".."z"].join("").freeze
+ @s1 = Bug::String.new(@s0)
+ end
+
+ def teardown
+ orig = [*"a".."z"].join("")
+ assert_equal(orig, @s0)
+ end
+
+ def test_non_shared
+ @s1.modify!
+ assert_equal("abc", @s1.set_len(3))
+ end
+
+ def test_shared
+ assert_raise(RuntimeError) {
+ assert_equal("abc", @s1.set_len(3))
+ }
+ end
+end