diff options
Diffstat (limited to 'test/-ext-')
-rw-r--r-- | test/-ext-/string/test_set_len.rb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/-ext-/string/test_set_len.rb b/test/-ext-/string/test_set_len.rb index 1c5252a5f6..58f51012fb 100644 --- a/test/-ext-/string/test_set_len.rb +++ b/test/-ext-/string/test_set_len.rb @@ -23,4 +23,13 @@ class Test_StrSetLen < Test::Unit::TestCase assert_equal("abc", @s1.set_len(3)) } end + + def test_capacity_equals_to_new_size + bug12757 = "[ruby-core:77257] [Bug #12757]" + # fill to ensure capacity does not decrease with force_encoding + str = Bug::String.new("\x00" * 128, capacity: 128) + str.force_encoding("UTF-32BE") + assert_equal 128, Bug::String.capacity(str) + assert_equal 127, str.set_len(127).bytesize, bug12757 + end end |