Add a test for r35863.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35867 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 0 deletions

diff --git a/test/-ext-/string/test_enc_str_buf_cat.rb b/test/-ext-/string/test_enc_str_buf_cat.rb
new file mode 100644
index 0000000000..9582fe268c
--- /dev/null
+++ b/test/-ext-/string/test_enc_str_buf_cat.rb
@@ -0,0 +1,15 @@
+require 'test/unit'
+require "-test-/string/string"
+
+class Test_StringEncStrBufCat < Test::Unit::TestCase
+  Bug6509 = '[ruby-dev:45688]'
+
+  def test_unknown
+    a8_str = "a\xBE".force_encoding(Encoding::ASCII_8BIT)
+    cr_unknown_str = [0x62].pack('C*')
+    assert_equal(true, a8_str.valid_encoding?, "an assertion for following tests")
+    assert_equal(:valid, Bug::String.new(a8_str).coderange, "an assertion for following tests")
+    assert_equal(:unknown, Bug::String.new(cr_unknown_str).coderange, "an assertion for following tests")
+    assert_equal(:valid, Bug::String.new(a8_str).enc_str_buf_cat(cr_unknown_str).coderange, Bug6509)
+  end
+end