* enc/unicode.c: Artificial mapping to test buffer expansion code.

* string.c: Fixed buffer expansion logic.
* test/ruby/enc/test_case_mapping.rb: Tests for above.
(with Kimihito Matsui)


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53554 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 13 insertions, 1 deletions

diff --git a/test/ruby/enc/test_case_mapping.rb b/test/ruby/enc/test_case_mapping.rb
index 529e86fbaa..d42b6b1cb6 100644
--- a/test/ruby/enc/test_case_mapping.rb
+++ b/test/ruby/enc/test_case_mapping.rb
@@ -6,6 +6,18 @@ require "test/unit"
 # to test new implementation strategy
 class TestCaseMappingPreliminary < Test::Unit::TestCase
   def test_case_mapping_preliminary
-    assert_equal "yukihiro matsumoto (matz)", "Yukihiro MATSUMOTO (MATZ)".downcase(:lithuanian)
+    assert_equal 'yukihiro matsumoto (matz)',
+                 'Yukihiro MATSUMOTO (MATZ)'.downcase(:lithuanian)
+    assert_equal 'matsumoto yukTURKISH*ıhTURKISH*ıro (matz)',
+                 'MATSUMOTO YUKIHIRO (MATZ)'.downcase(:turkic, :lithuanian)
+  end
+
+  def test_buffer_allocations
+    assert_equal 'TURKISH*ı'*10, ('I'*10).downcase(:turkic, :lithuanian)
+    assert_equal 'TURKISH*ı'*100, ('I'*100).downcase(:turkic, :lithuanian)
+    assert_equal 'TURKISH*ı'*1_000, ('I'*1_000).downcase(:turkic, :lithuanian)
+    assert_equal 'TURKISH*ı'*10_000, ('I'*10_000).downcase(:turkic, :lithuanian)
+    assert_equal 'TURKISH*ı'*100_000, ('I'*100_000).downcase(:turkic, :lithuanian)
+    assert_equal 'TURKISH*ı'*1_000_000, ('I'*1_000_000).downcase(:turkic, :lithuanian)
   end
 end