1 files changed, 17 insertions, 0 deletions
diff --git a/test/unit/lib/redmine/codeset_util_test.rb b/test/unit/lib/redmine/codeset_util_test.rb
index aaf664047..56094ecfa 100644
--- a/test/unit/lib/redmine/codeset_util_test.rb
+++ b/test/unit/lib/redmine/codeset_util_test.rb
@@ -101,4 +101,21 @@ class Redmine::CodesetUtilTest < ActiveSupport::TestCase
     assert_equal "UTF-8", s2.encoding.to_s
     assert_equal 'こんにち?', s2
   end
+
+  def test_guess_encoding_should_return_guessed_encoding
+    str = '日本語'.encode('Windows-31J').b
+    with_settings :repositories_encodings => 'UTF-8,Windows-31J' do
+      assert_equal 'Windows-31J', Redmine::CodesetUtil.guess_encoding(str)
+    end
+    with_settings :repositories_encodings => 'UTF-8,csWindows31J' do
+      assert_equal 'csWindows31J', Redmine::CodesetUtil.guess_encoding(str)
+    end
+  end
+
+  def guess_encoding_should_return_nil_if_cannot_guess_encoding
+    str = '日本語'.encode('Windows-31J').b
+    with_settings :repositories_encodings => 'UTF-8,EUC-JP' do
+      assert_nil Redmine::CodesetUtil.guess_encoding(str)
+    end
+  end
 end