1 files changed, 11 insertions, 0 deletions
diff --git a/test.rb b/test.rb
index 1ffb570..52b3b80 100755
--- a/test.rb
+++ b/test.rb
@@ -32,6 +32,17 @@ class MahoroTestCase < Test::Unit::TestCase
                               @m.buffer(File.read('mahoro.c')))
          end
  
+        def test_buffer_string_convert
+                tmp = File.read('mahoro.c')
+                buf = Struct.new(:to_str).new(tmp)
+                assert_equal('ASCII C program text', @m.buffer(buf))
+        end
+
+        def test_buffer_invalid
+                @m.flags = Mahoro::NONE
+                assert_raises(TypeError) { @m.buffer @m }
+        end
+
          def test_mime_buffer
                  @m.flags = Mahoro::MIME
                  assert({