--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Checks if `RopeBuffer.clear` actually reset everything.
+module test_ropes_buffer_clear
+
+import standard
+
+var buffer = new RopeBuffer
+
+buffer.append "1"
+# Force to flush the internal buffer, so that all the internal positions will be
+# set to a non-zero value.
+buffer.append("?" * (maxlen + 1))
+buffer.clear
+buffer.append "23"
+print buffer
+
+buffer = new RopeBuffer
+buffer.append "12"
+# Force to flush the internal buffer, so that all the internal positions will be
+# set to a non-zero value.
+buffer.append("?" * (maxlen + 1))
+buffer.clear
+buffer.append "3"
+print buffer