--- /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.
+
+# Performance test for Array::add_all
+
+import standard::collection
+
+var a = new Array[Numeric]
+var b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+for i in 10000.times do
+ a.add_all b
+end
+
+var c = [1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0]
+for i in 10000.times do
+ a.add_all c
+end
+
+a.length.output