tests: adding contract testing files

[nit.git] / tests / contracts_inheritance.nit

diff --git a/tests/contracts_inheritance.nit b/tests/contracts_inheritance.nit
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+++ b/tests/contracts_inheritance.nit
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+# 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.
+
+# Check usage of contract on a diamond inheritance
+
+class ArrayInt
+       super Array[Int]
+
+       fun toto(e: Int)
+       do
+               print "toto ArrayInt"
+       end
+end
+
+
+class MyArrayInt
+       super ArrayInt
+
+       redef fun toto(e)
+       is
+               ensures(e == 12)
+       do
+               print "toto MyArrayInt"
+               super e
+       end
+end
+
+class MyArrayInt2
+       super ArrayInt
+
+       redef fun toto(e)
+       is
+               ensures(e == 11)
+       do
+               print "toto MyArrayInt2"
+               super e
+               print "Good"
+       end
+end
+
+class MySubArray
+       super MyArrayInt
+       super MyArrayInt2
+end
+
+var test = new MySubArray
+test.toto(11)# fail contract on MyArrayInt define e == 12