tests: add base_orelse.nit

[nit.git] / tests / base_orelse.nit

diff --git a/tests/base_orelse.nit b/tests/base_orelse.nit
new file mode 100644 (file)
index 0000000..c02495c
--- /dev/null
+++ b/tests/base_orelse.nit
@@ -0,0 +1,67 @@
+# 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.
+
+import kernel
+
+class A
+       readable writable var _i: Int
+end
+
+var a: nullable A = new A(1)
+var na: nullable A = null
+
+var oa: A
+
+do
+       var b = a or else new A(2)
+       b.i.output
+       oa = b
+end
+
+do
+       var b = na or else new A(3)
+       b.i.output
+       oa = b
+end
+
+do
+       var b = na or else a
+       b.i.output
+       #alt1#oa = b
+end
+
+do
+       var b = a or else na
+       b.i.output
+       #alt2#oa = b
+end
+
+do
+       var na2 = na
+       var b = na or else na2 or else new A(4)
+       b.i.output
+       oa = b
+end
+
+do
+       var b = na or else a or else new A(5)
+       b.i.output
+       oa = b
+end
+
+do
+       var b = a or else na or else new A(6)
+       b.i.output
+       oa = b
+end