tests: add some base tests

[nit.git] / tests / base_isa_formal_type.nit

diff --git a/tests/base_isa_formal_type.nit b/tests/base_isa_formal_type.nit
new file mode 100644 (file)
index 0000000..855298f
--- /dev/null
+++ b/tests/base_isa_formal_type.nit
@@ -0,0 +1,63 @@
+# 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[T]
+       type U: Object
+       fun testT(o: Object): Bool do return o isa T
+       fun testU(o: Object): Bool do return o isa U
+
+       fun get_c: C[U,T] do return new C[U,T]
+
+       fun testall
+       do
+               self.testT(1).output
+               self.testT(true).output
+               self.testU(1).output
+               self.testU(true).output
+               var c = get_c
+               c.testT(1).output
+               c.testT(true).output
+               c.testU(1).output
+               c.testU(true).output
+               '\n'.output
+       end
+end
+
+class B
+       super A[Int]
+       redef type U: Bool
+       fun foo: A[Bool] do return get_c
+end
+
+class C[V, W]
+       super A[V]
+       redef type U: W
+       fun foo: A[W] do return get_c
+end
+
+var ao = new A[Object]
+var ai = new A[Int]
+var b = new B
+var coo = new C[Object, Object]
+var cib = new C[Int, Bool]
+
+ao.testall
+ai.testall
+b.testall
+b.foo.testall
+coo.testall
+cib.testall
+cib.foo.testall