add test set for exhaustivity and redundancy check

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/patmat/t9677.scala b/tests/patmat/t9677.scala
new file mode 100644
index 000000000..1e9b1df5e
--- /dev/null
+++ b/tests/patmat/t9677.scala
@@ -0,0 +1,23 @@
+sealed abstract class Base
+
+sealed trait A extends Base
+
+object A {
+
+  case object Root extends Base
+
+  def apply(param: String): A = {
+      new A {}
+  }
+}
+
+object ExhaustiveMatchWarning {
+
+  def test: Unit = {
+    val b: Base = A("blabla")
+    b match {
+      case A.Root => println("Root")
+      case path: A => println("Not root")
+    }
+  }
+}
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