1 files changed, 38 insertions, 0 deletions
diff --git a/tests/pos/i1318.scala b/tests/pos/i1318.scala
new file mode 100644
index 000000000..dfb882825
--- /dev/null
+++ b/tests/pos/i1318.scala
@@ -0,0 +1,38 @@
+object Foo {
+  class S(i: Int)
+  case class T(i: Int) extends S(i)
+
+  object T {
+    def unapply(s: S): Option[(Int, Int)] = Some(5, 6)
+    // def unapply(o: Object): Option[(Int, Int, Int)] = Some(5, 6, 7)
+  }
+
+  val s = new S(5)
+
+  s match {
+    // case T(x, y, z) => println(x + y + z)
+    case T(x, y) => println(x + y)
+    case T(x) => println(x)
+    case _ => println("not match")
+  }
+}
+
+object Bar {
+  case class T(i: Int)
+  class S(i: Int) extends T(i)
+
+  object T {
+    def unapply(s: S): Option[(Int, Int)] = Some(5, 6)
+    // def unapply(o: Object): Option[(Int, Int, Int)] = Some(5, 6, 7)
+  }
+
+  val s = new S(5)
+
+  s match {
+    // case T(x, y, z) => println(x + y + z)
+    case T(x, y) => println(x + y)
+    case T(x) => println(x)
+    case _ => println("not match")
+  }
+}
+