3 files changed, 69 insertions, 0 deletions
diff --git a/test/files/neg/t7285.check b/test/files/neg/t7285.check
new file mode 100644
index 0000000000..108f4292a8
--- /dev/null
+++ b/test/files/neg/t7285.check
@@ -0,0 +1,13 @@
+t7285.scala:15: error: match may not be exhaustive.
+It would fail on the following input: (Up, Down)
+      (d1, d2) match {
+      ^
+t7285.scala:33: error: match may not be exhaustive.
+It would fail on the following input: Down
+      (d1) match {
+       ^
+t7285.scala:51: error: match may not be exhaustive.
+It would fail on the following input: (Up, Down)
+    (d1, d2) match {
+    ^
+three errors found
diff --git a/test/files/neg/t7285.flags b/test/files/neg/t7285.flags
new file mode 100644
index 0000000000..e8fb65d50c
--- /dev/null
+++ b/test/files/neg/t7285.flags
@@ -0,0 +1 @@
+-Xfatal-warnings
+\ No newline at end of file
diff --git a/test/files/neg/t7285.scala b/test/files/neg/t7285.scala
new file mode 100644
index 0000000000..14121d92b1
--- /dev/null
+++ b/test/files/neg/t7285.scala
@@ -0,0 +1,55 @@
+sealed abstract class Base
+
+
+object Test1 {
+  sealed abstract class Base
+
+  object Base {
+    case object Down extends Base {
+    }
+
+    case object Up extends Base {
+    }
+
+    (d1: Base, d2: Base) =>
+      (d1, d2) match {
+        case (Up, Up) | (Down, Down) => false
+        case (Down, Up)              => true
+      }
+  }
+}
+
+object Test2 {
+  sealed abstract class Base
+
+  object Base {
+    case object Down extends Base {
+    }
+
+    case object Up extends Base {
+    }
+
+    (d1: Base, d2: Base) =>
+      (d1) match {
+        case Test2.Base.Up => false
+      }
+  }
+}
+
+
+object Test4 {
+  sealed abstract class Base
+
+  object Base {
+    case object Down extends Base
+
+    case object Up extends Base
+  }
+
+  import Test4.Base._
+  (d1: Base, d2: Base) =>
+    (d1, d2) match {
+      case (Up, Up) | (Down, Down) => false
+      case (Down, Test4.Base.Up)   => true
+    }
+}