1 files changed, 16 insertions, 0 deletions
diff --git a/tests/untried/neg/t7850.scala b/tests/untried/neg/t7850.scala
new file mode 100644
index 000000000..794ce2eb0
--- /dev/null
+++ b/tests/untried/neg/t7850.scala
@@ -0,0 +1,16 @@
+// isEmpty returns non-boolean
+class Casey(a: Int) { def isEmpty = this; def get = this }
+object Casey { def unapply(a: Casey) = a }
+
+// no isEmpty method at all
+class Dingy(a: Int) { def get = this }
+object Dingy { def unapply(a: Dingy) = a }
+
+object Test {
+  def main(args: Array[String]): Unit = {
+    val Casey(x1) = new Casey(1)
+    val Dingy(x2) = new Dingy(1)
+    println(s"$x1 $x2")
+  }
+}
+