Test for consistency of Constant#{equals, hashCode}.

For the examples I've constructed, they are consistent, but
I put this down to good luck, rather than good management.
The next commit will address this.

1 files changed, 9 insertions, 1 deletions

diff --git a/test/files/run/t6331.scala b/test/files/run/t6331.scala
index e9ed96fad3..4e43a7686e 100644
--- a/test/files/run/t6331.scala
+++ b/test/files/run/t6331.scala
@@ -15,7 +15,9 @@ object Test extends DirectTest {
     import global._
 
     def check(c1: Any, c2: Any): Unit = {
-      val equal = Constant(c1) == Constant(c2)
+      val const1 = Constant(c1)
+      val const2 = Constant(c2)
+      val equal = const1 == const2
       def show(a: Any) = "" + a + (a match {
         case _: Byte   => ".toByte"
         case _: Short  => ".toShort"
@@ -26,6 +28,12 @@ object Test extends DirectTest {
       })
       val op = if (equal) "==" else "!="
       println(f"${show(c1)}%12s $op ${show(c2)}")
+
+      val hash1 = const1.hashCode
+      val hash2 = const2.hashCode
+      val hashesEqual = hash1 == hash2
+      val hashBroken = equal && !hashesEqual
+      if (hashBroken) println(f"$hash1%12s != $hash2 // hash codes differ for equal objects!!")
     }
 
     check((), ())