From 6c39009771d3c9169f66e8a65b5d8f996d5c6e1f Mon Sep 17 00:00:00 2001
From: Andrew Waterman
Date: Thu, 14 Mar 2019 02:04:23 -0700
Subject: Add width constraint to PopCount test (which currently fails)

---
 src/test/scala/chiselTests/PopCount.scala | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/test/scala/chiselTests/PopCount.scala b/src/test/scala/chiselTests/PopCount.scala
index 2c144382..d9b3b837 100644
--- a/src/test/scala/chiselTests/PopCount.scala
+++ b/src/test/scala/chiselTests/PopCount.scala
@@ -16,6 +16,8 @@ class PopCountTester(n: Int) extends BasicTester {
   val result = PopCount(x.asBools)
   val expected = x.asBools.foldLeft(0.U)(_ +& _)
   assert(result === expected)
+
+  require(result.getWidth == BigInt(n).bitLength)
 }
 
 class PopCountSpec extends ChiselPropSpec {
-- 
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