From f16141517aaafa8917dbe677e73e00bd652767ff Mon Sep 17 00:00:00 2001
From: Jon Seymour <jon.seymour@gmail.com>
Date: Sat, 24 Mar 2012 00:22:07 +1100
Subject: [PATCH] Add a test that a degenerate domain does not cause histogram
 to barf.

Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
---
 test/layout/histogram-test.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/layout/histogram-test.js b/test/layout/histogram-test.js
index 7854a9c1..4b1f5128 100644
--- a/test/layout/histogram-test.js
+++ b/test/layout/histogram-test.js
@@ -68,6 +68,10 @@ suite.addBatch({
         {x: 1, y: 1, dx: 1},
         {x: 2, y: 2, dx: 1}
       ]);
+    },
+    "can handle degenerate domain": function(histogram) {
+      var h = histogram().bins(d3.scale.linear().domain([0,0]).ticks(3));
+      assert.deepEqual(h([0]), []);
     }
   }
 });