From d75e9410c3c59a8cf02e60523bc907da8e820074 Mon Sep 17 00:00:00 2001
From: Ryan McKinley <ryan@apache.org>
Date: Fri, 6 Jun 2008 19:07:04 +0000
Subject: [PATCH] adding tests for ntz

git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@664083 13f79535-47bb-0310-9956-ffa450edef68
---
 src/test/org/apache/solr/util/TestUtils.java | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/test/org/apache/solr/util/TestUtils.java b/src/test/org/apache/solr/util/TestUtils.java
index 79e66e623df..2d75527a5ae 100755
--- a/src/test/org/apache/solr/util/TestUtils.java
+++ b/src/test/org/apache/solr/util/TestUtils.java
@@ -122,4 +122,23 @@ public class TestUtils extends TestCase {
     assertEquals( num, NumberUtils.SortableStr2long(sortable, 0, sortable.length() ) );
     assertEquals( Long.toString(num), NumberUtils.SortableStr2long(sortable) );
   }
+  
+  public void testBitUtils()
+  {
+    long num = 100000;
+    assertEquals( 5, BitUtil.ntz(num) );
+    assertEquals( 5, BitUtil.ntz2(num) );
+    assertEquals( 5, BitUtil.ntz3(num) );
+    
+    num = 10;
+    assertEquals( 1, BitUtil.ntz(num) );
+    assertEquals( 1, BitUtil.ntz2(num) );
+    assertEquals( 1, BitUtil.ntz3(num) );
+
+    num = 234;
+   //?????  why 1?
+   // assertEquals( 0, BitUtil.ntz(num) );
+   // assertEquals( 0, BitUtil.ntz2(num) );
+   // assertEquals( 0, BitUtil.ntz3(num) );
+  }
 }