diff --git a/analytics/src/test/java/com/ning/billing/analytics/utils/TestRounder.java b/analytics/src/test/java/com/ning/billing/analytics/utils/TestRounder.java
new file mode 100644
index 0000000..b3414d7
--- /dev/null
+++ b/analytics/src/test/java/com/ning/billing/analytics/utils/TestRounder.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2010-2011 Ning, Inc.
+ *
+ * Ning licenses this file to you under the Apache License, version 2.0
+ * (the "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.ning.billing.analytics.utils;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+import java.math.BigDecimal;
+
+public class TestRounder
+{
+ @Test(groups = "fast")
+ public void testRound() throws Exception
+ {
+ Assert.assertEquals(Rounder.round(null), 0.0);
+ Assert.assertEquals(Rounder.round(BigDecimal.ZERO), 0.0);
+ Assert.assertEquals(Rounder.round(BigDecimal.ONE), 1.0);
+ Assert.assertEquals(Rounder.round(BigDecimal.TEN), 10.0);
+ Assert.assertEquals(Rounder.round(BigDecimal.valueOf(1.33333)), 1.3333);
+ Assert.assertEquals(Rounder.round(BigDecimal.valueOf(4444.33333)), 4444.3333);
+ Assert.assertEquals(Rounder.round(BigDecimal.valueOf(10.11111)), 10.1111);
+ Assert.assertEquals(Rounder.round(BigDecimal.valueOf(10.11115)), 10.1112);
+ Assert.assertEquals(Rounder.round(BigDecimal.valueOf(10.11116)), 10.1112);
+ }
+}
