Organized imports for test classes

Change-Id: I2e813769b4036be4a125f9e92c58896c1893d13f
diff --git a/src/test/java/net/onrc/onos/apps/bgproute/PrefixTest.java b/src/test/java/net/onrc/onos/apps/bgproute/PrefixTest.java
index a5857a4..3b9bef2 100644
--- a/src/test/java/net/onrc/onos/apps/bgproute/PrefixTest.java
+++ b/src/test/java/net/onrc/onos/apps/bgproute/PrefixTest.java
@@ -1,6 +1,8 @@
 package net.onrc.onos.apps.bgproute;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 
 import java.util.Arrays;