diff --git a/utils/misc/src/test/java/org/onlab/util/CounterTest.java b/utils/misc/src/test/java/org/onlab/util/CounterTest.java
index cb085bb..124a571 100644
--- a/utils/misc/src/test/java/org/onlab/util/CounterTest.java
+++ b/utils/misc/src/test/java/org/onlab/util/CounterTest.java
@@ -17,6 +17,8 @@
 
 import org.junit.Test;
 
+import com.google.common.testing.EqualsTester;
+
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.onlab.junit.TestTools.delay;
@@ -81,4 +83,28 @@
         assertEquals("incorrect duration", 1, tt.duration(), 0.1);
         assertEquals("incorrect throughput", 1000, tt.throughput(), 1.0);
     }
+
+    @Test
+    public void equals() {
+        long start = 100L;
+        long total = 300L;
+        long end = 200L;
+        Counter tt = new Counter(start, total, end);
+        Counter same = new Counter(start, total, end);
+        Counter diff = new Counter(300L, 700L, 400L);
+        new EqualsTester()
+                .addEqualityGroup(tt, same)
+                .addEqualityGroup(400)
+                .addEqualityGroup("")
+                .addEqualityGroup(diff);
+
+    }
+
+    @Test
+    public void toStringTest() {
+        Counter tt = new Counter(100L, 300L, 200L);
+        assertEquals("Counter{total=300, start=100, end=200}", tt.toString());
+        Counter another = new Counter(200L, 500L, 300L);
+        assertEquals("Counter{total=500, start=200, end=300}", another.toString());
+    }
 }