diff --git a/core/api/src/test/java/org/onlab/onos/VersionTest.java b/core/api/src/test/java/org/onlab/onos/VersionTest.java
new file mode 100644
index 0000000..e357f9d
--- /dev/null
+++ b/core/api/src/test/java/org/onlab/onos/VersionTest.java
@@ -0,0 +1,50 @@
+package org.onlab.onos;
+
+import com.google.common.testing.EqualsTester;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+import static org.onlab.onos.Version.version;
+
+/**
+ * Tests of the version descriptor.
+ */
+public class VersionTest {
+
+    @Test
+    public void fromParts() {
+        Version v = version(1, 2, 3, "4321");
+        assertEquals("wrong major", 1, v.major());
+        assertEquals("wrong minor", 2, v.minor());
+        assertEquals("wrong patch", 3, v.patch());
+        assertEquals("wrong build", "4321", v.build());
+    }
+
+    @Test
+    public void fromString() {
+        Version v = version("1.2.3.4321");
+        assertEquals("wrong major", 1, v.major());
+        assertEquals("wrong minor", 2, v.minor());
+        assertEquals("wrong patch", 3, v.patch());
+        assertEquals("wrong build", "4321", v.build());
+    }
+
+    @Test
+    public void snapshot() {
+        Version v = version("1.2.3-SNAPSHOT");
+        assertEquals("wrong major", 1, v.major());
+        assertEquals("wrong minor", 2, v.minor());
+        assertEquals("wrong patch", 3, v.patch());
+        assertEquals("wrong build", "SNAPSHOT", v.build());
+    }
+
+    @Test
+    public void testEquals() {
+        new EqualsTester()
+                .addEqualityGroup(version("1.2.3.4321"), version(1, 2, 3, "4321"))
+                .addEqualityGroup(version("1.9.3.4321"), version(1, 9, 3, "4321"))
+                .addEqualityGroup(version("1.2.8.4321"), version(1, 2, 8, "4321"))
+                .addEqualityGroup(version("1.2.3.x"), version(1, 2, 3, "x"))
+                .testEquals();
+    }
+}
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