DATACASS-231 - Add ProtocolVersion to CassandraCqlClusterFactoryBean.

Original pull request: #41.
CLA: 134320150813044603 (Kirk Clemens)

spring-cql/src/test/java/org/springframework/cassandra/test/unit/config/CassandraCqlClusterFactoryBeanTest.java

@@ -0,0 +1,43 @@
+package org.springframework.cassandra.test.unit.config;
+
+import com.datastax.driver.core.ProtocolVersion;
+import org.junit.Assert;
+import org.junit.Test;
+import org.springframework.cassandra.config.CassandraCqlClusterFactoryBean;
+
+/**
+ * JUnit test case for CassandraCqlClusterFactoryBean
+ *
+ * @author Kirk Clemens
+ */
+public class CassandraCqlClusterFactoryBeanTest{
+
+	@Test
+	public void testProtocolVersion(){
+		final CassandraCqlClusterFactoryBean cassandraCqlClusterFactoryBean = new CassandraCqlClusterFactoryBean();
+		cassandraCqlClusterFactoryBean.setProtocolVersion(ProtocolVersion.V2);
+		try {
+			cassandraCqlClusterFactoryBean.afterPropertiesSet();
+			Assert.assertEquals(
+				ProtocolVersion.V2,
+				cassandraCqlClusterFactoryBean.getObject().getConfiguration().getProtocolOptions().getProtocolVersionEnum()
+			);
+		} catch (Exception e) {
+			Assert.fail("Unable to create CQL cluster bean" + e.getMessage());
+		}
+	}
+
+	@Test
+	public void testDefaultProtocolVersion(){
+		final CassandraCqlClusterFactoryBean cassandraCqlClusterFactoryBean = new CassandraCqlClusterFactoryBean();
+
+		try {
+			cassandraCqlClusterFactoryBean.afterPropertiesSet();
+			Assert.assertNull(
+				cassandraCqlClusterFactoryBean.getObject().getConfiguration().getProtocolOptions().getProtocolVersionEnum()
+			);
+		} catch (Exception e) {
+			Assert.fail("Unable to create CQL cluster bean" + e.getMessage());
+		}
+	}
+}