#963 - NullPointerException on no version provided (when setVersion(null) is used)

src/test/java/io/ebeaninternal/server/deploy/generatedproperty/GeneratedCounterLongTest.java

@@ -0,0 +1,35 @@
+package io.ebeaninternal.server.deploy.generatedproperty;
+
+import io.ebean.BaseTestCase;
+import io.ebean.bean.EntityBean;
+import io.ebeaninternal.server.deploy.BeanProperty;
+import org.junit.Test;
+import org.tests.model.basic.Customer;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+
+public class GeneratedCounterLongTest extends BaseTestCase {
+
+  private GeneratedCounterLong counter = new GeneratedCounterLong();
+
+  private BeanProperty version = getBeanDescriptor(Customer.class).getBeanProperty("version");
+
+  @Test(expected = IllegalStateException.class)
+  public void when_null_expect_IllegalStateException() throws Exception {
+
+    Customer customer = new Customer();
+    counter.getUpdateValue(version, (EntityBean)customer, System.currentTimeMillis());
+  }
+
+  @Test
+  public void when_set_expect_incremented() throws Exception {
+
+    Customer customer = new Customer();
+    customer.setVersion(7L);
+    Object value = counter.getUpdateValue(version, (EntityBean) customer, System.currentTimeMillis());
+
+    assertThat(value).isEqualTo(8L);
+  }
+
+}