persistence work

spring-hibernate4/src/main/java/org/baeldung/spring/persistence/model/Foo.java

@@ -5,6 +5,7 @@ import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
+import javax.validation.constraints.NotNull;
 
 @Entity
 public class Foo {
@@ -14,6 +15,7 @@ public class Foo {
     private long id;
 
     @Column(nullable = false)
+    @NotNull
     private String name;
 
     public Foo() {

spring-hibernate4/src/test/java/org/baeldung/spring/persistence/service/FooServicePersistenceIntegrationTest.java

@@ -7,6 +7,8 @@ import org.baeldung.spring.persistence.model.Foo;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.dao.InvalidDataAccessApiUsageException;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.support.AnnotationConfigContextLoader;
@@ -30,10 +32,26 @@ public class FooServicePersistenceIntegrationTest {
         service.create(new Foo(randomAlphabetic(6)));
     }
 
-    // @Test(expected = DataIntegrityViolationException.class)
-    @Test
+    @Test(expected = DataIntegrityViolationException.class)
     public final void whenInvalidEntityIsCreated_thenDataException() {
         service.create(new Foo());
     }
 
+    @Test(expected = DataIntegrityViolationException.class)
+    public final void whenEntityWithLongNameIsCreated_thenDataException() {
+        service.create(new Foo(randomAlphabetic(2048)));
+    }
+
+    @Test(expected = InvalidDataAccessApiUsageException.class)
+    public final void whenSameEntityIsCreatedTwice_thenDataException() {
+        final Foo entity = new Foo(randomAlphabetic(8));
+        service.create(entity);
+        service.create(entity);
+    }
+
+    @Test
+    public final void temp_whenInvalidEntityIsCreated_thenDataException() {
+        service.create(new Foo(randomAlphabetic(2048)));
+    }
+
 }