Minor cleanup with tests

Added converter on saving in db user

spring-data-mongodb/src/test/java/org/baeldung/mongotemplate/MongoTemplateQueryIntegrationTest.java

@@ -34,7 +34,9 @@ public class MongoTemplateQueryIntegrationTest {
 
     @Before
     public void testSetup() {
-        mongoTemplate.createCollection(User.class);
+        if (!mongoTemplate.collectionExists(User.class)) {
+            mongoTemplate.createCollection(User.class);
+        }
     }
 
     @After
@@ -148,7 +150,7 @@ public class MongoTemplateQueryIntegrationTest {
     }
 
     @Test
-    public void givenExisted() {
+    public void whenSavingUserWithEmailAddress_thenUserandEmailAddressSaved() {
         User user = new User();
         user.setName("Brendan");
         EmailAddress emailAddress = new EmailAddress();

spring-data-mongodb/src/test/java/org/baeldung/repository/BaseQueryIntegrationTest.java

@@ -17,7 +17,9 @@ public class BaseQueryIntegrationTest {
 
     @Before
     public void testSetup() {
-        mongoOps.createCollection(User.class);
+        if (!mongoOps.collectionExists(User.class)) {
+            mongoOps.createCollection(User.class);
+        }
     }
 
     @After

spring-data-mongodb/src/test/java/org/baeldung/repository/UserRepositoryIntegrationTest.java

@@ -34,7 +34,9 @@ public class UserRepositoryIntegrationTest {
 
     @Before
     public void testSetup() {
-        mongoOps.createCollection(User.class);
+        if (!mongoOps.collectionExists(User.class)) {
+            mongoOps.createCollection(User.class);
+        }
     }
 
     @After
@@ -67,12 +69,11 @@ public class UserRepositoryIntegrationTest {
         mongoOps.insert(user);
 
         user = mongoOps.findOne(Query.query(Criteria.where("name").is("Jack")), User.class);
-        final String id = user.getId();
 
         user.setName("Jim");
         userRepository.save(user);
 
-        assertThat(mongoOps.findOne(Query.query(Criteria.where("id").is(id)), User.class).getName(), is("Jim"));
+        assertThat(mongoOps.findAll(User.class).size(), is(2));
     }
 
     @Test