lazy_load_no_trans init commit (#8736)

* lazy_load_no_trans init commit

* refactoring

* methods naming

* Update persistence-modules/spring-boot-persistence-h2/src/test/java/com/baeldung/lazy_load_no_trans/LazyLoadNoTransPropertyOnIntegrationTest.java

Co-Authored-By: KevinGilmore <kpg102@gmail.com>

* Update persistence-modules/spring-boot-persistence-h2/src/test/java/com/baeldung/lazy_load_no_trans/LazyLoadNoTransPropertyOnIntegrationTest.java

Co-Authored-By: KevinGilmore <kpg102@gmail.com>

* Update persistence-modules/spring-boot-persistence-h2/src/test/java/com/baeldung/lazy_load_no_trans/LazyLoadNoTransPropertyOffIntegrationTest.java

Co-Authored-By: KevinGilmore <kpg102@gmail.com>

* naming

* code readability

Co-authored-by: admin <git-commit-id-plugin>
Co-authored-by: KevinGilmore <kpg102@gmail.com>

persistence-modules/spring-boot-persistence-h2/src/test/java/com/baeldung/lazy_load_no_trans/LazyLoadNoTransPropertyOffIntegrationTest.java

@@ -0,0 +1,41 @@
+package com.baeldung.lazy_load_no_trans;
+
+import com.baeldung.h2db.lazy_load_no_trans.LazyLoadNoTransSpringBootApplication;
+import com.baeldung.h2db.lazy_load_no_trans.service.ServiceLayer;
+import com.vladmihalcea.sql.SQLStatementCountValidator;
+import org.hibernate.LazyInitializationException;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.assertEquals;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = LazyLoadNoTransSpringBootApplication.class)
+@ActiveProfiles("lazy-load-no-trans-off")
+public class LazyLoadNoTransPropertyOffIntegrationTest {
+
+    @Autowired
+    private ServiceLayer serviceLayer;
+
+    private static final long EXPECTED_DOCS_COLLECTION_SIZE = 6;
+
+    @Test(expected = LazyInitializationException.class)
+    public void whenCallNonTransactionalMethodWithPropertyOff_thenThrowException() {
+        serviceLayer.countAllDocsNonTransactional();
+    }
+
+    @Test
+    public void whenCallTransactionalMethodWithPropertyOff_thenTestPass() {
+        SQLStatementCountValidator.reset();
+
+        long docsCount = serviceLayer.countAllDocsTransactional();
+
+        assertEquals(EXPECTED_DOCS_COLLECTION_SIZE, docsCount);
+
+        SQLStatementCountValidator.assertSelectCount(2);
+    }
+}

persistence-modules/spring-boot-persistence-h2/src/test/java/com/baeldung/lazy_load_no_trans/LazyLoadNoTransPropertyOnIntegrationTest.java

@@ -0,0 +1,47 @@
+package com.baeldung.lazy_load_no_trans;
+
+import com.baeldung.h2db.lazy_load_no_trans.LazyLoadNoTransSpringBootApplication;
+import com.baeldung.h2db.lazy_load_no_trans.service.ServiceLayer;
+import com.vladmihalcea.sql.SQLStatementCountValidator;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.assertEquals;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = LazyLoadNoTransSpringBootApplication.class)
+@ActiveProfiles("lazy-load-no-trans-on")
+public class LazyLoadNoTransPropertyOnIntegrationTest {
+
+    @Autowired
+    private ServiceLayer serviceLayer;
+
+    private static final long EXPECTED_DOCS_COLLECTION_SIZE = 6;
+    private static final long EXPECTED_USERS_COUNT = 5;
+
+    @Test
+    public void whenCallNonTransactionalMethodWithPropertyOn_thenGetNplusOne() {
+        SQLStatementCountValidator.reset();
+
+        long docsCount = serviceLayer.countAllDocsNonTransactional();
+
+        assertEquals(EXPECTED_DOCS_COLLECTION_SIZE, docsCount);
+
+        SQLStatementCountValidator.assertSelectCount(EXPECTED_USERS_COUNT + 1);
+    }
+
+    @Test
+    public void whenCallTransactionalMethodWithPropertyOn_thenTestPass() {
+        SQLStatementCountValidator.reset();
+
+        long docsCount = serviceLayer.countAllDocsTransactional();
+
+        assertEquals(EXPECTED_DOCS_COLLECTION_SIZE, docsCount);
+
+        SQLStatementCountValidator.assertSelectCount(2);
+    }
+}