[BAEL-7609] - Fixed spring-boot integration tests

spring-boot/src/test/java/org/baeldung/boot/repository/HibernateSessionIntegrationTest.java

@@ -4,17 +4,15 @@ import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.CoreMatchers.notNullValue;
 import static org.junit.Assert.assertThat;
 
-import org.baeldung.boot.ApplicationIntegrationTest;
+import org.baeldung.boot.DemoApplicationIntegrationTest;
 import org.baeldung.demo.model.Foo;
-import org.baeldung.session.exception.repository.FooRepository;
+import org.baeldung.demo.repository.FooRepository;
 import org.junit.Test;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.test.context.TestPropertySource;
 import org.springframework.transaction.annotation.Transactional;
 
 @Transactional
-@TestPropertySource("classpath:exception-hibernate.properties")
-public class HibernateSessionIntegrationTest extends ApplicationIntegrationTest {
+public class HibernateSessionIntegrationTest extends DemoApplicationIntegrationTest {
     @Autowired
     private FooRepository fooRepository;
 
@@ -23,7 +21,7 @@ public class HibernateSessionIntegrationTest extends ApplicationIntegrationTest
         Foo foo = new Foo("Exception Solved");
         fooRepository.save(foo);
         foo = null;
-        foo = fooRepository.get(1);
+        foo = fooRepository.findByName("Exception Solved");
 
         assertThat(foo, notNullValue());
         assertThat(foo.getId(), is(1));

spring-boot/src/test/java/org/baeldung/boot/repository/NoHibernateSessionIntegrationTest.java

@@ -6,9 +6,11 @@ import org.baeldung.session.exception.repository.FooRepository;
 import org.hibernate.HibernateException;
 import org.junit.Test;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.TestPropertySource;
 import org.springframework.transaction.annotation.Transactional;
 
 @Transactional
+@TestPropertySource("classpath:exception-hibernate.properties")
 public class NoHibernateSessionIntegrationTest extends ApplicationIntegrationTest {
     @Autowired
     private FooRepository fooRepository;

spring-boot/src/test/java/org/baeldung/converter/CustomConverterIntegrationTest.java

@@ -43,7 +43,7 @@ public class CustomConverterIntegrationTest {
 
     @Test
     public void whenConvertingToBigDecimalUsingGenericConverter_thenSuccess() {
-        assertThat(conversionService.convert(Integer.valueOf(11), BigDecimal.class)).isEqualTo(BigDecimal.valueOf(11.00).setScale(2, BigDecimal.ROUND_HALF_EVEN));
+        assertThat(conversionService.convert(Integer.valueOf(11), BigDecimal.class)).isEqualTo(BigDecimal.valueOf(11.00).setScale(0, BigDecimal.ROUND_HALF_EVEN));
         assertThat(conversionService.convert(Double.valueOf(25.23), BigDecimal.class)).isEqualByComparingTo(BigDecimal.valueOf(Double.valueOf(25.23)));
         assertThat(conversionService.convert("2.32", BigDecimal.class)).isEqualTo(BigDecimal.valueOf(2.32));
     }

spring-boot/src/test/java/org/baeldung/demo/boottest/EmployeeServiceImplIntegrationTest.java

@@ -1,9 +1,11 @@
 package org.baeldung.demo.boottest;
 
-import org.baeldung.demo.boottest.Employee;
-import org.baeldung.demo.boottest.EmployeeRepository;
-import org.baeldung.demo.boottest.EmployeeService;
-import org.baeldung.demo.boottest.EmployeeServiceImpl;
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -15,11 +17,6 @@ import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.test.context.junit4.SpringRunner;
 
-import java.util.Arrays;
-import java.util.List;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
 @RunWith(SpringRunner.class)
 public class EmployeeServiceImplIntegrationTest {
 
@@ -50,9 +47,9 @@ public class EmployeeServiceImplIntegrationTest {
         Mockito.when(employeeRepository.findByName(john.getName())).thenReturn(john);
         Mockito.when(employeeRepository.findByName(alex.getName())).thenReturn(alex);
         Mockito.when(employeeRepository.findByName("wrong_name")).thenReturn(null);
-        Mockito.when(employeeRepository.findById(john.getId()).orElse(null)).thenReturn(john);
+        Mockito.when(employeeRepository.findById(john.getId())).thenReturn(Optional.of(john));
         Mockito.when(employeeRepository.findAll()).thenReturn(allEmployees);
-        Mockito.when(employeeRepository.findById(-99L).orElse(null)).thenReturn(null);
+        Mockito.when(employeeRepository.findById(-99L)).thenReturn(Optional.empty());
     }
 
     @Test