Use h2 for Unit Test

.gitignore

@@ -0,0 +1,42 @@
+*#
+*.iml
+*.ipr
+*.iws
+*.jar
+*.sw?
+*~
+.#*
+.*.md.html
+.DS_Store
+.attach_pid*
+.classpath
+.factorypath
+.gradle
+.idea
+.metadata
+.project
+.recommenders
+.settings
+.springBeans
+.vscode
+/code
+MANIFEST.MF
+_site/
+activemq-data
+bin
+build
+!/**/src/**/bin
+!/**/src/**/build
+build.log
+dependency-reduced-pom.xml
+dump.rdb
+interpolated*.xml
+lib/
+manifest.yml
+out
+overridedb.*
+target
+.flattened-pom.xml
+secrets.yml
+.gradletasknamecache
+.sts4-cache

pom.xml

@@ -41,15 +41,15 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
-	<properties>
-		<java.version>11</java.version>
-	</properties>
 
 	<build>
-		<plugi<properties>
-		<java.version>11</java.version>
-	</properties>ns>
+		<plugins>
 			<plugin>
 				<groupId>org.springframework.boot</groupId>
 				<artifactId>spring-boot-maven-plugin</artifactId>

src/main/java/com/ninjaarun/my/spring/jpa/tutorial/repository/StudentRepository.java

@@ -13,7 +13,7 @@ public interface StudentRepository extends JpaRepository<Student, Long> {
 
     public List<Student> findByFirstNameContaining(String firstName);
 
-    @Query(value = " select * from schooldb.mycustom_table where student_id= :emailId", nativeQuery = true)
+    @Query(value = " select * from mycustom_table where student_id= :emailId", nativeQuery = true)
     Student findByIdQueryMethod(@Param("emailId") Long i);
 
 

src/main/resources/application.properties

@@ -2,5 +2,6 @@ spring.jpa.hibernate.ddl-auto=update
 spring.datasource.url=jdbc:mysql://localhost:3306/schooldb
 spring.datasource.username=root
 spring.datasource.password=root@123
-spring.datasource.driver-class-name =com.mysql.jdbc.Driver
-spring.jpa.show-sql: true
+spring.datasource.driver-class-name=com.mysql.jdbc.Driver
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect

src/test/java/com/ninjaarun/my/spring/jpa/tutorial/MySpringJpaTutorialApplicationTests.java

@@ -1,13 +1,13 @@
 package com.ninjaarun.my.spring.jpa.tutorial;
 
 import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
 
-@SpringBootTest
 class MySpringJpaTutorialApplicationTests {
 
 	@Test
-	void contextLoads() {
+	public void main() {
+		MySpringJpaTutorialApplication.main(new String[]{});
 	}
 
+
 }

src/test/java/com/ninjaarun/my/spring/jpa/tutorial/repository/CourseMaterialRepositoryTest.java

@@ -3,10 +3,18 @@
 import com.ninjaarun.my.spring.jpa.tutorial.entity.Course;
 import com.ninjaarun.my.spring.jpa.tutorial.entity.CourseMaterial;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
 
-@SpringBootTest
+import static org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase.Replace.NONE;
+
+@ExtendWith(SpringExtension.class)
+@DataJpaTest
+@AutoConfigureTestDatabase(replace = NONE)
 class CourseMaterialRepositoryTest {
 
     @Autowired

src/test/java/com/ninjaarun/my/spring/jpa/tutorial/repository/StudentRepositoryTest.java

@@ -3,12 +3,22 @@
 import com.ninjaarun.my.spring.jpa.tutorial.entity.Guardian;
 import com.ninjaarun.my.spring.jpa.tutorial.entity.Student;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
 
 import java.util.List;
 
-@SpringBootTest
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase.Replace.NONE;
+
+@ExtendWith(SpringExtension.class)
+@DataJpaTest
+@AutoConfigureTestDatabase(replace = NONE)
 class StudentRepositoryTest {
 
     @Autowired
@@ -52,17 +62,21 @@ public void saveStudentWithGuardian()
                 .build();
 
         studentRepository.save(s);
+
+        List<Student> results = studentRepository.findByFirstNameContaining("Neetu");
+        assertFalse(results.isEmpty());
     }
 
     @Test
     public void findByFirstName()
     {
-        System.out.println(studentRepository.findByFirstNameContaining("arun"));
+        assertTrue(studentRepository.findByFirstNameContaining("arun").isEmpty());
     }
 
     @Test
     public void findByIdQueryMethod()
     {
-        System.out.println(studentRepository.findByIdQueryMethod(2L));
+        Student result = studentRepository.findByIdQueryMethod(2L);
+        assertNull(result);
     }
 }

src/test/resources/application.properties

@@ -0,0 +1,7 @@
+spring.h2.console.enabled=true
+
+spring.datasource.platform=h2
+spring.datasource.initialization-mode=embedded
+spring.datasource.url=jdbc:h2:mem:memonly;MODE=PostgreSQL;IGNORECASE=TRUE;DB_CLOSE_ON_EXIT=FALSE;DB_CLOSE_DELAY=-1
+spring.datasource.username=sa
+spring.datasource.password=