spring boot test application.properties file not found - spring

Question

I have a maven module with one test class DbTest. When running the test, the property file application.properties is not picked up. The line
System.out.println in DvsTestDbConfig displays {database.test} instead of qqqqqqqqq (dummy value for the moment). Any idea why spring doesn't find the property file ?
DbTest
package ch.admin.estv.dvs.test.database;
import ch.admin.estv.dvs.test.database.config.DvsTestDbConfig;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.context.annotation.Import;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
#RunWith(SpringJUnit4ClassRunner.class)
#Import(DvsTestDbConfig.class)
public class DbTest {
#Test
public void givenPartnerToDelete_whenPartnerDelete_thenNoEntryExist() {
System.out.println("test started");
}
}
DvsTestDbConfig
package ch.admin.estv.dvs.test.database.config;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import java.util.Properties;
#Configuration
#ComponentScan(basePackages = {"ch.admin.estv.dvs.test.database"})
#EnableTransactionManagement
public class DvsTestDbConfig {
#Value("${database.test}")
String databaseTest;
#Autowired
private Environment environment;
#Value("${database.driverClassName}")
String driverClassName;
#Value("${database.url}")
String databaseUrl;
#Value("${database.username}")
String databaseUsername;
#Value("${database.password}")
String databasePassword;
#Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan(new String[]{"ch.admin.estv.dvs.test.database"});
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
em.setJpaProperties(additionalProperties());
return em;
}
#Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
System.out.println("************** db property databaseTest : " + databaseTest);
dataSource.setUrl(databaseUrl);
dataSource.setUsername(databaseUsername);
dataSource.setPassword(databasePassword);
dataSource.setDriverClassName("oracle.jdbc.OracleDriver");
return dataSource;
}
#Bean
public PlatformTransactionManager transactionManager(EntityManagerFactory emf) {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(emf);
return transactionManager;
}
#Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
Properties additionalProperties() {
Properties properties = new Properties();
//properties.setProperty("hibernate.hbm2ddl.auto", "validate");
properties.setProperty("hibernate.dialect", "org.hibernate.dialect.Oracle10gDialect");
properties.setProperty("hibernate.temp.use_jdbc_metadata_defaults", "false");
properties.setProperty("hibernate.jdbc.lob.non_contextual_creation", "true");
properties.setProperty("show_sql", "true");
return properties;
}
}
application.properties
database.test=qqqqqqqqq
database.url=xxxxxxxxxxxxxxxxx
database.username=xxxxxxxxxx
database.password=xxxxxxxxxxx
database.driverClassName=oracle.jdbc.OracleDriver
pom.xml
<parent>
<artifactId>dvs-test</artifactId>
<groupId>ch.admin.estv.dvs</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>dvs-test-database</artifactId>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>javax.transaction-api</artifactId>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>${ojdbc6.version}</version>
</dependency>
</dependencies>

Answer 1

Add
#PropertySource(value = "classpath:application.properties")
annotation on your DvsTestDbConfig class
Properties resolved through the Environment reside in one or more
"property source" objects, and #Configuration classes may contribute
property sources to the Environment object using the #PropertySource
annotation:
https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/annotation/Configuration.html

Answer 2

Annotate your test class with #SpringBootTest . More details and alternatives: Populating Spring #Value during Unit Test