Creating test jar in Maven

My project is moduled as common, server, web, dao

For test cases I am using Random beans

Since the model objects are used across all the modules, to have a randomizer setup for each of these module is duplication.

So I am adding this randomizer related classes and configuration only at common module, and referencing at other module for test scope

At common :

<project>

  ...

  <build>

    <plugins>

      ...

      <plugin>

        <groupId>org.apache.maven.plugins</groupId>

        <artifactId>maven-jar-plugin</artifactId>

        <version>3.0.2</version>

        <executions>

          <execution>

            <goals>

              <goal>test-jar</goal>

            </goals>

          </execution>

        </executions>

      </plugin>

      ...

    </plugins>

  </build>

  ...

</project>

At dao :

<project>
  ...
  <dependencies>
    <dependency>
      <groupId>com.foo</groupId>
      <artifactId>common</artifactId>
      <type>test-jar</type>
      <version>version</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  ...
</project>

You can read more about this here

If you are building your project with maven.test.skip=true this test-jar is not generated. To overcome this use profile activation. i.e. at dao, add test-jar dependency only if the maven.test.skip != true

<profiles>

     <profile>

         <activation>

            <property>

               <name>maven.test.skip</name>

               <value>!true</value>

            </property>

         </activation>

         <dependencies>

            <dependency>

             <groupId>com.foo</groupId>

        <artifactId>common</artifactId>
        <type>test-jar</type>
        <version>version</version>
        <scope>test</scope>
        </dependency>

         </dependencies>

      </profile>

    </profiles>

Log mybatis sql query

To log SQL queries from a specific mapper in mybatis, add the mapper namespace to the logger level.

Eg :

If this is the mapper file,

<mapper namespace="customer">

Then to log statements that are defined in this mapper xml,
<logger name="customer">
        <level value="trace"/>
        <appender-ref ref="consoleAppender" />
</logger>

Reference :
http://www.mybatis.org/mybatis-3/logging.html

Use of profiles in Spring

In this blog I would have detailed about creating a transaction proxy. Now lets say you need to hook this proxy only test cases.
i.e. stageUtils has to be stageUtilsProxy wherever it is used only for the test cases.

Here is where profile come into picture. You can read more about it here

Add a overridden-context-for-test-profile.xml with testcase profile

<?xml version="1.0" encoding="UTF-8"?>



<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

         http://www.springframework.org/schema/beans/spring-beans.xsd" profile="testcase">



     <bean id="testStageUtils" scope="prototype" class="com.foo.infra.util.StageUtils" />



    <bean id="stageUtils"

class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">

<property name="transactionManager" ref="transactionManager" />

<property name="target" ref="testStageUtils" />

<property name="transactionAttributes">

<props>

<prop key="*">PROPAGATION_REQUIRES_NEW</prop>

</props>

</property>

</bean>



</beans>

Add this xml to the test-application-context.xml

<?xml version="1.0" encoding="UTF-8"?>



<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns:tx="http://www.springframework.org/schema/tx"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

         http://www.springframework.org/schema/beans/spring-beans.xsd

         http://www.springframework.org/schema/tx

         http://www.springframework.org/schema/tx/spring-tx.xsd">



    <import resource="classpath:application-context.xml"/>

    <import resource="classpath:overridden-context-for-test-profile.xml"/>

</beans>

Annotate your BaseIntegrationTest class with @ActiveProfile annotation

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations = {

        "classpath:test-application-context.xml"

        })

@TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)

@Transactional

@ActiveProfiles(profiles="testcase")

public abstract class BaseIntegrationTest {