Run Integration test and Unit test using Maven in Scala project

Question

In my Scala project I have two packages such as "src/test/scala/integration" and "src/test/scala/unit". All the unit test and integration test are in their respective packages. I want to execute them (either Unit tests or Integration tests) as per my need using commands like "mvn test". How can this be achieved?

Here is my "pom.xml" file -

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.sarfaraz.demo</groupId>
  <artifactId>scala-project</artifactId>
  <version>0.1</version>
  <name>${project.artifactId}</name>
  <description>My wonderfull scala app</description>
  <inceptionYear>2019</inceptionYear>

  <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <encoding>UTF-8</encoding>
    <scala.version>2.12.6</scala.version>
    <scala.compat.version>2.12</scala.compat.version>
    <failsafe.version>2.22.1</failsafe.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.scala-lang</groupId>
      <artifactId>scala-library</artifactId>
      <version>${scala.version}</version>
    </dependency>

    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.48</version>
    </dependency>

    <!-- Test -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>org.scalatest</groupId>
      <artifactId>scalatest_${scala.compat.version}</artifactId>
      <version>3.0.5</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>org.mockito</groupId>
      <artifactId>mockito-core</artifactId>
      <version>2.27.0</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <build>
    <sourceDirectory>src/main/scala</sourceDirectory>
    <testSourceDirectory>src/test/scala/</testSourceDirectory>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.21.0</version>
      </plugin>

      <plugin>
        <groupId>org.scalatest</groupId>
        <artifactId>scalatest-maven-plugin</artifactId>
        <version>2.0.0</version>
        <configuration>
          <reportsDirectory>${project.build.directory}/surefire-reports</reportsDirectory>
          <junitxml>.</junitxml>
          <filereports>TestSuiteReport.txt</filereports>
          <!-- Comma separated list of JUnit test class names to execute -->
          <jUnitClasses>StudentRepositoryTest</jUnitClasses>
        </configuration>
        <executions>
          <execution>
            <id>test</id>
            <goals>
              <goal>test</goal>
            </goals>
          </execution>
        </executions>
      </plugin>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-failsafe-plugin</artifactId>
        <version>${failsafe.version}</version>
        <configuration>
          <includes>
            <include>**/*IT.scala</include>
          </includes>
        </configuration>
        <executions>
          <execution>
            <id>integration-tests</id>
            <phase>integration-test</phase>
            <goals>
              <goal>integration-test</goal>
            </goals>
          </execution>
        </executions>
      </plugin>

    </plugins>
  </build>
</project>

I my case, while using "mvn test", I am able to run the Unit tests.

Here is the link to the GitHub repo: https://github.com/Sarfaraz214/ScalaDemo

Any help will be much appreciated. Thanks. :)

Answer 1

There are 2 issues here:

First, given your integration and unit tests have separate source and resource directories. you need to add extra source and resource directories by using the Build Helper Maven Plugin.

Second: Although you intended to separate your integration test using the configuration in fail-safe (**/*IT.scala) this would not work as intended in Scala as your tests are being run by your

<plugin>
<groupId>org.scalatest</groupId>
<artifactId>scalatest-maven-plugin</artifactId>
</plugin>

I would answer how to resolve the first issue here and you could post another question on how to separate your integration tests and unit tests in Scala. (comment with a link to next question)

Resolution to first (This will allow you to run both unit and Integration test)

You need to add this to your pom file and replace the directory tags with the appropriate paths to your resource and source folder

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>build-helper-maven-plugin</artifactId>
    <version>3.0.0</version>
    <executions>

      <execution>
        <id>add-integration-test-sources</id>
        <phase>generate-test-sources</phase>
        <goals>
          <goal>add-test-source</goal>
        </goals>
        <configuration>
          <sources>
            <source>src/test/scala/integration</source>
          </sources>
        </configuration>
      </execution>

      <execution>
        <id>add-integration-test-resources</id>
        <phase>generate-test-resources</phase>
        <goals>
          <goal>add-test-resource</goal>
        </goals>
        <configuration>
          <resources>
            <resource>
              <directory>src/integration-test/resources</directory>
            </resource>
          </resources>
        </configuration>
      </execution>

    </executions>
  </plugin>