Maven unable to resolve org.junit.test - maven

Question

I am trying to compile and run unit tests in Groovy from the command line. The package structure in the project is not following naming convention - this is something I can`t change at this point. The classes are organized as:
src/abc/def/SomeClass.groovy
src/abc/tests/def/TestSomeClass.groovy
When I run mvn test, the message is:
unable to resolve class org.junit.Test
and
unable to resovle class org.junit.Assert
in the class src/abc/tests/def/TestSomeClass.groovy.
My POM is:
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.codehaus.mojo</groupId>
<artifactId>my-project</artifactId>
<version>1.0</version>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.gmavenplus</groupId>
<artifactId>gmavenplus-plugin</artifactId>
<version>1.5</version>
<configuration>
<sources>
<source>
<directory>src</directory>
<includes>
<include>**/*.groovy</include>
</includes>
</source>
</sources>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>addSources</goal>
<goal>addTestSources</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.18.1</version>
<configuration>
<includes>
<include>**/Test*.groovy</include>
</includes>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>2.4.7</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>

Answer 1

The standard Maven directory layout is this:
For production:
<project>/src/main/groovy/abc/def
For tests:
<project>/src/test/groovy/abc/def
If you arrange your sources according to this scheme, you shouldn't have problems.
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