setup tests with maven

pom.xml

@@ -21,6 +21,12 @@
                         <target>11</target>
                     </configuration>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <!-- JUnit 5 requires Surefire version 2.22.0 or higher -->
+                    <version>2.22.0</version>
+                </plugin>
             </plugins>
         </pluginManagement>
     </build>

sdg-core/pom.xml

@@ -17,6 +17,19 @@
         <maven.compiler.target>11</maven.compiler.target>
     </properties>
 
+    <build>
+        <testResources>
+            <testResource>
+                <directory>src/test/res</directory>
+                <includes>
+                    <include>**/*.java</include>
+                    <include>**/*.java.*.criterion</include>
+                    <include>**/*.java.*.sliced</include>
+                </includes>
+            </testResource>
+        </testResources>
+    </build>
+
     <dependencies>
         <dependency>
             <groupId>com.github.javaparser</groupId>

sdg-core/src/test/java/es/upv/mist/slicing/SlicerTest.java

@@ -49,7 +49,9 @@ public class SlicerTest {
     }
 
     public static Arguments[] findAllFiles() throws FileNotFoundException {
-        Collection<Arguments> args = findFiles(new File(TEST_FILES), DOT_JAVA);
+        File testFolder = new File(Thread.currentThread().getContextClassLoader()
+                .getResource("dinsa-tests/").getPath());
+        Collection<Arguments> args = findFiles(testFolder, DOT_JAVA);
         return args.toArray(Arguments[]::new);
     }