updated unit test cases so that build doesn't generate un-committed files

libraries-data-2/src/test/java/com/baeldung/univocity/ParsingServiceUnitTest.java

@@ -2,15 +2,26 @@ package com.baeldung.univocity;
 
 import static org.junit.Assert.assertEquals;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.junit.After;
 import org.junit.Test;
 
 import com.baeldung.univocity.model.Product;
 
 public class ParsingServiceUnitTest {
 
+    @After
+    public void cleanup() {
+        File csvFile = new File("src/test/resources/outputProductList.csv");
+        csvFile.deleteOnExit();
+        
+        File textFile = new File("src/test/resources/outputProductList.txt");
+        textFile.deleteOnExit();
+    }
+    
     @Test
     public void givenCsvFile_thenParsedResultsShouldBeReturned() {
         ParsingService parsingService = new ParsingService();