minor fix

core-java/src/test/java/com/baeldung/java8/JavaFolderSizeUnitTest.java

@@ -19,13 +19,13 @@ import org.junit.Before;
 import org.junit.Test;
 
 public class JavaFolderSizeUnitTest {
-    private final long EXPECTED_SIZE = 381;
+    private final long EXPECTED_SIZE = 24;
     private String path;
 
     @Before
     public void init() {
         final String separator = File.separator;
-        path = String.format("src%stest%sresources", separator, separator);
+        path = String.format("src%stest%sresources%stestFolder", separator, separator, separator);
     }
 
     @Test

core-java/src/test/java/org/baeldung/java/io/JavaFileUnitTest.java

@@ -76,6 +76,7 @@ public class JavaFileUnitTest {
 
     @Test
     public final void givenUsingApache_whenMovingFile_thenCorrect() throws IOException {
+        FileUtils.touch(new File("src/test/resources/fileToMove_apache.txt"));
         FileUtils.moveFile(FileUtils.getFile("src/test/resources/fileToMove_apache.txt"), FileUtils.getFile("src/test/resources/fileMoved_apache2.txt"));
     }
 

core-java/src/test/resources/testFolder/sample_file_1.in

@@ -0,0 +1 @@
+Hello world

core-java/src/test/resources/testFolder/sample_file_2.in

@@ -0,0 +1 @@
+Hello world !