Fix file size in test

Author: ckittl

src/test/groovy/edu/ie3/util/io/FileIOUtilsTest.groovy

@@ -90,7 +90,7 @@ class FileIOUtilsTest extends Specification {
 		then:
 		noExceptionThrown()
 		Files.exists(archiveFile)
-		Files.size(archiveFile) >= 1511 && Files.size(archiveFile) <= 1605 // Should be around 1558 bytes +/- 3 %
+		Files.size(archiveFile) >= 1317 && Files.size(archiveFile) <= 1399 // Should be around 1385 bytes +/- 3 %
 	}
 
 	def "The fileio utils is able to zip the contents of a directory with nested structure to .tar.gz"() {
@@ -105,7 +105,7 @@ class FileIOUtilsTest extends Specification {
 		then:
 		noExceptionThrown()
 		Files.exists(archiveFile)
-		Files.size(archiveFile) >= 1578 && Files.size(archiveFile) <= 1676 // Should be around 1627 bytes +/- 3 %
+		Files.size(archiveFile) >= 1384 && Files.size(archiveFile) <= 1427 // Should be around 1427 bytes +/- 3 %
 	}
 
 	def "The fileio utils throws an exception, if the input path is null when called to compress a file"() {