clean up

untitled/src/test/java/DirConverterTest.java

@@ -14,7 +14,6 @@ public class DirConverterTest {
     private FileConverter fileConverter;
 
     DirConverterTest(){
-        //tworzymy atrapę klasy FileConverter poprzez słówko mock
         fileConverter = mock(FileConverter.class);
         dirConverter = new DirConverter(fileConverter);
     }

untitled/src/test/java/FileConverterTest.java

@@ -22,7 +22,7 @@ public class FileConverterTest {
         assertEquals(basic,content);
         return content;
     }
-    private void checkUpperCase (String content) throws IOException {
+    private void checkUpperCase (String content) {
         String basic = "ABCDFG";
         assertEquals(basic,fileConverter.toUpperCase(content));
     }