source: class ValidationTest {
  
      private Validation cut;
  
      @Test
      public void isValidUsbDeviceCandidate_not_existent() {
  
target:         final File mockFile = Mockito.mock(File.class);
          Mockito.when(mockFile.exists()).thenReturn(false);
  
          assertFalse(cut.isValidUsbDeviceCandidate(mockFile));
      }
  
  }