code: @Test public void should_fail_if_actual_is_not_a_readable_file(){
    AssertionInfo info=someInfo();
    when(nioFilesWrapper.exists(actual)).thenReturn(true);
    when(nioFilesWrapper.isReadable(actual)).thenReturn(false);
    when(nioFilesWrapper.isReadable(other)).thenReturn(true);
    try {
      paths.assertHasSameContentAs(info,actual,other);
    }
   catch (  AssertionError e) {
      verify(failures).failure(info,shouldBeReadable(actual));
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }
  