@Test
public void testExistAllFileArray()
{

    assertThat( PathUtil.existAll(), equalTo( false ) );
    assertThat( PathUtil.existAll( (File[]) null ), equalTo( false ) );
    assertThat( PathUtil.existAll( f1 ), equalTo( true ) );
    assertThat( PathUtil.existAll( f2 ), equalTo( false ) );
    assertThat( PathUtil.existAll( f1, f3 ), equalTo( true ) );
    assertThat( PathUtil.existAll( f1, f2, f4 ), equalTo( false ) );
}