String fileNameNoMatch1 = "20060101_test_test.csv";
String fileNameNoMatch2 = "20060101_TEST.csv";
assertNotNull(filter.getPattern());
assertTrue(filter.accept(fileNameMatch));
assertFalse(filter.accept(fileNameNoMatch1));
assertFalse(filter.accept(fileNameNoMatch2));
filter.setCaseSensitive(false);
assertTrue(filter.accept(fileNameMatch));
assertFalse(filter.accept(fileNameNoMatch1));