@Test
  public void testColumnRangeFilter() throws IOException {
    String filterString = "ColumnRangeFilter('abc', true, 'xyz', false)";
    ColumnRangeFilter columnRangeFilter = doTestFilter(filterString, ColumnRangeFilter.class);
    assertEquals("abc", new String(columnRangeFilter.getMinColumn(), StandardCharsets.UTF_8));
    assertEquals("xyz", new String(columnRangeFilter.getMaxColumn(), StandardCharsets.UTF_8));
    assertTrue(columnRangeFilter.isMinColumnInclusive());
    assertFalse(columnRangeFilter.isMaxColumnInclusive());
  }
This class tests ParseFilter.java It tests the entire work flow from when a string is given by
the user and how it is parsed to construct the corresponding Filter object
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestParseFilter.java