@Test
public void multipleFiltersForOneRegionTest() throws IOException {

    final PdfReader pdfReader = TestResourceUtils.getResourceAsPdfReader(this, "test.pdf");
    final Rectangle[] regions = new Rectangle[] {new Rectangle(0, 0, 500, 650),
            new Rectangle(0, 0, 400, 400), new Rectangle(200, 200, 500, 600), new Rectangle(100, 100, 450, 400)};
    final RegionTextRenderFilter[] regionFilters = new RegionTextRenderFilter[regions.length];
    for (int i = 0; i < regions.length; i++)
        regionFilters[i] = new RegionTextRenderFilter(regions[i]);
    MultiFilteredRenderListener listener = new MultiFilteredRenderListener();
    LocationTextExtractionStrategy extractionStrategy = (LocationTextExtractionStrategy)listener.attachRenderListener(new LocationTextExtractionStrategy(), regionFilters);
    new PdfReaderContentParser(pdfReader).processContent(1, listener);
    String actualText = extractionStrategy.getResultantText();
    String expectedText = PdfTextExtractor.getTextFromPage(pdfReader, 1, new FilteredTextRenderListener(new LocationTextExtractionStrategy(), regionFilters));
    Assert.assertEquals(expectedText, actualText);
}