@Test
public void testCollectFiles() throws IOException, URISyntaxException {

    List<String> ncFiles = new ArrayList<>();
    final File[] slstrFiles = TestUtils.getSlstrFiles();
    for (File slstrFile : slstrFiles) {
        SlstrPduStitcher.collectFiles(ncFiles, createXmlDocument(new FileInputStream(slstrFile)));
    }
    assertEquals(3, ncFiles.size());
    assertEquals("met_tx.nc", ncFiles.get(0));
    assertEquals("viscal.nc", ncFiles.get(1));
    assertEquals("F1_BT_io.nc", ncFiles.get(2));
}