Imports
    >>> from owslib.csw import CatalogueServiceWeb as cs
    >>> from xml.dom import minidom as md
    >>> from owslib import fes, csw
    >>> from tests.utils import compare_xml
    
Initialize CSW client

    # connect to CSW, explore it's properties
    #endpoint = 'http://data.nodc.noaa.gov/geoportal/csw'  # NODC Geoportal: collection level
    #endpoint = 'http://geodiscover.cgdi.ca/wes/serviceManagerCSW/csw'  # NRCAN 
    #endpoint = 'http://geoport.whoi.edu/gi-cat/services/cswiso' # USGS Woods Hole GI_CAT
    #endpoint = 'http://cida.usgs.gov/gdp/geonetwork/srv/en/csw' # USGS CIDA Geonetwork
    #endpoint = 'http://www.nodc.noaa.gov/geoportal/csw'   # NODC Geoportal: granule level
    #endpoint = 'http://cmgds.marine.usgs.gov/geonetwork/srv/en/csw'  # USGS Coastal & Marine Program Geonetwork
    >>> endpoint = 'http://www.ngdc.noaa.gov/geoportal/csw' # NGDC Geoportal
    >>> c = cs(endpoint, timeout=30)

    # define some var
    >>> AOOS = '1706F520-2647-4A33-B7BF-592FAFDE4B45'
    >>> bbox = [-141,42,-52,84]
    
    # Test new function getrecords2()
    >>> uuid = fes.PropertyIsEqualTo(propertyname='sys.siteuuid', literal='{%s}' % AOOS)
    >>> timeRange = fes.PropertyIsBetween(propertyname='apiso:modified', lower='2009-02-01', upper='2015-02-01')
    >>> word = fes.PropertyIsLike(propertyname='csw:AnyText', literal='*salinity*', escapeChar='\\', singleChar='?', wildCard='*')
    >>> box = fes.BBox(bbox)

    ##########################################################
    # Test 1
    # Passing a list of list [[a,c,d],[b,c,d]]
    # Translates to (a && c && d) || (b && c && d)
    ##########################################################
    >>> filter_list = [[uuid, word, timeRange], [bbox, word, timeRange]]
    >>> c.getrecords2(filter_list)
    >>> c.results == {'matches': 75, 'nextrecord': 11, 'returned': 10}
    True

    ##########################################################
    # Test 2
    # Passing a list of list [a, b]
    # it means a || b
    ##########################################################
    # The response of this query is chaning to often to be a reliable test.
    # >>> filter_list = [uuid, box]
    # >>> c.getrecords2(filter_list)
    # >>> c.results
    # {'matches': 4895, 'nextrecord': 11, 'returned': 10}

    ##########################################################
    # Test 3
    # Passing a list of list [[a,b]]
    # it means a && b
    ##########################################################
    >>> filter_list = [[uuid, box]]
    >>> c.getrecords2(filter_list)
    >>> c.results['matches'] > 0
    True
    >>> c.results['returned'] < 11
    True

    ##########################################################
    # Test 4
    # Null Check: sys.siteuuid is null
    # Passing a list [c]
    ##########################################################
    >>> filter = fes.PropertyIsNull(propertyname='sys.siteuuid')
    >>> c.getrecords2([filter])
    >>> c.results['matches'] < 1
    True
    >>> c.results['nextrecord'] == 0
    True


    ##########################################################
    # Test 5
    # construct a request by send the xml string
    ##########################################################
    >>> sos_search=b'''<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
    ... <csw:GetRecords xmlns:xs2="http://www.w3.org/XML/Schema" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:gml="http://www.opengis.net/gml" xmlns:dif="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:rim="urn:oasis:names:tc:ebxml-regrep:xsd:rim:3.0" xmlns:ows="http://www.opengis.net/ows" xmlns:fgdc="http://www.opengis.net/cat/csw/csdgm" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dct="http://purl.org/dc/terms/" xmlns:ogc="http://www.opengis.net/ogc" outputSchema="http://www.opengis.net/cat/csw/2.0.2" outputFormat="application/xml" version="2.0.2" resultType="results" service="CSW" maxRecords="10" xsi:schemaLocation="http://www.opengis.net/cat/csw/2.0.2 http://schemas.opengis.net/csw/2.0.2/CSW-discovery.xsd">
    ... <csw:Query typeNames="csw:Record">
    ... <csw:ElementSetName>full</csw:ElementSetName>
    ... <csw:Constraint version="1.1.0">
    ...   <ogc:Filter>
    ...     <ogc:And>
    ...        <ogc:PropertyIsLike wildCard="*" escape="\" singleChar="?"> 
    ...          <ogc:PropertyName>apiso:ServiceType</ogc:PropertyName>
    ...          <ogc:Literal>*opendap*</ogc:Literal>
    ...        </ogc:PropertyIsLike>
    ...     </ogc:And> 
    ...    </ogc:Filter>
    ... </csw:Constraint>
    ...  </csw:Query>
    ... </csw:GetRecords>
    ... '''
    >>> c.getrecords2(xml=sos_search)   # in about XML it has constraint: maxrecords=10
    >>> c.results['matches'] > 0
    True
    >>> c.results['returned'] < 11
    True
    >>> c.results['nextrecord'] == 11
    True
    
    ##########################################################
    # Test 6
    # construct a request by setting SAME constraint with Test 1
    # Passing a list of list [[a,b]]
    # it means a && b
    ##########################################################
    >>> dap_filter = fes.PropertyIsLike(propertyname='apiso:ServiceType', literal='*opendap*', escapeChar='\\', singleChar='?', wildCard='*')
    >>> filter_list = [[uuid,dap_filter]]
    >>> c.getrecords2(filter_list)
    >>> c.results['matches'] > 0
    True
    >>> c.results['returned'] < 11
    True
    >>> c.results['nextrecord'] == 11
    True
    
