human
Complete this python program:
def _test_read_factory(source, count):
assistant
#Here is the Python code you requested.

    """Generate a test method for read()ing the given source.
    The generated function reads an example file to produce a phyloXML object,
    then tests for existence of the root node, and counts the number of
    phylogenies under the root.
    """
    fname = os.path.basename(source)
    def test_read(self):
        phx = PhyloXMLIO.read(source)
        self.assertTrue(phx)
        self.assertEqual(len(phx), count[0])
        self.assertEqual(len(phx.other), count[1])
    test_read.__doc__ = ('Read    %s    to    produce    a    phyloXML    object.' % fname)
    return test_read