import cf
import datetime
import numpy
import os
import time 
import unittest

class CoordinateTest(unittest.TestCase):
    filename = os.path.join(os.path.dirname(os.path.abspath(__file__)),
                            'test_file.nc')
    chunk_sizes = (17, 34, 300, 100000)[::-1]

    def test_convert_reference_time(self):
        c = cf.DimensionCoordinate(data=cf.Data([1, 3], 'months since 2000-1-1'),
                                   bounds=cf.Data([[0, 2], [2, 4]]))
        self.assertTrue((c.dtarray == numpy.array([datetime.datetime(2000, 1, 31, 10, 29, 3, 831197),
                                                   datetime.datetime(2000, 4, 1, 7, 27, 11, 493645)])).all())
        c.convert_reference_time(calendar_months=True, i=True)
        self.assertTrue((c.dtarray == numpy.array([datetime.datetime(2000, 2, 1, 0, 0),
                                                   datetime.datetime(2000, 4, 1, 0, 0)])).all())
        self.assertTrue((c.bounds.dtarray == numpy.array([[datetime.datetime(2000, 1, 1, 0, 0),
                                                           datetime.datetime(2000, 3, 1, 0, 0)],
                                                          [datetime.datetime(2000, 3, 1, 0, 0),
                                                           datetime.datetime(2000, 5, 1, 0, 0)]])).all())
    #--- End: def

#--- End: class

if __name__ == "__main__":
    print cf.ENVIRONMENT()
    print ''
    unittest.main(verbosity=2)