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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Module for testing the mpop.channel module.
"""
import unittest
from datetime import datetime
from mpop.satin.viirs_sdr import _get_swathsegment
class TestViirsSDRReader(unittest.TestCase):
"""Class for testing the VIIRS SDR reader class.
"""
def test_get_swath_segment(self):
"""
Test choosing swath segments based on datatime interval
"""
filenames = [
"SVM15_npp_d20130312_t1034305_e1035546_b07108_c20130312110058559507_cspp_dev.h5",
"SVM15_npp_d20130312_t1035559_e1037201_b07108_c20130312110449303310_cspp_dev.h5",
"SVM15_npp_d20130312_t1037213_e1038455_b07108_c20130312110755391459_cspp_dev.h5",
"SVM15_npp_d20130312_t1038467_e1040109_b07108_c20130312111106961103_cspp_dev.h5",
"SVM15_npp_d20130312_t1040121_e1041363_b07108_c20130312111425464510_cspp_dev.h5",
"SVM15_npp_d20130312_t1041375_e1043017_b07108_c20130312111720550253_cspp_dev.h5",
"SVM15_npp_d20130312_t1043029_e1044271_b07108_c20130312112246726129_cspp_dev.h5",
"SVM15_npp_d20130312_t1044283_e1045525_b07108_c20130312113037160389_cspp_dev.h5",
"SVM15_npp_d20130312_t1045537_e1047179_b07108_c20130312114330237590_cspp_dev.h5",
"SVM15_npp_d20130312_t1047191_e1048433_b07108_c20130312120148075096_cspp_dev.h5",
"SVM15_npp_d20130312_t1048445_e1050070_b07108_c20130312120745231147_cspp_dev.h5",
]
#
# Test search for multiple granules
result = [
"SVM15_npp_d20130312_t1038467_e1040109_b07108_c20130312111106961103_cspp_dev.h5",
"SVM15_npp_d20130312_t1040121_e1041363_b07108_c20130312111425464510_cspp_dev.h5",
"SVM15_npp_d20130312_t1041375_e1043017_b07108_c20130312111720550253_cspp_dev.h5",
"SVM15_npp_d20130312_t1043029_e1044271_b07108_c20130312112246726129_cspp_dev.h5",
"SVM15_npp_d20130312_t1044283_e1045525_b07108_c20130312113037160389_cspp_dev.h5",
]
tstart = datetime(2013, 3, 12, 10, 39)
tend = datetime(2013, 3, 12, 10, 45)
sublist = _get_swathsegment(filenames, tstart, tend)
self.assert_(sublist == result)
#
# Test search for single granule
tslot = datetime(2013, 3, 12, 10, 45)
result_file = [
"SVM15_npp_d20130312_t1044283_e1045525_b07108_c20130312113037160389_cspp_dev.h5",
]
single_file = _get_swathsegment(filenames, tslot)
self.assert_(result_file == single_file)
if __name__ == '__main__':
unittest.main()
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