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unittests_temporal_algebra_grs.py
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unittests_temporal_algebra_grs.py
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"""
(C) 2013 by the GRASS Development Team
This program is free software under the GNU General Public
License (>=v2). Read the file COPYING that comes with GRASS
for details.
:authors: Soeren Gebbert and Thomas Leppelt
"""
import grass.script
import grass.temporal as tgis
import grass.gunittest
import datetime
import os
class TestTemporalAlgebraGranularity(grass.gunittest.TestCase):
@classmethod
def setUpClass(cls):
"""Initiate the temporal GIS and set the region
"""
tgis.init(True) # Raise on error instead of exit(1)
cls.use_temp_region()
cls.runModule("g.region", n=80.0, s=0.0, e=120.0,
w=0.0, t=1.0, b=0.0, res=10.0)
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="a1 = 1")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="a2 = 2")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="a3 = 3")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="a4 = 4")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="a5 = 5")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="a6 = 6")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="b1 = 7")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="b2 = 8")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="c1 = 9")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="d1 = 10")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="d2 = 11")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="d3 = 12")
cls.runModule("r.mapcalc", overwrite=True, quiet=True, expression="singletmap = 99")
tgis.open_new_stds(name="A", type="strds", temporaltype="absolute",
title="A", descr="A", semantic="field", overwrite=True)
tgis.open_new_stds(name="B", type="strds", temporaltype="absolute",
title="B", descr="B", semantic="field", overwrite=True)
tgis.open_new_stds(name="C", type="strds", temporaltype="absolute",
title="C", descr="C", semantic="field", overwrite=True)
tgis.open_new_stds(name="D", type="strds", temporaltype="absolute",
title="D", descr="D", semantic="field", overwrite=True)
tgis.register_maps_in_space_time_dataset(type="raster", name="A", maps="a1,a2,a3,a4,a5,a6",
start="2001-01-01", increment="1 month", interval=True)
tgis.register_maps_in_space_time_dataset(type="raster", name="B", maps="b1,b2",
start="2001-01-01", increment="3 months", interval=True)
tgis.register_maps_in_space_time_dataset(type="raster", name="C", maps="c1",
start="2001-01-01", increment="1 year", interval=True)
tgis.register_maps_in_space_time_dataset(type="raster", name="D", maps="d1",
start="2001-01-01", increment="31 days", interval=True)
tgis.register_maps_in_space_time_dataset(type="raster", name="D", maps="d2",
start="2001-03-01", increment="31 days", interval=True)
tgis.register_maps_in_space_time_dataset(type="raster", name="D", maps="d3",
start="2001-05-01", increment="31 days", interval=True)
tgis.register_maps_in_space_time_dataset(type="raster", name=None, maps="singletmap",
start="2001-01-03", end="2001-01-04", interval=True)
def tearDown(self):
pass
#self.runModule("t.remove", inputs="R", quiet=True)
@classmethod
def tearDownClass(cls):
"""Remove the temporary region
"""
#cls.runModule("t.remove", flags="rf", inputs="A,B,C,D", quiet=True)
cls.del_temp_region()
def test_common_granularity_1(self):
"""Testing the common granularity function. """
ta = tgis.TemporalAlgebraParser(run = True, debug = True)
expr = 'R = A : B'
ret = ta.setup_common_granularity(expression=expr)
self.assertEqual(ret, True)
self.assertEqual(ta.granularity, "1 months")
ta.count = 0
ta.stdstype = "strds"
ta.maptype = "raster"
ta.mapclass = tgis.RasterDataset
maplist = ta.check_stds("A")
self.assertEqual(len(maplist), 6)
maplist = ta.check_stds("B")
self.assertEqual(len(maplist), 6)
ta.parse(expression=expr, basename="r", overwrite=True)
D = tgis.open_old_stds("R", type="strds")
self.assertEqual(D.metadata.get_number_of_maps(), 6)
self.assertEqual(D.metadata.get_min_min(), 1)
self.assertEqual(D.metadata.get_max_max(), 6)
start, end = D.get_absolute_time()
self.assertEqual(start, datetime.datetime(2001, 1, 1))
self.assertEqual(end, datetime.datetime(2001, 7, 1))
self.assertEqual( D.check_temporal_topology(), True)
self.assertEqual(D.get_granularity(), u'1 month')
def test_common_granularity_2(self):
"""Testing the common granularity function year to month samping. """
ta = tgis.TemporalAlgebraParser(run = True, debug = True)
expr = 'R = A : C'
ret = ta.setup_common_granularity(expression=expr)
ta.parse(expression=expr, basename="r", overwrite=True)
D = tgis.open_old_stds("R", type="strds")
self.assertEqual(D.metadata.get_number_of_maps(), 6)
self.assertEqual(D.metadata.get_min_min(), 1)
self.assertEqual(D.metadata.get_max_max(), 6)
start, end = D.get_absolute_time()
self.assertEqual(start, datetime.datetime(2001, 1, 1))
self.assertEqual(end, datetime.datetime(2001, 7, 1))
self.assertEqual( D.check_temporal_topology(), True)
self.assertEqual(D.get_granularity(), u'1 month')
def test_common_granularity_3(self):
"""Testing the common granularity function with gaps. """
ta = tgis.TemporalAlgebraParser(run = True, debug = True)
expr = 'R = A : D'
ret = ta.setup_common_granularity(expression=expr)
ta.parse(expression=expr, basename="r", overwrite=True)
D = tgis.open_old_stds("R", type="strds")
self.assertEqual(D.metadata.get_number_of_maps(), 3)
self.assertEqual(D.metadata.get_min_min(), 1)
self.assertEqual(D.metadata.get_max_max(), 5)
start, end = D.get_absolute_time()
self.assertEqual(start, datetime.datetime(2001, 1, 1))
self.assertEqual(end, datetime.datetime(2001, 6, 1))
self.assertEqual( D.check_temporal_topology(), True)
self.assertEqual(D.get_granularity(), u'1 month')
def test_common_granularity_4(self):
"""Testing the common granularity function year to month with gaps. """
ta = tgis.TemporalAlgebraParser(run = True, debug = True)
expr = 'R = C : D'
ret = ta.setup_common_granularity(expression=expr)
ta.parse(expression=expr, basename="r", overwrite=True)
D = tgis.open_old_stds("R", type="strds")
self.assertEqual(D.metadata.get_number_of_maps(), 3)
self.assertEqual(D.metadata.get_min_min(), 9)
self.assertEqual(D.metadata.get_max_max(), 9)
start, end = D.get_absolute_time()
self.assertEqual(start, datetime.datetime(2001, 1, 1))
self.assertEqual(end, datetime.datetime(2001, 6, 1))
self.assertEqual( D.check_temporal_topology(), True)
self.assertEqual(D.get_granularity(), u'1 month')
def test_common_granularity_4(self):
"""Testing the common granularity function year to month with gaps. """
ta = tgis.TemporalAlgebraParser(run = True, debug = True)
expr = 'R = C : D'
ret = ta.setup_common_granularity(expression=expr)
ta.parse(expression=expr, basename="r", overwrite=True)
D = tgis.open_old_stds("R", type="strds")
self.assertEqual(D.metadata.get_number_of_maps(), 3)
self.assertEqual(D.metadata.get_min_min(), 9)
self.assertEqual(D.metadata.get_max_max(), 9)
start, end = D.get_absolute_time()
self.assertEqual(start, datetime.datetime(2001, 1, 1))
self.assertEqual(end, datetime.datetime(2001, 6, 1))
self.assertEqual( D.check_temporal_topology(), True)
self.assertEqual(D.get_granularity(), u'1 month')
def test_common_granularity_5(self):
"""Testing the common granularity function year to month with gaps. """
ta = tgis.TemporalAlgebraParser(run = True, debug = True)
expr = 'R = A : C : D'
ret = ta.setup_common_granularity(expression=expr)
ta.parse(expression=expr, basename="r", overwrite=True)
D = tgis.open_old_stds("R", type="strds")
self.assertEqual(D.metadata.get_number_of_maps(), 3)
self.assertEqual(D.metadata.get_min_min(), 1)
self.assertEqual(D.metadata.get_max_max(), 5)
start, end = D.get_absolute_time()
self.assertEqual(start, datetime.datetime(2001, 1, 1))
self.assertEqual(end, datetime.datetime(2001, 6, 1))
self.assertEqual( D.check_temporal_topology(), True)
self.assertEqual(D.get_granularity(), u'1 month')
def test_common_granularity_6(self):
"""Testing the common granularity function year to month with gaps. """
ta = tgis.TemporalAlgebraParser(run = True, debug = True)
expr = 'R = if(start_month(A) > 2, A : C : D)'
ret = ta.setup_common_granularity(expression=expr)
ta.parse(expression=expr, basename="r", overwrite=True)
D = tgis.open_old_stds("R", type="strds")
self.assertEqual(D.metadata.get_number_of_maps(), 2)
self.assertEqual(D.metadata.get_min_min(), 3)
self.assertEqual(D.metadata.get_max_max(), 5)
start, end = D.get_absolute_time()
self.assertEqual(start, datetime.datetime(2001, 3, 1))
self.assertEqual(end, datetime.datetime(2001, 6, 1))
self.assertEqual( D.check_temporal_topology(), True)
self.assertEqual(D.get_granularity(), u'1 month')
if __name__ == '__main__':
grass.gunittest.test()