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"""Tests of start_command function family in nc location"""
LOCATION = 'nc'
from grass.gunittest.case import TestCase
from grass.gunittest.main import test
from grass.script.core import start_command, PIPE
class TestPythonKeywordsInParameters(TestCase):
"""Tests additional underscore syntax which helps to avoid Python keywords
It works the same for keywords, buildins and any names.
"""
raster = 'elevation'
# fresh region for each test function
def setUp(self):
self.use_temp_region()
def tearDown(self):
self.del_temp_region()
def test_prefixed_underscore(self):
proc = start_command(
'g.region', _raster=self.raster, stderr=PIPE)
stderr = proc.communicate()[1]
returncode = proc.poll()
self.assertEquals(returncode, 0,
msg="Underscore as prefix was not accepted")
self.assertNotIn(b'_raster', stderr)
def test_suffixed_underscore(self):
proc = start_command(
'g.region', raster_=self.raster, stderr=PIPE)
stderr = proc.communicate()[1]
returncode = proc.poll()
self.assertEquals(returncode, 0,
msg="Underscore as suffix was not accepted, stderr is:\n%s" % stderr)
self.assertNotIn(b'raster_', stderr)
def test_multiple_underscores(self):
proc = start_command(
'g.region', _raster_=self.raster, stderr=PIPE)
stderr = proc.communicate()[1]
returncode = proc.poll()
self.assertEquals(returncode, 1,
msg="Underscore at both sides was accepted")
self.assertIn(b'raster', stderr)
if __name__ == '__main__':
test()
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